The JWT Debugger is a free, browser-based tool for decoding, verifying, and inspecting JSON Web Tokens. Paste in a token to instantly view the decoded header, payload, and signature. Everything runs client-side, so your tokens never leave your browser.
You can verify signatures to confirm a token hasn't been tampered with, check expiration and other time-based claims, and generate new JWTs by providing header, payload, and signature details. No WorkOS account required.
