Birdor Tools · Security
JWT Debugger & Decoder
Paste a JSON Web Token to decode its header and payload, view Base64URL details, and optionally verify HS256/HS384/HS512 signatures. Everything runs locally in your browser.
ModeDecode only · No verification
JWT token121 chars
Header
Payload
Signature
This tool only decodes the token. It does not verify the signature or check if the token is actually valid.