3D Mesh Converters

Convert 3D geometry objects, meshes, and spatial models.

3D Models: OBJ, STL & GLTF Formats

3D geometry meshes, vertex coordinates, and 3D printing standards.

Private by Design

Files are processed locally in your browser with WebAssembly and HTML5 APIs. They never leave your device, so there are no server uploads or third-party file storage.

No Queues. No Speed Caps.

Start converting immediately on your own device - no upload wait, no download queue, and no throttling by a remote server.

Free, Unlimited Access

Use every available tool without creating an account, paying for a plan, or hitting an artificial file-size limit. Convert as often as your browser and device can handle.

Format Comparison & Technical Specifications

Output FormatMIME TypeSpecificationType
OBJ Wavefronttext/plainAUTODESK-DXF-SPECWavefront 3D Geometry
STL Stereolithographyapplication/slaAUTODESK-DXF-SPEC3D Print Mesh Format
PLY Polygonapplication/x-plySTANFORD-PLY-SPECStanford Polygon 3D Format
GLTF JSONmodel/gltf+jsonKHRONOS-GLTF-SPECGL Transmission Format JSON
GLB glTF Binarymodel/gltf-binaryKHRONOS-GLTF-SPECSelf-Contained Binary glTF
FBX Autodeskapplication/octet-streamAUTODESK-FBX-SPECAutodesk FilmBox 3D Asset

Technical Specifications & Codec Breakdown

STL for 3D Printing, OBJ & GLTF for Digital Art

STL stores raw triangular mesh surfaces with zero color or texture data - perfect for 3D slicing software and 3D printers. OBJ and modern GLTF store vertices, normals, UV texture coordinates, and materials for video games and web 3D.

GLTF: The JPEG of 3D Graphics

Khronos Group designed GLTF to be the compact, web-ready 3D standard. Unlike heavy CAD files, GLTF packs geometry, shaders, and animations into a streamlined binary container that loads instantly in web browsers.

Useful info

0 bytes uploaded to external servers. All processing occurred locally in your browser sandbox.