Files tool

STL-to-G-code Converter

Turn an ASCII STL outline into simple preview G-code with basic printer settings.

Runs in your browser

STL-to-G-code Converterdraft outline mode

Layer heightmmPrint speedmm/min

Choose a fileASCII or binary STL · dimensions assumed to be millimetersBrowse files

Safety limit: this creates rectangular outline preview G-code, not production slicing or infill. Inspect in a G-code viewer and use a real slicer before sending anything to a printer.

How to use this stl-to-g-code converter

Choose an ASCII or binary STL file, set the layer height and movement speed, and generate the draft outline G-code.
Review the layer height, movement speed, outline coordinates, and printer commands before downloading the draft G-code.
Preview the finished file, then download it. Open the download once to make sure it has the expected size and content.

About this stl-to-g-code converter

Use the STL-to-G-code Converter to turn an ASCII STL outline into simple preview G-code with basic printer settings. Each control affects a specific part of the result.

You can also use it to compare the converted result with the source.

Example

Choose an ASCII STL, set a 0.2 mm layer height, and inspect the outline moves before sending anything to a printer.

Common uses

→ turn an ASCII STL outline into simple preview G-code with basic printer settings
→ compare the converted result with the source
→ prepare the output for another task or program