Pack a glTF into a single GLB file. It is converted in your browser, so the file never leaves your device.
Drop glTF files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop glTF files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. There is nothing else to set. The work happens in this tab.
Save the GLB, or download everything as one ZIP if you converted several files.
The glTF to GLB converter is part of this page and runs inside your browser. Your 3D models are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
A glTF is often a JSON file with separate data and texture files that must travel together. GLB packs all of it into one self-contained binary file, which web viewers, AR viewers and social platforms prefer.
The model is converted as triangles: lines and points are dropped, positions are used as they are, and no axis conversion is applied, so a model that is Y-up in glTF and Z-up in STL, OBJ and PLY is written exactly as it was read. Textures are not carried over, a glTF that points at a separate .bin file cannot be read from a single dropped file, and Draco or meshopt compressed geometry is refused with a message asking for an uncompressed export. Everything, geometry and colours, goes into one binary file. Models up to 3,000,000 triangles are accepted.
glTF is called the JPEG of 3D. A .gltf file is JSON describing a scene, with meshes, materials, animations and cameras, usually pointing at a separate binary data file and texture images. Version 2.0, from 2017, is an ISO standard.
Opens in Blender, web 3D viewers, game engines, Windows 3D Viewer and AR tools
glTF converterGLB packs a glTF scene, its geometry and its textures into one binary file, so it can be shared, uploaded or opened in an AR viewer without any companion files. Most 3D viewers on the web and social platforms prefer it.
Opens in Blender, web 3D viewers, game engines, Windows 3D Viewer and AR tools
GLB converter| GLTFglTF 3D scene | GLBGLB 3D model | |
|---|---|---|
| Stands for | GL Transmission Format | Binary glTF |
| Type | 3D scene | 3D scene |
| Compression | None (JSON text) | None |
| Introduced | 2015, by the Khronos Group | 2015, by the Khronos Group |
| Opens in | Blender, web 3D viewers, game engines, Windows 3D Viewer and AR tools | Blender, web 3D viewers, game engines, Windows 3D Viewer and AR tools |
| Best for | 3D on the web and in real-time engines | Sharing one self-contained 3D model for the web or AR |
| File extension | .gltf | .glb |
No. The glTF to GLB conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
No further quality is lost: GLB stores the decoded audio exactly. The result is identical in content.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the glTF file, press Convert and save the GLB. There is nothing to install.
Yes. Models up to 150 MB and 3,000,000 triangles are accepted; a larger one is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.