Aarunya Dev Tools

JWT Decoder, JSON Beautifier, Base64, Color Picker, OG Preview — developer tools in one click

Aarunya Dev Tools puts 5 essential developer utilities in a single browser popup — no sign-up, no tracking, works offline. 🔐 JWT Decoder Paste any JWT and instantly see the decoded header and payload. Expiry is highlighted with a clear EXPIRED / VALID badge and timestamp. 📄 JSON Beautifier / Minifier Paste raw JSON to format it with proper indentation, or minify it for payloads. One-click copy. 🔤 Base64 Encode / Decode Encode any text to Base64 or decode a Base64 string back. Handles UTF-8 correctly. 🎨 Color Picker Pick or paste a hex color to get HEX, RGB, and HSL values with one-click copy. Includes WCAG AA contrast ratio check against white and black. 🌐 OG Preview Paste any URL to preview how it appears when shared — title, description, and Open Graph image, exactly as social platforms see it. All tools run locally in your browser. Zero data is sent anywhere except the OG Preview (which fetches metadata via a proxy).