Developer Tools
Format, decode, convert and inspect the things you work with every day.
The tools here cover the small, constant jobs that sit between you and the thing you were actually doing: making a minified API response readable, checking what is inside a token, turning a timestamp into a date you can reason about.
Each one runs entirely in your browser, which matters more here than in most categories — the payloads you paste into a formatter or a JWT decoder are exactly the kind of thing that should not be uploaded to someone else's server.
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All developer tools
JSON & data
Encoding & hashing
JWT DecoderDecode a JSON Web Token and inspect its header, payload and expiry.Base64 Encoder / DecoderEncode text to Base64 or decode it back, with full Unicode support.Hash GeneratorGenerate MD5, SHA-1, SHA-256 and SHA-512 hashes from text or a file.PopularURL Encoder / DecoderPercent-encode or decode text and full URLs for safe use in links and queries.