JWS Verifier
Verify a compact JWS/JWT signature client-side. Supports HMAC shared secrets and PEM public keys for asymmetric algorithms.
About this tool
JWS Verifier is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Developer Tools — Advanced. Browse more Developer Tools — Advanced tools.