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.
Output File Type: glTF 2.0
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.
Filer
Govie Editor
Needle Engine
Wicked Engine
Open Brush
3D XR painting tool with support for glTF 2.0 import and export.
fastgltf
A modern C++17 glTF 2.0 library focused on speed, correctness, and usability