Convert 3D Files in Seconds

STL, OBJ, PLY, glTF/GLB, 3MF and STEP. Preview your model, repair it and get it print-ready, right in your browser. No sign-up; files are processed in memory and never stored.

Drop 3D files here or click to browse

STL, OBJ, PLY, GLB/glTF, 3MF, STEP, or a ZIP. Up to 20 MB free, no sign-up.

Free: 20 MB per file, 3 files per batch. Need more?

Printing an AI-generated model?

Models from Meshy, Tripo, Hunyuan3D or ComfyUI usually come out tiny, lying on their back and full of holes. Make one print-ready in one step.

Popular conversions

GLB to STL GLTF to STL 3MF to STL STL to 3MF OBJ to GLB PLY to OBJ STEP to STL STL to STEP STL to OBJ OBJ to STL

Guides

Optimizing 3D models for printing
The 3MF format explained
STL vs OBJ
STEP files and CAD
All supported formats

Plans

Free: files up to 20MB, 3-file batches, repair, polygon reduction and print prep. Pro adds 500MB files, 50-file batches, STEP output and the API. Need it once? A 24-hour pass is $4.99. Developers: see the API docs.