Best Authentication & Identity for WordPress in 2026

Google's social sign-in for websites, as a button or a One Tap prompt.

Authentication service built into the Supabase backend platform, with client SDKs, API endpoints and an MIT-licensed server.

Open source authentication library for JavaScript frameworks, kept in maintenance mode by the Better Auth team.

TypeScript authentication framework, MIT licensed and extended through plugins.

Hosted authentication and user management that Clerk describes as a complete user layer for apps.

Deprecated Google sign-in script for websites, superseded by Google Identity Services.

Apache-licensed identity and access management server, incubating at the CNCF since 2023.

Zero trust gate that verifies employees and contractors before they reach internal apps, inside Cloudflare's platform.

Customer identity platform for mid-market and growth-stage enterprises.

Social sign-in service that can hand the developer an Apple-generated address in place of the person's real email.

Okta's customer identity product, with attack protection that grows by plan.

Business-to-customer identity service from Microsoft, closed to fresh purchases since May 2025.

Facebook's login button for apps, which also requests permission to read a person's Facebook data.

Programmable wallet infrastructure for financial and crypto apps, including the login that opens each user's wallet.