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Free online tools
STL to DXF converter
Convert STL to DXF for a mesh-based exchange workflow. Review the output in your target application; changing format does not recover sketches, dimensions or parametric features.
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FROM FILE TO FINISHED MESH
How to convert your file
Review your settings
Choose the right mode, scale and detail. Processing runs in your browser.
Inspect and download
Rotate the preview, save the output and verify it in your next application.
Triangle geometry is not a clean drawing profile
An STL to DXF export represents the supported mesh geometry, not an automatic reconstruction of editable engineering drawings. If your goal is a two-dimensional cutting path, create the required projection or section in suitable CAD software and check for duplicate segments, gaps and correct units.
Check the reverse DXF to STL workflow · Understand mesh-to-CAD reconstruction limits
Processing limits
STEP input: 20 MB. STL, OBJ and 3MF input: 50 MB. Output is limited to 1.2 million triangles. Complex models may need simplification in the source application.
One file at a time. Processing stops after 90 seconds. Files remain in browser memory, and no conversion upload is performed. Replacing a file clears the previous result. Closing the tab releases its working data.
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