Ory Kratos
Next-gen identity server with Ory-hardened authentication
...Control every aspect with a headless API. Ory Kratos comes with support for a wide range of 2FA protocols such as TOTP, FIDO2 & WebAuthn, works with any UI framework, and only a few lines of code are required to get it up and running. Configurable login and registration flows, multi-factor authentication, custom identity models, and bring your own UI. Ory Kratos is open-source and grows more powerful with every pull-request. Ory Kratos is written in Go and we provide SDKs for every language. Customizable login, registration, and profile management without complexity. ...