Authsignal vs Better Auth
Learn how Authsignal 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.
Authsignal

Better Auth

Feature Comparison
Better Auth offers broader feature coverage than Authsignal , supporting 42 features compared to 35. Better Auth fully covers authentication.
Email OTP and email magic links
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
The passkey plugin adds FIDO2 / WebAuthn support for passwordless, phishing‑resistant sign‑in
Access and refresh token durations are configurable per app client
Session settings allow you to configure expiresIn and updateAge to create longer or shorter sessions
The session management APIs let you issue, validate, refresh and revoke access tokens and refresh tokens
Multi-language is supported via the i18n plugin
| Authsignal | Better Auth | |
|---|---|---|
Email OTP and email magic links | 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 | ||
The passkey plugin adds FIDO2 / WebAuthn support for passwordless, phishing‑resistant sign‑in | ||
Access and refresh token durations are configurable per app client | Session settings allow you to configure expiresIn and updateAge to create longer or shorter sessions | |
The session management APIs let you issue, validate, refresh and revoke access tokens and refresh tokens | ||
Multi-language is supported via the i18n plugin | ||
Compliance Comparison
Authsignal offers significantly broader coverage than Better Auth, supporting 7 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 | Authsignal | Better Auth |
|---|---|---|