YG Encoder/Decoder

Encode/decode URLs, HTML, Base64, JSON, JWT & generate hashes (SHA-256, MD5). Dark mode, history, right-click menu.

YG Encoder/Decoder is a privacy-first, all-in-one Chrome extension for developers. Encode/decode Base64, URL, HTML, JWT, JSON — plus MD5, SHA-1, SHA-256, SHA-512 hashes. 100% in your browser. No server. No tracking. 42 KB. WHY USE IT • 100% offline — JWT tokens, hashes, URL params never leave your browser • 6 tools in one — replaces 5 single-purpose extensions • 42 KB total — smallest in its category (vs 545 KB for some JWT-only tools) • Right-click any selection on any page → encode/decode in place • History of last 50 operations, instantly recallable • Dark mode that actually looks good WHAT IT DOES • Base64 — encoder/decoder for API responses, image embeds, data URIs • URL — encoder/decoder for query strings and redirect params • HTML entity — encoder/decoder to prevent XSS during debugging • JSON — prettifier + minifier with one click • JWT — decoder showing header, payload, expiry, signature • Hash — generator: MD5, SHA-1, SHA-256, SHA-512 FOR DEVELOPERS • Debugging auth flows? Decode JWTs without leaking session data to jwt.io. • Inspecting API responses? Pretty-print JSON or decode Base64 in one keystroke. • Verifying file integrity? Generate any hash locally. PRIVACY & PERMISSIONS • No login, no signup, no account. • No external API calls. All cryptography uses Web Crypto API. • Permissions: clipboardWrite (Copy button), activeTab + scripting + contextMenus (right-click menu). Nothing more. FAQ Q: How do I decode a JWT in Chrome without a third-party site? A: Right-click any JWT on a webpage and select "Decode JWT". Q: Does this work offline? A: Yes. No internet required after install. Q: Is the source open? A: Yes — github.com/yourname/yg-encoder-decoder Free forever. Built by Yash Gupta.