JWT Decoder
Decode JWT tokens to view header and payload
Instructions
JWT Decoder Instructions\n\n## Introduction\nDecode JWT tokens to view the Header and Payload, useful for debugging and inspecting authentication data.\n\n## How to Use\n1. Paste a JWT token (format: xxx.yyy.zzz)\n2. The Header and Payload are decoded and shown automatically\n3. Review key info like the expiry time\n\n## Notes\n- This tool only decodes and displays; it does not verify signatures\n- Tokens are parsed locally in your browser; nothing is uploaded
❓ FAQ
Is my token uploaded?
No, tokens are parsed locally in your browser for security.
Does it verify signatures?
No, it only decodes and displays the Header and Payload.
Is this tool free?
Yes, it is completely free and requires no registration.
🔗 Related Tools
📝 Related Articles
How to Use a Favicon Generator: Complete Steps from Image to Website Icon
Use a favicon generator to turn a square image into a website icon that displays correctly in browser tabs and on mobile home screens. From preparing assets to deployment troubleshooting, this covers it all in one go—just follow along to get it done.
tool-tutorialsHow to Use a Cron Expression Generator: Complete Beginner Steps
Use an online tool to select the five time fields, automatically generate a standard Cron expression with a human-readable time explanation, and learn to troubleshoot execution time deviations caused by time zones and field counts, so complex schedules no longer rely on guesswork.
tool-tutorialsHow to Use an Online CSV to JSON Tool: Beginners Can Get Started in Three Steps
Use a three-step process to complete an online CSV to JSON tool operation, covering option settings, result validation, error troubleshooting, large file handling, mobile operation, and API debugging scenarios. Beginners can follow along to get usable JSON data.
tool-tutorialsWhat Is HTML Formatting? A Beginner's Guide to the Key Points
Use a browser-based HTML formatting tool that runs locally to restore compressed or messy HTML into an indented, readable structure. Also understand the difference between formatting and minification, the troubleshooting order for messed-up indentation, and how to handle large files getting stuck and mobile no-install solutions.