6 free alternatives to MojoAuth

Auth0's free tier includes up to 25,000 monthly active users, passwordless authentication, unlimited social connections subject to system limits, 5 organizations, brand customization, basic attack protection, community support, 1 enterprise connection, self-service SSO, and SCIM. It is also broad enough for teams that want hosted login plus organization-aware identity features from the start. Where it stands out is the mix of enterprise-oriented controls in the free plan, especially organizations and SCIM. It falls short on credit-card friction because custom domain verification requires one, while MojoAuth's free tier does not require a card. Switch here if you want more identity management depth at the same MAU ceiling.

• Beats MojoAuth: More built-in enterprise identity features, including organizations and SCIM.
• Falls short: A credit card is required for custom domain verification.
• Who should switch: Choose Auth0 if your free project needs stronger organization and enterprise identity features at the same user ceiling.

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Logto's free tier gives up to 50,000 monthly active users, 50,000 tokens per month, user authentication, 1 machine-to-machine app, account APIs, audit logs and user management, 3 total applications, 3 social connectors, 1 custom domain, 1 webhook, and 3 days of audit-log retention. That makes it a practical free option for builders who need a hosted auth service with some backend and operational hooks, not just sign-in methods. Its clear win is headroom, since its MAU allowance is double MojoAuth's free cap. It falls short on immediate social-login breadth and does not advertise the same hosted registration and login page focus. Switch if your first issue is usage volume.

• Beats MojoAuth: Higher free MAU ceiling, at 50,000 monthly active users.
• Falls short: Fewer included social connectors and less emphasis on hosted login pages.
• Who should switch: Choose Logto if you are bumping into MojoAuth's MAU cap first.

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SuperTokens' free offering includes email/password authentication, social login and SSO providers such as Google, GitHub, Facebook, and custom providers, passwordless magic-link authentication, passwordless SMS and email OTP, username and phone-number login, email verification, forgot-password flows, sign-up and sign-in page UI, RBAC, a user management dashboard, session management, hooks and custom actions, SOC 2 compliance, community support, and a cloud plan that is free under 5,000 monthly active users. It is the broadest feature set in this group for teams that want to control their auth experience without giving up core identity building blocks. It falls far short of MojoAuth on free traffic headroom because the managed cloud free tier stops at 5,000 MAU. Switch if you want more auth surfaces, not more volume.

• Beats MojoAuth: Much broader authentication feature coverage, including RBAC, session management, and custom actions.
• Falls short: Lower cloud free MAU ceiling, at 5,000 monthly active users.
• Who should switch: Choose SuperTokens if feature coverage matters more than free usage volume.

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Clerk's free tier includes up to 3 dashboard seats, unlimited applications, 50,000 monthly retained users per app, up to 5 user impersonations, APIs and prebuilt UIs for sign-up, sign-in, and user profile, most authentication features, custom domain support, a fixed 7-day session lifetime, machine authentication with API keys and M2M tokens subject to monthly limits, up to 3 social connections, passwords with leaked-password checks, email code and email link authentication, web3 wallet authentication, account linking, webhooks, security controls such as brute-force and bot protection, organization features, and community support. It is especially good for teams that want a polished auth UI plus admin and organization tools in the free plan. It falls short on monthly active user headroom compared with MojoAuth's 25,000 MAU allowance, because Clerk keys free access to retained users per app rather than the same style of MAU limit. Switch if you want more built-in UI and team workflow features.

• Beats MojoAuth: Stronger prebuilt UI, admin, and organization tooling in the free plan.
• Falls short: Different free usage model and less direct MAU clarity than MojoAuth.
• Who should switch: Choose Clerk if you want a broader free auth UI and team workflow package.

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Hexclave's free tier includes up to 10,000 auth users, 1 dashboard admin, 1,000 emails per month, email, OAuth, and magic links, plus community support. It is a simpler free hosted plan for solo builders and small side projects that only need the basics. Its main advantage is that the setup surface is lightweight if you are building around a smaller authentication footprint. It falls short badly on scale, since its free plan caps auth users at 10,000 and emails at 1,000 per month, both below MojoAuth's free MAU ceiling. Switch here only if you want a simpler free tier and do not need much volume.

• Beats MojoAuth: Simpler hosted setup for small projects that only need basic auth methods.
• Falls short: Much lower free caps, especially 10,000 auth users and 1,000 emails per month.
• Who should switch: Choose Hexclave if you want a light free plan for a small project, not growth headroom.

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Kinde's free tier includes 10,500 monthly active users, 5 monthly active organizations, unlimited dashboard seats, unlimited applications, a 0.7% platform fee per customer transaction, custom billing plans, fixed charges, feature-based entitlements, metered and unmetered pricing, customer self-serve portals, plan changes and cancellation workflows, 1 billing webhook, billing APIs, password and passwordless email auth, 10 SMS for passwordless phone auth, username authentication, social sign-on, SAML and Enterprise SSO, 2,000 M2M tokens, API authorization, multiple audiences, custom claims, custom session tokens, custom JWT claims, MFA, migration tools, user management, RBAC, custom page templates, custom SMS and email providers, custom domain, organization branding, 1 webhook per environment, 1 production and 1 non-production environment, 10 feature flags, and strong protection controls. It beats MojoAuth most clearly when you need billing, entitlements, and auth in one free stack, but its MAU ceiling is much lower. Switch if your free plan must also cover subscription logic.

• Beats MojoAuth: Includes billing, entitlements, and subscription management on the free plan.
• Falls short: Lower free MAU ceiling, at 10,500 monthly active users.
• Who should switch: Choose Kinde if you need auth plus billing and entitlement workflows in one place.

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