Free JWT decoder, encoder, verifier, debugger, and more. All tools run in your browser — your tokens and keys are never sent to our servers.
The JWT hub brings together decode, encode, verify, and inspection tools for JSON Web Tokens. Use it when you are integrating OAuth/OIDC, debugging API auth, validating signatures against JWKS, or teaching how JWTs are structured. Browser-first tools keep tokens and signing keys on your device; always avoid pasting production secrets into shared or AI-backed flows.
Typical workflows: decode a token from a failing request to read exp and iss; verify RS256 with a public key from your IdP; compare header alg with what your API expects; generate test tokens for staging with the encoder.
Related areas: explore the JSON hub for payload formatting, and the Security hub for broader auth checks.
Decode reads header and payload (Base64URL) so you can inspect claims. Verify additionally checks the signature with your secret or public key — use verify when you must trust the token.
Standard JWTs are signed, not encrypted. Anyone with the token can read the payload unless you use JWE (encrypted JWT). Do not put secrets in the payload.
Start with decode to inspect claims, then verify if you need signature validation. Use the debugger when matching behavior step-by-step.
Once the app is loaded, core JWT operations run in your browser without sending tokens to our servers.
OIDC often uses JWTs for ID tokens and access tokens. Use decode/verify here, then use OIDC or OAuth flows in your Identity hub tools for protocol-level debugging.