Free to try

Convert 3D Files Online

Upload a model, choose the format you need, and download the result. Your original stays unchanged.

Popular conversions

Each of these has its own page explaining exactly what survives the trip.

OBJ to GLBWavefront OBJ → GLBOBJ to STLWavefront OBJ → STLSTL to OBJSTL → Wavefront OBJSTL to GLBSTL → GLBSTL to PLYSTL → PLYGLB to OBJGLB → Wavefront OBJGLB to STLGLB → STLGLTF to GLBglTF → GLBPLY to GLBPLY → GLBPLY to OBJPLY → Wavefront OBJ

Supported formats

Read means it can be uploaded; write means a conversion can produce it. glTF is read-only because a .gltf may reference external files, and a result is one download.

FormatReadWritePreview
OBJWavefront OBJYesYesYes
STLStereolithographyYesYesYes
PLYPolygon File FormatYesYesYes
OFFObject File FormatYesYesNo
GLBBinary glTFYesYesYes
GLTFglTF 2.0YesNoYes

Limits and privacy

  • Maximum file size: 50 MB.
  • Without an account, files and results are deleted after 24 hours unless you sign in. Signing in claims whatever you have already uploaded and keeps it for 7 days on a free account.
  • Conversion runs on our servers and uses processing credits: 3 per rolling 24 hours without an account, 10 with one. A conversion costs one credit for a file in the smallest size band and more above it — Up to 25 MB is charged at the base rate, and above that a multiplier applies: 2× for 25–100 MB, 4× for 100–250 MB, 8× for 250–500 MB, 16× for 500 MB–1 GB.
  • Uploads are private. Nothing is public, and downloads are signed per click.

Want a rotating preview instead? The 3D GIF maker runs entirely in your browser and uses no processing credits at all.

Further reading

Real models, real numbers, and what each setting actually cost.