OBJ to STL Converter
A binary STL triangle mesh. Read OBJ vertices and triangular or convex planar faces, calculate normals and write binary STL.
Open toolSTL to OBJ Converter
Read binary or ASCII STL triangles and write an OBJ surface mesh. Up to 100,000 triangles.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Convert mesh to OBJ.
Your result
Enter your details
Result will appear here
How STL to OBJ Converter works
Read binary or ASCII STL triangles and write an OBJ surface mesh.
The tool processes the supplied input with browser APIs and bundled local libraries.
How to convert mesh to OBJ
Supply supported input and review the result.
Choose the supported file
Choose STL mesh. Processing reads the file in this browser.
Input and settings
Review the conversion settings
Check the supported input and conversion limits below.
Tool result
Review and save the result
Save OBJ vertices and triangular faces. Check the download in its target application before replacing your source.
Review the details
When to use STL to OBJ Converter
Open triangles in an OBJ workflow
Convert supported STL triangles into OBJ vertices and faces. The output contains geometry without materials.
Read either STL container variant
Both ASCII and binary STL are supported. A malformed count or triangle record returns an error.
Keep scale consistent
Coordinates are exported without unit conversion. Confirm the receiving application uses the units expected for the original mesh.
What the output contains
Review the format and conversion policy.
OBJ vertices and triangular faces. Up to 100,000 triangles. No materials or colors are exported, and vertices remain separate per triangle. Units are unchanged; the tool does not repair a mesh.
Keep the original while checking the saved output. The result reflects the input and settings you supplied.
Supported input and limits
Check these conditions before converting.
Up to 100,000 triangles. No materials or colors are exported, and vertices remain separate per triangle. Units are unchanged; the tool does not repair a mesh.
The page does not keep inputs or results after leaving. Keep the source and save the output you need.
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Open toolConvert mesh to OBJ with your input
Review the supported output and save your result.
STL to OBJ Converter: common questions
Answers about using STL to OBJ Converter and understanding its results.
What output can I save?
Save OBJ vertices and triangular faces. Up to 100,000 triangles. No materials or colors are exported, and vertices remain separate per triangle. Units are unchanged; the tool does not repair a mesh.
Does the page upload my input?
No. Processing uses browser APIs and bundled local libraries. The selected file or entered source is not sent to a conversion server. Save the result before leaving.