Geometric Pattern Generator for Laser Cutting
Six pattern engines in one studio — tileable girih strapwork, aperiodic Penrose tilings, hyperbolic tessellations, star rosettes, medallion pendants, and one-piece mandala stencils — with live fabrication checks for your kerf, material, and sheet size. Every export is real-world scale: a 100 mm square in the file is 100 mm under the laser, which is what the ruler along the edge of the bed is measuring.
Designing, previewing and validating are free. A one-time $29 purchase unlocks every export — score/engrave SVG, cut-lattice cut files, DXF for LightBurn, and project save/load — tied to your account, so it works on every device you sign into. The calibration square stays free: cut it first to confirm real-world scale before you buy.
New to these patterns? Read the guide to Islamic geometric patterns for how girih tiles, strapwork and quasiperiodic tilings are constructed — then build your own here.
Formerly Girih Pattern Studio — girih is now one of six engines. Existing Pro unlocks and saved projects carry over unchanged.
Six pattern engines
Tileable strapwork cells that repeat seamlessly, true aperiodic 10-fold patterns grown by Penrose substitution, {p,q} hyperbolic tessellations projected onto a disc, classic {n/k} star rosettes, ready-to-hang medallions, and mandala stencils built ring by ring with a live per-ring editor. Deterministic seeds — the same seed always rebuilds the same design.
Certified to hold together (Pro)
Most generators make pictures; this one makes parts. The cut-lattice engine turns patterns into real closed ribbons and mathematically audits the result before export — one-piece connectivity for stencils, kerf-adjusted bridge clearance, per-face diagnostics, and multi-sheet backing layers with glue-support checks — so what exports is what survives the laser.
Honest file formats
SVG with named operation layers (cut / score / engrave / frame) and configurable stroke colors, plus DXF R12 for LightBurn and RDWorks (Pro). Exports are polyline-based — no arcs — which is exactly what laser controllers execute anyway. 7- and 14-fold symmetry ships as radial rosettes; true 7-fold edge-to-edge tiling isn't mathematically supported yet.