About Asymptote Studios
What this site is
Asymptote Studios builds free, fast math tools — starting with the Derivative Calculator, a step-by-step differentiation tool aimed at students learning calculus. Type in an expression and it returns not just the answer but every intermediate step, with the rule used at each step named explicitly: power rule, product rule, chain rule, and so on.
Why we built it
Most online derivative calculators give you an answer and nothing else — which is fine for checking homework, but useless for understanding why the answer is what it is. The tools that do show steps often lock them behind a subscription. We wanted a calculator where the steps are the whole point: free, unlimited, and detailed enough that you can find the exact line where your own work went wrong. The calculus guides extend that idea with plain-English explanations of the rules themselves.
How it works
Everything runs in your browser. When you enter an expression, it is parsed and differentiated symbolically on your own device — nothing you type is ever sent to a server. That design choice has a nice side effect: the calculator works at full speed regardless of our server load, and your inputs stay completely private. The full details are in our privacy policy, but the short version is that we have no accounts, no tracking of our own, and no database of anything you compute.
Keeping it free
The site is supported by advertising, which is what lets us keep every feature — including full step-by-step solutions and higher-order derivatives — free with no account required.
Contact
Found a wrong answer, a bug, or have a feature request? We genuinely want to hear about it — especially wrong answers. Reach us at [email protected].