Can I open-source Brilliant?
YES · mature open-source replacementYes. Anki (22k stars), Moodle (7k stars), Oppia (7k stars) are mature open-source replacements for Brilliant — self-host in one command and stop paying $30/mo.
People still pay for Brilliant because the learning loop is buildable, while trusted curriculum, instructors, feedback, credentials, and community are not. The recurring cost buys curriculum quality, assessment validity, content rights, spaced-repetition tuning, speech models, sync, moderation, and support, not just the visible interface.
xexpert curriculum, interactive problem library, pedagogy, apps, and content rights
xlicensed course catalog
xexpert curriculum
xhuman feedback
xlarge learner network and certification
These projects already replace it, free.
MMoodleHosts authored activities, quizzes and progress, although the actual interactive pedagogy still has to come from you.open source↗OOppiaAuthors branching interactive explorations that respond to wrong answers instead of merely displaying the solution.open source↗EeXeLearningA desktop lesson authoring tool for interactive exercises, games, equations and quizzes, with decidedly public-sector aesthetics.open source↗all 5 open-source alternatives to Brilliant →· no votes, no pay-to-list · just what's real
Brilliant pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| free | $0/user | $0/user | First 2 levels of every course; up to 2 lessons/day; sequential progress; occasional ads |
| premium individual | $30/user | $20/user | Unlimited lessons and all levels across 40+ courses; no ads; jump ahead; Koji tutoring |
| premium family | — | $40 | Up to 6 seats; each member gets a separate Premium account; all 40+ courses |
| premium group | — | $11.33/user | 3–50 seats; starts at 3 seats for $33.99/month equivalent; each extra seat $10.10/month |
free tierFirst 2 levels of every course and up to 2 lessons/day; sequential progress; occasional ads
billingIndividual monthly + annual; Family annual; Group annual only; subscriptions auto-renew
hidden costsGroup plan has a 3-seat minimum; extra seats cost $10.10/month each and a full group cannot add seats mid-term, capacity can be increased at renewal.
verified 2026-08-12 · source ↗
Can I open-source Brilliant?
Yes. Moodle replaces Brilliant today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.
How much does Brilliant cost?
Brilliant costs about $30/month (Premium Individual, checked 2026-08-12), which is $360 per year. That's what you save by replacing it with open source.
What do I lose by replacing Brilliant?
Honestly: expert curriculum, interactive problem library, pedagogy, apps, and content rights; licensed course catalog; expert curriculum; human feedback; large learner network and certification. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Brilliant?
Yes: Moodle (Hosts authored activities, quizzes and progress, although the actual interactive pedagogy still has to come from you.) Oppia (Authors branching interactive explorations that respond to wrong answers instead of merely displaying the solution.) eXeLearning (A desktop lesson authoring tool for interactive exercises, games, equations and quizzes, with decidedly public-sector aesthetics.) All 5 curated open-source alternatives are at caniopensourceit.online/brilliant/alternatives.