Developer Tools
Joomla
Open-source PHP CMS with extensions, templates and multilingual tooling.
What it is
Joomla is GPL-licensed open-source content-management software built on PHP and a supported relational database. Core includes publishing, users, access controls and multilingual capabilities, while components, modules, plugins, templates and language packages extend the site; administrators remain responsible for compatible hosting and timely core and extension updates.
Key features
Content publishing
Organizes articles, menus, users and site configuration through the administration interface.
Extension types
Adds functions through components, modules, plugins, templates, packages and languages.
Multilingual content
Supports translated interfaces and separately modeled content languages.
Extension updates
Checks registered update servers and declared Joomla, PHP and database constraints.
Strengths and trade-offs
What works well
- Core publishing system: Manages articles, navigation, users and administrative configuration.
- Extension architecture: Components, modules, plugins, templates and language packages cover different customization roles.
- Multilingual foundation: Distinguishes installed interface languages from content languages.
- Update discovery: Administrator tools can query configured update servers for compatible extension releases.
Where it falls short
- Hosting requirements: Supported PHP, database, web-server modules and memory must match the installed Joomla branch.
- Extension trust: Third-party functionality has its own maintainer, compatibility, update and vulnerability lifecycle.
- Maintenance ownership: A zero-cost core license does not include hosting, backups, upgrades or operational support.
- Update-source dependency: Extension update availability and metadata depend on servers operated by extension developers.
Who it is for
Site owners and agencies wanting a self-hosted extensible CMS and prepared to govern PHP infrastructure and third-party extensions.
Our verdict
Choose Joomla after validating the complete extension and template stack against a supported environment; the core license is free, but safe operation is an ongoing maintenance commitment.
Closest alternatives we track
Same category, ordered by verified starting price.
What we checked
- Public APIOffers a documented API you can build against.No
- Mobile appHas a native app for iOS or Android, not just a mobile website.No
- Open source / self-hostableSource is open and the tool can be run on your own infrastructure.Yes
- SSO (SAML)Supports SAML single sign-on on at least one plan.No
“Not checked” means exactly that — we have not verified it, and we do not guess.
Evidence and freshness
Status: Official sources reviewedReviewed: 2026-08-24
- Joomla Manual — Technical requirements ↗
Checked 2026-08-24 · Supports: PHP matrix, database matrix, web-server matrix, required PHP modules, memory recommendation, supported versus minimum distinction
- Joomla Manual — Extension architecture ↗
Checked 2026-08-24 · Supports: CMS scope, components, modules, plugins, templates, language packages, extension responsibilities
- Joomla Manual — Multilingual ↗
Checked 2026-08-24 · Supports: installed languages, content languages, language files, translation structure, extension localization
- Joomla Manual — Update servers ↗
Checked 2026-08-24 · Supports: extension update discovery, developer-operated update URLs, platform restrictions, PHP and database checks, optional checksums
- Joomla Manual — Security fundamentals ↗
Checked 2026-08-24 · Supports: extension attack surface, core security coverage, access checks, disclosure guidance, maintenance responsibility
- Joomla CMS — Official source ↗
Checked 2026-08-24 · Supports: official source repository, GPL-2.0-or-later license, PHP and database requirement, open-source project, CMS scope
Limit: Official project documentation and repository metadata were reviewed; ToolCompare did not install Joomla, audit extensions or update servers, test upgrades, benchmark hosting, assess editor experience, validate security or calculate implementation cost.