// curated AI software, with pricing at a glance
1,467 AI tools and websites, sorted by what they cost and what they do. No sign-up, no fluff.
Free AI career platform that helps professionals move into AI from the job they have now, with 6 AI career roadmaps, 400+ server-graded practice questions, three new challenges a week, and a public leaderboard.
#Education
★ Featured
AI-powered prompt engineering platform that helps users create, test, optimize, organize, and deploy prompts for ChatGPT, Claude, Gemini, and other large language models through a collaborative workspace designed for prompt development and management.
#Productivity
★ Featured
Updated 7 November 2026 · re-ranked every 3 days on what readers use, never sponsored
// websites & apps
// on github
1,156 apps
Free AI career platform that helps professionals move into AI from the job they have now, with 6 AI career roadmaps, 400+ server-graded practice questions, three new challenges a week, and a public leaderboard.
#Education
★ Featured
AI-powered prompt engineering platform that helps users create, test, optimize, organize, and deploy prompts for ChatGPT, Claude, Gemini, and other large language models through a collaborative workspace designed for prompt development and management.
#Productivity
★ Featured
Worldometer is a free site with live counters and statistics on world population, countries, energy, CO2 and more. Funded by ads, with no paid plan.
#Data & Analytics
World Time Buddy is a freemium world clock and time zone converter that lines up cities hour by hour, free online, with a paid upgrade for more.
#Productivity
WikiArt is a free online encyclopedia of visual art, with artworks from all periods sorted by artist, style and genre. Funded by ads, with no paid plan.
#Education
When2meet is a free group scheduling tool: name an event, pick dates and hours, share the link, and everyone marks when they are available, with no sign-up.
#Productivity
Sejda is a freemium online PDF editor and toolkit to edit, merge, split, compress and sign PDFs, free with page and hourly limits, with paid passes from $5.
#Productivity
The Man in Seat 61 is a free train travel guide with routes, tickets and tips for travelling by rail and ferry around the UK, Europe and the world.
#Travel & Lifestyle
RapidTables is a free reference site of online calculators, unit converters and tables for maths, electricity and web design, plus a simple online notepad.
#Productivity
Ptable is a free interactive periodic table with element properties, electrons, isotopes and compounds. Ad supported, with a $1 monthly option to remove the ad.
#Education
Pomofocus is a freemium Pomodoro timer for the browser with tasks, estimates and focus reports, free to use, with a paid plan that removes ads and adds projects.
#Productivity
Piskel is a free, open source online editor for pixel art and animated sprites. Draw in your browser and export GIFs or spritesheets, with ads and no paid plan.
#Art & AI Images
PhET Interactive Simulations is a free library of physics, chemistry, biology, earth science and maths sims from CU Boulder. Paid licence for PhET Studio.
#Education
PairDrop is a free, open source way to send files between devices in a browser, like AirDrop across any platform, with no sign-up or app to install.
#Productivity
Our World in Data is a free non-profit site with charts and research on global problems such as poverty, health and climate. No paid plan, no account.
#Data & Analytics
OpenStreetMap is a free, editable map of the world built by volunteers, with open data, route directions and no account needed to browse.
#Travel & Lifestyle
OneLook is a free dictionary search and reverse dictionary that searches over 800 dictionaries at once and finds words by meaning or by letter pattern.
#Writing
Omni Calculator is a free collection of nearly 4,000 online calculators for finance, health, maths, physics, cooking and everyday questions.
#Finance & Career
NASA's Eyes is a free set of real-time 3D web apps from NASA for exploring the solar system, asteroids, Earth data and exoplanets. No account or paid plan.
#Education
MSD Manual is a free medical reference, first published in 1899, with consumer and professional versions covering health topics, symptoms and drugs.
#Health
MedlinePlus is a free health reference from the US National Library of Medicine, with no ads, covering conditions, drugs, tests and an encyclopedia.
#Health
LightningMaps.org is a free community map that shows lightning strikes around the world in real time, using Blitzortung.org data. No paid plan and no sign-up.
#Education
Kleki is a free online painting app with layers, brushes and pen pressure support. It opens straight in your browser with no ads, no sign-up and no paid plan.
#Art & AI Images
IsThereAnyDeal is a freemium PC game price tracker, free to use with an optional Patreon, that compares shops and alerts you when games go on sale.
#E-commerce