JWT Decoder/Encoder
Guide
Decoding JWT Tokens
Decode JWT tokens to view their header and payload components.
Decoding Steps
- Paste your JWT token in the input field
- Click the 'Decode JWT' button to process the token
- View the decoded header and payload in readable format
- Copy the decoded components for further analysis
Encoding JWT Tokens
Create JWT tokens by encoding header and payload with a secret.
Encoding Steps
- Fill in the header and payload JSON objects
- Select the algorithm and enter your secret
- Click 'Encode JWT' to generate the token
- Download the generated token for use in your applications
Features
Available Features
- Decode JWT tokens to view header and payload
- Encode header and payload into JWT tokens
- Support for multiple signing algorithms (HS256, HS384, HS512)
- Validation of JWT format and JSON structure
- One-click copy functionality for tokens and decoded components
- Download generated tokens as text files
Tips & Best Practices
Best Practices
- Verify the signature of JWT tokens before processing them
- Use strong, randomly generated secrets for production applications
- Choose the appropriate algorithm based on your security requirements
- Always set appropriate expiration times in your JWT payloads
- Validate JWT tokens on your server before trusting their contents
Note: This tool performs JWT encoding and decoding in your browser. No data is sent to our servers.
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