ZITADEL

Identity infrastructure, simplified for you Secure authentication management for your application. Customize as you grow, with easy APIs and programmable workflows. Focus on growing, your login is in good hands. https://zitadel.com

SuperTokens

https://github.com/supertokens SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based), Social / OAuth 2.0 etc… Access control Session management User management Self hosted / managed cloud