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Developer Tools · head to head

Keycloak vs Trello

Keycloak logo

Keycloak

Developer Tools

Open-source identity and access management server.

From
Free
Free plan
Yes
Visit KeycloakFull review
Trello logo

Trello

Project Management

Organize anything, together

From
Free
Free plan
Yes
Visit TrelloFull review

The short version

  • Keycloak is an open-source IAM platform supporting OpenID Connect, OAuth 2; Trello is a visual collaboration tool.
  • Keycloak is free; Trello starts at $5/user/mo.
  • Where Keycloak falls short: requires self-hosted deployment and operational expertise to install, configure and maintain.
  • Where Trello falls short: free tier limited to 10 boards and 10 collaborators per workspace.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Keycloak and Trello actually diverge.

Attributes where Keycloak and Trello differ
AttributeKeycloakTrello
PlatformsSelf-hosted, Linux, Windows, APIWeb, iOS, Android, Windows, macOS
CategoryDeveloper ToolsProject Management

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: pricing model for Trello, founded for Keycloak.

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 Trello does not also cover.

Only in Trello

  • Kanban boards
  • Cards & lists
  • Drag-and-drop interface
  • Activity feed
  • Due dates & reminders
  • File attachments
  • Comments & mentions
  • Power-Ups ecosystem

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 Trello
  • Companies with existing LDAP/Active Directory systems needing federated authenticationnot Trello
  • Open-source projects and communities requiring free IAM without licensing costsnot Trello
  • Enterprises building custom identity workflows requiring fine-grained authorisationnot Trello
  • Teams with sufficient operational expertise to manage infrastructurenot Trello

Trello

  • Project trackingnot Keycloak
  • Content calendarsnot Keycloak
  • Sales pipelinesnot Keycloak
  • Onboarding processesnot Keycloak
  • Personal task managementnot 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

Trello

  • Free tier limited to 10 boards and 10 collaborators per workspace
  • Free tier automation capped at 250 monthly Butler runs
  • No offline access; web-based platform requires internet connection
  • Advanced views (timeline, table, dashboard) not available on Standard plan
  • SSO only available on Enterprise plan

Pricing, plan by plan

Keycloak

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

Trello

Free
  • FreeFree
    • Up to 10 boards/workspace
    • Up to 10 collaborators
    • 250 monthly Butler automation runs
  • Standard$5/user/mo
    • Unlimited boards
    • Unlimited Power-Ups
    • 1,000 monthly Butler runs
  • Premium$10/user/mo
    • All Standard features
    • Timeline, table, dashboard, calendar views
    • Unlimited automation
  • Enterprise$17.5/user/mo
    • All Premium features
    • Unlimited workspaces
    • SSO and user provisioning

Which should you pick?

Choose Keycloak if

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

Choose Trello if

  • You need kanban boards.
  • You want to start without paying.
  • You work on Web, iOS, Android, Windows, macOS.
  • You also want cards & lists.
Trello review

Questions people ask

Is Keycloak or Trello better?
Neither clearly leads. Keycloak starts at Free and Trello at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keycloak or Trello?
Keycloak starts at Free and Trello at Free.
Does Keycloak or Trello run on more platforms?
Keycloak runs on Self-hosted, Linux, Windows, API. Trello runs on Web, iOS, Android, Windows, macOS.
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 Trello is typically brought in for.
What can Keycloak do that Trello cannot?
Trello covers Kanban boards, Cards & lists, Drag-and-drop interface, Activity feed.

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
Trello: What are the free tier limitations for Trello?

Trello Free supports up to 10 boards per workspace, unlimited cards, 250 monthly Butler automation runs, and up to 10 Power-Up attachments. Limited to 10 collaborators per workspace.

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
Trello: What features are included in the Standard plan?

Standard ($5-6/user/month) adds unlimited boards, custom fields, advanced checklists, 1,000 monthly automation runs, list colors, and calendar view access.

Source
Keycloak: Is Keycloak free?

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

Source
Trello: Does Trello offer SSO and on which plan?

SSO through Atlassian Guard is included only on the Enterprise plan ($17.50/user/month or $210/year per user).

Source
Trello: How many file attachment options are available?

Free tier includes 2 Power-Ups per board, Standard adds unlimited Power-Ups, and Premium and above offer full Power-Up marketplace access with custom integration options.

Source
Trello: Is there offline access to Trello boards?

Trello is a web-based application requiring internet connection. Mobile apps are available for iOS and Android but do not support true offline editing.

Source
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