Convert STL to OBJ
Convert STL to OBJ online for free. No signup required. Your files upload over an encrypted connection and are deleted after 2 hours.
Free
no account needed
Frankfurt
stored in the EU
2 hours
then files are deleted
New conversion
Any format in, the right format out
Drag and drop your files here, or import from:
Upload files up to 100 MB in STL
How to convert STL to OBJ
Everything happens on this page, in any modern browser, with nothing to install.
Upload your STL file
Drag and drop your STL file or browse from your device, Google Drive, Dropbox, or OneDrive.
Convert to OBJ
Press Convert. To convert several STL files at once, add them all first.
Download your OBJ
Most files are ready in seconds.
What you get when you convert STL to OBJ
Each STL file you add comes back as its own download, under its original name.
- 01
With several results, Download all saves them all with one click.
- 02
If one file in a batch fails, the others still finish, and the result says what went wrong.
- 03
Your OBJ file converts on to PLY, GLB, GLTF and 5 more here.
What STL and OBJ files are
STL
STL is the standard file format for 3D printing. It describes a model's surface as a mesh of triangles without colour, texture or units, which keeps it simple and universally supported by slicers and CAD software.
OBJ
OBJ is a plain-text 3D geometry format from Wavefront. It stores vertices, faces, normals and texture coordinates, and can reference materials through an MTL file, so it carries more than STL while staying readable by almost every 3D tool.
Convert your STL files to other formats
Choose a target format below to convert your STL files quickly and easily.
STL to PLY
Convert STL files to PLY format.STL to GLB
Convert STL files to GLB format.STL to GLTF
Convert STL files to GLTF format.STL to DAE
Convert STL files to DAE format.STL to FBX
Convert STL files to FBX format.STL to 3MF
Convert STL files to 3MF format.STL to X3D
Convert STL files to X3D format.STL to 3DS
Convert STL files to 3DS format.
Convert other files to OBJ
Select a source format below to convert files to OBJ.
DXF to OBJ
Convert DXF files to OBJ format.PLY to OBJ
Convert PLY files to OBJ format.GLB to OBJ
Convert GLB files to OBJ format.GLTF to OBJ
Convert GLTF files to OBJ format.FBX to OBJ
Convert FBX files to OBJ format.DAE to OBJ
Convert DAE files to OBJ format.3DS to OBJ
Convert 3DS files to OBJ format.X to OBJ
Convert X files to OBJ format.3MF to OBJ
Convert 3MF files to OBJ format.AMF to OBJ
AMF is an XML format for 3D printing standardized as ISO/ASTM 52915.OFF to OBJ
Convert OFF files to OBJ format.X3D to OBJ
Convert X3D files to OBJ format.
Frequently asked questions
Still have questions? Contact support.
Is it free to convert STL to OBJ?
Yes, converting STL to OBJ is completely free. You can convert files up to 100 MB and up to 10 files per batch, and no signup or account is required.
Will converting STL to OBJ affect the quality?
Our converter preserves the original quality of your STL files during the conversion to OBJ. The output maintains formatting, layout, and visual fidelity as closely as possible.
Can I convert multiple STL files to OBJ at once?
Yes. You can convert up to 10 STL files to OBJ in a single batch. Drag and drop all the files at once, and Novitora processes them together.
Is my data safe when converting STL to OBJ?
Your files upload to Novitora servers over an encrypted TLS connection and are automatically deleted 2 hours after upload. Data is stored in the EU (Frankfurt), and we follow SOC 2-aligned security practices.
What devices can I use to convert STL to OBJ?
Novitora works in any modern web browser on desktops, laptops, tablets, and phones. There is nothing to install: open the page, upload your STL file, and download the OBJ.