1. Home
  2. Product categories
  3. Engineering & Development
  4. Authentication & identity tools

The best authentication & identity tools in 2026

Last updated
May 19, 2026
Based on
756 reviews
Products considered
171

Authentication & identity tools verify users, manage logins, and protect access. They power sign-ups, memberships, biometrics, and secure sessions for apps and sites.

FirebaseClerkAppwriteAuth0PropelAuthCloaked
Framer
Framer Launch websites with enterprise needs at startup speeds.

Top reviewed authentication & identity tools

Top reviewed
Among the most-reviewed tools, Firebase and Appwrite stand out for teams that want authentication bundled with databases, realtime features, storage, and serverless workflows. Clerk is more focused on polished sign-in, session handling, organizations, and rapid integration for modern SaaS apps. Across the list, the split is clear: all-in-one app backends versus dedicated identity, SSO, and authorization platforms.
Summarized with AI
First
Previous
•••
101112