Brilliant costs $30/mo.
These cost $0.
5 free alternatives to Brilliant, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.
Brilliant vs Free Alternatives Matrix
Quick side-by-side comparison · $0/mo vs $30/mo
| Alternative | Type | License | Where It Runs | Stars | Head-to-Head |
|---|---|---|---|---|---|
| Moodle | open source | GPL-3.0+ | Self-host | ★ 7.3k | Brilliant vs Moodle → |
| Oppia | open source | Apache-2.0 | Local or hosted | ★ 6.8k | Brilliant vs Oppia → |
| eXeLearning | open source | AGPL-3.0 | Local or hosted | ★ 138 | Brilliant vs eXeLearning → |
| Lumi | free | AGPL-3.0 | Local | ★ $0 forever | Brilliant vs Lumi → |
| GeoGebra | free | EUPL-1.2 | Local or hosted | ★ $0 forever | Brilliant vs GeoGebra → |
The picks
3 open source · 2 free to use · ranked by fit
- 01
Moodle
open sourceGPL-3.0+Self-host7.3kaug 2026Hosts authored activities, quizzes and progress, although the actual interactive pedagogy still has to come from you.
The catch vs BrilliantIt is an LMS shell rather than Brilliant's interactive pedagogy, so the author must build the lessons, feedback and activities from scratch.
Install, platforms & data +
- platforms
- mobilewebself-hostedself-host, real ops
- install
- Install PHP and a supported database and web server, create the moodledata directory, then run the web installer and cron
- setup
- Web hosting, PHP and database compatibility, cron, security hardening and upgrades all belong to the operator
- your data
- Course records and activity data live in a relational database; uploaded files, caches and sessions live under moodledata, with .mbz course backups
- checked
- 2026-08-11
- 02
Oppia
open sourceApache-2.0Local or hosted6.8kaug 2026Authors branching interactive explorations that respond to wrong answers instead of merely displaying the solution.
The catch vs BrilliantCreating responsive branches is manual, and the result does not match Brilliant's broad authored catalog or production-quality interactive visuals.
Install, platforms & data +
- platforms
- webself-hostedthey host it
- install
- Use Oppia.org directly, or deploy the Python and Angular application on a Google App Engine-style stack
- setup
- None on Oppia.org; self-hosting is a developer-grade Google App Engine deployment
- your data
- Explorations, skills, stories, questions and learner progress live in Oppia's hosted Google Cloud Datastore and Storage, or the equivalent self-hosted deployment
- checked
- 2026-08-11
- 03
eXeLearning
open sourceAGPL-3.0Local or hosted138aug 2026A desktop lesson authoring tool for interactive exercises, games, equations and quizzes, with decidedly public-sector aesthetics.
The catch vs BrilliantIt is an authoring and export tool, not Brilliant's polished ready-made adaptive STEM curriculum, guided learning path or motivation system.
Install, platforms & data +
- platforms
- desktopwebself-hostedone-click install
- install
- Desktop installer or local browser PWA; the Team Edition is separately self-hosted
- your data
- Editable lessons live as .elpx project files; output exports as web pages, EPUB3 or SCORM/LMS packages, while Team Edition uses server storage
- checked
- 2026-08-11
- 04
Lumi
freeAGPL-3.0LocalA free desktop H5P editor for interactive lessons, simulations and quizzes; content quality remains your problem.
The catch vs BrilliantIt edits standalone H5P activities but supplies no sequenced curriculum, adaptive guided path or ready-made STEM library.
Install, platforms & data +
- platforms
- desktopone-click install
- install
- Windows Store or EXE, macOS Intel or Apple-silicon DMG, or Linux Snap, AppImage, deb or pacman package
- setup
- Windows may show SmartScreen, and current macOS builds have had unsigned or damaged-app Gatekeeper reports
- your data
- Interactive content lives in local .h5p packages and can be exported as H5P, standalone HTML or SCORM
- checked
- 2026-08-11
- 05
GeoGebra
freeEUPL-1.2Local or hostedExcellent interactive mathematics authoring and practice, but it stops being Brilliant once the science is not mathematical.
The catch vs BrilliantIt is excellent for interactive mathematics but becomes a much weaker substitute once the science is not mathematical, and it lacks Brilliant's guided curriculum.
Install, platforms & data +
- platforms
- desktopmobilewebthey host it
- install
- Use the hosted web apps or install native desktop or mobile apps
- your data
- Activities can be saved locally as .ggb ZIP/XML files or to a GeoGebra cloud account as online resources
- checked
- 2026-08-11
Frequently Asked Questions
Direct answers · Brilliant open-source replacements
What is the best free alternative to Brilliant?+
The top free alternative to Brilliant is Moodle (open source, GPL-3.0+). Hosts authored activities, quizzes and progress, although the actual interactive pedagogy still has to come from you. Other popular Brilliant replacements include Oppia, eXeLearning, Lumi.
Can I self-host a free replacement for Brilliant?+
Yes. Of the 5 free alternatives to Brilliant, 4 can be self-hosted on your own server or local machine: Moodle (GPL-3.0+), Oppia (Apache-2.0), eXeLearning (AGPL-3.0), GeoGebra (EUPL-1.2).
How much does switching from Brilliant to a free alternative save?+
Brilliant starts at $30/month per seat ($360/year). Switching a 5-person team to a free alternative like Moodle saves $1,800 per year in software subscription fees.
Should I vibe-code or build my own Brilliant clone from scratch?+
Our build verdict for Brilliant is NOT REALLY (use a free alternative, save the tokens). A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Brilliant, build interactive practice around user-authored math and science lessons. The hard boundary is expert curriculum, interactive problem library, pedagogy, apps, and content rights, plus content, pedagogy, and network.
What is the catch when switching from Brilliant to Moodle?+
It is an LMS shell rather than Brilliant's interactive pedagogy, so the author must build the lessons, feedback and activities from scratch.
