Last updated: April 29, 2026
There's no shortage of educational resources on the internet — which is exactly the problem. Sorting through apps, websites, YouTube channels, and platforms to find what's actually good (and not just good at marketing itself) takes more time than most families have. So we did the legwork.
This list covers 40 of the most useful free and low-cost educational resources available right now, organized by subject. Most are completely free. A few have paid tiers worth knowing about but not required. One is live and interactive. The rest are self-directed — your kid can use them on their own or alongside whatever curriculum you're already running.
Math
1. Khan Academy
Free | Ages 2-18
Khan Academy covers K-12 math from early counting through calculus, all free. The mastery-based format means kids keep practicing a concept until it clicks before moving on — helpful if your child has gaps from switching curricula or missed a key concept somewhere along the way. The separate Khan Academy Kids app (ages 2-8) covers early math, reading, and social-emotional skills in a more playful format.
2. Prodigy Math
Free (paid premium available) | Ages 6-14
Prodigy wraps math practice in an RPG game that kids genuinely want to keep playing. Kids answer math questions to battle monsters, and the platform adapts to their level in real time. The core game is free; a paid parent membership unlocks more detailed progress reporting.
3. Zearn
Free | Ages K-8
Zearn is a nonprofit math platform offering full grade-level curricula for K-5 and structured problem sets for grades 6-8. Each lesson combines a short video with interactive practice — solid for families who want a structured math backbone without curriculum costs.
4. Desmos
Free | Ages 13+
Desmos started as a free graphing calculator and has grown into a library of interactive, visual math activities covering algebra, geometry, and statistics. If your teen is working through higher-level math and needs something more dynamic than a textbook, Desmos is worth bookmarking.
5. Bedtime Math
Free | Ages 3-9
Bedtime Math publishes a free daily math challenge — a short story with math questions at three difficulty levels — designed to be read at bedtime. There's also a free app. Research has shown that doing Bedtime Math with kids a few times a week improves math attitudes over time. Small lift, real payoff.
6. Math Playground
Free | Ages 5-12
Math Playground has a large collection of math games and logic puzzles organized by grade level and skill area. It's one of those sites kids can navigate themselves, which is useful when you need 20 minutes where they're doing something productive while you get something else done.
7. IXL Math
From $9.95/mo | All ages
IXL covers K-12 math with thousands of practice problems. It's not free, but at under $10 a month it's one of the more affordable full-coverage math options. The diagnostic feature identifies specific skill gaps quickly, which saves real time if you're not sure where your child needs support.
Reading and writing
8. Starfall
Free | Ages PreK-2
Starfall is one of the original free phonics sites and it still holds up. It's simple, low-stimulation, and covers the fundamentals of sound-letter relationships well. A subscription unlocks additional content, but the free version covers the core phonics progression for early readers.
9. ReadTheory
Free | Ages 7-17
ReadTheory adapts reading passages to your child's current comprehension level and adjusts as they improve. It's quiz-based, which works well for some kids and not others, but the progress tracking is solid — you can see exactly which comprehension skills are developing over time.
10. CommonLit
Free | Grades 3-12
CommonLit offers a library of thousands of texts — fiction, nonfiction, poetry, historical documents — organized by grade level. Each piece comes with guided reading questions and discussion prompts. Good for families who want a literature-based reading program without a curriculum price tag.
11. Newsela
Free tier available | Ages 8+
Newsela rewrites real news articles at multiple reading levels, so an 8-year-old and a 13-year-old can read the same story at different complexity levels. It keeps older kids reading about the real world without overwhelming them with adult news framing.
12. Storyline Online
Free | Ages 4-10
The Screen Actors Guild Foundation runs this site, where actors read children's books aloud on video. It's especially useful for reluctant readers who respond better to hearing a story performed than reading independently.
13. Open Library
Free | All ages
The Internet Archive's Open Library lets you borrow digital copies of millions of books for free — similar to a library card but online. For families working through curricula that call for specific titles, it's often the fastest and cheapest way to access what you need without a library hold.
Science and nature
14. PhET Interactive Simulations
Free | Ages 10+
PhET (from the University of Colorado Boulder) offers free, browser-based simulations for physics, chemistry, biology, and math. Kids can experiment with things that are otherwise impossible to demonstrate at home — simulating atom movement, building circuits, exploring wave mechanics. Widely used in schools and genuinely excellent.
15. CK-12
Free | Ages 10+
CK-12 is a nonprofit that offers free, customizable textbooks and lessons in science, math, and social studies. If you're homeschooling a middle or high schooler and don't want to spend $80 on a biology textbook, CK-12 is worth a serious look.
16. NASA Kids' Club
Free | Ages 5-12
NASA's Kids' Club site has games, activities, and content organized by grade level — all space-themed, all free. For kids who are into astronomy or space exploration, it's a rabbit hole they'll happily fall into.
17. National Geographic Kids
Free | Ages 6-14
Nat Geo Kids covers animals, science, history, and geography through articles, videos, and photo galleries. The content is high-quality and reads more like a magazine than a textbook — useful for kids who resist "school stuff" but will happily read about sharks for an hour.
18. iNaturalist
Free | Ages 8+ (with a parent)
iNaturalist is a citizen science app where you photograph plants, animals, and insects in your area and the community — including real scientists — helps identify them. It's one of the best nature journaling tools available, and the fact that scientists use the same platform makes it feel meaningful to kids.
19. Smithsonian Learning Lab
Free | All ages
The Smithsonian's online hub gives free access to millions of images, videos, and artifacts from across all Smithsonian museums. You can use individual resources or build collections around a theme — useful for unit studies, history projects, or just exploring what's there.
Coding and technology
20. Scratch
Free | Ages 8-16
Scratch is MIT's free visual coding platform, and kids love it because what they're building is theirs — a game, an animation, a story. There's also a large community of shared projects kids can remix and build on. For an introduction to programming logic, it's hard to beat.
21. Code.org
Free | Ages 4-18
Code.org offers free, self-paced coding courses from the basics (block coding for younger kids) through JavaScript and Python for older ones. The Hour of Code activities are a good entry point if your kid has never coded before and you want to see whether they take to it.
22. Tynker
Free tier available | Ages 7-13
Tynker is similar to Scratch but with more structured courses and a game-based framing. The free tier has solid content; premium adds more projects and a Python track. It works well for kids who need more scaffolding than Scratch's open-ended sandbox provides.
23. CS Unplugged
Free | Ages 5-12
CS Unplugged teaches computer science concepts — algorithms, binary numbers, data structures — with no screens at all. It's a collection of offline activities and games from the University of Canterbury, and it works well for younger kids or families who want to cover computing fundamentals while reducing screen time.
24. Swift Playgrounds
Free | Ages 10+ | iPad and Mac
Apple's Swift Playgrounds teaches real Swift programming — the same language used to build iOS apps — through a puzzle-game format. It's genuinely engaging for older kids and teens who are ready to move beyond block coding, and it's free on iPad and Mac.
History and social studies
25. Crash Course
Free | Ages 10+ | YouTube
Crash Course has hundreds of free short videos covering world history, U.S. history, economics, philosophy, literature, and more. Each video runs about 10-12 minutes and is well-produced and fast-paced. For middle and high schoolers who absorb material better through video than reading, it supplements almost any curriculum.
26. iCivics
Free | Ages 10-16
iCivics teaches civics and government through games — kids negotiate legislation, argue cases, and manage branches of government. It makes an often-dry subject genuinely engaging, and the games are curriculum-aligned. Founded by Justice Sandra Day O'Connor.
27. DocsTeach
Free | Ages 10+
DocsTeach is the National Archives' online tool for working with primary source documents — letters, photographs, maps, and government records. For families doing project-based history, it's a strong alternative to textbook summaries of events.
28. Library of Congress
Free | All ages
The Library of Congress website has primary sources, lesson plans, and digital collections organized by era and theme. The "For Kids and Families" section has kid-friendly versions of collections including historical maps, photographs, and manuscripts going back centuries.
Art and music
29. Chrome Music Lab
Free | All ages
Chrome Music Lab is a set of web-based music experiments from Google — kids can play with rhythm, melody, harmonics, and sound without any musical background. It runs in a browser, it's intuitive, and even very young kids can create something that sounds like music.
30. Simply Piano
Free to download, subscription for full access | Ages 4+
Simply Piano by JoyTunes uses your device's microphone to listen as your kid plays and gives real-time feedback on what they're getting right and where they're going wrong. It works with any piano or keyboard — even a cheap one — and takes kids from their very first notes through intermediate pieces with structured lesson tracks. For families who want actual instrument instruction without a private teacher, it's one of the better options out there.
31. Incredibox
Free tier available | Ages 7+
Incredibox is a music creation app where kids layer beats, effects, melodies, and vocals by dragging characters onto a screen. It's creative, musical, and genuinely fun. The free version includes several sound packs; a paid version unlocks more.
32. Art for Kids Hub
Free | Ages 4-14 | YouTube
Art for Kids Hub is a YouTube channel where a dad teaches step-by-step drawing lessons designed for kids to follow along. There are hundreds of videos organized by theme and difficulty level. It's one of those resources that keeps kids genuinely occupied for long stretches.
33. Tate Kids
Free | Ages 5-14
The Tate Modern's website has free art games, creative challenges, and art history content designed for kids. It's well-designed and genuinely interesting — a step up from the worksheet-based art instruction most kids find tedious.
34. Canva for Education
Free | Ages 10+
Canva offers free premium accounts for homeschool families through its education program. It's useful for projects, presentations, visual essays, and anything design-related — and it teaches practical skills that carry into college and beyond.
Languages
35. Duolingo
Free | Ages 6+
Duolingo is the most popular language learning app in the world and the core app is free, covering more than 40 languages. It works best as a daily habit rather than a sit-down curriculum, and the streak system motivates a lot of kids more effectively than traditional flashcard methods.
36. Mango Languages
Free through most public libraries | All ages
Mango Languages is a comprehensive language learning platform that's free if your library card gives you access — and many do. It covers more than 70 languages with a conversational focus. Worth checking your library login before paying for any other language subscription.
37. DW for Kids
Free | Ages 6-12
Deutsche Welle's kids section offers German-language content with English support for beginners, including videos, games, and reading activities. For families adding German to a language rotation, it's a solid free starting point.
Podcasts worth bookmarking
38. Brains On
Free | Ages 6-12
Brains On is a science podcast from Minnesota Public Radio that tackles questions kids actually ask — "Why is the sky blue?" "What happens to food after you eat it?" — with scientists and kid co-hosts. Good for car rides, quiet time, or as a companion to science reading.
39. But Why: A Podcast for Curious Kids
Free | Ages 4-10
Vermont Public Radio's But Why answers questions submitted by real kids — often wonderfully odd ones. It's gentle, well-produced, and actually answers the questions rather than talking down to kids. Great for younger children in a perpetual "but why?" phase.
40. Wow in the World
Free | Ages 5-12
NPR's Wow in the World covers science and technology news for kids with a goofy, warm tone. Hosted by Guy Raz and Mindy Thomas, it's good for kids who aren't naturally drawn to science but respond to storytelling and humor.
When you want something live
41. Outschool
Pay per class, starting at a few dollars | Ages 3-18
Every resource above is self-directed — your kid watches, reads, or plays on their own. Outschool is the one on this list where they show up live and interact with a real teacher and a small group of other kids. With 140,000+ classes covering everything from phonics and fractions to marine biology and creative writing, it covers much of what's on this list — but live, with a teacher who can actually answer questions in the moment. Classes are pay-per-class with no subscription required — and if you want to get a feel for it first, you can try a free class. Many are also ESA-eligible for families using education savings accounts.
Why families are choosing live online classes →
No single resource on this list will be the right fit for every kid. What makes most of them worth trying is that the barrier to start is low — most are free. The best educational tool is the one your kid comes back to on their own.
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