Spiro Designs

Spiro Designs draws the patterns a small circle makes as it rolls around the inside of a large one. Stamp circles or polygons at every step, or let a single point leave a spirograph trail, then play with size, spacing, colour and blend mode until something beautiful appears. WHAT YOU CAN DO • Pick a shape: circles, a line, triangles, squares, all the way up to decagons, or a classic spirograph curve • Pinch the drawing to change size, drag sideways to change spacing, drag up and down for line weight • Choose fill, outline or both, with 23 named colours or random colours on every change • Combine overlapping colours with 20 blend modes, from Difference and Exclusion to Screen and Multiply • Even-odd fill turns overlapping shapes into lace and checkerboard patterns • Start from twelve curated presets, or roll a random design with one tap • Animate the design being drawn, and tap for a clean full-screen view • Undo and redo every change • Keep up to 50 named designs and reopen, update or rename them • Share as a high-resolution PNG, save to Photos, or export an SVG vector file for design apps, plotters and cutters No account, no ads, no tracking. Your designs stay on your device.