There are hundreds of math websites. Most of them are terrible — cluttered with ads, stuck in 2010-era design, or "free" in the way that means "free for 3 problems, then $14.99/month." Finding websites that are genuinely free, genuinely useful, and don't require a computer science degree to navigate is harder than it should be.
This is the no-nonsense list. Every website here is free to use for the core features students actually need. We've noted where premium tiers exist so you know what you're getting into. And we've organized them by what they're best for — because a website that's great for learning new concepts might be terrible for practice, and vice versa.
Best Free Math Websites for Practice
These sites are built for doing math problems — building fluency through repetition and getting immediate feedback.
1. Infinilearn
What it is: A math RPG where students battle monsters by solving Common Core-aligned problems.
Best for: Middle school students (grades 6-8) who need adaptive practice in a format they'll actually use voluntarily.
Infinilearn turns math practice into a fantasy RPG. Students explore the world of Numeria, fight monsters, complete quests, and level up their character — all by solving math problems. The adaptive system adjusts to each student's level and targets their specific weak areas. Every problem is aligned to Common Core standards for grades 6-8.
What makes it stand out on a list of free math websites is that it's genuinely, completely free. Not "free with ads." Not "free for the first week." Not "free but the good stuff costs money." Every feature, every area of the game, every reward is available to every student at no cost. The parent dashboard and teacher dashboard are also free.
Actually free: Yes, completely. No premium tier exists.
2. Khan Academy
What it is: A complete online learning platform with video lessons and practice exercises.
Best for: Learning new concepts, structured course-style study, filling knowledge gaps.
Khan Academy is the gold standard for free online math education. The video lessons cover everything from basic arithmetic through calculus, and the practice exercises are well-designed with hints and step-by-step solutions. The mastery system tracks progress and prevents skipping ahead.
For students who need to learn or relearn a concept (not just practice it), Khan Academy is unmatched. "I don't understand how to solve two-step equations" → watch the Khan Academy video, do the practice, build mastery. It's the closest thing to a free online tutor that exists.
Actually free: Yes, completely. Khan Academy is a nonprofit.
3. IXL
What it is: A comprehensive drill platform organized by skill and standard.
Best for: Targeted practice on specific skills, diagnostic assessment.
IXL breaks math into hundreds of granular skills, each with its own adaptive practice set. The diagnostic tool maps exactly where a student is relative to grade-level expectations. The analytics are among the best available for identifying specific gaps.
Actually free: Partially. You can practice any skill, but free accounts are limited to a small number of problems per day. The full experience requires a subscription ($9.95-19.95/month). Worth noting because IXL markets itself heavily but the free version is very limited.
4. Math-Aids.com
What it is: A worksheet generator that creates printable math worksheets by topic.
Best for: Generating custom practice worksheets for specific topics. Parents who want printable homework. Teachers who need quick supplemental materials.
Math-Aids generates randomized worksheets with answer keys for virtually every math topic from grades 1 through algebra. You select the topic, difficulty level, and number of problems, and it creates a printable PDF instantly. It's not flashy, but it's incredibly practical.
Actually free: Yes, completely. Supported by ads on the site, but the worksheets themselves are clean.
Best Free Math Websites for Learning Concepts
5. Desmos
What it is: A graphing calculator and math activity platform.
Best for: Graphing, exploring functions and transformations, interactive classroom activities.
Desmos is the best free graphing tool available. The calculator is used on many state standardized tests, so students should be familiar with it regardless. Beyond graphing, the Activity Builder lets teachers create interactive lessons, and the community library has thousands of pre-built activities.
Actually free: Yes, completely.
6. GeoGebra
What it is: A dynamic geometry and algebra tool.
Best for: Geometry exploration, constructing and manipulating shapes, visualizing algebraic concepts.
GeoGebra is more powerful than Desmos for geometry. Students can construct geometric figures, measure properties, and manipulate them to explore relationships. The algebra view shows equations updating in real time as geometric objects move. It's the best tool available for building geometric intuition.
Actually free: Yes, completely. Open source.
7. Mathway
What it is: A math problem solver that shows step-by-step solutions.
Best for: Checking homework, understanding solution steps, getting unstuck on a specific problem.
Type in a math problem and Mathway solves it and shows the steps. The free version shows the answer; the paid version shows the detailed steps. It's a homework helper, not a practice tool — use it to understand how to solve a type of problem, then practice that type elsewhere.
Actually free: Partially. Basic answers are free. Step-by-step solutions require a subscription ($9.99/month).
Best Free Math Websites for Games
8. Prodigy
What it is: A math RPG with wizard battles.
Best for: Students (grades 1-8) who enjoy collect-and-battle game mechanics.
Prodigy is the most popular math game for kids. The wizard world is engaging, and millions of students have accounts. Teachers can set focus areas. The math content covers a wide range of topics.
Actually free: Partially. You can play and answer math questions for free. But most rewards, items, areas, and features require a premium membership ($9.95/month). The "free" version is increasingly a demo for the paid version.
9. Math Playground
What it is: A collection of browser-based math games and logic puzzles.
Best for: Quick, casual math games. Brain breaks. Short practice sessions.
Math Playground has dozens of math games organized by topic and grade level. They're simple, browser-based, and require no account. The games are basic but fun for short sessions.
Actually free: Yes, with ads. Premium ($9.99/month) removes ads. The free version is fully functional but ad-heavy.
10. CoolMath Games
What it is: A game website with math-themed and logic games.
Best for: Casual games that develop logical thinking. Not direct math practice.
CoolMath Games is hugely popular with students, but let's be honest: most of the games are logic puzzles and strategy games, not direct math practice. Run 3 doesn't teach algebra. That said, the logic games do develop problem-solving skills, and the site is a gateway to math-adjacent thinking for students who otherwise avoid anything labeled "math."
Actually free: Yes, with ads.
How to Choose
The right website depends on what your student needs right now:
- "They need to practice math but won't do worksheets" → Infinilearn (game-based adaptive practice)
- "They don't understand a concept" → Khan Academy (video instruction + practice)
- "They need to graph equations" → Desmos (graphing calculator)
- "They need geometry exploration" → GeoGebra (dynamic geometry)
- "I need printable worksheets" → Math-Aids.com (worksheet generator)
- "They're stuck on one specific problem" → Mathway or Photomath (problem solvers)
- "They just want to play math games casually" → Math Playground (browser games)
Most students benefit from using 2-3 sites in combination: one for practice (Infinilearn), one for learning new concepts (Khan Academy), and one tool for specific needs (Desmos, GeoGebra, or Math-Aids).
The Bottom Line
Free math resources are better than they've ever been. A student with internet access has everything they need to learn and practice middle school math at no cost — as long as they know where to look and which "free" claims to trust. The websites on this list are the real ones. Use them in combination, match the tool to the need, and don't waste time or money on sites that lock essential features behind a paywall.