PaXa Labs / 15 · Available now

JWT
Inspector

PaXa Labs JWT Inspector

Decode and inspect token structure, registered claims, timestamps and warnings without sending the JWT anywhere.

100% client-side · Inspection only · No token storage
Your token stays in your browser.Nothing is uploaded, transmitted or saved.
01Token Input

Decoded automatically as you type or paste.

Inspection statusWaiting for a token

Paste a JWT or load the safe example to begin.

EMPTY
Token structure

HEADER.PAYLOAD.SIGNATURE

Enter a three-section token to inspect its encoded anatomy.

Decoded token

Claims and structure

DECODED ≠ VERIFIED
No decoded token yet

Paste a JWT or load the example to inspect its contents.

How JWTs work

Three sections, different jobs.

01Header

Describes the token type and signing algorithm.

02Payload

Contains registered and application-specific claims.

03Signature

Helps a trusted system verify that the token was not altered.

Important: JWT payloads are encoded, not encrypted. Anyone holding a token can usually decode its payload. Decoding does not prove authenticity.