--- title: "Clerk vs Auth0 vs Supabase Auth (2026 Comparison)" description: "Clerk vs Auth0 vs Supabase Auth in 2026: an honest comparison of three auth providers on developer experience, free tiers, cost at scale and which to choose." type: "comparison" locale: "en" canonical: "https://agenticschool.dev/compare/clerk-vs-auth0-vs-supabase-auth" datePublished: "2026-06-13" dateModified: "2026-06-13" --- # Clerk vs Auth0 vs Supabase Auth (2026 Comparison) - Keywords: clerk vs auth0, clerk vs auth0 vs supabase auth, best auth for indie hackers, auth provider comparison - Canonical URL: https://agenticschool.dev/compare/clerk-vs-auth0-vs-supabase-auth - Locale: en > Clerk vs Auth0 vs Supabase Auth in 2026: an honest comparison of three auth providers on developer experience, free tiers, cost at scale and which to choose. Clerk, Auth0 and Supabase Auth are the three authentication providers most teams choose between in 2026 to handle sign-up, login, sessions and access control without building auth from scratch, which is the part of an app you really do not want to get wrong. They aim at different users: Clerk leads on developer experience with drop-in UI components and the smoothest setup; Auth0 (an Okta product) is the enterprise standard for SAML single sign-on, compliance and advanced security; and Supabase Auth comes bundled with a Supabase Postgres database and Row Level Security, with the most generous free tier and the lowest cost at scale. All three implement modern standards like OAuth and OpenID Connect under the hood. This page compares them honestly on developer experience, free tiers, cost at scale and openness so you can match the provider to your project. For the standard they are built on, see our What Is OAuth explainer, and if you are also choosing a database, see our Convex vs Supabase vs Firebase comparison. Pricing is as of 2026 and moves over time. ## Options ### Clerk The best developer experience with drop-in auth UI. - Tagline: Indie hackers and SaaS teams who want beautiful pre-built auth UI and the fastest path to production. - + Outstanding developer experience: drop-in UI components for sign-in, sign-up, user profiles and organizations. - + Fast to integrate, especially with modern React and Next.js stacks, with sensible defaults. - + A generous free tier (about 10,000 MAU as of 2026) and modern features like passkeys and multi-factor auth built in. - - Managed and closed-source, so you cannot self-host the core service. - - Per-MAU pricing after the free tier means cost grows with your user base. ### Auth0 The enterprise standard for SSO and compliance (Okta). - Tagline: Enterprises and B2B SaaS that need SAML SSO, advanced security policies and strong compliance. - + The most mature enterprise feature set: SAML and enterprise SSO, fine-grained rules, anomaly detection and broad compliance. - + Battle-tested at large scale and backed by Okta, with deep extensibility and integrations. - + Supports every common standard and identity scenario, including complex B2B and multi-tenant setups. - - Per-MAU pricing gets expensive fast at scale (well into the hundreds of dollars a month at six figures of users). - - More configuration overhead than Clerk, and can be heavier than an indie project needs. ### Supabase Auth Open-source auth bundled with a Postgres database. - Tagline: Teams already on Supabase, or anyone who wants the cheapest auth at scale with the option to self-host. - + Bundled free with a Supabase project: users live in real Postgres tables and pair naturally with Row Level Security. - + The most generous free tier (about 50,000 MAU as of 2026) and the lowest cost per MAU at scale. - + Open-source and self-hostable, so you can avoid lock-in and keep identity data in-house. - - Fewer polished drop-in UI components than Clerk, so you build more of the front end yourself. - - Lighter on advanced enterprise features (deep SSO, fine-grained policies) than Auth0. | Clerk | Auth0 | Supabase Auth | - Vendor: Clerk | Auth0 (Okta) | Supabase - License: Closed-source (managed) | Closed-source (managed) | Open-source (Apache-2.0) - Self-hosting: No | No (managed) | Yes, with Supabase - Developer experience: Best-in-class drop-in UI | Powerful but more configuration | Good, more build-your-own UI - Free tier (as of 2026): About 10,000 MAU | Free MAU tier (smaller) | About 50,000 MAU - Cost at scale: Moderate (per MAU) | Highest (per MAU) | Lowest (per MAU) - Best for: Fast SaaS setup, great auth UI | Enterprise SSO and compliance | Supabase users, cheap at scale, self-hosting ## Verdict Pick Clerk if you want the best developer experience and the fastest path to production: drop-in UI components, modern features like passkeys and a generous free tier make it the favourite for indie hackers and React or Next.js SaaS, accepting that it is managed and priced per MAU. Pick Auth0 if you are an enterprise or B2B SaaS that needs SAML single sign-on, advanced security policies and broad compliance; it is the most capable and most battle-tested, with the trade-off that per-MAU pricing gets expensive at scale. Pick Supabase Auth if you are already on Supabase or you want the cheapest auth at scale with the option to self-host; it pairs naturally with Postgres and Row Level Security and has the most generous free tier, at the cost of fewer polished UI components and lighter enterprise features. The honest rule of thumb: Clerk for developer experience, Auth0 for enterprise needs, Supabase Auth for cost and openness. All three are built on standards like OAuth and OpenID Connect, explained in our What Is OAuth guide. ## FAQ ### Clerk vs Auth0 vs Supabase Auth: which should I use? It depends on your priorities. Choose Clerk for the best developer experience and drop-in UI, ideal for fast SaaS launches. Choose Auth0 if you need enterprise SSO (SAML), advanced security and compliance. Choose Supabase Auth if you already use Supabase or want the cheapest auth at scale with the option to self-host. Match the provider to whether you value DX, enterprise features or cost and openness. ### Which is the best auth provider for indie hackers? For most indie hackers, Clerk is the best choice because its drop-in UI components and smooth setup get you to a working sign-in flow fastest, with a generous free tier. Supabase Auth is the strong alternative if you are already using Supabase for your database or want the cheapest path as you grow. Auth0 is usually more than an indie project needs. ### Which auth provider is cheapest at scale? Supabase Auth is the cheapest at scale as of 2026: it has the largest free tier (around 50,000 MAU) and the lowest cost per MAU after that. Clerk is moderate, and Auth0 tends to be the most expensive at scale, where per-MAU pricing can reach hundreds of dollars a month at six figures of users. ### Can I self-host my authentication? Of the three, Supabase Auth is the self-hosting option: it is open-source under Apache-2.0 and runs as part of a self-hosted Supabase stack. Clerk and Auth0 are managed, closed-source services and cannot be self-hosted, though they remove a lot of operational burden in return. ### Do these providers use OAuth? Yes. Clerk, Auth0 and Supabase Auth all implement modern standards such as OAuth 2.0 and OpenID Connect, which is how they support social logins (Google, GitHub and others) and secure token-based sessions. See our What Is OAuth explainer for how the standard works and why it matters for secure sign-in.