6 free alternatives to ZITADEL

Auth0's free plan gives up to 25,000 monthly active users, 1 custom domain, 5 organizations, 1 enterprise connection, self-service SSO, SCIM, passwordless authentication, unlimited social connections subject to system limitations, brand customization, basic attack protection, and community support. It is a broad free tier for teams building standard web, mobile, or agent auth flows. Compared with ZITADEL, it gives far more room on user volume and organization count before you pay. The tradeoff is that a credit card is required for the custom domain, and ZITADEL is more permissive on free access to core setup. Switch if your main problem is hitting user-volume limits, not feature breadth.

• Beats ZITADEL: 25,000 monthly active users versus 100 daily active users
• Falls short: Credit card verification is required for the custom domain
• Who should switch: Switch here if you need much higher free user volume and can live with the card requirement.

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Logto's free plan includes up to 50,000 monthly active users, 50,000 tokens per month, 3 total applications, 1 machine-to-machine app, 3 social connectors, 1 custom domain, 1 webhook, audit logs retained for 3 days, account APIs, user management, and 1 tenant member for console access. It is a strong free hosted auth option for teams that want both customer identity and basic authorization surface area. Compared with ZITADEL, it offers much more room before usage limits matter, especially on active users and tokens. It falls short if you need ZITADEL's broader free security posture framing, and its free tier is still capped across several operational limits. Switch if you want a free plan with more breathing room for product growth.

• Beats ZITADEL: 50,000 monthly active users and 50,000 tokens per month
• Falls short: Only 3 days of audit log retention
• Who should switch: Switch here if you want the largest free usage headroom without changing your auth architecture much.

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Kinde's free tier includes 10,500 monthly active users, 5 monthly active organizations, unlimited dashboard seats, unlimited applications, 0.7% platform fee per customer transaction, custom billing plans, fixed charges, feature-based entitlements, metered and unmetered usage pricing, a customer self-serve portal, billing APIs, a billing webhook, and a broad set of authentication features like passwordless email, social sign-on, SAML and Enterprise SSO, custom SAML, MFA, audit logs, unlimited users per organization, RBAC, feature flags, custom page templates, custom domain, and email support. It beats ZITADEL on total product surface if you also need billing and subscription management. It falls short on the free active-user ceiling and introduces transaction fees. Switch if identity is only one part of a SaaS billing stack.

• Beats ZITADEL: Billing and subscription-management features are included free
• Falls short: 0.7% platform fee per customer transaction
• Who should switch: Switch here if your auth tool also needs to handle billing and access entitlements.

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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 link login, plus community support. It is a compact free plan for solo builders and small side projects that want a hosted auth product with simple onboarding. Compared with ZITADEL, it gives a much higher user ceiling and includes email delivery volume directly in the free tier. It falls short on organization handling and broader identity-provider variety at the free level. Switch if your project is small but already needs more than ZITADEL's 100 daily active users or wants a simpler, low-friction hosted setup.

• Beats ZITADEL: Up to 10,000 auth users and 1,000 emails per month
• Falls short: Only 1 dashboard admin included
• Who should switch: Switch here if you are building a small app and want a simpler free auth setup with more user room.

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PropelAuth's free tier includes 10,000 monthly active users, unlimited organizations, unlimited waitlist users, custom domain support, 2FA and RBAC, and customizable UIs, including split-screen layouts. It is aimed at B2B products that need organization-centric auth out of the box. Compared with ZITADEL, it gives far more room on user volume and keeps organizations unlimited, which is helpful if tenant structure matters more than traffic caps. It falls short if you need the broadest free security feature set or a very large credit-card-free setup, since the card requirement is not clearly waived. Switch if your product is B2B and the free plan must support many organizations.

• Beats ZITADEL: Unlimited organizations on the free tier
• Falls short: Card requirement is not clearly waived
• Who should switch: Switch here if organization-heavy B2B auth matters more than staying completely card-free.

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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, usernames, password checks, email code and email link auth, account linking, metadata storage, webhooks, bot and brute-force protection, full data exports, B2B auth add-on support, and organization roles and permissions. It beats ZITADEL on everyday product ergonomics and much higher retained-user volume. It falls short on the free seat cap and the narrower machine-auth allowance. Switch if you want polished app auth UI and enough free headroom for a small production app.

• Beats ZITADEL: 50,000 monthly retained users per app
• Falls short: Up to 3 dashboard seats only
• Who should switch: Switch here if you want the smoothest app-auth experience with much more free user headroom.

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