Supabase Auth vs Better Auth
Learn how Supabase Auth and Better Auth differ in their key features like authentication, enterprise auth, security, user management and compliance, so you can decide which of these authentication providers is best for you.
Supabase Auth

Better Auth

Feature Comparison
Both tools offer comparable feature coverage, with Supabase Auth supporting 29 features and Better Auth supporting 25. Consider your specific needs regarding authentication, enterprise auth, security, user management and extensibility when making your decision. Supabase Auth fully covers extensibility and platform.
Magic link and email OTP plugins allow passwordless sign-in using one-time links or codes
Supports multiple social providers through built-in OAuth and generic OAuth plugin for custom providers
Supabase does not offer built-in passkey authentication but offers a third‑party integration with Corbado to support Passkeys
The passkey plugin adds FIDO2 / WebAuthn support for passwordless, phishing‑resistant sign‑in
User sessions are long‑lived by default and can be time‑boxed or configured with inactivity timeouts on paid plans
Session settings allow you to configure expiresIn and updateAge to create longer or shorter sessions
Supabase lets developers control session duration, enforce inactivity timeouts and revoke sessions through the Admin API
No official multi‑language or localization support, but a community plugin for localization exists
| Supabase Auth | Better Auth | |
|---|---|---|
Magic link and email OTP plugins allow passwordless sign-in using one-time links or codes | ||
Supports multiple social providers through built-in OAuth and generic OAuth plugin for custom providers | ||
Supabase does not offer built-in passkey authentication but offers a third‑party integration with Corbado to support Passkeys | The passkey plugin adds FIDO2 / WebAuthn support for passwordless, phishing‑resistant sign‑in | |
User sessions are long‑lived by default and can be time‑boxed or configured with inactivity timeouts on paid plans | Session settings allow you to configure expiresIn and updateAge to create longer or shorter sessions | |
Supabase lets developers control session duration, enforce inactivity timeouts and revoke sessions through the Admin API | ||
No official multi‑language or localization support, but a community plugin for localization exists |
Compliance Comparison
Supabase Auth offers significantly broader coverage than Better Auth, supporting 3 certifications and regulatory frameworks compared to 0 for Better Auth. Since Better Auth is open source and does not include compliance certifications, you’ll need to manage compliance yourself.
| Compliance | Supabase Auth | Better Auth |
|---|---|---|