Science & Education

Explore 3,500+ free calculators designed by experts to solve everyday problems accurately and easily.

Provides lightning and thunderstorm information in real-time on maps.

Pilot the SpaceX Dragon 2 spacecraft and dock with the International Space Station.

Discover hundreds of powerful, easy-to-use and awesome online tools — all in one collection.

Speaking characters for education.

Faster prototyping with 3D printing and LEGO.

Simulate the solar system, exoplanets and even colliding galaxies.

Learn how to perform attacks that real hackers use, and see how they work in our simulator.

AI-powered writing assistance for polished content.

Visualization and analysis of marine traffic and vessel-based human activity at sea.