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HS256 (HMAC-SHA256)
All ToolsGenerate JWT Token
Generate JWT Token
Generate HS256-signed JWT tokens from a JSON payload and secret key using the Web Crypto API.
What is Generate JWT Token?
Generate JWT Token is a free online tool that creates valid HS256-signed JSON Web Tokens. Enter your JSON payload and a secret key, and get a signed JWT token ready to use in your API.
How It Works
The tool constructs the standard JWT header {"alg":"HS256","typ":"JWT"}, Base64URL-encodes both header and payload, then signs the result using the HMAC-SHA256 algorithm via the Web Crypto API (SubtleCrypto). The three parts are joined with dots.
Key Benefits
- Generates standards-compliant HS256 JWT tokens
- Uses the browser's Web Crypto API for signing
- Color-coded token parts: header, payload, signature
- Pre-filled payload with common claims
- No data sent to any server
Frequently Asked Questions
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