> For the complete documentation index, see [llms.txt](https://gitbook.seguranca-informatica.pt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook.seguranca-informatica.pt/tools/web-and-and-dns/jwt.md).

# JWT

[**jwt-key-id-injector**](https://github.com/dariusztytko/jwt-key-id-injector)**:** Simple python script to check against hypothetical JWT vulnerability.

```
python3 injector.py eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.zbgd5BNF1cqQ_prCEqIvBTjSxMS8bDLnJAE_wE-0Cxg
```

 [**MyJWT**](https://github.com/mBouamama/MyJWT): This cli is for pentesters, CTF players, or dev. You can modify your jwt, sign, inject ,etc…