Plugin-based authentication framework that runs inside a developer's own application across Next.js, Nuxt, SvelteKit, and other stacks.
Better Auth is a composable authentication framework that lives inside the customer's application rather than in a separate hosted service. It works with Next.js, Nuxt, SvelteKit, Astro, Hono, and many other frameworks, and extends through plugins.
Built-in coverage spans credential sign-in with sessions, email verification, and password reset, social sign-on, and multi-tenancy with teams, roles, and invitations. Enterprise single sign-on through SAML 2.0 and SCIM sits beside authentication for AI agents, including MCP auth, token exchange, and agent delegation.
| Attribute | Better Auth | Supabase Auth | |
|---|---|---|---|
| Provider |  |  | |
| Founded | 2024 | 2020 | |
| Sells To | Developers | Enterprise, Small Business | |
| Pricing Model | Open source with cloud beta | Recurring, Software, Usage-based | |
| Ownership | Venture-backed | Equity, Venture-backed |
Provider
Founded 2024
Sells To Developers
Pricing Model Open source with cloud beta
Ownership Venture-backed
Provider
Founded 2020
Sells To Enterprise, Small Business
Pricing Model Recurring, Software, Usage-based
Ownership Equity, Venture-backed
Open-source platform that bundles user infrastructure including authentication, teams, payments, emails, analytics, webhooks, and admin tooling.
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