Sinopia · Stencil layer maker

Prototype — runs entirely in your browser. No upload. Split an image into cuttable layers by value or colour.
Tap to load an image
or drag one here
Split by
Layers4
Smoothing3 px
Traces the outline to a vector and simplifies it — low = faithful, high = bold rounded shapes. Drops tiny specks. 0 = raw pixels.
Output
Cut sheet options
Bridges
Bridge width4 px
Tiled print (PDF)
Final width60 cm

Stacked preview

Load an image to begin.
Each layer below is one mask. Click a layer to open it large and brush cleanup. Cut the black areas; stack the layers in order and the image rebuilds.