Freedom251 › Content Management Systems
Sulu
by Sulu
What Sulu is
Sulu is an open-source content management system for PHP developers, built on Symfony and released under the MIT license. It supports managing content, multiple websites, and translations. Its Webspaces technology provides a way to configure and manage multisite setups, while its support for traditional, headless, and hybrid approaches keeps content separate from presentation.
Teams can use editorial workflows, custom user roles, and custom content types, along with navigation, task automation, shareable preview links, and form management. Sulu also includes SEO capabilities and a media library. Its API can connect with CRM and marketing automation tools such as HubSpot and Salesforce, as well as search engines. The maker describes Sulu as deployment agnostic, with options ranging from single-server scripts to horizontally scalable orchestration such as Kubernetes. Optional two-factor authentication methods include email, authenticator apps, backup codes, and trusted devices. Sulu offers developer documentation, a free Slack channel, and GitHub issue reporting; its core team also offers support, professional services, consulting, training, and custom development. The CMS is free and intended for self-hosting. Sulu was founded in 2018 and is headquartered in Dornbirn, Austria.
Who it suits
Sulu is suited to PHP developers and teams that want an open-source CMS they can self-host and adapt to different content structures. Its multilingual, multisite, editorial, and deployment options may also fit agencies managing multiple client implementations.
What it does well
- Open-source CMS released under the MIT license.
- Supports multiple websites and multilingual content management.
- Offers traditional, headless, and hybrid CMS approaches.
- Includes editorial workflows, custom roles, and content types.
- API connects with CRM and marketing automation tools.
- Optional two-factor authentication includes several methods.
What to know first
- The listed platform type is self-hosted.
- Sulu is built for PHP developers on Symfony.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Sulu CMS | Open-source CMS · MIT license | Free |
As sulu.io lists them, read 12 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the Sulu website.
- Use the open-source Sulu CMS, listed as free.
- Plan a self-hosted deployment using a single-server script or orchestration approach.
- Consult the developer documentation to get started.
- Use the free Slack channel or GitHub issue reporting for community support.
Verdict
Choose Sulu if you want a free, MIT-licensed CMS with multilingual and multisite capabilities, flexible content presentation, and deployment options. It is a less direct fit if you do not want a self-hosted CMS or are not working in its PHP and Symfony context.
Questions
Is Sulu free?
Yes. The listed Sulu CMS plan is free, and the pricing note identifies it as open source.
Is Sulu open source?
Yes. Sulu GmbH's CMS is released under the MIT open-source license.
Can Sulu manage multiple websites and languages?
Yes. It supports multiple websites and translations, and Webspaces can be used to configure and manage multisite setups.
Can Sulu be used headlessly?
Yes. Sulu supports traditional, headless, and hybrid approaches, with content separated from presentation.
How can Sulu be deployed?
Sulu is deployment agnostic. The maker describes options from single-server scripts to horizontally scalable orchestration such as Kubernetes.
Who makes Sulu?
Sulu is made by Sulu, founded in 2018 and headquartered in Dornbirn, Austria.
Facts from Sulu's own pages
- Audience
- Sulu describes itself as a CMS for PHP developers and highlights agency workflows and management of multiple client implementations for Sulu.ai. · sulu.io, 12 Oct 2026
- CMS modes
- Sulu supports traditional, headless, and hybrid approaches with content separated from presentation. · sulu.io, 12 Oct 2026
- Content management
- It supports managing content, multiple websites, and translations. · sulu.io, 12 Oct 2026
- Custom content types
- Yes · sulu.io, 22 Sept 2026
- Custom user roles
- Yes · sulu.io, 22 Sept 2026
- Deployment
- Sulu is deployment agnostic, with the site describing single-server scripts and horizontally scalable orchestration such as Kubernetes. · sulu.io, 12 Oct 2026
- Editorial workflows
- Yes · sulu.io, 22 Sept 2026
- Features
- The site lists navigation, task automation, shareable preview links, form management, and SEO capabilities. · sulu.io, 12 Oct 2026
- Founded
- 2018 · sulu.io, 28 Sept 2026
- Headquarters
- Dornbirn, Austria · sulu.io, 28 Sept 2026
- Integrations
- Sulu’s API can integrate with CRM and marketing automation tools such as HubSpot and Salesforce, as well as search engines. · sulu.io, 12 Oct 2026
- Languages
- Sulu includes multilingual functionality and supports managing translations. · sulu.io, 12 Oct 2026
- License
- The site identifies Sulu GmbH’s CMS as released under the MIT open-source license. · sulu.io, 12 Oct 2026
- Media library
- Yes · sulu.io, 22 Sept 2026
- Multilingual content
- Yes · sulu.io, 22 Sept 2026
- Multisite
- Sulu’s Webspaces technology supports configuring and managing multisite setups. · sulu.io, 12 Oct 2026
- Platform type
- self_hosted · sulu.io, 22 Sept 2026
- Product
- Sulu is an open-source CMS for PHP developers built on Symfony. · sulu.io, 12 Oct 2026
- Security
- Sulu’s documentation describes optional two-factor authentication methods including email, authenticator apps, backup codes, and trusted devices. · docs.sulu.io, 12 Oct 2026
- SEO tools
- Yes · sulu.io, 22 Sept 2026
- Services
- Sulu offers consulting, training, and custom development services. · sulu.io, 12 Oct 2026
- Support
- Sulu offers a free Slack channel, developer documentation, and GitHub issue reporting, and its core team offers support and professional services. · sulu.io, 12 Oct 2026
Where Sulu stands on Freedom251
- Content Management Systems#24 of 165