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Home/Categories/Backend Development/Better Auth
icon of Better Auth

Better Auth

Open source alternative to Clerk, Auth0, Okta and Firebase Authentication

  • 30.4K stars
  • MIT
  • Active this week
  • Last commit 1 day ago

Last verified Oct 20, 2026

Secure TypeScript apps with self-hosted auth, MFA, social sign-on, and multi-tenancy instead of paid identity clouds like Clerk or Auth0.

Visit websiteGitHub30.4K starsDeploy on Hostinger
image of Better Auth
TL;DR

Better Auth is a TypeScript authentication framework for application teams that want auth inside their codebase rather than as a separate hosted identity service. It covers email login, OAuth, sessions, two-factor flows, and plugin-based extensions for modern web apps. It is not an Okta replacement for enterprise workforce identity, but it can replace Auth0-style app authentication for teams that want MIT-licensed control.

Read the full breakdownHide the full breakdownWho it is for, how it works, trade-offs and the FAQ
who it's for

Who Better Auth is for#

TypeScript startups replacing hosted app auth

Use Better Auth when a Next.js or full-stack TypeScript app needs customer login, OAuth, sessions, and extensibility without per-user hosted auth lock-in.

Skip if:

Skip it if you need enterprise workforce SSO, device management, lifecycle governance, or compliance packages from an identity vendor.

Developers standardizing auth across apps

Use Better Auth when multiple TypeScript apps need a shared approach to auth behavior and database-backed sessions.

Skip if:

Skip it if your organization does not have engineering capacity to own authentication code safely.

the problem

The problem it solves#

Hosted auth is convenient until the application needs behavior the vendor pricing tier, data model, or extension system does not support. Teams building TypeScript apps often want login, sessions, OAuth, organizations, and two-factor flows without sending every identity decision through a black-box service.

The risk is ownership. Authentication touches user data, security policy, account recovery, and product onboarding. When it lives outside the app, customization can become expensive and migration can become risky.

how Better Auth solves it

How it solves it#

TypeScript-native auth API

Better Auth is designed for TypeScript application stacks, so auth logic can live alongside the app code and types. That helps teams keep login behavior reviewable instead of pushing every change into a vendor dashboard.

Plugin-based auth features

Add capabilities such as OAuth, two-factor auth, organizations, and other auth flows through plugins. The plugin model lets teams start with core login and expand as product requirements mature.

Own your auth data model

Teams can keep users, sessions, and related auth state closer to their own database and application logic. That is the main difference from using a hosted auth service as the system of record.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • Better fit for app auth than enterprise IAMBetter Auth is strongest for product authentication inside TypeScript apps. That is narrower than Okta, but it is exactly the right scope for teams that need customer login instead of workforce identity governance.
  • MIT licensed frameworkMIT licensing gives startups and product teams a low-friction base for commercial application auth. Teams can inspect the framework and adapt it without accepting per-user hosted auth pricing by default.

Trade-offs

  • -Security ownership stays with youBetter Auth gives teams control, but the team still owns secure configuration, account recovery flows, database protection, and updates. Auth0 and Okta reduce that burden with managed infrastructure, enterprise controls, and support.
versus alternatives

Better Auth vs alternatives#

Better Auth vs Auth0

Better Auth is the better fit when a TypeScript team wants customer authentication inside the application codebase, with direct control over sessions, plugins, and database behavior. Auth0 is stronger when a team wants managed identity infrastructure, enterprise features, support, and compliance packages. Choose Better Auth for app-level control; choose Auth0 when managed identity operations matter more.

tech stack · detected from GitHub

What it's built on#

Languages
TypeScript
Frameworks
Next.jsReact
Infrastructure
OAuth 2.0
Search
Typesense
frequently asked

FAQ#

What does Better Auth replace?

Better Auth can replace Auth0-style customer authentication for TypeScript applications. It should not be positioned as a full replacement for Okta or Microsoft Entra workforce identity suites.

Is Better Auth self-hosted?

Better Auth is a framework you run inside your own application, not a separate hosted identity server. Your app and database own the runtime behavior.

What license does Better Auth use?

Better Auth uses MIT. That permissive license supports commercial use, modification, and redistribution with attribution.

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Hostinger

Run Better Auth on your own server

Self-host Better Auth on a Hostinger VPS.

Deploy on Hostinger

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