Developer Tools
JWT Decoder
Decode and analyze JWT tokens
JWT Token Processing
JWT Token
Secret Key (Optional - for signature verification)
Decoded JWT
How to Use JWT Decoder
1.
Paste JWT Token
Paste your JWT token in the input field above
2.
Add Secret (Optional)
Enter secret key to verify the token signature
3.
View Results
View decoded header, payload, and signature verification
JWT Decoder Features
Complete Decoding
Decode header, payload, and signature components
Real-time Processing
Instant decoding as you type or paste tokens
Signature Verification
Verify token signatures with HMAC algorithms
Frequently Asked Questions
Q: What is a JWT token?
A: JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. It consists of three parts: header, payload, and signature.
Q: Is it safe to decode JWTs here?
A: Yes! All JWT decoding happens locally in your browser. Your tokens never leave your device, ensuring complete privacy and security.
Q: Why do I need a secret key?
A: The secret key is only needed if you want to verify the token's signature. Without it, you can still decode and view the header and payload.
- JWT Decoder
Decode and analyze JWT tokens
- JWT Generator
Generate JWT tokens with custom claims and headers
- cURL Builder
Build cURL commands with custom headers, methods, and options
- Bcrypt Hash Generator
Hash passwords using bcrypt with configurable cost factor
- Regex Tester
Test regular expressions with live highlighting and match details
- Time Converter
Convert between UTC, local time, and Unix timestamp
- String Escaper / Unescaper
Escape or unescape special characters for JSON/JS strings
- Data Formatter
Format and validate JSON, XML, YAML, and SQL with syntax highlighting
- Base64 Encoder
Encode text to Base64 format
- Base64 Decoder
Decode Base64 text to original format
- Image to Base64
Convert images to Base64 data URLs
- Base64 to Image
Convert Base64 data to images with preview and download
- ASCII Converter
Convert text to ASCII codes and vice versa
- Gradient Picker
Pick solid colors or gradients and copy the CSS value
- Color Palette
Interactive color picker with multiple format output
- Image Color Picker
Extract colors from images with pixel-perfect precision
- Favicon Generator
Generate multiple favicon sizes from text, emojis, or images
- Cron Expression Explainer
Parse and explain cron expressions in human-readable format
- JSON Viewer
View and explore JSON data in a tree structure
- UUID Generator
Generate unique identifiers easily.
- Hash Generator
Generate various hashes for your input.
- Bulk File Renamer
Rename multiple files using patterns and download a ZIP
JWT Decoder
Decode and analyze JWT tokens
JWT Token Processing
JWT Token
Secret Key (Optional - for signature verification)
Decoded JWT
How to Use JWT Decoder
1.
Paste JWT Token
Paste your JWT token in the input field above
2.
Add Secret (Optional)
Enter secret key to verify the token signature
3.
View Results
View decoded header, payload, and signature verification
JWT Decoder Features
Complete Decoding
Decode header, payload, and signature components
Real-time Processing
Instant decoding as you type or paste tokens
Signature Verification
Verify token signatures with HMAC algorithms
Frequently Asked Questions
Q: What is a JWT token?
A: JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. It consists of three parts: header, payload, and signature.
Q: Is it safe to decode JWTs here?
A: Yes! All JWT decoding happens locally in your browser. Your tokens never leave your device, ensuring complete privacy and security.
Q: Why do I need a secret key?
A: The secret key is only needed if you want to verify the token's signature. Without it, you can still decode and view the header and payload.