Tools
Free developer tools for identity work
Browser utilities for JWTs, SAML, TLS, OAuth, and visitor signals, built for teams shipping authentication.
Search nine browser-based utilities. No account required.
Browser toolbox
Inspect, verify, and debug without leaving your browser
SSL Check
Analyze certificate validity, chain trust, and TLS configuration.
JWT Playground
Encode, decode, and inspect JWTs in the browser.
SAML Decoder
Decode and verify SAML assertions and responses.
Know Your Visitor
See your IP, location, device, and live suspect score.
JWKS Inspector
Inspect JSON Web Key Sets, key IDs, algorithms, and public keys.
OIDC Discovery Inspector
Inspect provider metadata, endpoints, scopes, and capabilities.
PKCE Generator
Generate secure verifier and challenge pairs for OAuth flows.
TOTP Generator
Generate and inspect time-based one-time passwords locally.
Webhook Signature Verifier
Verify signed webhook payloads against a shared secret.
Need production-ready auth?
Use these tools to debug and inspect, then ship SSO, MFA, and access control with Authdog.