education Tools
Explore the best new education tools and products curated by the community.
CipherLock is a minimalist interactive hub to explore cryptography. Features Caesar, Vigenère, Morse, Atbash & Rail Fence ciphers. Includes an Academy for foundations and a Daily Enigma challenge. 100% client-side, open source & privacy-focused.
AstroGrid turns your browser into a spaceship. Fly from Earth's surface to the edge of the observable universe, all in real 3D. • 119K real stars (HYG catalog) with accurate B-V colors • NASA JPL orbital mechanics for the Solar System, in real time • 14K deep-sky objects, black holes with gravitational lensing, pulsars, supernovae, and gravitational-wave events • Runs entirely client-side. No install, no signup. Built for the curious students, educators, and space nerds.
AstroGrid turns your browser into a spaceship. Fly from Earth's surface to the edge of the observable universe, all in real 3D. • 119K real stars (HYG catalog) with accurate B-V colors • NASA JPL orbital mechanics for the Solar System, in real time • 14K deep-sky objects, black holes with gravitational lensing, pulsars, supernovae, and gravitational-wave events • Runs entirely client-side. No install, no signup. Built for the curious students, educators, and space nerds.
You can now use Plannotator to annotate anything! Free, open source, and private (runs local). Use the skill `/plannotator-annotate` (or cli) - followed by a folder, URL, document, markdown, your book, a recipe, a plan, etc - to annotate anything and send feedback directly into your integrated agent. Use `/plannotator-last` to annotate the last message an agent sent you too. I like using it for my own version of Karpathy’s "LLM Wiki" in obsidian. https://github.com/backnotprop/plannotator
You can now use Plannotator to annotate anything! Free, open source, and private (runs local). Use the skill `/plannotator-annotate` (or cli) - followed by a folder, URL, document, markdown, your book, a recipe, a plan, etc - to annotate anything and send feedback directly into your integrated agent. Use `/plannotator-last` to annotate the last message an agent sent you too. I like using it for my own version of Karpathy’s "LLM Wiki" in obsidian. https://github.com/backnotprop/plannotator
Grinding LeetCode teaches you to pattern-match memorized solutions, not to actually see how algorithms work. TraceCode is different, you step through real code, watch state change live, and do drills that make you predict what happens next. Fewer problems, deeper understanding, better interviews.
I taught machines to read newspapers, gave them 250 years of data, extracted everything (6 million+ stories so far), separated the ads from the content, and categorized it all. You can search semantically or with you own AI research assistant and get the actual articles with full text extraction, as well as build and share collections. As far as I know, this has never been done before, the data isn't on Google or in any LLM, only on SNEWPAPERS
Now with Notebooks in Gemini, you get a dedicated space to organize chats, files, and PDFs by project. Add custom instructions, sync with NotebookLM, and let Gemini use your sources alongside web search. Rolling out to Ultra, Pro, and Plus users now.
Most people don't lack the words — they lack the practice. SpeechPal gives you a safe space to rehearse any real life situation, from job interviews, presentations and meetings, and get instant AI feedback on how you came across. Situation based practice. Feedback that cuts to what matters. Compare multiple takes and find your best self. No fluff. Just you, your voice, and the confidence to use it.
A Place built for Developers, where they can just sit and start, no distraction from learning coding to creating their portfolios and a Developer profile which connects you through all your stats and your contributions. Practice. Build. Get hired. CodePlanet is the all-in-one coding platform with 11K+ problems, AI mentorship, a cloud IDE, and a portfolio that proves your skills.
Like a flight simulator for systems. Drag components, wire them together, hit play, and watch real traffic flow through your system. See queues fill up, databases choke, and bottlenecks form in real time. Scrub a timeline to inspect any moment. Fix what breaks, run it again. That's how you go from knowing patterns to understanding systems. Export to PNG, Mermaid, or Python for your docs and repos. 7 blocks, 12 behaviors, AI that turns code or prompts into live diagrams. Free in your browser.
X-Pilot turns docs into video courses for people who explain anything and can't risk hallucinations. Every visual is rendered programmatically via Remotion in isolated sandboxes — deterministic, not generative. Formulas, diagrams, and code stay accurate.
Amadeus lets you upload/scan sheet music, connect your digital piano, and start practicing immediately with real-time feedback. No sight reading skills? No problem. Don't settle for someone else's library, learn the songs you love!
Enjoy LeetCoding right at your fingertips — jump in for quick practice, browse your collections, and stay on top of important events and progress. • Search and discover the latest company questions • View and practice your favorite challenges • Manage lists or add to your wishlist to practice later • Keep track of your progress with a rich profile view and widgets • Stay notified and keep your streak alive — level up with new challenges and quests • More content and features coming every month…
Drag-and-drop real AWS services, wire them together, and simulate live traffic. Then inject faults and watch failures cascade through your architecture in real time. Export to CloudFormation or Terraform with auto-inferred IAM in one click. AI Design Doctor grades your architecture and catches anti-patterns. Collaborate in real time with live cursors. Tackle 10 architecture challenges with automated validation. No AWS account needed. Runs entirely in your browser.
Clicky is a free macOS AI buddy that lives next to your cursor. It sees your screen, listens to your voice, and walks you through whatever you're working on — powered by Claude, AssemblyAI, and ElevenLabs. Open source, Apple Silicon and Intel.
Bugsy is an interactive "insect Pokedex" that uses AI to give a voice to the tiny creatures around us. 🐞 Collect : Complete your collection through daily quizzes, walking challenges, and trading duplicates with friends. Chat (Premium): Chat with insects, their personality is based on their behavior in nature. Dynamic infos (Premium): Real-time weather animations showing insect activity. Inclusive: Built for everyone with VoiceOver, reduced mobility mode, and species masking for phobias.
The all-in-one AI-powered note taking app for students and professionals.
ConceptSeek is a source grounded research workspace. Search inside videos, podcasts, and articles by concept instead of keywords. Find exact moments, compare ideas across sources, and extract insights from real content, not AI hallucinations. Build your own libraries and explore knowledge with precision. Now live and free to try.
GitQuest helps you learn Git by practicing, not watching tutorials. Solve interactive investigations in a simulated terminal, make mistakes safely, and build real Git skills step by step. Includes a mobile app, daily challenges, and a certificate. Free and accessible to everyone
• Adaptive spaced repetition • AI-powered explanations and examples • Your vocabulary, not collections you never use • Review only what you’re about to forget • Learn less, remember more