JWT Generator
Create fully signed JSON Web Tokens with a custom header and payload. Choose from HMAC-SHA256, HMAC-SHA384, or HMAC-SHA512 signing algorithms. Signing happens client-side using the Web Crypto API — your secret never leaves your browser.
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Common Use Cases
- Generate test tokens for API development
- Create tokens for local auth testing
- Understand JWT structure by building one
- Verify JWT signing implementations
Frequently Asked Questions
Is it safe to generate JWTs in the browser?
For development and testing purposes, yes. The secret never leaves your browser — signing uses the Web Crypto API locally. Never use test secrets in production tokens.
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Tool Info
CategorysecurityAI EnhancementNoData StorageZero retention