X_ITE
X_ITE X3D Browser, view and manipulate X3D, VRML, glTF and other 3D sources in HTML.
Programing Language: JavaScript
gltf-builder
JS library for building glTF models programmatically. It aims to make procedural generation easier by letting you build up a model piece-by-piece without having to worry about the structure of the glTF file format itself.
Khronos glTF Compressor
Khronos sample viewer with compression capabilities
RapidCompact
The tool that streamlines your 3D workflows. Best-in-Class 3D Optimizer | 3D Format Conversion | Material Baker | Compression | Delivery Presets | On-Prem Option | REST API | One Single, Automatable Pipeline.