Auth0

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Identity platform for login, SSO and fine-grained authorization.

8.5$35/moFree plan

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Drop-in authentication and user management for modern web apps.

8.9DevelopmentAuthentication

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$25/mo

Open-source backend: Postgres, auth, storage, realtime and edge functions.

9.2DevelopmentBackend

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Framework-agnostic TypeScript auth library with plugins and a full UI kit.

8.7DevelopmentAuthentication

FreeNext.jsReactTypeScriptOpen sourceAuth

Git hosting, pull requests, Actions and the default home for open source.

9.4DevelopmentGit

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$4/mo

Open-source backend platform: auth, databases, storage and functions.

8.3DevelopmentBackend

FreeJavaScriptTypeScriptBaaSOpen source

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A collective list of free public APIs for software and web development.

DevelopmentLearning

FreeOpen sourceLearning

Payments infrastructure for checkout, subscriptions and billing.

9.3DevelopmentPayments

FreeJavaScriptRubyTypeScript

Usage-based