Base64 Decoder
Decode Base64 text back to plain text.
Result
Häufig gestellte Fragen
What happens if I paste text that isn't valid Base64?
You'll get an error instead of garbled output. Base64 has a strict character set and padding rules, so text that doesn't follow them, like regular sentences or URLs, won't decode.
Can I decode Base64 back into an image or other binary file?
This tool decodes to plain text only. If the original data was binary (an image, a PDF, and so on), you'll get unreadable characters rather than a usable file.
Is my data sent anywhere?
No, this runs entirely in your browser using the browser's built-in Base64 decoding APIs. Nothing is sent to a server.