Tokens & 2FA
JWT, TOTP, OTP, OAuth and PKCE — inspect them or generate them.
8 tools · nothing uploaded
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- PopularJWT InspectorDecode a JSON Web Token and see what every claim means.
- PopularJWT Signature VerifierCheck a JWT signature against your HMAC secret.
- OAuth State GeneratorGenerate the random state value that protects an OAuth callback.
- OAuth URL GeneratorBuild an OAuth 2.0 authorisation URL, with PKCE and state included.
- OTP GeneratorGenerate one-time passwords from a shared secret.
- PopularPKCE GeneratorGenerate a PKCE code verifier and its S256 challenge.
- PopularTOTP GeneratorGenerate live two-factor codes from a Base32 secret, with the countdown.
- PopularTOTP Secret GeneratorGenerate a TOTP secret and the otpauth URI an authenticator app scans.