Base64ly

Instant Base64 encode/decode with zero friction. Auto-detects and converts clipboard content.

Base64ly — the fastest way to encode and decode Base64. Stop pasting into random websites. Base64ly lives in your browser toolbar and does the job in zero clicks. HOW IT WORKS 1. Copy a Base64 string 2. Click the extension icon 3. Done — it's already decoded and copied to your clipboard That's it. No tabs, no websites, no extra steps. FEATURES • Auto-detect & decode — Opens with your clipboard already decoded if it's valid Base64 • Auto-copy — Every conversion copies the result to your clipboard instantly • Encode & Decode — Two clear buttons, each color-coded for fast recognition • Swap — Flip both fields with one click • UTF-8 safe — Handles unicode, emojis, and multilingual text correctly • Keyboard shortcuts — Cmd/Ctrl+Enter to convert, Cmd/Ctrl+Shift+S to swap • Copy & Clear — Explicit actions on each field for full manual control • Offline — Works entirely in your browser. No data leaves your machine. Ever. BUILT FOR DEVELOPERS Whether you're debugging JWTs, reading API payloads, or checking encoded config values — Base64ly removes the friction so you can stay in flow. PRIVACY Base64ly requires clipboard permissions solely to read and write during conversion. No data is collected, stored, or transmitted. Zero network requests. Fully offline.