教程

使用免费的AI视觉模型描述、生成说明或提取任意图片中的文字。

1. 1Upload an image, or paste a link to one.
2. 2Optionally type a prompt or question about the image.
3. 3Click Generate text to get an AI-written answer back.

将文本、HTML或网页转换成简洁美观、可下载的PDF文件——可选择字体、字号、页面大小和边距。

1. 1Write or paste your content, or switch to the URL tab and enter a page to fetch.
2. 2Check the live preview.
3. 3Click Download PDF to save it.

将一张或多张图片合并成一个可下载的PDF文件——可选择页面大小、方向和边距。

1. 1Add one or more images (drag & drop or browse).
2. 2Use the up/down arrows to reorder them.
3. 3Click Download PDF. Each image becomes its own page.

将多个PDF文件合并成一个文档。

1. 1Add two or more PDF files.
2. 2They'll be combined in the order added.
3. 3Click Merge to download the combined PDF.

将PDF的每一页导出为可下载的JPG图片。

1. 1Choose a PDF file.
2. 2Wait for each page to render as an image.
3. 3Download the pages you need individually.

输入或粘贴纯文本，下载为PDF文件——可选择字体、字号、页面大小和边距。

1. 1Write or paste your text.
2. 2Pick your font, size, page size and margins, then check the live preview.
3. 3Click Download PDF.

粘贴HTML代码，或通过URL获取网页，将其导出为PDF——可选择字体、字号、页面大小和边距。

1. 1Paste HTML, or switch to the URL tab and enter a page to fetch.
2. 2Pick your font, size, page size and margins, then check the live preview.
3. 3Click Download PDF.

在JPG、PNG和WebP格式之间转换图片。

1. 1Upload an image.
2. 2Pick the target format (JPG, PNG or WebP).
3. 3Click Convert & download.

将任意文本或URL转换成可自定义的二维码——选择颜色、大小，并导出为PNG或SVG。

1. 1Type a link or any text.
2. 2Customize color, size, and error correction (optional).
3. 3Download the PNG or SVG.

输入或粘贴文本，下载为.docx文件。

1. 1Write or paste your text.
2. 2Set a file name.
3. 3Click Download .docx.

用AI从图片中提取文字，再进行翻译。

1. 1Upload an image and pick the language the text is written in.
2. 2Click Extract text, then check/edit the result.
3. 3Pick a target language and click Translate.

将PDF转换成Word文件——可选择真正可编辑的文本和图片、保留原样的排版，或纯文本。

1. 1Choose a PDF file.
2. 2Pick Advanced (editable text + images), Visual (exact layout) or Text (plain) mode.
3. 3Click Convert & download the .docx.

将阿拉伯语 PDF 转换为可编辑的 Word 文档，正确重建从右到左的阅读顺序——不会出现文字倒序、数字错位或公式乱码。

1. 1Choose an Arabic (or mixed Arabic/English) PDF - it never leaves your browser.
2. 2Check the rebuilt reading order in the preview, including which regions stayed editable text and which were preserved as images.
3. 3Pick the Arabic font and download the .docx.

根据版面布局识别PDF中的真实表格，连同列结构一起导出为.xlsx表格文件。

1. 1Choose a PDF file.
2. 2Pick Advanced (detects real tables) or Basic (one row per line).
3. 3In Advanced mode, review the detected table(s), then download the .xlsx.

将发票PDF转换为.xlsx且不丢失明细表格——按位置而非OCR识别列结构。

1. 1Choose an invoice PDF.
2. 2Detect the line-item table in Advanced mode.
3. 3Review it, then download the .xlsx.

将Word文档转换成可下载的JPG图片。

1. 1Choose a .docx file.
2. 2Check the preview.
3. 3Click Download as JPG.

将PowerPoint文件转换成PDF，保留每张幻灯片真实的版面、文字格式和图片。

1. 1Choose a .pptx file.
2. 2Click Convert & download.
3. 3Each slide becomes a PDF page with its shapes, text, and images in place.

将PDF转换成PowerPoint文件——可选择真正可编辑的文本，或保留原样的图片。

1. 1Choose a PDF file.
2. 2Click Convert & download.
3. 3Each page's text becomes one slide.

AI 生成的演示文稿打开后只是无法点击的平面图片——本工具在保留原有设计的基础上，重建真正可编辑的 PowerPoint 文本框。

1. 1Upload the .pptx your AI presentation tool gave you.
2. 2Pick the language of the slide text and click Make this deck editable - flattened slides are found and read automatically; slides that already have real text are skipped.
3. 3Check the per-slide report, then download the rebuilt .pptx with live text boxes.

将Word文档转换成PDF。

1. 1Choose a .docx file.
2. 2Check the preview.
3. 3Click Download PDF.

将任意图片裁剪成圆形，下载为透明背景的PNG，可选彩色边框。

1. 1Upload an image.
2. 2Pick the output size and an optional border color/width.
3. 3Click Round image, then download the PNG.

通过设备本地运行的AI模型去除照片背景——保持透明，或替换为白色或任意自定义颜色。

1. 1Upload a photo.
2. 2Click Remove background.
3. 3Download the transparent PNG.

从图片反向生成可直接使用的AI绘图提示词。

1. 1Upload an image.
2. 2Click Generate prompt.
3. 3Copy the AI-written art prompt.

基于共同列合并两个表格，类似VLOOKUP功能。

1. 1Upload File A and File B.
2. 2Pick the shared column in each file.
3. 3Click Join & download.

使用免费的AI语音模型将音频文件转录为文字。

1. 1Upload an MP3, WAV or M4A file.
2. 2Click Transcribe.
3. 3Copy the transcript.

在大写、小写、首字母大写和句首大写之间转换文本。

1. 1Paste your text.
2. 2Pick a case.
3. 3Click Convert case.

粘贴列表，删除其中的重复行。

1. 1Paste your list.
2. 2Click Remove duplicate lines.
3. 3Copy the result.

粘贴文本，删除其中的空白行。

1. 1Paste your text.
2. 2Click Remove empty lines.
3. 3Copy the result.

粘贴列表，按字母顺序排序。

1. 1Paste your list.
2. 2Click Sort alphabetically.
3. 3Copy the result.

逐字符反转任意文本。

1. 1Paste your text.
2. 2Click Reverse.
3. 3Copy the result.

为没有重音符号的法语文本恢复正确的重音 - é è ê à ç ô - 像 ou/où 这类歧义情况根据句子上下文判断，而非查词典。

1. 1Paste French text typed without accents.
2. 2Optionally turn on the Quebec French vocabulary check.
3. 3Copy the restored text with accents correctly placed.

按5种真实官方标准并排转写乌克兰语、俄语或保加利亚语姓名 - KMU第55号决议、ICAO 9303、GOST 7.79-2000等。

1. 1Type a Cyrillic name.
2. 2Compare the transliteration under every official standard at once.
3. 3Copy the version required by your specific passport or visa authority.

将韩语姓名和地址转换为用于EMS邮寄的修正罗马字，将日语假名转换为MOFA护照黑本罗马字——采用真实的官方规则。

1. 1Pick Korean or Japanese.
2. 2Paste the name or address.
3. 3Copy the romanized result, built from the real official rule set.

检查长篇韩语文本中的맞춤법和띄어쓰기错误，每处修改都标明具体规则名称，而不只是给出改写后的文字。

1. 1Paste your Korean text - long text is fine.
2. 2Review each flagged correction and the rule behind it.
3. 3Copy the corrected text.

将随意的日语改写为规范的商务敬语——正确区分尊敬语、谦让语和丁宁语，并识别双重敬语和"打工敬语"等错误用法。

1. 1Paste casual Japanese text.
2. 2Pick an intensity: polite, formal or very formal.
3. 3Copy the rewritten keigo text.

将多行文本合并为单行。

1. 1Paste your text.
2. 2Click Remove line breaks.
3. 3Copy the result.

粘贴文本，删除其中重复的单词。

1. 1Paste your text.
2. 2Click Remove duplicate words.
3. 3Copy the result.

从一段文本中提取所有电子邮箱地址。

1. 1Paste text.
2. 2Click Extract emails.
3. 3Copy the list.

从一段文本中提取所有链接。

1. 1Paste text.
2. 2Click Extract URLs.
3. 3Copy the list.

实时统计单词数、字符数、句子数和阅读时间。

1. 1Type or paste text.
2. 2Watch the live counts update.
3. 3That's it.

实时统计字符数、单词数和句子数。

1. 1Type or paste text.
2. 2Watch the live counts update.
3. 3That's it.

在一段内容中查找并替换文字。

1. 1Paste your text.
2. 2Enter what to find and replace.
3. 3Click Replace.

逐行对比两段文本的差异。

1. 1Paste the original and changed text.
2. 2Click Compare.
3. 3Review the diff.

求两个列表的并集、交集或差集。

1. 1Paste List A and List B.
2. 2Pick a mode.
3. 3Click Compare lists.

格式化、验证或压缩JSON。

1. 1Paste your JSON.
2. 2Pick Format or Minify.
3. 3Copy the result.

将文本编码为Base64。

1. 1Paste your text.
2. 2Click Encode to Base64.
3. 3Copy the result.

将Base64文本解码回纯文本。

1. 1Paste Base64 text.
2. 2Click Decode from Base64.
3. 3Copy the result.

对文本进行URL百分号编码。

1. 1Paste your text.
2. 2Click Encode URL.
3. 3Copy the result.

将百分号编码的URL解码回纯文本。

1. 1Paste an encoded URL.
2. 2Click Decode URL.
3. 3Copy the result.

一次性生成文本的MD5、SHA-1、SHA-256和SHA-512哈希值。

1. 1Paste your text.
2. 2See all 4 hashes update live.
3. 3Copy any hash you need.

生成随机UUID（v4版本），可选带/不带连字符、大写或加花括号。

1. 1Set how many you need.
2. 2Pick hyphens, case and braces format.
3. 3Click Generate and copy all.

使用官方 mod-97 校验和验证任意 IBAN，解码银行和分行代码，并批量验证整个 CSV 列表。

1. 1Paste an IBAN, or switch to bulk mode and paste a list or CSV.
2. 2The mod-97 checksum, length and national account layout are checked instantly in your browser.
3. 3Read the decoded country, bank and branch codes, or download the bulk results as CSV.

一秒内离线验证欧盟增值税号，再通过官方 VIES 注册库查询企业名称。

1. 1Enter a VAT number, or paste up to 50 in bulk mode.
2. 2The format and national check digit are tested instantly in your browser.
3. 3Click Check against VIES for the official EU register answer, then export the results as CSV.

验证北欧和波兰的国民身份号码，或生成有效的测试号码——全部在浏览器中完成。

1. 1Pick the country and number type from the list.
2. 2Paste one number, or a whole list in bulk mode - nothing is ever sent to a server.
3. 3Read the checksum verdict and decoded birth date, or switch to generate mode for valid test numbers.

计算西班牙 DNI 或 NIE 的校验字母，验证 CIF，或一次性检查整份列表。

1. 1Paste a DNI, NIE or CIF - the type is detected automatically.
2. 2Or switch to letter mode and enter just the digits to calculate the control character.
3. 3Use bulk mode for a whole list, then download the results as CSV.

计算意大利 codice fiscale 并正确处理 omocodia 重码，或将任意税号反向解码为出生日期和出生地。

1. 1Enter surname, first name, birth date, sex and comune of birth.
2. 2The 16-character code appears instantly, with every part explained and the omocodia variants listed.
3. 3Or switch to reverse decode and paste a code to read back the birth date, sex and comune.

生成强随机密码。

1. 1Set length and character sets.
2. 2Click Generate.
3. 3Copy the password.

在最小值和最大值之间生成一个随机数。

1. 1Set min and max.
2. 2Click Generate.
3. 3Read the result.

生成二维码，让访客扫码即可连接你的WiFi。

1. 1Enter your network name and password.
2. 2Click Generate QR code.
3. 3Customize the style, then download the PNG or SVG.

将你的联系方式转换成可扫描的二维码电子名片。

1. 1Enter your contact details.
2. 2Click Generate QR code.
3. 3Customize the style, then download the PNG or SVG.

生成二维码，扫码即可打开带预填消息的WhatsApp聊天。

1. 1Enter a phone number and optional message.
2. 2Click Generate QR code.
3. 3Customize the style, then download the PNG or SVG.

生成中间嵌有你自己Logo的二维码。

1. 1Enter text or a URL.
2. 2Upload a logo image - error correction auto-locks to H so it stays scannable.
3. 3Customize color and size, then download the PNG or SVG.

将IBAN和金额转换成可扫描的SEPA付款二维码，欧洲各家银行App都能识别。

1. 1Enter the beneficiary name and IBAN - the checksum is verified as you type.
2. 2Add an amount and a payment reference, or leave the amount open.
3. 3Download the QR code as PNG or SVG.

生成并校验挪威KID、瑞典OCR、芬兰viitenumero和RF付款参考号。

1. 1Pick the reference standard: KID, OCR, viitenumero or RF.
2. 2Enter your base number to get the reference with its check digit.
3. 3Or switch to Validate and paste a reference to check it.

把发票号转换成带正确mod-97校验位的+++123/4567/89012+++参考号。

1. 1Type your invoice or customer number.
2. 2Copy the +++ reference, the *** form or the bare digits.
3. 3Or send it straight into a SEPA payment QR code.

生成可打印的瑞士QR付款单PDF，含法定瑞士十字标记。

1. 1Enter your Swiss IBAN or QR-IBAN, name and address.
2. 2Add the amount, currency and a reference if you use one.
3. 3Download the QR-bill as a printable PDF.

根据IBAN、金额、参考号和到期日生成54位芬兰银行条形码。

1. 1Enter the Finnish IBAN, amount and reference number.
2. 2Pick the due date - it is encoded as YYMMDD.
3. 3Download the barcode as PNG or print-ready SVG.

生成西班牙发票必须附带的AEAT VeriFactu二维码，编码准确无误。

1. 1Enter the issuer NIF, invoice series and number, date and total.
2. 2Choose VERI*FACTU or non-VERI*FACTU mode.
3. 3Download the QR and print it at 30-40 mm with its legend.

将图片调整为预设尺寸（Instagram、高清、护照照片）或自定义精确尺寸。

1. 1Upload an image.
2. 2Pick a preset or enter custom width/height.
3. 3Click Resize & download.

将图片压缩到指定的目标文件大小（KB），可选50、100、200或自定义。

1. 1Upload an image.
2. 2Pick or type a target size in KB.
3. 3Click Compress & download.

将图片压缩到100KB以下，适用于有此限制的表单和申请门户。

1. 1Upload an image.
2. 2Click Compress to 100 KB.
3. 3Download the result.

将图片压缩到50KB以下，适用于严格的上传限制。

1. 1Upload an image.
2. 2Click Compress to 50 KB.
3. 3Download the result.

将图片压缩到200KB以下，兼顾网页使用的画质与体积。

1. 1Upload an image.
2. 2Click Compress to 200 KB.
3. 3Download the result.

将PDF拆分为单独页面或自定义页码范围，打包为zip下载。

1. 1Choose a PDF.
2. 2Pick every page or custom ranges.
3. 3Click Split & download.

缩小PDF文件体积，尤其适合扫描件或图片较多的PDF。

1. 1Choose a PDF.
2. 2Pick a compression level.
3. 3Click Compress & download.

使用免费AI OCR从截图中提取全部文字。

1. 1Upload a screenshot.
2. 2Click Extract text.
3. 3Copy the result.

使用免费AI OCR从JPG图片中提取文字。

1. 1Upload a JPG.
2. 2Click Extract text.
3. 3Copy the result.

使用免费AI OCR从PNG图片中提取文字。

1. 1Upload a PNG.
2. 2Click Extract text.
3. 3Copy the result.

使用免费AI OCR从照片中提取文字。

1. 1Upload a photo.
2. 2Click Extract text.
3. 3Copy the result.

使用免费AI OCR从任意图片中提取文字。

1. 1Upload an image.
2. 2Click Extract text.
3. 3Copy the result.

使用免费AI OCR从图片中提取阿拉伯语文字。

1. 1Upload an image with Arabic text.
2. 2Click Extract text.
3. 3Copy the result.

使用AI将手写内容照片转换成打印文字。

1. 1Upload a photo of handwriting.
2. 2Click Transcribe.
3. 3Copy the result.

使用AI将小票照片中的商家、明细项目和总金额提取到可编辑表格中——支持下载为.xlsx或.csv。

1. 1Upload a photo of a receipt.
2. 2Review and correct the extracted line items.
3. 3Download as .xlsx or .csv.

使用AI将发票中的供应商、明细项目和总金额提取到可编辑表格中——支持下载为.xlsx或.csv。

1. 1Upload a photo or scan of an invoice.
2. 2Review and correct the extracted line items.
3. 3Download as .xlsx or .csv.

使用AI将代码截图或界面设计图转换成带高亮的、可直接复制的代码。

1. 1Upload a screenshot of code or a UI.
2. 2Click Generate code.
3. 3Copy or download.

使用AI将截图内容转换成Markdown，并提供实时格式化预览。

1. 1Upload a screenshot.
2. 2Click Generate Markdown.
3. 3Toggle the preview, then copy or download.

使用AI将截图内容转换成结构化并经过校验的JSON。

1. 1Upload a screenshot.
2. 2Click Generate JSON.
3. 3Copy or download.

使用AI将任意图片内容转换成Markdown，并提供实时格式化预览。

1. 1Upload an image.
2. 2Click Generate Markdown.
3. 3Toggle the preview, then copy or download.

使用AI将任意图片内容转换成结构化并经过校验的JSON。

1. 1Upload an image.
2. 2Click Generate JSON.
3. 3Copy or download.

使用AI为图片撰写无障碍且利于SEO的替代文本,并生成匹配的SEO文件名和标题。

1. 1Upload an image.
2. 2Click Generate alt text.
3. 3Copy the result.

重写AI生成的文本，使其读起来更自然，提供语气和改写强度控制。

1. 1Paste your text.
2. 2Pick a tone and rewrite intensity.
3. 3Click Humanize text and copy the result.

把一句简单描述变成专业、可直接粘贴的提示词，分别针对ChatGPT、Claude、Midjourney、Stable Diffusion等模型定制。

1. 1Pick the AI you are writing for - ChatGPT, Claude, Midjourney, Stable Diffusion, Sora and more.
2. 2Describe what you want in plain words, or start from one of the 20 built-in templates.
3. 3Generate, copy the finished prompt, and read why it is built that way - or regenerate with a different emphasis.

在不丢失原意的前提下缩短冗长的AI提示词，并清楚看到节省了多少token。

1. 1Paste your long prompt and watch the live token count.
2. 2Choose Light, Balanced or Aggressive compression.
3. 3Check the diff and the token savings, then copy the shorter prompt.

使用AI生成4个SEO元描述选项，每个都配有针对理想长度的实时字数统计。

1. 1Paste your page content.
2. 2Click Generate descriptions.
3. 3Pick the option that fits the ideal length, and copy it.

使用AI生成4个利于SEO的页面标题选项，每个都配有针对理想长度的实时字数统计。

1. 1Paste your page content.
2. 2Click Generate titles.
3. 3Pick the option that fits the ideal length, and copy it.

使用AI生成schema.org格式的JSON-LD结构化数据，经过校验，可直接粘贴为script标签。

1. 1Paste your page content.
2. 2Pick a schema type.
3. 3Click Generate schema, then copy the <script> tag.

把用大白话描述的任务变成可直接用于 Claude Code 的 SKILL.md 文件，名称和描述实时校验。

1. 1Describe the task or workflow you keep repeating.
2. 2Edit the generated name, description and instructions - each is checked live against the real Agent Skills constraints.
3. 3Download SKILL.md and save it to the exact path shown for personal or project scope.

描述一个重复性操作，直接得到可保存的 Claude Code 斜杠命令文件，并自动带上正确的 $ARGUMENTS 占位符。

1. 1Describe the quick action you want a /command for.
2. 2Pick the command name and check the frontmatter and detected $ARGUMENTS placeholders.
3. 3Download the .md file and save it to ~/.claude/commands/ or .claude/commands/.

描述你想委派出去的任务，直接得到可用的 Claude Code 子智能体文件：名称、路由描述、工具白名单和完整系统提示词。

1. 1Describe the specialized job you want to delegate - reviewing PRs for security issues, writing unit tests, researching a codebase.
2. 2Check the generated name and description, and tighten the tools allowlist to the minimum the job needs.
3. 3Copy or download the file and save it to .claude/agents/<name>.md, then reload Claude Code.

将图片转换成Base64数据URL。

1. 1Upload an image.
2. 2Copy the Base64 data URL.
3. 3Paste it into your CSS/HTML.

先查看照片中究竟有哪些元数据——GPS位置、相机型号、拍摄日期，再将其清除。

1. 1Upload a photo.
2. 2Review the GPS, camera and date metadata found.
3. 3Click Remove metadata & download.

修正老照片的泛黄色偏、褪色对比度、噪点和模糊——六项可调校正，全部在浏览器中完成。

1. 1Upload a scan or photo of an old print - it stays on your device.
2. 2Pick a preset, then fine-tune the six correction stages individually.
3. 3Compare with the before/after slider and download the restored photo.

从PDF中提取纯文字，保存为.txt文件。

1. 1Choose a PDF.
2. 2Review the extracted text.
3. 3Click Download .txt.

将PDF转换为干净的Markdown——从页面版式中识别标题、列表和表格，可直接粘贴到ChatGPT或Claude。

1. 1Drop in a PDF - it is read in your browser and never uploaded.
2. 2Check the detected headings, lists and tables in the live preview, and toggle any detection you want changed.
3. 3Copy the Markdown or download the .md file.

将HTML或任意网页URL转换为干净的Markdown，自动去除导航、广告和脚本——为ChatGPT或Claude节省最多90%的Token。

1. 1Paste HTML, upload an .html file, or enter a page URL to fetch.
2. 2Navigation, ads and scripts are stripped automatically - adjust the options if you want the whole document.
3. 3Copy the Markdown or download the .md file.

将Word文档转换成干净的Markdown，保留标题、嵌套列表、表格、链接和图片，并显示节省了多少AI令牌。

1. 1Drag & drop your .docx file, or click to browse.
2. 2Check the rendered preview or the raw Markdown source, and see the token comparison.
3. 3Copy the Markdown, or download it as a .md file (or a ZIP with the images).

将Excel工作簿或CSV文件转换成有效的Markdown表格，每个工作表一个，并正确转义单元格内的竖线和换行符。

1. 1Drag & drop an .xlsx, .csv or .tsv file, or click to browse.
2. 2Pick your sheets, set whether row 1 is a header, and choose how many rows to include.
3. 3Copy the Markdown tables, or download them as a .md file.

将 .pptx 演示文稿转换为整洁的 Markdown：带编号的幻灯片、嵌套项目符号、真实表格和演讲者备注，可直接粘贴到 ChatGPT、Claude 或 Gemini。

1. 1Drag and drop your .pptx file, or click to browse.
2. 2Choose whether to include speaker notes, hidden slides and image references.
3. 3Copy the Markdown, or download the .md (a ZIP with the images if your deck has any).

使用AI提取截图中的文字，下载为.docx文件。

1. 1Upload a screenshot.
2. 2Click Extract text.
3. 3Click Download .docx.

将一张或多张截图合并成一个PDF文件——可选择页面大小、方向和边距。

1. 1Add one or more screenshots.
2. 2Choose page size, orientation and margins.
3. 3Reorder if needed, then click Download PDF.

为图片添加文字或Logo水印——可自定义颜色、旋转角度和平铺图案，并提供实时预览。

1. 1Upload an image.
2. 2Set text/logo, position, color, rotation and opacity.
3. 3Preview live, then apply & download.

为PDF的每一页添加可自定义样式的文字或Logo水印——自选颜色、字体、大小和旋转角度。

1. 1Upload a PDF.
2. 2Set text/logo, position and opacity.
3. 3For text, pick a color, font, size and rotation angle, then apply & download.

粘贴URL列表，删除其中的重复项。

1. 1Paste your URLs.
2. 2Click Remove duplicate URLs.
3. 3Copy the result.

从URL列表中清除UTM跟踪参数。

1. 1Paste your URLs.
2. 2Click Remove UTM parameters.
3. 3Copy the result.

清理URL列表中的UTM跟踪参数。

1. 1Paste your URLs.
2. 2Click Remove UTM parameters.
3. 3Copy the result.

粘贴列表，找出其中重复的行。

1. 1Paste your list.
2. 2Click Find duplicate lines.
3. 3Copy the result.

将两个列表合并为一个，可选择自动去重。

1. 1Paste List A and List B.
2. 2Toggle dedupe if needed.
3. 3Click Merge lists.

将带分隔符的文本转换成格式规范的CSV。

1. 1Paste your delimited text.
2. 2Pick the delimiter.
3. 3Click Convert to CSV.

将CSV转换成以制表符分隔的纯文本。

1. 1Paste your CSV.
2. 2Click Convert to text.
3. 3Copy the result.

粘贴URL列表，只提取其中的域名。

1. 1Paste your URLs.
2. 2Click Extract domains.
3. 3Copy the result.

清除URL列表中的所有查询参数。

1. 1Paste your URLs.
2. 2Click Remove all parameters.
3. 3Copy the result.

将标题或URL列表转换成简洁、适合URL使用的slug。

1. 1Paste your titles or URLs.
2. 2Click Generate slugs.
3. 3Copy the result.

统一URL列表的格式：协议、域名小写、结尾斜杠等。

1. 1Paste your URLs.
2. 2Click Format URLs.
3. 3Copy the result.

填写可填写PDF表单的文本字段、复选框和下拉菜单，无需Adobe。

1. 1Choose a fillable PDF.
2. 2Fill in the detected fields.
3. 3Click Fill form & download.

资料只需填写一次，即可同时填好一整叠不同的 PDF 表单。

1. 1Fill in your profile once - name, address, phone, your child's details.
2. 2Drop in every PDF form at the same time.
3. 3Check anything flagged for review, then download them all as a ZIP.

通过页面缩略图直观地旋转、重新排序或删除PDF页面。

1. 1Choose a PDF.
2. 2Rotate, reorder or delete pages.
3. 3Download the organized PDF.

绘制或输入签名——可选择墨水颜色或手写体字体——然后将其拖动到PDF页面上你想要的确切位置。

1. 1Choose a PDF.
2. 2Draw or type your signature, then drag and resize it on the page preview.
3. 3Click Sign PDF & download.

为PDF的每一页添加页码，支持9宫格位置选择，并可自定义颜色、字体、大小和边距。

1. 1Choose a PDF.
2. 2Pick a position from the 9-spot grid, then set color, font, size and margin.
3. 3Set the start number and format, then click Add page numbers & download.

清除PDF中的标题、作者等文档属性。

1. 1Choose a PDF.
2. 2Review the detected metadata.
3. 3Click Remove metadata & download.

将iPhone的HEIC/HEIF照片转换为JPG。

1. 1Choose a HEIC/HEIF photo.
2. 2Click Convert to JPG & download.
3. 3Done.

将iPhone的HEIC/HEIF照片转换为PNG。

1. 1Choose a HEIC/HEIF photo.
2. 2Click Convert to PNG & download.
3. 3Done.

将iPhone的HEIC/HEIF照片转换为WebP。

1. 1Choose a HEIC/HEIF photo.
2. 2Click Convert to WEBP & download.
3. 3Done.

将AVIF图片转换为JPG、PNG或WebP。

1. 1Choose an AVIF image.
2. 2Pick the target format.
3. 3Click Convert & download.

将PDF压缩到100KB以下，适用于表单和邮件附件限制。

1. 1Choose a PDF.
2. 2Click Compress to 100 KB.
3. 3Download the result.

将PDF压缩到1MB以下，常见的邮件和上传限制。

1. 1Choose a PDF.
2. 2Click Compress to 1 MB.
3. 3Download the result.

将PDF压缩到2MB以下，常见的邮件和上传限制。

1. 1Choose a PDF.
2. 2Click Compress to 2 MB.
3. 3Download the result.

将A4纸张尺寸按任意DPI（72、96、150、300、600）换算为像素。

1. 1Pick or type a DPI.
2. 2Read the pixel dimensions.
3. 3That's it.

将图片裁剪并调整为Discord表情的128x128px尺寸，控制在256KB以内。

1. 1Upload an image.
2. 2Click Resize to 128x128.
3. 3Download the result.

将照片裁剪为美国、英国、欧盟/申根、印度、加拿大或澳大利亚护照照片的正确尺寸，并提供背景检测和打印排版。

1. 1Upload a photo.
2. 2Pick your country's format and drag/zoom to frame the head and shoulders.
3. 3Click Create passport photo - we'll flag it if the background isn't light and even.
4. 4Download the photo, or export a 4x6in print sheet with multiple copies.

使用浏览器内置的文本转语音功能朗读PDF。

1. 1Choose a PDF.
2. 2Pick a voice and speed.
3. 3Click Play.

生成可下载的条形码，支持CODE128、EAN、UPC等格式。

1. 1Type a value.
2. 2Pick a barcode format.
3. 3Generate and download the PNG.

检查URL列表中的失效链接，查看每个链接的HTTP状态码。

1. 1Paste up to 30 URLs, one per line.
2. 2Click Check links.
3. 3Review each status.

将视频片段（最长15秒）转换为GIF动图。

1. 1Choose a video.
2. 2Set the start time, duration and size.
3. 3Convert & download the GIF.

使用平滑高质量插值将图片放大2倍、3倍或4倍，并提供前后对比滑块。

1. 1Upload an image.
2. 2Pick a scale factor.
3. 3Compare before/after, then upscale & download.

查询任意域名的A、AAAA、MX、TXT、NS、CNAME、SOA和CAA记录。

1. 1Type a domain.
2. 2Click Look up.
3. 3Review each record type.

查询域名的注册商、注册/到期日期和域名服务器。

1. 1Type a domain.
2. 2Click Look up.
3. 3Review the WHOIS record.

检测域名的SSL/TLS证书：颁发者、有效期和剩余天数。

1. 1Type a domain.
2. 2Click Check.
3. 3Review the certificate details.

检测页面的标题、元描述以及Open Graph和Twitter Card标签。

1. 1Paste a page URL.
2. 2Click Check.
3. 3Review the tags and social preview.

从一张图片生成完整的favicon图标集（16x16到512x512），支持背景色/内边距设置并提供预览。

1. 1Upload a logo or image.
2. 2Set background color and padding, and preview every size.
3. 3Click Generate favicon set and download the zip.

使用浏览器内置的语音朗读输入或粘贴的文本。

1. 1Type or paste text.
2. 2Pick a voice and speed.
3. 3Click Play.

填写表单即可获得有效的schema.org JSON-LD，结果确定，非AI猜测生成。

1. 1Pick a schema type.
2. 2Fill in the fields.
3. 3Copy the generated JSON-LD script tag.

将位图（PNG、JPG）描摹为可缩放的SVG矢量路径。

1. 1Upload an image.
2. 2Pick a style preset and color count.
3. 3Vectorize & download the SVG.

通过描摹形状和颜色，将PNG图片转换为SVG矢量图。

1. 1Upload a PNG.
2. 2Pick a style preset and color count.
3. 3Vectorize & download the SVG.

将位图logo转换为可无损缩放到任意大小的干净SVG。

1. 1Upload your logo.
2. 2Pick a style preset and color count.
3. 3Vectorize & download the SVG.

计算Y的X%、X是Y的百分之多少,或两个数字之间的百分比变化。

1. 1Pick a calculation mode.
2. 2Enter your two numbers.
3. 3Read the result instantly.

根据百分比或固定折扣计算最终价格和节省的金额。

1. 1Enter the original price.
2. 2Enter a percentage or flat discount.
3. 3Read the final price and savings.

在美式、英式和加拿大英语拼写之间转换文本 - 提供真正的加拿大预设，并标记有歧义的词而非盲目替换。

1. 1Paste your text and pick the source and target variety (US, British or Canadian).
2. 2Choose whether British uses -ise or Oxford -ize, and whether to swap vocabulary too.
3. 3Copy the converted text, and review any ambiguous words the tool flagged.

将数字转换为支票上的法定大写金额，支持英语和魁北克法语，并提供支票样式预览。

1. 1Type the amount, like 1234.56.
2. 2Switch between English and Quebec French, and pick the fraction or fully-spelled-out wording.
3. 3Copy the line and check it against the cheque preview before you write it.

为价格加上销售税，或从含税总额中反推税前价格，覆盖所有美国州和加拿大省份，含反算 HST 和 QST。

1. 1Pick your country and state or province.
2. 2Choose Add tax or Remove tax, then enter the amount.
3. 3Read the tax breakdown, or switch on receipt mode for several line items at once.

记录商务行程并计算正确的 IRS 或 CRA 里程抵扣，生成可直接归档的 PDF 和 CSV。

1. 1Pick IRS or CRA and the tax year.
2. 2Add a row per trip: date, from, to, business purpose and distance.
3. 3Download the log as a formatted PDF or CSV for your records.

批量规范北美电话号码并校验加拿大邮编和美国 ZIP，每一行都给出失败原因。

1. 1Paste your list, one value per line or a whole CSV column.
2. 2Pick the column and what to expect, then click Clean list.
3. 3Review the per-row status and download the cleaned CSV.

根据出生日期计算精确的年龄(年、月、日)。

1. 1Enter a birth date.
2. 2Optionally set an "as of" date.
3. 3Read the exact age and total days lived.

计算两个日期之间相差的天数、周数、月数和年数。

1. 1Pick Date A and Date B.
2. 2Read the difference.
3. 3Values update instantly as you change dates.

将宽度/高度化简为比例,并计算保持该比例所需的缺失尺寸。

1. 1Enter a width and height.
2. 2Read the simplified ratio.
3. 3Lock it to calculate a missing dimension.

在像素、英寸、厘米和DPI之间转换,修改任意一项,其余项自动更新。

1. 1Enter any of pixels, inches, cm or DPI.
2. 2The other three update automatically.
3. 3Use it for print or screen sizing.

依据所在国家的真实法定假日，用少量年假拼出连续数周的假期。

1. 1Pick your country - and your Bundesland, canton or region, since holidays differ.
2. 2Enter how many vacation days you have for the year.
3. 3Read the ranked bridges and download your plan as a calendar file.

按每种食材真实密度，将整份食谱在克与杯之间换算，并附烤箱温度对照。

1. 1Paste your whole ingredient list, one item per line.
2. 2Pick whether you want grams or cups.
3. 3Copy the converted recipe - each line shows the density figure it used.

按交易当日的欧洲央行官方参考汇率换算外币票据，而非今日汇率。

1. 1Pick the two currencies and enter the amount from the receipt.
2. 2Set the date the transaction actually happened.
3. 3Copy the converted amount, the rate and the ECB publication date for your books.

生成一份符合DIN 5008 A/B表格规范的德国商务信函PDF，地址栏、折叠标记和打孔标记均精确到规定的毫米位置。

1. 1Fill in sender, recipient, subject and body.
2. 2Pick Form A or Form B.
3. 3Download the finished PDF with correctly positioned fold and punch marks.

查询挪威或丹麦企业注册号，直接生成可粘贴的发票抬头。

1. 1Choose Norway or Denmark and type the registration number.
2. 2The checksum is verified in your browser, then the register is queried.
3. 3Copy the invoice header, or add the company to a list and export CSV.

免费生成无依赖的原生JS Cookie同意横幅，在用户同意前真正阻止脚本运行——无需Cookiebot，没有页面访问量限制。

1. 1Pick your cookie categories and add your privacy policy link.
2. 2Copy the generated vanilla JS + CSS snippet.
3. 3Gate your non-essential scripts behind the provided consent check.

检查网址、HTML或标签是否存在魁北克96号法案相关问题——仅有英文而无对应法文内容，以及法文是否明显占主导地位。

1. 1Paste a URL, HTML, or product-label text.
2. 2Review the flagged English-only elements and the French-predominance check.
3. 3Use it as a screening aid before a legal review, not a substitute for one.

一次性验证整份英国邮编CSV列表，获取经纬度、选区、行政区和LSOA信息——免费，无需API密钥，无需注册。

1. 1Paste or upload a CSV of UK postcodes.
2. 2Review the per-row validation and geocoding results.
3. 3Export the enriched list as CSV.

将瑞典、挪威或丹麦的机构注册号转换为对应的增值税/MVA号码，包含校验位验证和批量CSV模式。

1. 1Pick Sweden, Norway or Denmark and enter the organization number.
2. 2Read the converted VAT/MVA number, or a clear note where it isn't a simple 1:1 formula.
3. 3Use bulk mode for a whole list, then export CSV.

将Unix时间戳转换为可读日期,或反向转换,并实时显示当前时间戳。

1. 1Paste a timestamp to convert it to a date.
2. 2Or pick a date to get its timestamp.
3. 3Unit (seconds/ms) is auto-detected.

将5字段的cron表达式转换为通俗易懂的描述,并显示接下来的运行时间。

1. 1Paste a 5-field cron expression.
2. 2Read the plain-English description.
3. 3Check the next 5 upcoming run times.

将JWT的header和payload解码为可读的JSON,不进行签名验证。

1. 1Paste a JWT.
2. 2Review the decoded header and payload.
3. 3Nothing is sent anywhere - it's decoded locally.

针对字符串测试正则表达式,查看每个匹配项和捕获组的高亮显示。

1. 1Enter a pattern and flags.
2. 2Paste a test string.
3. 3Review the highlighted matches and groups.

在HEX、RGB和HSL之间转换颜色,并实时预览色块。

1. 1Edit the HEX, RGB or HSL value.
2. 2The other formats update instantly.
3. 3Copy whichever format you need.

从头开始或使用预设,可视化创建线性、径向或锥形CSS渐变,并复制代码。

1. 1Add two or more color stops.
2. 2Pick an angle or radial shape.
3. 3Copy the generated CSS.

将对象组成的JSON数组转换为格式规范的CSV。

1. 1Paste a JSON array of objects.
2. 2Click Convert to CSV.
3. 3Copy the result.

将带标题行的CSV转换为对象组成的JSON数组。

1. 1Paste CSV with a header row.
2. 2Click Convert to JSON.
3. 3Copy the result.

将JSON转换为整洁、缩进规范的YAML。

1. 1Paste your JSON.
2. 2Click Convert to YAML.
3. 3Copy the result.

将原始SVG代码转换为URL编码的data URI,可用于CSS的background-image。

1. 1Paste raw SVG markup.
2. 2Check the live preview.
3. 3Copy the data URI or CSS snippet.

将PDF压缩到500KB以下，适用于电子签证和在线门户的常见限制。

1. 1Choose a PDF.
2. 2Click Compress to 500 KB.
3. 3Download the result.

将PDF压缩到300KB以下，适用于限制严格的表单和门户网站。

1. 1Choose a PDF.
2. 2Click Compress to 300 KB.
3. 3Download the result.

将图片压缩到20KB以下，适用于最严格的上传限制。

1. 1Upload an image.
2. 2Click Compress to 20 KB.
3. 3Download the result.

将图片压缩到30KB以下，适用于严格的上传限制。

1. 1Upload an image.
2. 2Click Compress to 30 KB.
3. 3Download the result.

将任意图片裁剪并调整为精确的600x600像素。

1. 1Upload an image.
2. 2Click Resize to 600x600.
3. 3Download the PNG.

将任意图片裁剪并调整为精确的300x300像素。

1. 1Upload an image.
2. 2Click Resize to 300x300.
3. 3Download the PNG.

绘制手写风格的签名，并下载为透明背景的PNG图片——可选择墨水颜色和笔画粗细。

1. 1Draw your signature on the canvas.
2. 2Pick an ink color and pen thickness.
3. 3Click Download PNG.

查找并移除文本中的零宽空格、连接符等隐形Unicode字符。

1. 1Paste your text.
2. 2Review which invisible characters were found.
3. 3Copy or download the cleaned text.

修复ZIP压缩包内的乱码文件名，重新解码后以正确的UTF-8重建压缩包。

1. 1Upload the ZIP whose filenames came out garbled.
2. 2Check the detected encoding and the old-to-new name preview, editing any name that still looks wrong.
3. 3Download the rebuilt archive with correct UTF-8 filenames.

在全角与半角之间转换字母、数字、符号和片假名，可按字符类型选择并支持CSV批量模式。

1. 1Pick a direction: full-width to half-width, or the reverse.
2. 2Tick which character types to convert - numbers, Latin letters, katakana, symbols or spaces.
3. 3Paste your text (or a CSV in bulk mode) and copy or download the result.

粘贴乱码文本，获得按可信度排序的修复结果，可修复日文、韩文、中文和欧洲文字的编码错乱。

1. 1Paste the garbled text into the box.
2. 2Compare the ranked repair candidates and pick the one that reads correctly.
3. 3Copy or download the repaired text.

将韩文音节拆分为字母组件、将字母重新组合成音节，并提取首字母用于搜索索引。

1. 1Choose a mode: decompose, compose, or extract initial consonants.
2. 2Paste your Korean text.
3. 3Read the component breakdown with code points, then copy the result or download it as CSV.

从图片或截图中识别二维码，显示链接的真实目标地址，并规范呈现Wi-Fi、联系人和日历类二维码。

1. 1Upload an image, drag one in, or press Ctrl+V to paste a screenshot.
2. 2Read the decoded contents - links show the real destination domain and any warnings.
3. 3Copy the raw text, open the link, or save a contact card as .vcf.

通过重新编码图片来破坏其中隐藏的隐写水印图案。

1. 1Upload an image.
2. 2Click Remove invisible watermark.
3. 3Download the re-encoded result.

使用精确的反向 alpha 混合运算,从 AI 生成的图片中移除小小的 Gemini(Nano Banana)徽标水印,无需上传。

1. 1Upload an image generated by Google Gemini / Nano Banana.
2. 2Check the highlighted watermark box - drag or nudge it if it isn't lined up exactly.
3. 3Click Remove watermark, then download the cleaned PNG.

扫描PDF、DOCX或PPTX文件,检测隐藏文本、不可见水印字符和隐藏的元数据。

1. 1Upload a PDF, DOCX or PPTX file.
2. 2Review the hidden content that was found, including invisible watermark characters.
3. 3Download a cleaned copy where cleaning is supported.

使用AI为任意主题生成结构化学习大纲、核心主题和研究问题。

1. 1Enter a subject and pick a level.
2. 2Click Generate outline.
3. 3Review the outline, themes and (for PhD/Graduate) search-term links.

根据你的收入目标、开支和工作时长,计算最低、可持续和推荐时薪。

1. 1Enter your income goal, expenses, hours and utilization.
2. 2Read the three rate tiers.
3. 3Use the project calculator to quote a fixed-hours project.

估算法国、德国、英国、加拿大、西班牙和美国的法定遣散费与通知期，每个数字都附带完整计算过程和对应的法律条文。

1. 1Pick the country the work is performed in (and for Canada, whether the job is federally or provincially regulated).
2. 2Enter your length of service as years and months, plus your gross salary.
3. 3Read the step-by-step breakdown - every figure shows the formula it came from and links the article of law behind it.

将婚礼总预算按场地餐饮、摄影摄像、服装等类别进行分配。

1. 1Enter your total budget and guest count.
2. 2Review the category breakdown.
3. 3Adjust category percentages if you like.

用AI为你的租房申请撰写一封精炼、专业的申请信。

1. 1Enter your name, occupation, income range and rental history.
2. 2Describe why you want this specific place.
3. 3Click Generate cover letter and copy the result.

将你的作文题目和个人背景转化为结构化、可勾选的大纲，帮助你自己撰写奖学金文书。

1. 1Enter the essay prompt or theme.
2. 2Describe your background, achievements and goals.
3. 3Click Generate outline and write your essay from it.

将房屋维修问题转化为清晰的承包商报价说明，并提供明确的费用区间。

1. 1Pick the damage type and describe the problem.
2. 2Enter the approximate size or scope.
3. 3Click Generate and copy the description and cost range.

根据你的器材、健身水平、时间和目标，定制专属居家锻炼计划——真实动作、要领提示，并可下载可打印的PDF。

1. 1Select your equipment, level, time, goal, and any areas to avoid.
2. 2Click Generate workout and review your day-by-day plan.
3. 3Follow along in Start Workout mode, or download the printable PDF.

生成逐日备餐计划，以及可勾选、按超市分区整理的采购清单。

1. 1Pick a diet type, number of days and meals per day.
2. 2Click Generate meal plan.
3. 3Shop from the organized grocery list.

根据宠物类型、毛色和性格，用AI获取15-20个可单独复制的宠物名字建议。

1. 1Enter your pet's type, color and personality.
2. 2Pick a style preference.
3. 3Click Generate names and copy your favorites.

根据年级、科目、时间和现有教具生成一份可视化时间安排的完整代课教案。

1. 1Enter the grade level, subject and time available.
2. 2List the materials on hand.
3. 3Click Generate lesson plan and copy the result.

用AI为你的教授撰写一封礼貌、专业的邮件。

1. 1Pick the scenario and enter your course name.
2. 2Explain the reason in your own words.
3. 3Click Generate email, then personalize before sending.

将简单描述的项目转化为详细的报价请求信息，方便向承包商询价。

1. 1Describe your project in plain language.
2. 2Add any known specifics like dimensions or timeline.
3. 3Click Generate request and copy it.

用AI根据你们的关系和语气获取5条可单独复制的生日祝福语选项。

1. 1Pick the relationship, tone and age (optional).
2. 2Click Generate messages.
3. 3Copy the option you like best.

将汽车症状转化为清晰的描述以便告知维修技师，并列出真实的可能原因清单供询问。

1. 1Pick the symptom type and describe when it happens.
2. 2Add your car's make/model/year (optional).
3. 3Click Generate and share the result with your mechanic.

获取5条适合你所选平台风格的简介选项，并提供针对该平台真实字数限制的实时字数统计。

1. 1Pick your platform, interests and desired vibe.
2. 2Click Generate bios.
3. 3Copy the one that fits best.

为任何活动生成完整的邀请函文案，可直接粘贴到卡片或消息中使用。

1. 1Pick the event type and tone.
2. 2Enter the date, time, location and theme.
3. 3Click Generate invitation and copy the wording.

将食材用量换算为任意份数，并查看常见食材替代方案。

1. 1Paste your ingredient list, one per line.
2. 2Enter the original and desired servings.
3. 3Read the scaled amounts and substitution ideas.

将简历要点改写成多个可复制的版本，用更有力的动作动词表达，绝不编造虚假数据。

1. 1Paste your existing resume bullet point.
2. 2Optionally add a target job description or key skills.
3. 3Click Rewrite bullet and pick your favorite version.

将简历与职位描述对比，查看匹配和缺失的关键词。

1. 1Paste your resume text.
2. 2Paste the job description text.
3. 3Click Compare keywords to see matches and gaps.

将照片转换为清晰的扫描件，把多页合并成一个PDF，或以固定比例裁剪扫描身份证和护照。

1. 1Upload or take a photo of a document, or switch to ID Card mode.
2. 2Adjust the corners (or use auto-detect) so they trace its edges.
3. 3Add more pages if needed, pick a filter, then Scan & download.

在敏感文字上绘制黑色遮盖框，并将其永久嵌入PDF页面中。

1. 1Choose a PDF.
2. 2Draw black boxes over anything to redact, on any page.
3. 3Click Apply & download.

逐页提取并对比两份PDF的文本内容。

1. 1Choose PDF A and PDF B.
2. 2Click Compare PDFs.
3. 3Review the added/removed lines per page.

用AI转录视频中的语音，并下载.srt和.vtt字幕文件。

1. 1Choose a video.
2. 2Click Generate subtitles.
3. 3Download the .srt or .vtt file.

用AI将原始会议记录转化为摘要、关键决定，以及带负责人和截止日期的真实待办事项清单。

1. 1Paste your meeting transcript.
2. 2Click Generate meeting notes.
3. 3Copy the summary, decisions and action items.

解锁你已知密码的PDF，并下载无密码保护的副本。

1. 1Choose a password-protected PDF.
2. 2Enter the password you already know.
3. 3Click Remove password & download.

从银行/信用卡对账单的照片或PDF中提取交易记录，生成可下载的.xlsx文件。

1. 1Upload a PDF or photo of your statement.
2. 2Click Extract transactions and review the table.
3. 3Download the .xlsx.

根据每日上下班打卡时间和休息时长计算总工时，并高亮显示加班时间。

1. 1Enter each day's clock-in, clock-out and break.
2. 2Set your overtime threshold.
3. 3Read the total in HH:MM and decimal format.

将JPG照片描摹为可缩放的SVG矢量路径。

1. 1Upload a JPG.
2. 2Pick a style preset and color count.
3. 3Vectorize & download the SVG.

按固定300 DPI将英寸或厘米换算为像素，适用于可打印上传要求。

1. 1Enter a size in inches or centimeters.
2. 2Read the pixel dimensions at 300 DPI.
3. 3DPI is locked to 300.

按固定200 DPI将英寸或厘米换算为像素，适用于扫描和上传要求。

1. 1Enter a size in inches or centimeters.
2. 2Read the pixel dimensions at 200 DPI.
3. 3DPI is locked to 200.

检测HTTP是否正确重定向到HTTPS，并扫描页面中的混合内容资源。

1. 1Type a domain or URL.
2. 2Click Check.
3. 3Review the redirect status and any mixed content found.

通过添加不可见、可选中的OCR文本层，使扫描版PDF可被搜索。

1. 1Choose a scanned/image-only PDF and pick its language.
2. 2Click Add OCR text layer & download.
3. 3The download is verified to be searchable and looks identical to the original.

在线查看PDF：连续滚动浏览、缩放、搜索文字，并可直接在页面上选择或复制文字。

1. 1Choose a PDF to open it in the viewer.
2. 2Use the page controls and zoom buttons to read it.
3. 3Search for text and click a result to jump to that page.

检查PDF中的空白页、重复页、旋转问题，以及AI标记的可能不一致之处。

1. 1Choose a PDF.
2. 2Review the checklist of computed checks.
3. 3Review the AI-assisted pass for possible inconsistencies worth double-checking.

用AI提取PDF中提到的所有日期或截止日期，并下载.ics日历文件。

1. 1Choose a PDF.
2. 2Review each date found, with its context.
3. 3Download the .ics calendar file for the dates it could resolve.

上传PDF或粘贴文本，标记出姓名、日期、金额或地址中可能存在的不一致之处以供复核。

1. 1Upload a PDF or paste text.
2. 2Let the AI-assisted pass scan it.
3. 3Review each possible inconsistency and its location.

用AI将活动邀请或预订的截图转换为可下载的.ics日历文件。

1. 1Upload a screenshot of an event invite, confirmation or booking.
2. 2Review and correct the extracted title, date, time and location.
3. 3Download the .ics calendar file.

在PDF中找到每一处可能的签名栏或"请在此签名"的位置，并标明页码。

1. 1Choose a PDF.
2. 2Review the likely signature fields found, by page.
3. 3Jump straight to the pages that need a signature.

获取AI建议的长尾关键词变体，以可复制的标签形式按意图分组——仅供头脑风暴，不提供真实搜索数据。

1. 1Enter a seed topic or keyword.
2. 2Click Generate keyword ideas.
3. 3Copy the variations, then verify real demand in an actual keyword tool.

在页面预览上拖动矩形来裁剪PDF——可对每页应用相同裁剪，也可为每页单独设置。

1. 1Choose a PDF.
2. 2Drag a rectangle on the page preview to set the crop.
3. 3Click Crop PDF & download.

将PDF压缩至3MB以下，这是一个较宽松的目标，能保留更多图像质量。

1. 1Choose a PDF.
2. 2Click Compress to 3 MB.
3. 3Download the result.

将PDF压缩至5MB以下，这是电子邮件附件和申请门户的常见限制。

1. 1Choose a PDF.
2. 2Click Compress to 5 MB.
3. 3Download the result.

将PDF压缩至750KB以下，介于500KB和1MB之间的折中目标。

1. 1Choose a PDF.
2. 2Click Compress to 750 KB.
3. 3Download the result.

查找并下载隐藏在PDF内部的嵌入文件。

1. 1Choose a PDF.
2. 2Review any embedded files found.
3. 3Download each one individually.

将已填写的PDF表单的值变为永久且不可编辑的内容。

1. 1Choose a PDF with a filled-in fillable form.
2. 2Click Flatten form & download.
3. 3The values become permanent, non-editable page content.

在送印之前检查PDF的字体嵌入、图像分辨率和色彩空间。

1. 1Choose a PDF.
2. 2Review the per-page font, resolution and color-space findings.
3. 3Fix anything flagged before sending it to a print shop.

打开 Factur-X、ZUGFeRD、XRechnung 或 UBL 电子发票，像普通发票一样阅读并可直接打印。

1. 1Drop in your Factur-X / ZUGFeRD PDF, or the e-invoice XML file itself.
2. 2Read the decoded invoice - seller, buyer, line items, VAT breakdown and amount due.
3. 3Download it as a clean PDF, print it, or save the underlying XML.

打开 .p7m 文件，取出其中原始的已签名文档，并查看签署人是谁。

1. 1Drop in your .p7m file (fattura.xml.p7m, documento.pdf.p7m, and so on).
2. 2Check the signer's name, organisation, certificate authority and validity dates.
3. 3Download the original document, with its correct file extension restored.

检查 PDF 是否具备屏幕阅读器所需的标签、文档语言、标题和图片替代文本。

1. 1Upload the PDF you want to check.
2. 2Read the pass/fail checklist - each result explains why it matters for screen-reader users.
3. 3See which images are missing alt text, and which pages they're on.

嵌入sRGB色彩配置文件和PDF/A意图元数据，作为尽力而为的存档近似方案——并非经过认证的PDF/A文件。

1. 1Choose a PDF.
2. 2Click Convert to PDF/A (best-effort) & download.
3. 3Verify with a dedicated validator if certified PDF/A is required.

修复无法打开的PDF：重建其结构以保留原始文本和格式，若损坏过于严重则将页面还原为图片。

1. 1Upload a PDF that's damaged or won't open properly.
2. 2It tries a full structural repair first, then rebuilds pages from images only if that's not possible.
3. 3Download the repaired PDF - it tells you which method was used and lists any pages that couldn't be recovered.

为PDF设置密码，没有密码将无法打开。

1. 1Choose a PDF to protect.
2. 2Enter and confirm a password.
3. 3Click Add password & download.

检查涂黑处理过的PDF中，黑色遮盖块下方是否仍藏有可选中的真实文本。

1. 1Choose a PDF that's already been redacted.
2. 2Let it scan every page for black boxes and any text underneath.
3. 3Review the leaked text found, by page, before sharing the file.

用AI以通俗易懂的语言说明表格中每个字段的意思——仅供参考，不构成法律或税务建议。

1. 1Upload a photo or PDF of the form.
2. 2Read the plain-English explanation of each field.
3. 3Check the list of documents you'll likely need.

用AI视觉识别，将名片照片或联系人截图转换为可下载的.vcf联系人名片。

1. 1Upload a business card photo or contact screenshot.
2. 2Review and correct the extracted details.
3. 3Download the .vcf contact card.

用AI批量提取多张小票的商家、日期、金额和类别，下载带分类小计的费用报表。

1. 1Upload up to 20 receipt photos or screenshots.
2. 2Review the extracted merchant, date, amount and category for each.
3. 3Download the .xlsx expense report with subtotals.

用AI为一整批图片同时生成替代文本、SEO文件名和标题，并合并为一份可下载的CSV文件。

1. 1Upload up to 20 images.
2. 2Review the generated alt text, filename and title for each.
3. 3Download the CSV.

提取PDF文本，用AI生成简短要点或详细段落摘要，长文档会被分段处理，而不是直接截断。

1. 1Choose a PDF.
2. 2Pick a short or detailed summary style.
3. 3Click Generate summary and review the result.

提取PDF的真实文本（非OCR），用AI翻译，并将结果下载为PDF或.docx文件。

1. 1Choose a PDF and pick a target language.
2. 2Click Translate.
3. 3Download the translated PDF or .docx.

扫描您的合同PDF，直接在页面上高亮标注风险条款——自动续约、责任上限、仲裁等——按风险等级用颜色区分，并提供可下载的标注版本。

1. 1Upload a contract PDF or paste its text.
2. 2Let the AI-assisted scan flag clause types worth reviewing, highlighted on the page by severity.
3. 3Read each explanation and excerpt, then download the highlighted copy or have a lawyer review anything consequential.

根据字体大小在长PDF中检测可能的标题，并添加一页可自定义的目录，列出每个标题及其页码。

1. 1Choose a PDF.
2. 2Review the detected heading candidates and uncheck any false positives.
3. 3Click Generate PDF with table of contents & download.

将.rtf文件转换为PDF，全部在浏览器中提取和转换。

1. 1Choose a .rtf file.
2. 2Review the extracted text.
3. 3Click Download PDF.

将OpenDocument Text（.odt）文件转换为PDF，全部在浏览器中完成。

1. 1Choose a .odt file.
2. 2Review the extracted text.
3. 3Click Download PDF.

按照书籍真实的阅读顺序，将.epub电子书的各章节合并为一个可下载的PDF文件。

1. 1Choose a .epub file.
2. 2Review the extracted chapters.
3. 3Click Download PDF.

添加照片、扫描件和PDF的组合，为签证、求职、报税或保险生成一份整洁、有序、可搜索的PDF文件包。

1. 1Add your files and pick a purpose (visa, job, tax, insurance, proposal, archive).
2. 2Review page cleanup, blank-page removal and any suggested redactions.
3. 3Download one combined, searchable, compressed PDF packet.

从零重建PDF，清除修订历史、隐藏图层和残留元数据，而不仅仅是清空几个字段。

1. 1Choose a PDF.
2. 2It's extracted and rebuilt completely from scratch.
3. 3Download the fully cleaned PDF.

通过检测可能的字段和复选框，将平面扫描表格转换为真正可填写的PDF。

1. 1Upload a scanned form.
2. 2Review and adjust the detected field boxes.
3. 3Download the real, fillable PDF.

查看PDF的创建/修改日期、生成软件、保存次数以及是否嵌入了JavaScript。

1. 1Choose a PDF.
2. 2Review the factual metadata and structure findings.
3. 3Decide what to do based on what's found.

上传2份或以上相关文档，标记出它们之间不一致的姓名、日期、金额或地址，以供复核。

1. 1Upload 2 or more related PDFs, or paste each document's text.
2. 2Let the AI-assisted pass compare them against each other.
3. 3Review each possible inconsistency and which documents it was found in.

移除PDF中可见的批注、高亮和其他标记注释，并提供可下载的移除内容摘要。

1. 1Upload a PDF that has visible comments or annotations.
2. 2Click to remove them - a clean PDF downloads automatically.
3. 3Download the summary list of what was removed, if you want a record.

按顺序上传3个或以上的文档版本，使用与"比较PDF"相同的引擎查看每一步的变化。

1. 1Add 3 or more versions of the same document.
2. 2Arrange them oldest to newest with the up/down arrows.
3. 3Review the step-by-step timeline of what changed at each version.

上传任意表格的照片或截图，提取其行列为可下载的.xlsx或.csv文件——能识别时优先读取表格的真实网格线，AI作为备用方案。

1. 1Upload a photo or screenshot containing a table.
2. 2Click Extract table and review the editable result.
3. 3Download it as .xlsx or .csv.

上传包含联系人的CSV或Excel文件，映射各列字段，生成一个合并的.vcf文件下载。

1. 1Upload a .csv or .xlsx file of contacts with a header row.
2. 2Map each contact field to the matching column.
3. 3Generate & download the combined .vcf file.

将一段音频转换为带有与声音同步的动态波形视频（音频图）。

1. 1Upload an audio clip.
2. 2Pick a waveform style, video shape and colors.
3. 3Generate and download the MP4.

上传视频及.srt或.vtt字幕文件，将字幕永久烧录进视频画面，导出为MP4。

1. 1Upload a video and a matching .srt or .vtt subtitle file.
2. 2Choose the clip range and caption size.
3. 3Burn in the captions and download the MP4.

计算两种颜色之间精确的WCAG对比度，给出AA和AAA级别、普通和大号文字的通过/未通过结果。

1. 1Enter a foreground and background color.
2. 2Review the live preview and contrast ratio.
3. 3Check the pass/fail results for AA and AAA, normal and large text.

检测域名的SPF、DKIM和DMARC邮件认证记录，并用通俗语言解释结果。

1. 1Enter a domain, and a DKIM selector if you know it.
2. 2Click Check.
3. 3Review each record's plain-English explanation.

对照Spamhaus、Barracuda、SpamCop、CBL和PSBL等DNSBL黑名单检测IP地址或域名。

1. 1Enter an IP address or domain.
2. 2Click Check.
3. 3See which, if any, blacklists show it as listed.

验证robots.txt语法，并测试特定URL路径对指定User-Agent是允许还是禁止。

1. 1Paste robots.txt content or fetch it from a URL.
2. 2Review any syntax issues found.
3. 3Test a URL path and user-agent to see if it's allowed or blocked.

验证sitemap.xml文件的结构、必需标签、协议限制以及重复的URL。

1. 1Paste sitemap.xml content or fetch it from a URL.
2. 2Review flagged issues like malformed URLs or missing tags.
3. 3Check the parsed list of URLs or child sitemaps.

上传简历，检查其字数长度、标准板块以及可能影响ATS解析的排版风险，并提供AI辅助的措辞薄弱环节分析。

1. 1Upload a resume as a PDF, Word .docx, or image.
2. 2Review the length, section and ATS-parsing-risk checklist.
3. 3Review the AI-assisted pass for weak or generic phrasing to strengthen.

上传一批PDF文件，对每个文件同时运行签名检测、涂黑泄露、取证元数据、截止日期和不一致性检查，并导出为格式化的PDF报告。

1. 1Upload up to 10 PDFs - a contract packet, submission bundle or due-diligence set.
2. 2Let it run all five existing checks (signatures, redaction leaks, forensic metadata, deadlines and inconsistencies) against every file.
3. 3Review the one consolidated table, then download a formatted PDF report or the CSV summary.

将顺序混乱的短信、私信或邮件截图整理成一份按时间顺序排列、带页码的PDF，全部在您的浏览器中完成。

1. 1Add a batch of screenshots - texts, DMs, or emails - in any order.
2. 2Let it detect each timestamp, then drag to fix anything it missed.
3. 3Download one chronological, page-numbered PDF.

一次性检测整个文件夹或压缩包（.zip）中的照片是否包含GPS定位信息和C2PA内容凭证，并下载一份CSV报告。

1. 1Upload a folder's worth of images, or a single .zip of them (up to 30).
2. 2Review the GPS, C2PA manifest and EXIF software findings for each image.
3. 3Download the CSV report for your review workflow.

在发布前批量检查照片是否泄露你的位置信息或带有AI编辑痕迹，然后一键清理并下载。

1. 1Upload the photos you're about to post, or a .zip of them (up to 30).
2. 2Read the plain-language flags for each photo - location revealed, possible AI editing, or safe to post.
3. 3Strip a flagged photo's hidden data with one click, or download the whole cleaned batch as a .zip.

为盲选招聘批量涂黑简历中每位候选人的姓名、照片、地址和毕业年份，可单独下载每份PDF，也可打包成一个.zip下载 - 100%本地处理。

1. 1Upload up to 20 candidate resumes (PDF and/or Word), mixed is fine.
2. 2Click Redact resumes and review each file's redaction checklist.
3. 3Download each PDF individually, or all of them as one .zip.

上传您的医疗保险福利说明（EOB）——支持任何保险公司，PDF或照片皆可——通过免费AI获取您需支付金额的简明易懂摘要。

1. 1Upload a PDF or photo of your Explanation of Benefits (EOB).
2. 2Click Decode EOB and review each claim line.
3. 3See the plain-language total for what you owe.

上传您的房产税评估通知书，添加三到五笔可比销售记录，即可获得正式申诉信和可直接提交的PDF材料包——完全免费，每个数字均由计算得出，而非AI撰写。

1. 1Upload a PDF or photo of your property tax assessment notice.
2. 2Add three to five comparable sales with their prices, dates and square footage.
3. 3Review the comparison, then download the filing-ready PDF appeal packet.

上传两到四份大学助学金方案，获得同口径对比——助学金、贷款与勤工俭学分别列出，真实净价与四年费用预测，免费AI生成。

1. 1Upload two to four college financial aid award letters.
2. 2Click Compare to see cost, grants, loans and work-study side by side.
3. 3Adjust the projection assumptions, then download the comparison as a CSV.

上传您的W-2、1099、T4和T5单据，自动识别并重命名，合并为一份带索引的PDF，并列出可能仍未收到的常见单据——免费AI驱动。

1. 1Upload your tax slips - W-2s, 1099s, T4s, T5s and the rest.
2. 2Check each identified slip type and read the missing-slip checklist.
3. 3Download the indexed merged PDF or the CSV summary.

上传孩子的IEP或504计划，专业术语逐一解释，每项目标都会检查是否真正可衡量，并生成下次会议可提出的问题——免费AI驱动。

1. 1Upload your child's IEP or Section 504 plan as a PDF or photo.
2. 2Read the glossary and the measurability check on each goal.
3. 3Copy the meeting questions built from the gaps found in your plan.

将单独录制的音频文件与视频同步，同时修正固定偏移和逐渐累积的时钟漂移。

1. 1Upload your video and the separately-recorded audio file.
2. 2Let it detect drift and offset between them.
3. 3Download the video with the corrected audio synced in.

将Excel公式转换为Google Sheets语法或Python/pandas等效代码，由真正的公式解析器完成，而非AI猜测。

1. 1Paste an Excel formula, with or without the leading equals sign.
2. 2Pick Google Sheets or Python (pandas) as the translation target.
3. 3Copy the translated formula - anything unsupported is flagged instead of guessed.

使用免费AI模型根据文字描述生成图片，可设置宽高比、风格和随机种子（seed）。

1. 1Describe the image you want, or click an example prompt.
2. 2Pick an aspect ratio and style, and optionally set a seed or negative prompt.
3. 3Click Generate image, then download it or generate a variation with a new seed.

粘贴你的 Instagram 或 Facebook 文案，获得匹配的 AI 配图及其提示词 - 支持方形、竖版和快拍尺寸。

1. 1Paste the post caption you've already written.
2. 2Pick a vibe and a format - square, portrait or Story.
3. 3Generate, then download, regenerate, or add text on the image.

将文章标题和摘要变成免费 AI 特色图片 - 16:9 博客头图或精确 1200x630 的 Open Graph 卡片。

1. 1Enter your article title and a short summary or excerpt.
2. 2Pick the niche that matches your topic.
3. 3Choose 16:9 or 1200x630 OG size, generate, and download.

为日语文本中的汉字标注假名读音，采用真正的形态分析器——花火读作はなび而非はなひ——并可导出为带真实ruby注音的Word文档。

1. 1Paste your Japanese text and click Add furigana (the dictionary downloads once, then it's live).
2. 2Pick hiragana or katakana readings, and set the school-grade filter to your reading level.
3. 3Download as Word with real ruby, as PDF, as HTML, or copy it as 漢字（かんじ）.

在日本年号（令和、平成、昭和、大正、明治）与公历之间互转，每次改元都精确到日，支持单个日期或整列批量转换。

1. 1Pick a Gregorian date on the left, or type an era, year, month and day on the right.
2. 2Both sides update live, and the results table shows every format a Japanese form asks for.
3. 3For a spreadsheet column, switch to bulk mode, paste any mix of formats and export the CSV.

将日语文本按传统竖排、从右至左排入真正的原稿用纸格子并导出PDF——400字标准稿纸、禁则处理换行，文字可选可搜索。

1. 1Paste your Japanese text - wrap a run in 《《…》》 for 圏点 emphasis dots.
2. 2Choose the paper size and sheet preset (20 × 20 is the standard 400-character sheet).
3. 3Check the live page and 枚 count, then click Download PDF.

用官方公布的校验位核对韩国사업자등록번호、日本法人番号或发票T号——完全离线、无需API密钥，可一次校验数千条。

1. 1Paste a number - 10 digits, 13 digits or T + 13 digits is detected automatically.
2. 2See whether the check digit passes, what the algorithm expected, and what the number encodes.
3. 3For a supplier list, switch to bulk mode, paste one per line and export the CSV.

用真正的CIELAB色彩空间k-means聚类从任意照片提取配色，再调节北欧低饱和风格强度——可导出CSS变量、Tailwind、JSON和.ase色板。

1. 1Drop in a photo - interiors, landscapes and textiles work best.
2. 2Choose how many swatches you want and drag the Scandi-fy slider (0% shows the raw colours).
3. 3Click a swatch to copy its hex, or export as CSS variables, a Tailwind @theme block, JSON or .ase.