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JWT Parser

Decodes a JSON Web Token and shows its header and payload claims.

Artifact by Corentin Thomasset (IT-Tools)

IndexedGPL-3.0Security & privacyNo sign-up

Use it

Opens it-tools.tech in a new tab. Nothing to install.

You provide
JWT string
You get
Decoded header and claims
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
Open-source web app
Source
Open source
Link check
Answered on Oct 31, 2026

About

JWT Parser is an open-source web app in the security privacy category (jwt decoder). It opens in your browser, so there is nothing to install. You provide JWT string and get decoded header and claims. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (CorentinTh/it-tools).

Category: Security & privacy · jwt decoder

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Details

Auth
No auth
License
GPL-3.0
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

More from Corentin Thomasset (IT-Tools)

Cite this page

JWT Parser: free online tool. Agent Mart. https://agentmart.dev/artifacts/jwt-parser (last updated 2026-10-31)