JWT Decoder, Base64 & URL Encode/Decode, JSON Formatter, Hash Generator

Decode JWT, Base64 & URL offline — 100% local processing. JSON format/minify, SHA-256/MD5 hashes, history, right-click menu.

Decode JWT tokens, Base64 and URLs without pasting them into a stranger's website. YG Encoder/Decoder runs every operation 100% locally in your browser — your tokens, API responses and query strings never leave your machine. WHY DEVELOPERS PICK IT • Privacy-first: inspect JWTs locally instead of uploading them to a website — your content is never sent anywhere • 6 tools in one — replaces a stack of single-purpose extensions • ~41 KB download — vanilla JavaScript, zero dependencies, instant popup • Right-click any selected text on any page to encode, decode or hash it • History of your last 50 operations, one click to reload • Dark mode and light mode WHAT'S INSIDE • JWT decoder — header, payload and signature in separate color-coded panels • Base64 encoder/decoder — full Unicode support, for API responses and data URIs • URL encode/decode — query strings, redirect params, special characters • HTML entity decoder — debug XSS-prone inputs safely • JSON formatter — prettify and minify with one click • Hash generator — MD5, SHA-1, SHA-256, SHA-512 via the browser's Web Crypto API BUILT FOR DAILY DEV WORK • Debugging auth flows? Inspect a token's claims locally. • Reading API responses? Pretty-print JSON or convert Base64 with one keystroke (Ctrl+Enter / Alt+Enter). • Verifying checksums? Generate MD5 or SHA-256 hashes offline. • On any webpage: select text → right-click → pick an operation → the result lands in your clipboard with an on-page confirmation. PRIVACY & PERMISSIONS • Your tokens, strings and JSON never leave the browser — all processing is 100% local • Anonymous usage statistics (which tools get used) — opt out anytime in the Support tab • No account, no signup, all tools work offline • Permissions: clipboardWrite (Copy button), activeTab + scripting + contextMenus (right-click menu), google-analytics.com (anonymous usage stats only) Free forever. Built by Yash Gupta. Questions or ideas: founderglance1@gmail.com