JWT Generator — Create Test Tokens Locally (No Upload)
Generate HMAC-signed JWT test tokens with sub, iss, aud, iat, and exp claims. Web Crypto signing in your browser — secrets never uploaded.
Frequently asked questions
No. Signing uses Web Crypto locally; secrets are not uploaded. Nothing is sent to LocalTools servers for processing.
No—use this for local API testing only. Production tokens should come from your identity provider with proper key management.
Related guides
- Generating test JWT tokens locallyHow to create HMAC-signed JWTs for API mocks with iat and exp claims — and why signing should stay in your browser or CI, not a random website.
- Reading a JWT without trusting the serverHow JWT structure, Base64URL encoding, and signatures work — and why decoding locally beats pasting tokens into random websites.