Top 5 Better Auth alternatives for secure authentication in 2026

Better Auth has gained popularity as a TypeScript-first authentication library, offering a modern alternative to NextAuth with a strong developer experience and a clean plugin architecture. However, as applications scale and enterprise requirements arise, limitations such as the lack of SAML SSO, SCIM provisioning, pre-built UI components, and managed infrastructure prompt developers to consider alternatives. The guide explores five Better Auth alternatives for 2026, including WorkOS, Supabase Auth, Firebase Authentication, Stack Auth, and Ory, each catering to different needs ranging from integrated backend platforms and open-source flexibility to enterprise-ready solutions. WorkOS stands out for B2B SaaS companies due to its comprehensive features like pre-built UI, SSO, SCIM, and compliance tools, making it a suitable choice for teams targeting enterprise customers. In contrast, Supabase Auth and Firebase Authentication are better suited for startups and those within the Google ecosystem, while Stack Auth and Ory offer open-source options with varying degrees of customization and infrastructure requirements. The right choice depends on specific use cases, team expertise, and growth trajectory, with WorkOS providing a robust option for those needing enterprise features without the operational burden.