Free Encode / Decode tools
About Encode / Decode tools
Free tools for encoding and decoding data — Base64, image⇄Base64, URL encoding, and JWT decoding. All run in your browser with no signup, useful for API work and debugging.
Tools tagged Encode / Decode
Base64 Encode / Decode
Encode text to Base64 and decode it back, with URL-safe Base64, 76-char MIME line wrapping, and real-time results. Runs entirely in your browser.
- Encode / Decode
- Development
Image ⇄ Base64 Converter
Convert images to Base64 (data URL) and back, with ready-to-paste CSS, HTML, and Markdown snippets generated automatically. Runs entirely in your browser.
- Converter
- Encode / Decode
- Development
URL Encode / Decode
Percent-encode text for URLs and decode it back, with query-component and full-URL scopes so links never break. Runs entirely in your browser.
- Encode / Decode
- Development
JWT Decoder
Decode a JWT into header, payload, and signature, with iat/exp/nbf shown as readable times and HS256/384/512 verification. Runs entirely in your browser.
- Encode / Decode
- Security
- Development