The Best Auth Solutions For Modern Web Apps

This list covers authentication solutions commonly used in modern web applications built with frameworks like Next.js, React, and similar stacks. It focuses on products that handle core auth needs out of the box, such as email and social login, passwordless flows, session management, MFA, and basic multi-tenant support. The tools here prioritize fast integration, good developer experience, and managed infrastructure, making them a typical starting point for startups and product teams building SaaS or consumer apps.