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Alchemy CMS
What Alchemy CMS is
AlchemyCMS is a free, open source content management framework built as a Ruby on Rails engine. It assembles pages from reusable semantic components while keeping content separate from markup and styling. Core modules cover pages, languages, sites, users, tags, and picture and attachment libraries. Editorial workflows, custom roles, multilingual content, SEO tools, custom content types, and media management are included. ImageMagick and Dragonfly handle on-the-fly image rendering, with cropping controls in the picture library. Rails Russian Doll caching and cache headers support delivery through browsers, proxies, and CDNs. Extensions provide a JSON:API interface, Solidus e-commerce integration, PostgreSQL full-text search, Amazon S3 and Cloudinary storage or delivery, and Sentry, Bugsnag, or AppSignal reporting. Authentication must come from an existing system or the Devise-based alchemy-devise extension. The Open Source plan costs nothing and includes self-hosting and community support. A Cloud plan is listed as coming in 2026 with no price.
Who it suits
AlchemyCMS fits teams wanting a self-hosted Rails framework with control over content structures, workflows, roles, and languages. It is also suited to projects needing listed API and integration extensions.
What it does well
- Free open source plan
- Reusable semantic content components
- Editorial workflows and custom roles
- Multilingual content and SEO tools
- JSON:API and e-commerce extensions
What to know first
- Self-hosting is central to the Open Source plan
- Authentication is not bundled
- Open Source support is community-based
- Cloud pricing is unlisted
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Open Source | Free for any project · Self-host anywhere · Community support · BSD-3 licensed | Free |
| Cloud | tba coming 2026 · Fully managed hosting · Automated updates · Daily backups & monitoring · Managed hosting & CDN · Multiple environments · First level support | On request |
As alchemy-cms.com lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
AlchemyCMS provides a flexible Rails-based foundation with structured content, workflows, media handling, and extensions. Plan for your own authentication and self-hosting responsibilities when evaluating it.
Facts from Alchemy CMS's own pages
- Authentication
- Alchemy does not ship its own authentication; users can integrate an existing system or use the Devise-based alchemy-devise extension. · guides.alchemy-cms.com, 11 Oct 2026
- Authorization
- Alchemy provides member, author, editor, and admin roles and uses CanCanCan for authorization. · guides.alchemy-cms.com, 11 Oct 2026
- Caching
- Alchemy supports Rails Russian Doll caching for rendered page elements and sends cache headers for browsers, proxies, and CDNs. · alchemy-cms.com, 11 Oct 2026
- Content model
- It composes pages from reusable semantic content components while separating content from markup and styling. · guides.alchemy-cms.com, 11 Oct 2026
- Core modules
- Its core modules cover pages, languages, sites, users, tags, and a picture and attachment library. · guides.alchemy-cms.com, 11 Oct 2026
- Custom content types
- Yes · alchemy-cms.com, 23 Sept 2026
- Custom user roles
- Yes · alchemy-cms.com, 23 Sept 2026
- E-commerce integration
- The official alchemy-solidus extension integrates Solidus products, variants, and taxons into Alchemy pages and shares admin navigation and sessions. · guides.alchemy-cms.com, 11 Oct 2026
- Editorial workflows
- Yes · alchemy-cms.com, 23 Sept 2026
- Free plan
- Yes · alchemy-cms.com, 23 Sept 2026
- Headless API
- The official alchemy-json_api extension provides a JSON:API-compliant API for consuming Alchemy content from frontend frameworks. · guides.alchemy-cms.com, 11 Oct 2026
- Image processing
- Alchemy uses ImageMagick and Dragonfly to render images on the fly, with cropping controls in its picture library. · alchemy-cms.com, 11 Oct 2026
- Intended users
- Alchemy describes itself as a framework for ambitious projects and teams that need full control, with content authors working inside structures defined by editors or developers. · alchemy-cms.com, 11 Oct 2026
- Media library
- Yes · alchemy-cms.com, 23 Sept 2026
- Multilingual content
- Yes · alchemy-cms.com, 23 Sept 2026
- Other integrations
- Listed extensions include PostgreSQL full-text search, Amazon S3 and Cloudinary storage or image delivery, and Sentry, Bugsnag, and AppSignal error reporting. · guides.alchemy-cms.com, 11 Oct 2026
- Platform type
- self_hosted · alchemy-cms.com, 23 Sept 2026
- Privacy and update checks
- The default update check can share the Alchemy, Rails, and Ruby versions and origin host with maintainers; the documentation also offers RubyGems-only and disabled options. · guides.alchemy-cms.com, 11 Oct 2026
- Product
- AlchemyCMS is an open source content management framework built as a Ruby on Rails engine. · guides.alchemy-cms.com, 11 Oct 2026
- SEO tools
- Yes · alchemy-cms.com, 23 Sept 2026
- Support
- The self-hosted edition lists community support, while the planned Cloud service lists first-level support. · alchemy-cms.com, 11 Oct 2026
Where Alchemy CMS stands on Freedom251
- Content Management Systems#77 of 165