What is Brilliant?

Brilliant is for students, adults, parents, homeschool families, and educators who want to build problem-solving skills in math and coding. Readiness matters more than age: learners who are comfortable adding, subtracting, multiplying, and dividing are ready for Brilliant’s main course curriculum, which begins with fractions, decimals, and early pre-algebra. Most children are ready around age 10, while some younger learners with strong arithmetic foundations may also be ready.

For younger learners, Brilliant also offers a separate free K–5 Math Practice library beginning at kindergarten.

Learn more about who Brilliant is for.

Koji is Brilliant’s digital tutor. It is built into most courses and can see the lesson and interactive problem a learner is working on. Koji guides the learner through the reasoning step by step instead of simply revealing the answer. Free users receive a limited preview; Premium subscribers receive full access. Course coverage continues to expand.

Learn how Koji works.

Learners build understanding by solving interactive problems and exploring visual models. Lessons provide explanations and immediate feedback as learners work. People can choose individual courses or follow Learning Paths that organize related courses into a suggested sequence.

Learn how Brilliant teaches math or read about Learning Paths.

Brilliant is fully accredited by the Accrediting Commission for Schools, Western Association of Schools and Colleges (ACS WASC). It is not a degree-granting school and does not award diplomas, official transcripts, course-completion certificates, academic degrees, professional certifications, or transferable course credit.

Learn what Brilliant’s accreditation means and read the certificate and credit policy.

Brilliant supports learners with schoolwork, test preparation, and homeschooling. It can be used as a core math or coding resource for some homeschool families and as a supplement for classroom learning or tutoring. Its courses are organized around mathematical and computational ideas rather than as a one-to-one copy of every school curriculum or exam syllabus. Families and educators should compare Brilliant’s coverage with their local standards, course requirements, labs, assessments, and recordkeeping needs.

Read the homeschooling guide or explore Brilliant’s Common Core alignment.

Parents with a linked learner account can view activity, practice accuracy, active courses, recent lessons, progress, recently learned skills, and summarized categories of Koji use. The dashboard does not expose the learner’s Koji conversation content.

Learn about the parent progress dashboard.

Brilliant is available in web browsers and through its official iPhone and iPad app and Android app. Progress syncs across supported devices. An internet connection is required; Brilliant lessons are not available for offline use.

See platform requirements.

Brilliant’s deepest subject areas are math and coding. Its course catalog also covers data science, science, technology, logic, AI, and quantitative problem solving. Topics range from arithmetic, algebra, geometry, and calculus to Python, algorithms, statistics, physics, neural networks, and large language models. Course availability changes as the catalog evolves.

See the current subject overview or browse all courses.

Brilliant teaches programming fundamentals, Python, algorithms, data structures, debugging, computational reasoning, and how AI works. Its Coding Skills That Matter in the Age of AI framework also explains the broader competencies needed to build reliable software with AI, including specification, incremental development, verification, security, and abstraction.

Explore coding and AI resources or review Brilliant’s coding coverage and gaps.

Yes. Free users can access Brilliant’s course content with daily limits. They receive two keys per day; each key unlocks one lesson or practice set. Free users move through courses sequentially, see occasional ads, and receive a limited preview of Koji.

The separate K–5 Math Practice library is free and does not require an account.

Compare Free and Premium.

Premium includes unlimited access to lessons and practice sets, the ability to jump to any lesson, an ad-free experience, and full access to Koji. Individual annual, individual monthly, and annual Family plans may be available. A Family plan supports up to six members, each with a separate account.

See current Premium options and prices or review Premium features.

Sometimes. Premium free-trial promotions are offered to eligible users, but availability varies by account, platform, and timing. When a trial is available, review its billing and cancellation terms before starting it. Users on a free trial can cancel anytime.

See current free-trial information.

Yes. A Family plan lets you share Premium with up to five other people—six members total—with each person using a separate account. A gift plan lets you purchase a separate Premium subscription for someone else without adding them to your plan.

Choose a Family plan for ongoing shared access, or a gift plan to send Premium directly to one recipient.

Web subscriptions can be managed from Subscription Settings. Subscriptions purchased through Apple or Google Play must be managed through the corresponding app store. For account, billing, or technical help, email support@brilliant.org.

Read the cancellation instructions or contact Brilliant support.

Eligible K–12 educators and their students may receive access through the grant-funded Brilliant for Educators program. Eligibility, features, and availability can change.

See current educator eligibility or visit Brilliant for Educators.