Decode JSON Web Tokens (JWT) instantly in your browser. This tool runs entirely locally with no network requests. You can save this file and open it to use completely offline. It also supports offline verification for HS256, HS384, and HS512 tokens using a shared secret.
Verification is supported for HS256, HS384, and HS512. RSA / ECDSA-based JWT algorithms are not verified in this version.