Draw a Perfect Circle

✓ Free Draw the Perfect Circle Challenge Game

A minimalist freehand circle challenge — draw a circle by hand and get an instant 0–100 roundness score, right in your browser. Free, no signup, fully private.

• ⭕ Live Roundness Scoring — Your circle is scored 0–100 in real time based on how even the radius stays around its center.
• 🎯 Anti-Cheat Angle Check — Half-circles and short arcs can't fool the score — full 360° coverage is required to rate high.
• ✨ Beautiful Glowing Stroke — The pen glows and shifts color with your accuracy, from red to gold-green as you near perfection.
• 📐 Ideal Circle Overlay — When you finish, the perfect circle is overlaid as a dashed guide so you can see exactly where you drifted.

Full guide, how-to & FAQ →

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