Decode and inspect JWT tokens
Decode and inspect JSON Web Tokens
Decode and debug JWT tokens online for free. Inspect headers, payloads, and claims instantly. 100% private browser-based tool.
Everything you need to know about JWT Decoder.
JSON Web Tokens (JWT) are the lifeblood of modern web authentication. But when something goes wrong with your auth flow, you need an instant, reliable way to inspect JWT tokens without compromising security.
Most online JWT tools send your tokens to their servers for processing. In a production environment, this is a massive security risk. A JWT often contains:
Toolnett's **secure JWT inspector** works entirely **locally in your browser**. This means your sensitive authentication data **never leave your device**. It's the only way to decode JWT online with 100% confidence in your data privacy.
Our decoder goes beyond just showing you raw JSON. We automatically parse the standard JWT claims to give you human-readable insights:
Whether you're troubleshooting a "401 Unauthorized" error or verifying that your backend is issuing the correct scopes, our formatted JSON output and syntax highlighting make reading complex payloads effortless. You can quickly spot missing keys, malformed objects, or incorrect permission strings.
Experience the gold standard in secure JWT debugging. No signup, no tracking, just the data you need to build better software.
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