Privacy Policy

Your privacy is our top priority. JWT Toolkit is designed with privacy-first principles to ensure your sensitive data remains completely secure and private.

How It Works

When you paste a JWT token into any of our tools, the processing happens entirely within your web browser using JavaScript and the Web Crypto API. The token never leaves your device, is never transmitted over the network and is never stored on any server.

We do not use cookies for tracking, do not collect analytics on your input and do not store logs of your activity.

• Local Processing — all JWT operations are performed in your browser
• No Server Uploads — tokens are never sent to our servers or third parties
• No Registration — no email, password or personal information required
• No Data Storage — tokens and secrets are never stored, logged or retained
• Browser-only Execution — cryptography uses the built-in Web Crypto API

Security Recommendations

• Always use HTTPS when accessing JWT Toolkit
• Avoid using production tokens on shared or public computers
• Clear your browser data after processing sensitive tokens on shared devices
• Use strong, unique secrets for JWT signature verification

JWT Tools

• JWT DecoderDecode JWT tokens to view header and payload
• JWT InspectorComprehensive analysis of JWT token structure and claims
• JWT Expiry CheckerCheck if JWT token is expired and view time remaining
• JWT Signature VerifierVerify JWT signature with secret or public key
• JWT Claims ViewerView all JWT claims in a tree-style format
• JWT Header ViewerDisplay JWT header information only
• JWT Payload FormatterPretty print JWT payload with proper indentation
• JWT Timestamp ConverterConvert JWT timestamps to readable dates
• JWT Lifetime CalculatorCalculate JWT token lifetime duration
• JWT Audience ValidatorValidate JWT audience claim against expected value
• JWT Secret Strength CheckerAnalyze JWT secret strength and security
• Base64URL DecoderDecode Base64URL encoded strings