Open Source LMS Comparison: Moodle, Open edX, Canvas, ILIAS, Sakai, Chamilo, OpenEduCat

Moodle. Moodle Pty Ltd reports 400M+ users and 150K+ registered sites, with 1,800+ community plugins in the Plugins Directory and a Moodle Partner network across 80+ countries. No other open-source LMS is close on community size. This matters for plugin availability, expertise hiring, and conference networking (MoodleMoot events globally), but does not automatically mean Moodle is the right fit for every institution — community size is one factor among many.

For K-12 schools, the question is rarely LMS-only — it is LMS plus SIS plus parent communication plus fees. Moodle handles the LMS part well but K-12 features feel bolted-on (the platform was built for higher education). OpenEduCat is built K-12-native and integrates LMS with SIS, fees, and parent app on one database. Canvas LMS Cloud (commercial SaaS) has strong K-12 adoption in US but the open-source Canvas LMS self-host is operationally heavy for K-12 IT teams. Most K-12 schools choosing open-source land on Moodle (LMS-only) plus a separate SIS, or OpenEduCat (consolidated platform).

ILIAS is the standard answer. German federal agencies, the Bundeswehr (German military), Swiss federal training programs, and regulated industries across the German-speaking world run ILIAS specifically because it is built GDPR-by-design, holds deep SCORM 1.2/2004 and AICC certifications for audit-grade compliance contexts (aviation, medical, defence training), and is stewarded by a European non-profit association rather than a commercial company headquartered elsewhere. Moodle is also viable for European public sector but ILIAS is purpose-built for this context.

Start with three filters: (1) Scope — do you need LMS-only or LMS plus SIS plus fees plus parent app? LMS-only points to Moodle, Open edX, Canvas, Sakai, ILIAS, or Chamilo. Integrated points to OpenEduCat. (2) Operational complexity tolerance — do you have a dedicated Java/Ruby/Python ops team or just a part-time LMS admin? High complexity is Open edX and Canvas. Medium is Sakai and ILIAS. Lower is Moodle and OpenEduCat (and Chamilo at small scale). (3) Community size — Moodle has the deepest community by far. Smaller platforms compensate with vendor-managed hosting (Open edX via Edly/eduNEXT, OpenEduCat via partners). Pilot the top 2 candidates with one course before committing.

Not exactly. Canvas LMS open-source (canvas-lms repository) is AGPLv3 and contains the core LMS functionality. Canvas Cloud is Instructure's commercial SaaS offering on top of that core, with additional features (Studio video tools, Mastery Connect outcomes, Catalog course storefront, Impact analytics, Elevate K12 platform) that are not all in the open-source repository. Self-hosting Canvas LMS open-source is operationally heavier than running Canvas Cloud — you need PostgreSQL, Redis, Elasticsearch, RabbitMQ, and multiple Ruby on Rails services. Most institutions wanting Canvas UX choose Canvas Cloud; self-host is for institutions with strong DevOps and specific reasons to control the deployment.

Total cost of ownership depends on institution size and IT capability. At 500-2,000 student scale, commercial cloud LMS (Canvas Cloud, Schoology, D2L Brightspace) often lands at lower TCO than self-hosting open-source because hosting plus admin time exceeds the SaaS fee. At 5,000-50,000 student scale, open-source self-hosted typically lands 40-60% lower TCO because per-student SaaS fees scale linearly while hosting costs scale logarithmically. The break-even point varies by institution; the strategic factors (source-code ownership, data residency, customization freedom) are usually as important as the cost factor.

Moodle Mobile is the most mature mobile app among open-source LMS options — official iOS and Android apps, offline content download, push notifications. Canvas LMS has strong mobile apps but the open-source version uses the same apps as Canvas Cloud (Instructure-developed). OpenEduCat's parent and student apps are mobile-first and consolidate LMS-plus-SIS-plus-fees views in one login. ILIAS has a mobile app primarily for content consumption. Open edX, Sakai, and Chamilo have weaker mobile stories. Mobile UX is increasingly important — evaluate by trying the apps in the pilot.

Most open-source LMS platforms support Common Cartridge (IMS standard) for course import/export, plus QTI for question-bank exchange and SCORM for content packages. Moodle exports MBZ (its native backup format) which migrates to OpenEduCat via a dedicated migration tool. Open edX export is OLX format. Canvas export is Canvas Course Export (.imscc) which is essentially Common Cartridge. Cross-platform migration of course content is achievable; migration of student data (enrolment, grades, submissions) is typically a snapshot summary rather than a full history. Plan a phased migration with parallel running rather than a hard cutover.

All seven (Moodle, Open edX, Canvas LMS, ILIAS, Sakai, Chamilo, OpenEduCat) are actively maintained with releases in the past 12 months at minimum. Moodle releases major versions roughly every 6 months. Open edX has a structured release cadence under the Axim Collaborative. Canvas LMS releases continuously. ILIAS releases a major version annually. Sakai's cadence has slowed but Apereo Foundation still releases. Chamilo and OpenEduCat both release regularly. The relevant filter is not "is it maintained" but "is it growing in mindshare and ecosystem investment" — that filter favours Moodle, Open edX, Canvas, and OpenEduCat over Sakai and Chamilo for new deployments.