Base64 Encoder Decoder
Encode plain text to Base64 or decode Base64 back to text.
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Encode and decode Base64 in your browser
Base64 Encoder Decoder converts plain text, JSON snippets, URL values, and Unicode strings to Base64 or back to readable text. Use it to inspect API payload fragments, token snippets, data URLs, configuration values, and encoded developer strings.
Useful For
- Encode text or JSON values to Base64
- Decode Base64 tokens or URL values back to text
- Check Unicode and emoji conversion behavior
Good To Know
Custom text and Base64 values are not included in shared links. Example links store only the selected sample name and mode.
Developer Check
Generated code, regexes, meta tags, and config snippets should be treated as drafts and tested again in your runtime, security policy, and deployment environment.
How It Works
Inputs are calculated or converted in the browser whenever possible. Compare important results with the original source before using them. Reviewed on Jul 2, 2026.
Base64 conversion checks
Input type
- Separate text, image data, token fragments, and other inputs
- Confirm whether UTF-8 encoding is expected
Decode
- Check missing padding characters such as =
- Distinguish URL-safe Base64 from standard Base64
Security
- Remember Base64 is encoding, not encryption
- Remove secrets, tokens, and personal data before sharing output
Yes. Convert plain text into Base64 or decode Base64 strings back into readable text.
It uses UTF-8 handling so Unicode text such as Korean, Japanese, accents, and emoji can be processed.
No. Base64 is encoding, not encryption. Anyone can decode it, so use encryption for secrets.