Your hand.
A drawn possibility.
Position an outline, try a color and make the idea easier to discuss. This is a transparent planning sketch, not a realistic AI manicure or an analysis of your hand.
Same length. Different corners.
These original diagrams hold width and overall length steady. Compare the flat central edge and the corners; the outlines do not measure fit, durability or nail health.
Square: flat edge, defined corners. Squoval: flat center, softened corners. Round: a continuous curved edge.
Shape terminology: OPI shaping guide. These are our own diagrams, not filing instructions. Confirm the actual length and feasibility with your nail professional.
Your saved comparison stays in this tab's session storage, separate from quiz answers. It is not sent to us or added to analytics. Closing the tab ends the session; browser restore may retain it. Clear it below, or export a file and import it on another device. The sample remains an illustrative example.
See the complete sample worksheet · Explore the optional $9 plan · Use the saved outline in the local sketch
JPEG, PNG or WebP, up to 12 MB. A clear top-down photo with fingers pointing upward makes positioning easier.
Add a photo to start drawing.
No upload or account.
Use it as a conversation aid.
The tool places flat, original vector shapes on a photo. You control size, position and rotation. It does not detect nails, remove polish, generate fingers, measure fit or predict the look of a real product.
The exported image keeps a visible sketch label. Compare the intended outline and color direction, then confirm length, material and feasibility with the person doing your nails. If you want help choosing a starting pair, take the free nail shape quiz.
