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Caluma

Free plan APISelf-hostedWeb

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Caluma's own site

What Caluma is

Caluma is a collaborative form and workflow builder for digitizing routine business processes. Business users can configure complex forms without technical knowledge, including forms for applications and certifications. Fine-grained permissions support processes involving different users and roles, while declarative business processes can handle processing and decision-making. Caluma is available through web, API, and self-hosted options. Its GraphQL API can query and change form and workflow entities, and GraphQL and OpenID Connect support integration with modern web applications. The software is customizable, and its client can use shareable components. Developers can work with their preferred tools without needing an administrative interface. The code is released under GPL-3.0-or-later, and the Open-source Caluma plan is free. Documentation recommends running it as a dedicated service, with Docker and Docker Compose listed for the quickstart. Users seeking technical help can contact a Caluma Supporter.

Who it suits

Caluma suits organizations digitizing form-based processes that involve multiple roles, as well as business users who need to configure forms themselves. It also fits developers looking for a customizable, self-hostable workflow tool with a GraphQL API.

What it does well

  • Business users can configure complex forms without technical knowledge.
  • Fine-grained permissions accommodate different users and roles.
  • GraphQL API queries and changes forms and workflows.
  • Code is released under GPL-3.0-or-later.
  • Web, API, and self-hosted options are listed.

What to know first

  • Quickstart lists Docker and Docker Compose requirements.
  • Documentation recommends running it as a dedicated service.
  • Technical support requires contacting a Caluma Supporter.

Limits

The Open-source Caluma plan costs nothing and is described as open source, usable at no charge, and customizable. The documented self-hosted quickstart requires Docker and Docker Compose.

Plans

PlanBilled and limitsPrice
Open-source Caluma100% open source · usable at no charge · customizableFree

As caluma.io lists them, read 3 Oct 2026. The maker's own page has the final word.

Getting started

  1. Visit https://caluma.io/ and review the documentation.
  2. Choose web, API, or self-hosted use.
  3. For the documented self-hosted quickstart, prepare Docker and Docker Compose.
  4. Run Caluma as a dedicated service.
  5. Contact a Caluma Supporter for help with technical details.

Verdict

Caluma combines configurable forms, role-based permissions, and declarative workflows in an open-source package. Its dedicated-service recommendation and quickstart requirements matter when choosing a deployment approach.

Questions

Does Caluma have a free plan?

Yes. The Open-source Caluma plan costs nothing.

Can Caluma be self-hosted?

Yes. Caluma is available as self-hosted software, and its documentation recommends running it as a dedicated service.

What does Caluma use to connect with web applications?

It uses GraphQL and OpenID Connect. Its GraphQL API can query and change form and workflow entities.

Is Caluma open source?

Yes. Its code is released under GPL-3.0-or-later.

What is needed for the self-hosted quickstart?

The documentation lists Docker and Docker Compose as requirements.

Where can users get technical help?

The Caluma site says users can contact a Caluma Supporter for help with technical details.

Facts from Caluma's own pages

API
The documentation describes a GraphQL API for querying and mutating form and workflow entities. · github.com, 3 Oct 2026
Business users
The form builder lets business users configure complex forms without technical knowledge. · caluma.io, 3 Oct 2026
Customization
Caluma is customizable, and its client can use shareable components. · caluma.io, 3 Oct 2026
Developer use
Developers can use their preferred tools without needing an administrative interface. · caluma.io, 3 Oct 2026
Forms
Users can dynamically create complex forms, including forms for applications and certifications. · caluma.io, 3 Oct 2026
Founded
2000 · caluma.io, 28 Sept 2026
Hosting
The documentation recommends running Caluma as a dedicated service and lists Docker and Docker Compose as requirements for its quickstart. · github.com, 3 Oct 2026
License
The documentation says the code is released under GPL-3.0-or-later. · github.com, 3 Oct 2026
Permissions
Caluma supports fine-grained permissions for processes involving different users and roles. · caluma.io, 3 Oct 2026
Purpose
Caluma is a collaborative form and workflow builder for digitizing day-to-day business processes. · caluma.io, 3 Oct 2026
Standards
Caluma uses GraphQL and OpenID Connect to support integration with modern web applications. · caluma.io, 3 Oct 2026
Support
The Caluma site says users who want help with the technical details can contact a Caluma Supporter. · caluma.io, 3 Oct 2026
Workflows
Caluma lets users implement declarative business processes for processing and decision-making. · caluma.io, 3 Oct 2026

Where Caluma stands on Freedom251

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