JWT Decoder (JSON Web Token)

🔐 JWT Decoder Tool – Free Online JSON Web Token Decoder

The JWT Decoder Tool is a free browser-based utility by Free IT Tools Online to instantly decode JSON Web Tokens (JWTs). View header, payload, and signature without server-side code.

What is a JWT (JSON Web Token)?

A JWT is an open standard (RFC 7519) for securely transmitting information between parties as JSON. It is widely used for authentication, authorization, and secure data exchange.

• Header: Algorithm & token type
• Payload: Claims (user info, permissions, etc.)
• Signature: Ensures token integrity

JWT Decoder Tool Kya Hai? (Hindi)

JWT Decoder Tool ek free online utility hai jo JWT ka header, payload aur signature decode karke readable format me dikhata hai. Bas apna JWT paste karein aur instantly results dekhein.

How to Use the JWT Decoder Tool

1. Paste your JWT in the box below.
2. The tool automatically separates header, payload, and signature.
3. View the decoded JSON in a formatted structure.

Try JWT Decoder Tool Now

Paste JWT: Decoded Header:

{}

Decoded Payload:

{}

Key Features

• ✅ Instant decoding in browser
• 🔒 100% secure – no server calls
• 🧩 Readable formatted JSON
• 📋 Copy header or payload
• 🚀 Developer-friendly for debugging authentication

Who Can Use JWT Decoder?

• 👨‍💻 Developers
• 🛠️ Security researchers
• 📱 Mobile app developers
• 🌐 Web developers

Use Cases

• 🔍 Debug login sessions
• 📌 Verify JWT payload claims
• 🧠 Learn JWT structure
• 💼 Audit authentication and security

More Free Tools

• Base64 Encoder
• JSON Viewer & Formatter
• Robots.txt Generator
• Password Generator

Final Thoughts

The JWT Decoder Tool is essential for developers, testers, and learners working with JWTs. It’s simple, secure, and fully browser-based. Try it now on Free IT Tools Online.