JWT Decoder
Decode header and payload claims, then review exp, nbf, aud, iss, and alg signals.
Do not paste production bearer tokens or session tokens.
Open toolWorkflow authority
Token Inspection Workflow for JWTs, Base64, Timestamps, and Hashes
Inspect token-like strings safely by separating decoding, timestamp reading, digest comparison, and verification boundaries.
Outcome: Understand what a token appears to contain while remembering that decoding is not verification.
Base64 Encoder / Decoder
Inspect Base64 or Base64URL fragments as representation, not secrecy.
Base64 is not encryption and can expose secrets.
Open toolTimestamp Converter
Convert exp, iat, or nbf values to readable UTC/local dates.
Use server verification for authentication decisions.
Open toolHash Generator
Compare public checksum examples or documentation digests.
Plain SHA hashes are not password storage.
Open toolWorkflow checklist
Keep the workflow safe and repeatable.
- Use a development or dummy token
- Separate decode from verify
- Check time claims
- Review issuer/audience expectations
- Verify signature server-side
Related guides