Free online ABC to GLB converter

Source format: abc

ABC usually refers to Alembic, a widely used 3D interchange format for storing animated geometry, camera data, and scene caches. It is common in VFX, animation, and game production pipelines because it preserves baked motion and complex mesh animation efficiently. ABC files are typically used to move data between tools such as Maya, Houdini, Blender, Cinema 4D, and other 3D applications.

Alembic is especially useful when you need to transfer finalized animation rather than editable rig controls. It is often used for caches of characters, crowds, simulations, and environment animation.

Target format: glb

GLB is the binary form of glTF 2.0, a modern 3D asset format designed for efficient delivery and real-time rendering. It packages the model, materials, textures, and scene data into a single file, which makes it convenient for web viewers, AR/VR, game engines, and real-time applications.

The main advantages of GLB are compact size, fast loading, and broad support in engines and viewers that implement glTF 2.0. It is commonly used for distributing 3D models on the web and in interactive applications.

How to perform the conversion

Converting .abc to .glb is not always a direct one-click workflow because Alembic and glTF serve different purposes. The best results usually come from a 3D application that can import Alembic and export glTF/GLB, such as Blender.

1. Open Blender.
2. Import the Alembic file with File → Import → Alembic (.abc).
3. Check the imported scene, materials, scale, and animation.
4. If needed, apply or simplify materials so they are compatible with glTF.
5. Export the file with File → Export → glTF 2.0.
6. In the export options, choose GLB as the format so everything is saved into one binary file.
7. Save the result as filename.glb.

If you prefer a command-line workflow, you can also use conversion pipelines based on Blender scripting or other DCC tools that support both import and export. For quick browser-based conversion, you can convert the file on 101convert.com for free, without installing any software.

Notes on quality, compatibility, or limitations

This conversion can be lossy because Alembic and glTF do not store the same kinds of data. ABC often contains baked animation, caches, and scene information that may not map perfectly to GLB. In particular, rigging, complex shaders, custom attributes, and simulation data may be reduced, baked, or omitted.

For best results, use models with simple PBR materials, standard UVs, and textures that glTF supports well. Animated meshes may export correctly if they are already baked, but very large caches can produce heavy GLB files. Always verify the output in a glTF viewer or target engine after conversion.