Base64 encode and decode, text or files
Text and file modes, both directions.
No uploads. No accounts. Runs in your browser.
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About this tool
Encode text or any file to Base64, or decode a Base64 string back, as text on screen, or as a downloadable binary file when the content isn't text. UTF-8 and URL-safe variants with missing padding are handled automatically.
Useful for data URIs, basic-auth headers, API payloads and config values. Everything runs on your device, so credentials you encode here stay yours.
How it works
- Paste your input, or drop a text file onto the box.
- The output updates live as you type.
- Copy it to the clipboard, or download it as a file.