CryptoHack
cryptohack.orgCryptography learning through interactive puzzles and challenges
Cryptography learning through interactive puzzles and challenges
Plan and optimize multi-stop delivery routes, then navigate in Google Maps, Waze, or Apple Maps.
Interactive Icelandic built around life in Iceland.
Interactive geometry software for constructing and changing mathematical figures.
Turn training videos into interactive assessments with AI questions, pass rules and certificates.
Look up US winter hardiness zones
Classroom resources including lesson plans, teaching units, worksheets, themed packs and interactive tools.
Analyze modeled organic keyword performance alongside connected GA4 session data.
Interactive tutoring and adaptive practice in mathematics and coding.
Correlate server and application health, availability, and capacity in a self-hosted monitoring console.
Retrieve files and mirror sites without a desktop
An engineering programming environment for developing algorithms, analyzing data, and visualizing results.
Interactive TypeScript challenges with community discussion
Learn smart-contract coding by building games
Godot learning with interactive apps and game projects
Real-time crypto airdrop tracking dashboard with hand-written research and free calculators.
Shared digital scores with annotations and playback
Browser-based live coding of musical patterns
Scholarcy summarizes papers, articles and textbooks into interactive flashcards.
Real-estate CRM with rules-based assignment and response-aware action plans
Browser experiments for making and understanding music
Free ASL lessons, dictionary and learning games.
A terminal music player that can also serve audio