There are several good free tools on the way from drawing to G-code, and depending on the task a different one is the best choice. Here is a comparison of the best-known tools by the criteria that matter in practice (as of our research: July 2026, no guarantees).
Try step2gcode directly: open www.step2gcode.com in your browser, upload a file, download G-code.
| Tool | In browser | STEP | DXF/SVG | Nesting | G-code |
|---|---|---|---|---|---|
| step2gcode | Yes | Yes | Yes / Yes | Yes, integrated | Yes (GRBL, Mach3, LinuxCNC) |
| dxf2gcode | No (desktop) | No | Yes / No | No | Yes |
| OpenBuilds CAM | Yes | No | Yes / Yes (+ bitmap) | No | Yes |
| Kiri:Moto | Yes | No (mesh: STL/OBJ) | Partly | No | Yes (incl. 3D CAM) |
| SVGnest / Deepnest | Yes / No | No | Yes | Yes, very strong | No |
Fusion 360 is a full CAD/CAM system with an enormous feature set and a matching learning curve; the free personal licence has restrictions. step2gcode deliberately covers the simple 2.5D case: upload the file, pick parameters, download G-code, without installation and without a CAM course. For complex 3D machining, a full CAM remains the right choice.
The information comes from our research in July 2026 and may change; the compared tools keep evolving. If something is no longer accurate, we appreciate a note via the contact form.