Decode a JWT, hash a message or a file, make unique ids and check a checksum. Secrets are handled only in your browser: nothing you type is sent anywhere, and nothing is stored.
- JWT DecoderRead the header, payload and expiry of a JSON Web Token.
- UUID & ULIDGenerate UUID v4, v7 and ULID, and read the time inside any ID.
- Hash & HMACMD5, SHA-1, SHA-256, SHA-384, SHA-512 and HMAC for text and files.
- Password GeneratorRandom passwords, hex and base64url secrets, with entropy shown.