About the JWT Decoder
The JWT Decoder separates compact tokens into parts, decodes header and payload with Base64URL and UTF-8, formats JSON, and shows registered claims. It also identifies compact JWE as unsupported to avoid confusing encoding with decryption.
How to decode JWT online
Paste a compact JWT or a value with a Bearer prefix, review header, payload, claims, and warnings, and copy only the pieces you need. Default sharing copies only the tool URL, without token content.