Are these tools free?
Yes. Every tool in this lab is free to use, with no account or login required.
What grade levels or exams do these cover?
The lab spans basic arithmetic and geometry (roughly middle school) through JEE / JEE Advanced level topics in algebra, coordinate geometry, trigonometry, calculus, and mechanics.
Do I need to install anything?
No. Everything runs directly in your browser — just open a tool and start exploring.
Do I need an account to use these tools?
No. There's no signup and no login. Every tool is free and open access.
Do these tools work offline?
Most tools need a brief internet connection the first time they load, and run smoothly after that. If you're setting these up somewhere without reliable internet — a classroom, a lab — get in touch via the Contact page and a fully offline version can be arranged.
Which devices and browsers are supported?
Any modern desktop or mobile browser with WebGL support (Chrome, Firefox, Edge, Safari). 3D tools are smoother on desktop; most also work fine on phones and tablets.
Can I suggest a new tool or report a bug?
Yes — see the Contact page. Bug reports and topic requests are welcome.
Can I use these in my classroom?
Yes, they're built with teaching in mind. See the Terms of Use page for the specifics on redistribution.