JWT Decoder
About This Tool
JSON Web Tokens (JWT) are the standard for stateless authentication. However, they are just base64-encoded strings that are difficult to read. The JWT Decoder parses the token into its three parts: Header, Payload, and Signature. It decodes the Base64Url payload to show you the Claims (user ID, expiration, roles) hidden inside. This is invaluable for debugging login issues or verifying token contents. This tool is essential for modern developers who work with multiple data formats, APIs, and code structures daily. It eliminates the tedious manual work of formatting, converting, and validating code, allowing you to focus on actual development. The tool follows industry standards and best practices, ensuring your output is compatible with all major platforms and frameworks. Whether you're debugging, preparing API requests, or cleaning up data, this utility handles the heavy lifting. It's perfect for full-stack developers, DevOps engineers, data scientists, and anyone working with code and structured data regularly. Our algorithms are optimized for performance, ensuring instant results even for complex calculations. We are committed to providing free, high-quality tools to help you be more productive. Our platform is dedicated to simplifying your digital life with an extensive collection of utilities that are always available at your fingertips, completely free of charge and without any registration requirements. We believe in open access to technology for everyone.
How to Use This Tool
Paste Token
Paste your 'ey...' JWT string.
Auto-Decode
The tool instantly reveals the content.
Inspect
Check User ID, Role, and Expiration time.
Key Features
- Parses Header & Payload: Reveals algorithm and data claims.
- Date Formatting: Converts 'exp' and 'iat' timestamps into human-readable dates.
- Color Coded: Visually separates the token parts.
- Security: Decodes solely in the browser; never sends tokens to a server.
Common Use Cases
Why This Tool Matters
You can't fix auth issues if you can't see the token data. This tool grants visibility into your authentication mechanism.
Frequently Asked Questions
Does it verify the signature?
No, verifying requires your private Application Secret. We only decode the readable Payload data.
Is it safe?
Yes, extremely. Since it runs locally, your sensitive production tokens are never exposed to the internet.
JWT Decoder
Decode and inspect JSON Web Tokens (header & payload).
About This Tool
JSON Web Tokens (JWT) are the standard for stateless authentication. However, they are just base64-encoded strings that are difficult to read. The JWT Decoder parses the token into its three parts: Header, Payload, and Signature. It decodes the Base64Url payload to show you the Claims (user ID, expiration, roles) hidden inside. This is invaluable for debugging login issues or verifying token contents. This tool is essential for modern developers who work with multiple data formats, APIs, and code structures daily. It eliminates the tedious manual work of formatting, converting, and validating code, allowing you to focus on actual development. The tool follows industry standards and best practices, ensuring your output is compatible with all major platforms and frameworks. Whether you're debugging, preparing API requests, or cleaning up data, this utility handles the heavy lifting. It's perfect for full-stack developers, DevOps engineers, data scientists, and anyone working with code and structured data regularly. Our algorithms are optimized for performance, ensuring instant results even for complex calculations. We are committed to providing free, high-quality tools to help you be more productive. Our platform is dedicated to simplifying your digital life with an extensive collection of utilities that are always available at your fingertips, completely free of charge and without any registration requirements. We believe in open access to technology for everyone.
How to Use This Tool
Paste Token
Paste your 'ey...' JWT string.
Auto-Decode
The tool instantly reveals the content.
Inspect
Check User ID, Role, and Expiration time.
Key Features
- Parses Header & Payload: Reveals algorithm and data claims.
- Date Formatting: Converts 'exp' and 'iat' timestamps into human-readable dates.
- Color Coded: Visually separates the token parts.
- Security: Decodes solely in the browser; never sends tokens to a server.
Common Use Cases
Why This Tool Matters
You can't fix auth issues if you can't see the token data. This tool grants visibility into your authentication mechanism.
Frequently Asked Questions
Does it verify the signature?
No, verifying requires your private Application Secret. We only decode the readable Payload data.
Is it safe?
Yes, extremely. Since it runs locally, your sensitive production tokens are never exposed to the internet.