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Developer Tools · head to head

Keycloak vs Lovable

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Free plan
Yes
Full reviewWebsite
Lovable logo

Lovable

Technology

Build software by prompting

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Keycloak requires self-hosted deployment and operational expertise to install, configure and maintain; Lovable credit-metered rather than unlimited: Free plan gets 5 build credits/day capped at 30/month, plus 20 cloud-hosting credits/month and 4 AI-feature credits/month
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Keycloak and Lovable actually diverge.

Attributes where Keycloak and Lovable differ
AttributeKeycloakLovable
Pricing modelopen-sourceUnknown
PlatformsSelf-hosted, Docker, Kubernetes, Linux, Windows, APIWeb
CategoryDeveloper ToolsTechnology
FoundedUnknown2023

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Keycloak

Nothing recorded that Lovable does not also cover.

Only in Lovable

  • Natural language programming
  • Full application generation
  • Real-time development
  • AI pair programming
  • Multi-technology support
  • Automated testing
  • Deployment assistance
  • Code optimization

What people use each for

The jobs each tool is most often brought in to do.

Keycloak

  • Organisations requiring self-hosted identity infrastructure for compliance or data residencynot Lovable
  • Companies with existing LDAP/Active Directory systems needing federated authenticationnot Lovable
  • Open-source projects and communities requiring free IAM without licensing costsnot Lovable
  • Enterprises building custom identity workflows requiring fine-grained authorisationnot Lovable
  • Teams with sufficient operational expertise to manage infrastructurenot Lovable

Lovable

  • SaaS and business apps: subscription products, customer dashboards, admin panelsnot Keycloak
  • Consumer community and content platformsnot Keycloak
  • Marketplaces: booking tools and storefrontsnot Keycloak
  • Internal tools: workflow tools and operational dashboardsnot Keycloak
  • Marketing landing pages and campaign sitesnot Keycloak

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Keycloak

  • Requires self-hosted deployment and operational expertise to install, configure and maintain
  • No managed cloud option provided by Red Hat; organisations must operate infrastructure themselves or use third-party distributions
  • Clustering and high-availability configurations require additional operational knowledge
  • Community support only; commercial support requires third-party vendors or distributions

Lovable

  • Credit-metered rather than unlimited: Free plan gets 5 build credits/day capped at 30/month, plus 20 cloud-hosting credits/month and 4 AI-feature credits/month
  • Credits expire: monthly plan credits expire after 2 months unused, annual-plan credits expire 1 month after the annual period ends, and all credits are non-refundable
  • Not open source; only the legacy precursor CLI gpt-engineer is open source (MIT), and that repo was archived read-only on 2026-04-22
  • Hosting is free only for smaller apps; significant traffic or size draws additional charges from the credit balance

Pricing, plan by plan

Keycloak

Free
  • Open-sourceFree
    • Full platform functionality
    • Self-hosted deployment
    • Community support

Lovable

Free

No published plan breakdown. See the Lovable review.

Which should you pick?

Choose Keycloak if

  • You want to start without paying.
  • You work on Self-hosted, Docker, Kubernetes, Linux, Windows, API.
Keycloak review

Choose Lovable if

  • You need natural language programming.
  • You want to start without paying.
  • You also want full application generation.
Lovable review

Questions people ask

Is Keycloak or Lovable better?
Neither clearly leads. Keycloak starts at Free and Lovable at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or Lovable?
Keycloak starts at Free and Lovable at Free.
Does Keycloak or Lovable run on more platforms?
Keycloak runs on Self-hosted, Docker, Kubernetes, Linux, Windows, API. Lovable runs on Web.
Can I use Keycloak for free?
Both have a free tier, so you can try either at no cost before committing.
What is Keycloak best used for?
Keycloak is most often used for organisations requiring self-hosted identity infrastructure for compliance or data residency, companies with existing ldap/active directory systems needing federated authentication, open-source projects and communities requiring free iam without licensing costs, enterprises building custom identity workflows requiring fine-grained authorisation. Of those, organisations requiring self-hosted identity infrastructure for compliance or data residency and companies with existing ldap/active directory systems needing federated authentication are not what Lovable is typically brought in for.
What can Keycloak do that Lovable cannot?
Lovable covers Natural language programming, Full application generation, Real-time development, AI pair programming.

Answered from the vendors’ own pages

Keycloak: What protocols does Keycloak support?

Keycloak supports OpenID Connect, OAuth 2.0 and SAML 2.0 protocols for authentication and authorisation.

Source
Lovable: What is included in Lovable's free plan?

The free plan includes 5 build credits per day (up to 30 per month), 20 Cloud credits per month, and 4 AI feature credits for trying features in apps. All plan members can access unlimited workspace members.

Source
Keycloak: Can Keycloak integrate with existing user directories?

Yes. Keycloak supports user federation with LDAP and Active Directory systems, allowing organisations to leverage existing user directories.

Source
Lovable: How do credits work in Lovable's paid plans?

Lovable uses a credit-based model where costs depend on monthly credit allocation rather than per-seat pricing. Build tasks consume variable credits ranging from 0.50 to 1.70 credits depending on complexity, or 1 credit per message in Plan Mode.

Source
Keycloak: Is Keycloak free?

Yes. Keycloak is fully open-source and free to deploy and use. No licensing fees are required.

Source
Lovable: Do credits expire in Lovable?

Yes, credit expiration depends on the plan: monthly plan credits expire 2 months after issuance, annual plan credits expire 1 month after the annual period ends, and top-up credits expire 12 months from purchase. Daily grants expire daily with no rollover.

Source
Lovable: Are there additional costs for app hosting on Lovable?

Most small and new apps run free under included grants, but larger apps with significant traffic incur charges against the credit balance.

Source
Lovable: Does Lovable offer educational discounts?

Yes, a student discount is available with a valid university email.

Source
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