Free STL to OBJ Converter for Further Mesh Editing

The STL to OBJ Converter lets you open a print mesh in an OBJ-based modeling workflow. Continue with surface cleanup, reshaping or UV unwrapping in your editor; conversion does not recreate the original CAD features.

  • 100% free
  • No signup required
  • Unlimited
  • Safety

Unlimited conversions, one file at a time. Up to 50 MB and 1 million imported triangles per file. Your model stays on your device and is processed locally.

STL to OBJ Converter: Reference Models for Shape and Surface Detail

Inspect these GLB reference models for overall form. Your STL conversion uses your own triangle mesh; the samples do not demonstrate print readiness.

Sample 3D model 1

Reference image for sample 3D model 1

Interactive preview of sample GLB model 1

Sample 3D model 2

Reference image for sample 3D model 2

Interactive preview of sample GLB model 2

STL to OBJ Converter: Triangle Mesh Export

This route extracts an OBJ surface from STL. It is intended for static geometry exchange, with available mesh attributes carried into the export.

Read binary or ASCII STL

Choose an STL containing triangle surfaces. Both binary and ASCII files can be imported for conversion.

Extract an OBJ mesh

Export the STL triangle mesh and normals as OBJ. No UV map is generated, and vertex colors, MTL files, texture images and animation are not exported.

Continue with triangle topology

The OBJ starts from the existing STL surface. Retopology and UV unwrapping remain editing tasks for your modeling application.

A separate .obj download

Save the OBJ result from your browser and keep the .stl source for further work. Conversion does not overwrite the original file.

STL to OBJ Converter Benefits: Continuing Work on an Existing Shape

Continue working from the surface you have when a print mesh needs changes in an OBJ-compatible editor.

No account or credits needed

Choose your STL file and save the OBJ result without signing in or using generation credits. Conversion and download are both included.

Your model stays on your device

Your .stl is processed on your device. Creating the .obj download does not send model data to a conversion server.

Pick up editing from the available STL

When the print mesh is your available source, an OBJ export provides a route into compatible modeling tools for surface-level changes.

Plan the material handoff separately

The OBJ supplies geometry from STL. Keep any original surface references available when you or a collaborator rebuild the materials.

STL to OBJ Converter for surface edits, UV unwrapping and model refinements

Use the converted file in your own modeling workflow. The examples below cover shape changes and surface preparation after the download.

Continue editing an STL as OBJ

Move STL triangle geometry into an OBJ-based modeling workflow. Edit the surface, unwrap it for texturing or build a new material setup in your destination software.

Refine a printable surface

Bring the OBJ into a mesh editor for shape changes, then inspect a new print export after those edits.

Prepare a print model for texturing

Create UV coordinates and materials in your modeling tool when you want to use the former print mesh in a rendered scene.

Rebuild a mesh with different topology

Use the OBJ surface as the starting reference for manual retopology when later modeling work needs a different edge structure.

How to use the STL to OBJ Converter on see3d.art

Add a supported .stl file and let the converter recognize its format. Choose OBJ as the output, run the conversion and save the download.

  • Add your .stl file

  • Choose OBJ as the output

  • Convert and download the .obj

STL to OBJ Converter Questions: Topology and Missing UVs

Review topology, missing UVs and what mesh editing still requires after conversion.