How it works

From 3D model to paper, in five steps.

Upload a model, unfold it, print it, and glue it back together. Everything runs in your browser, and the same model with the same settings always gives the same result.

3D to Flat · studio · cabin.obj · US Letter
3D model
Sheet 1 / 1 · US Letter
112233445566778899P150 mm check ruler
Drag to rotate · drag pieces to arrange · click a part CutMountainValley 1 parts · 9 joins
  1. 01

    Drop in your 3D model

    Use OBJ, STL, 3MF, FBX, GLB or glTF, or a ZIP bundle with related files. The model is loaded and repaired right in your browser. Low poly models work best.

  2. 02

    Unfold with one click

    3D to Flat flattens your model into paper pieces automatically. Flat areas become clean panels, seams land on sharp edges, and every piece gets glue tabs and fold lines.

  3. 03

    Tweak it your way

    Move, rotate, join or split pieces, adjust glue tabs, and set the real-world size. The 3D view and the flat layout stay linked, so you always see what you are editing.

  4. 04

    Print at true scale

    Export to PDF for a home printer, or SVG and DXF for cutting machines and CAD. Pages include a printed ruler so you can check your printer did not rescale anything.

  5. 05

    Build it

    Matching edges share the same number, so you always know which two sides to glue together. Fold along the dashed lines, glue the tabs, and the model takes shape.

Good to know

Low poly works best

Models with a few thousand triangles unfold beautifully. Heavier meshes are simplified for you automatically, because nobody wants to hand-cut ten thousand pieces.

Closed models unfold best

Open or broken surfaces still unfold, but the seams are cleaner when the model is watertight. Close holes first where you can.

Color if the model has it

Models that carry color (GLB, glTF, 3MF, or an OBJ zipped with its materials) print in full color under the cut and fold lines. Plain models like STL print as clean line work.

Open the studio