Do I need AutoCAD or design software to use FileCrank?

No. FileCrank is designed for users without Blender, Cura, or any other 3D software. Upload your file, choose your options, and download the result — all in your browser.

Will my mesh quality be preserved?

Yes. Mesh geometry, vertex count, and normals are preserved exactly in the STL output. The file is immediately ready for slicing and printing.

What if my OBJ file has colors or textures?

STL is a single-color mesh format without texture support. Your OBJ's geometry is preserved exactly, but colors and textures are not included in the STL output. If you need colored 3D printing, export as MTL-referenced OBJ or use a specialized colored-mesh format like 3MF.

Can I download the STL and print it immediately?

Yes. The output STL is closed, watertight, and immediately ready for slicing in Cura, PrusaSlicer, or Bambu Studio. You can load it directly into your 3D printer's software without any post-processing.

OBJ to STL

Convert OBJ 3D models to STL for 3D printing and slicing

Drag & drop your file here

or click to browse — up to 200 MB

Your files are deleted after about an hour