better-auth
better-auth is an open-source TypeScript project with 28.7k GitHub stars. It is associated with authentication, iam, oauth, oauth2. The repository is actively maintained, with recent commits.
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[](https://opensources.dev/resource/better-auth)MITPermissive — free to use in commercial and proprietary software, with attribution.View license →
Production readiness
4/5- Actively maintainedCommits in the last 6 months
- No known vulnerabilitiesNot yet scanned
- Clear, usable licenseMIT (permissive)
- Proven adoptionWidely used
- Has documentationDocumentation indexed
Install
npm install better-authDocumentation from better-auth, shown under MIT with attribution. Source: https://better-auth.com
Website & Docs
The main website and documentation for better-auth.com
Quick Start
# install
pnpm install
# develop
pnpm dev
Open localhost:3000 to preview.
Stack
Framework: Next.js 16 (App Router, Turbopack)
Styling: Tailwind CSS 4
Animation: Framer Motion
Docs: Fumadocs
Icons: Lucide React
Fonts: Geist Sans & Geist Mono
Structure
├─ app/
│ ├─ page.tsx # Home — hero + sign-in demo
│ ├─ products/ # Products page
│ ├─ blog/ # Blog posts
│ └─ docs/[[...slug]]/ # Documentation (MDX)
│
├─ components/
│ ├─ landing/ # Marketing components
│ ├─ docs/ # Documentation components
│ ├─ ui/ # Shared primitives
│ └─ icons/ # Brand icons & logo
│
├─ content/ # MDX documentation files
│
├─ lib/
│ ├─ source.ts # Fumadocs content source
│ └─ utils.ts # Utilities
│
└─ public/
└─ branding/ # Logo assets (SVG + PNG)
Scripts
pnpm dev # Start dev server (Turbopack)
pnpm build # Production build
pnpm start # Serve production build
pnpm lint:fix # Lint & auto-fix with Biome