Free online reaction time test. Click when the screen turns green to measure your reaction speed in milliseconds, see your percentile and grade, and track...
A beautifully designed, interactive geography cheat sheet covering all 7 continents, 65+ world capitals, the 5 oceans, highest mountains & longest rivers.
macOS menu-bar presentation assistant with cursor highlight, radial menu, drawing, keystroke display, spotlight, and magnifier.
A Linux resource & process monitor inspired by Windows 11's Task Manager, written in Rust with Slint.
AI tool to instantly generate your logo, colors, typography, and website. Build a professional brand identity in just a few clicks.
Free Chinese proficiency test — 20 questions, result in 15 minutes, no registration. Find your HSK level (1–6) with vocabulary, reading & grammar.
A calm, private expense tracker that's actually free. Track spending, stay on budget, and keep your privacy. No bank linking, no data selling.
A guided learning platform focused on reasoning, feedback, clarity, and progressive support instead of simple answer dumping.
A verified, week-by-week record of what you've built with, and at what depth — yours to keep no matter where you work.
Share one link with guests, and Jane — your AI EA — chats with them, finds a free slot, and books it on your Google Calendar.
The most complete AI startup idea validator that scans 50+ live data sources to provide market validation, competitor analysis, and viability scores in 60 seconds.
A code typing trainer built to enhance syntax memory and sharpen your coding skills.
