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FusionAuth is a deploy-anywhere identity platform for teams that need self-hosting, complex user models or API-led authentication. Its listed starting price is $162, with a free plan, and it is closed-source. Alternatives take different routes: Logto is open-source and self-hostable, while WorkOS, Ory Network and others offer hosted identity services. Compare pricing against your usage and required features, then plan for the work of moving users and authentication flows.
01Why people leave FusionAuth
Closed source, even when self-hosted
A Reddit discussion highlights the distinction: running FusionAuth on your infrastructure does not make its application code open source.
Enterprise features affect the plan
A FusionAuth representative on Reddit said SCIM is part of Enterprise, not Essentials; confirm the plan needed for your provisioning requirements.
Pricing depends on several factors
A FusionAuth representative said pricing depends on plan, hosting and monthly active users. Compare your actual deployment and usage, not starting prices alone.
02The alternatives, ranked by fit
- Best open-source option
LogtoLogtoLogto is the clearest fit if the reason for leaving is FusionAuth’s closed-source model: it is open-source, self-hostable and built for OIDC applications. Its listed starting price is $24 with a free plan, but production costs depend on add-ons. Plan to move your OIDC configuration and sign-in flows; check the docs for the SDKs your application uses.
Trade-off: Add-ons affect production costs; confirm the required features and integration details before migration.
8.1/10from
$24/mofree plan - Best API-first IAM
Ory NetworkOry NetworkOry Network is a managed, API-first IAM option for customer identity, B2B SSO and SCIM. Its listed starting price is $64.17 with a development-only free tier, and production bills are usage-based. That makes it worth evaluating if you want a hosted API rather than self-hosting FusionAuth. Estimate production usage and map your existing authentication flows before switching.
Trade-off: The free tier is for development; production costs are usage-based.
7.2/10from
$64.17/mofree plan - Best for enterprise SSO
WorkOSWorkOSWorkOS is a hosted identity API for B2B apps, with a free tier and per-connection enterprise pricing. It fits teams prioritizing enterprise SSO, directory provisioning and multi-tenant organizations over running their own identity service. The listed starting price is $65. Before migrating, check how connection-based pricing compares with your tenant count and confirm the features your current setup depends on.
Trade-off: Hosted service and per-connection enterprise pricing may not suit self-hosting needs or every tenant model.
8.0/10from
$65/mofree plan - Best for framework-led apps
ClerkClerkClerk suits apps built with frameworks it supports and teams that want to outsource authentication operations. It offers organizations for B2B SaaS, with a listed starting price of $20 and a free plan. Check usage costs and deployment constraints before treating that starting price as a replacement budget; moving also means adapting your application to Clerk’s hosted user layer.
Trade-off: Framework support, usage costs and deployment constraints need checking against your stack.
7.6/10from
$20/mofree plan - Best for B2B identity
StytchStytchStytch offers hosted identity APIs for B2B apps, including organization-level authentication, SSO, SCIM and AI agent identity. It has a free plan, but its listed starting price is not published. Choose it when those hosted API capabilities match your roadmap; before replacing FusionAuth, confirm pricing for your usage and how you will move existing users and authentication flows.
Trade-off: Confirm pricing and migration paths before committing to the hosted service.
7.1/10from
Freefree plan - Best for customer and agent identity
DescopeDescopeDescope covers customer identity, tenant-aware B2B products and agent authentication and consent. Its listed starting price is $249 with a free plan, so compare the paid starting point with your required features and usage rather than assuming it will cost less than FusionAuth. Check deployment details and plan how application flows and users would move to its hosted identity service.
Trade-off: Verify deployment options and whether its starting price fits your required usage.
7.2/10from
$249/mofree plan
03Side by side
| Tool | Score | From | Free plan | Best for |
|---|---|---|---|---|
 FusionAuth FusionAuth (current) | 8.0 | $162/mo | Yes | Teams that need self-hosted identity |
| Logto Logto | 8.1 | $24/mo | Yes | Teams building OIDC-based applications |
| Ory Network Ory Network | 7.2 | $64.17/mo | Yes | Teams building customer identity |
| WorkOS WorkOS | 8.0 | $65/mo | Yes | B2B apps adding enterprise SSO |
| Clerk Clerk | 7.6 | $20/mo | Yes | Apps using supported frameworks |
| Stytch Stytch | 7.1 | Free | Yes | B2B apps with organization-level auth |
| Descope Descope | 7.2 | $249/mo | Yes | Teams building customer identity flows |
Questions people ask
Which FusionAuth alternative is open source?
Logto is the open-source option in this comparison, and it is also self-hostable and aimed at OIDC applications. That gives teams a route away from FusionAuth’s closed-source tradeoff. Check Logto’s documentation for the features and integrations your application needs before planning a migration.
Can I replace FusionAuth with a cheaper service?
Possibly, but listed starting prices are not directly comparable: they may reflect different features, usage models and deployment options. Logto starts at $24, WorkOS at $65, and FusionAuth at $162, each with a free plan listed. Compare expected production usage, required features and hosting costs before choosing.
What should I check before migrating from FusionAuth?
Inventory the authentication flows, user model, SSO and provisioning features your application relies on. Then compare those requirements with the alternative’s API approach, documentation, pricing model and deployment options. Ask the vendor how to export user data and migrate credentials or existing sessions; do not assume the process is automatic.