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All Keycloak alternatives
Keycloak vs. OneLogin

Workforce SSO without per-module pricing.

OneLogin is a workforce SSO and access-management platform billed per user, with capabilities split across add-on modules. Keycloak delivers the same workforce SSO, MFA, and directory integration — without per-user, per-module pricing — backed by Phase Two hosting and support.

Open-source parity with
OktaAuth0PingWorkOSOneLogin
At a glance
Full table →
OneLoginYou
Keycloak
Per-user, per-module pricing$$$
Open-source core
Self-host / on-premise
SAML / OIDC / OAuth 2.0
Vendor lock-inHigh
The short version

Keycloak vs. OneLogin at a glance

DimensionOneLoginKeycloak (with Phase Two)
Licensing modelProprietary, subscriptionOpen-source (Apache 2.0), no license fee
Pricing driverPer-user, per-moduleFixed infrastructure / hosting cost, not per-user
Cost predictabilityAdd-on modules stack upPredictable, decoupled from user growth
DeploymentCloud / SaaS onlySelf-hosted, your cloud, on-premise, or managed
Data residency / sovereigntyLimited controlFull control over environment and data location
StandardsSAML, OIDC, OAuth 2.0SAML, OpenID Connect, OAuth 2.0
ExtensibilityApp catalog + API, boundedFull source access — SPI extensions, themes, custom code
Vendor lock-inHighLow — portable, standards-based
01 — TCO

Cost of Ownership

OneLogin (now part of One Identity) prices per user, per month, with the workforce-identity capabilities most organizations want spread across plan tiers and add-on modules. The base plan looks affordable; the number that matters is what it costs once you add the modules you actually need.

As of 2026, OneLogin's published workforce pricing scales roughly like this:

PlanPrice (per user / mo)Highlights
Basic$3SSO, MFA, Desktop Basic, lifecycle mgmt (5 apps)
Essentials$6Unlimited lifecycle management, Advanced Directory
Business$10SmartFactor, Desktop MFA, HR directories, RADIUS, Smart Hooks
EnterpriseQuote onlyLDAP sync, delegated admin, multiple brands, API Access Management

Figures reflect OneLogin's published list pricing as of 2026 (onelogin.com/product/pricing); typically billed annually. Customer Identity (CIAM) plans and the Enterprise tier are quote-only, and OneLogin Workflows is a separate $2/user/month add-on.

The per-user, per-module structure is what drives the real cost. Each employee is a recurring charge, and the advanced capabilities — adaptive MFA, lifecycle automation, HR-driven provisioning — push you into higher plans or paid add-ons. As headcount and requirements grow, so does the bill, on two axes at once.

Worse, several of the capabilities larger organizations depend on — API Access Management, LDAP sync, delegated administration, and Customer Identity (CIAM) — sit in the quote-only Enterprise tier, so the headline per-user numbers rarely reflect what an enterprise rollout actually costs.

Keycloak provides workforce SSO, MFA, LDAP/Active Directory integration, and brokering with no per-user fee and no module gating — every capability is part of the same open-source platform. Cost is driven by the infrastructure it runs on, not your employee count.

Winner: Keycloak

Phase Two managed hosting keeps that spend fixed as your workforce grows. See a side-by-side pricing estimate vs. OneLogin.

02 — Deployment

Architecture & Deployment

OneLogin is a cloud-based service, so there is little infrastructure to set up. That enables quick deployment and removes much of the DevOps burden. The trade-off is that enterprises with strict regulatory or data-residency requirements often need on-premise options that a SaaS-only model can't fully provide.

Keycloak can be deployed on-premise, in your own cloud, or via a managed cloud service. Because you control the deployment environment, it conforms to compliance and data-sovereignty needs and gives you greater control over your security and compliance standards.

Winner: Depends

If you need on-premise or strict data control, Keycloak wins clearly — and it still gives you the flexibility to self-host or use managed hosting.

03 — Operations

Maintenance

A strong advantage of OneLogin is that it's a managed service. From a DevOps perspective, it requires minimal maintenance — the OneLogin team handles updates, security patches, and infrastructure, keeping the system up to date. This comes at a cost, though, since customization is comparatively limited.

Self-hosted Keycloak requires more attention: organizations must allocate resources for installing, configuring, and updating the software, as well as managing the underlying infrastructure. This can be a drawback for teams without the necessary expertise. Phase Two removes this trade-off entirely: with managed hosting and zero-downtime upgrades, you get Keycloak's control without the operational load.

Winner: OneLogin for self-hosted Keycloak — a tie when Keycloak is managed by Phase Two

The receipts

See it side-by-side

What you actually get for what you actually pay.

Feature & cost comparison
OneLoginYou
Keycloak + Phase Two
Per-user / per-module pricing penalty$$$
Open-source core
Self-hostable (no lock-in)
On-premise / data residency
All capabilities without add-on modules$$$
Custom SAML / OIDC IdPs
Full source access & SPI extensions
Federate / broker existing IdP (LDAP/AD)
24/7 escalation with Keycloak experts
~80% avg. cost reduction on switch
04 — Capability

Functionality & Flexibility

OneLogin covers the workforce-identity essentials: SSO with a large app catalog, MFA (including its SmartFactor adaptive auth), a cloud directory, and lifecycle/provisioning — with deeper capabilities available as add-on modules. It's a capable, established access-management product.

Keycloak matches the core — SSO, MFA, directory federation via LDAP and Active Directory, and brokering — and adds fine-grained authorization (RBAC/ABAC) and fully themeable login. Being open source, every capability is included and extensible rather than gated behind modules.

Winner: Keycloak

The two are comparable on workforce SSO; Keycloak delivers it without per-module pricing and with a far higher customization ceiling.

05 — Interop

Integrating Keycloak with external systems like OneLogin

For organizations looking to transition from OneLogin to Keycloak — or to integrate Keycloak with systems already using OneLogin — Keycloak's flexibility offers a significant advantage. Keycloak can act as a broker that sits between OneLogin and your applications, letting you leverage the strengths of both platforms during a transition.

Keycloak's identity-brokering capability lets it delegate authentication to external identity providers (IdPs) such as OneLogin. Keycloak can manage internal permissions and roles, provide additional security checks, and maintain a consistent, user-friendly login experience across systems. This makes migrating off OneLogin a low-risk, phased process — you can move one piece at a time without disrupting user access or security.

06 — Verdict

Which IAM solution is best for me?

OneLogin is a reasonable fit for organizations that want a turnkey workforce SSO product and accept per-user, per-module pricing. For teams that want to avoid module gating, need on-premise or data-residency control, or want predictable cost as headcount grows, Keycloak is the more flexible and economical choice.

Phase Two runs Keycloak with enterprise hosting and 24/7 support, giving you workforce identity on open standards — without per-user licensing or vendor lock-in.

Migration

Already using OneLogin?

Moving to Keycloak is more approachable than most teams expect. We import users, broker authentication during a phased cutover, and move you off OneLogin without disrupting access.

See how we migrate teams to Keycloak
How we deliver

Two ways to run Keycloak with Phase Two

Managed Hosting

Managed Keycloak Hosting

Multi-region, high-availability Keycloak with 100+ extensions. Simple, cost-conscious, and customizable.

  • Up to 10,000+ concurrent users
  • 99.99% uptime SLA & SOC 2
  • Custom domains & branding
  • Dedicated or shared clusters
Enterprise Support

Enterprise Keycloak Support

Run your own Keycloak? Get expert escalation, security patches, and architecture guidance — at any level of complexity.

  • 24/7 escalation with named engineers
  • Security advisories & patch backports
  • Architecture & migration reviews
  • Dedicated Slack channel
Learn more
FAQ

Frequently asked questions

Is Keycloak a good alternative to OneLogin?

Yes. Keycloak supports the same standards as OneLogin (SAML, OIDC, OAuth 2.0) and covers workforce SSO, MFA, and LDAP/Active Directory integration, while being open source and free of per-user, per-module licensing.

Is Keycloak cheaper than OneLogin?

For most organizations, yes. OneLogin bills per user with advanced capabilities in higher plans or paid modules. Keycloak is priced on infrastructure and stays largely fixed as headcount grows, so teams frequently see substantial savings.

Can I migrate from OneLogin to Keycloak?

Yes. Keycloak can broker authentication to OneLogin and import users during a phased cutover, so you can migrate incrementally without disrupting employee access. See Migrate to Keycloak.

Does Keycloak integrate with LDAP and Active Directory?

Yes. Keycloak federates LDAP and Active Directory natively and can broker other identity providers, making it well suited to workforce identity scenarios.

Can Keycloak be self-hosted or run on-premise?

Yes. Keycloak runs on-premise, in your own cloud, or as a managed service — a key advantage over OneLogin's cloud-only model for data-residency and compliance.

See how much you'd save.

A 30-minute demo and a custom proposal — keyed to your current OneLogin contract — usually beats your renewal.