3D File Converter
Free online converters between STL, OBJ, GLB, glTF, FBX, PLY, 3MF, USDZ and more. No software to install.
45 working conversions · 4 format guides with conversion unavailable. Animation, rigs and proprietary materials may be lost; check the notes on each page.
OBJ Converters
OBJ → STL Popular
Wavefront OBJ to 3D-printable STL
Server-side conversionOBJ → 3MF
OBJ to 3MF
Server-side conversionOBJ → FBX
OBJ to FBX
Server-side conversionOBJ → GLB
OBJ to GLB
Server-side conversionOBJ → glTF
OBJ to glTF
Server-side conversionOBJ → PLY
OBJ to PLY
Server-side conversionOBJ → USDZ
OBJ to USDZ
Browser conversionGLB Converters
GLB → glTF Popular
GLB to glTF
Server-side conversionGLB → OBJ Popular
Extract editable OBJ with materials
Server-side conversionGLB → STL Popular
glTF Binary to STL for slicing
Server-side conversionGLB → FBX
GLB to FBX
Server-side conversionGLB → PLY
GLB to PLY
Server-side conversionGLB → USDZ
GLB to USDZ
Browser conversionFBX Converters
FBX → OBJ Popular
Convert FBX to universal OBJ format
Server-side conversionFBX → 3MF
FBX to 3MF
Server-side conversionFBX → GLB
FBX to GLB
Server-side conversionFBX → glTF
FBX to glTF
Server-side conversionFBX → PLY
FBX to PLY
Server-side conversionFBX → STL
FBX to STL
Server-side conversionFBX → USDZ
FBX to USDZ
Browser conversionglTF Converters
STL Converters
CAD Converters
DWG → STL
DWG to STL
Not supported server-sideIFC → OBJ
IFC to OBJ
Server-side conversionIGES → STL
IGES to STL
Server-side conversionIGES → STL
IGES to STL
Server-side conversionSLDPRT → STL
SLDPRT to STL
Not supported server-sideSTEP → STL
STEP to STL
Server-side conversionParasolid → STL
Parasolid to STL
Not supported server-sideOther Converters
3MF → STL Popular
3MF colour model to plain STL
Server-side conversionBlend → GLB Popular
Blend to GLB
Server-side conversionPNG → STL Popular
Turn a PNG or JPG into a printable relief
Server-side conversionPLY → STL Popular
Convert 3D scan PLY files to STL
Server-side conversionSVG → STL Popular
Extrude SVG vector logos into printable 3D models
Server-side conversionBlend → OBJ
Blend to OBJ
Server-side conversionBlend → STL
Blend to STL
Server-side conversionDAE → FBX
DAE to FBX
Server-side conversionDAE → OBJ
DAE to OBJ
Server-side conversionSKP → OBJ
SKP to OBJ
Not supported server-sideUSDZ → GLB
USDZ to GLB
Browser conversionFrequently Asked Questions
What 3D file formats can I convert?
49 converters across OBJ, GLB, FBX, glTF, STL, 3MF, PLY, USDZ, COLLADA, OFF plus CAD and DCC inputs. 39 of them run a real server-side mesh pipeline; the rest tell you plainly what is and is not possible.
Is the 3D file converter free?
Yes. Every converter is free and needs no account. They exist so a file format never blocks a project.
Are my files safe?
Converted files are written to disk only long enough to hand them back to you, then they are yours. Nothing is published or shared.
Can I convert files on a Mac?
Yes. Everything runs in the browser and on the server, so macOS, Windows, Linux and ChromeOS all work identically.
What is the maximum file size?
50MB per converter upload. Local browser tools accept larger files because they never leave your device.
Do the converters preserve materials and textures?
When the target format supports them. GLB, glTF, 3MF, OBJ, FBX and DAE carry materials; STL and PLY do not. Each page states exactly what a given conversion loses.
Can I convert STL to a format with colour?
STL carries no colour to begin with, so nothing can restore it. Convert STL to 3MF or OBJ to get a container that supports colour, then assign materials in your modelling tool.
Which format is best for 3D printing?
STL for maximum compatibility, 3MF when you need units and colour to survive. Most modern slicers read both.
Which format is best for web 3D?
GLB. One file holds geometry, PBR materials and textures, and it loads directly in three.js and Babylon.js.
Which format is best for game development?
GLB for a modern engine-agnostic pipeline, FBX when Unity or Unreal is the target and you need rigs and animation.