Encoding tools
About Encoding tools
A free set of encoding and decoding tools — Base64 encode/decode, URL encoding, image-to-Base64, JWT decoding, and hash generation, all in your browser. Your data is processed on your device and never sent to a server.
They help investigate APIs and data transfers, inspect token contents, and verify hash values. Ideal for engineers and learners who want to try encoding tasks quickly while developing or debugging.
All Encoding tools
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.
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.
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.
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.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files, with HMAC and expected-digest comparison. Runs entirely in your browser.