Perfect Circle Draw is a free, browser-based precision drawing challenge built for anyone who's ever wondered: just how good are my hands?
The concept is simple — draw a freehand circle (or square, triangle, or hexagon) in one smooth motion, and our algorithm scores how close you came to geometric perfection. It sounds easy. It really isn't.
How It Started
Perfect Circle Draw was created out of a love for simple, skill-based browser games. Inspired by classic freehand-drawing challenges, we wanted to build something that was instantly understandable, endlessly replayable, and accessible on any device — no downloads, no accounts, no friction.
What We Offer
- Circle Challenge — the original and most popular mode.
- Square & Triangle Modes — test your precision on harder shapes.
- Hexagon Mode — for those who like a real challenge.
- Daily Challenge — a new shape seed every day, so you can compete for the best score globally.
Our Scoring Algorithm
Your score is calculated by comparing the shape you drew to the ideal geometric form. We measure how closely the path you traced matches the ideal radius (for circles) or the ideal proportions and angles (for other shapes). A score of 100% means you drew a mathematically perfect shape — an exceptionally rare feat.
Privacy First
We don't require any sign-up and we don't collect personal information. Your score history is stored locally in your browser. We believe in keeping the web simple and private.
Get In Touch
Have a suggestion, a bug to report, or just want to say hi? We'd love to hear from you. Head over to our Contact page.
Ready to test your precision? Try the Perfect Circle Draw challenge now →
You can also review our Privacy Policy andDisclaimer for legal information.