Question 1

Does this tool verify the signature?

Accepted Answer

No, this is an offline inspector that decodes header and payload. It does not verify the signature against public/private keys.

Question 2

Are my files uploaded to a server?

Accepted Answer

No. AshKit does all of its work with JavaScript inside your own browser tab, so your files never leave your device and nothing is stored or logged.

Question 3

Is it really free, and do I need an account?

Accepted Answer

Yes, it is completely free and there is no sign-up, watermark, email wall or daily limit.

JWT Decoder

Frequently asked questions