GLB / GLTF Thumbnail Generator

A fast, portable batch thumbnail generator for .glb and .gltf files — built for artists, game developers, asset libraries, and 3D pipelines.

Generate clean preview thumbnails for entire folders of 3D assets automatically, including deeply nested directory structures. No Blender scripting setup, no command-line workflow, and no installation headaches.

FeaturesBatch Thumbnail Generation

Automatically create thumbnails for hundreds or thousands of .glb and .gltf assets in one run.

Recursive Folder Scanning

Processes complete folder structures and subfolders automatically.

Portable Single EXE

One standalone executable with zero installation required.
Just launch and use.

Modern Electron Interface

Clean desktop UI with:

• Live thumbnail preview grid
• Progress tracking
• Real-time logging panel
• Simple folder selection workflow

Robust Path Handling

Built to properly support:

• Spaces in file paths
• Multiple drives
• Deep directory structures
• Large asset libraries

Pipeline Friendly

Useful for:

• Asset marketplaces
• Game development pipelines
• Kitbash libraries
• Archviz assets
• Internal studio libraries
• Dataset preparation

Ideal For

• 3D artists
• Technical artists
• Game developers
• Asset store creators
• Blender users
• Unreal Engine / Unity workflows
• Anyone managing large GLB libraries

Why Use It?

Managing large collections of GLB/GLTF files without previews is painful.
This tool automates thumbnail generation so your asset libraries become visually searchable instantly.

Instead of manually opening files one by one, generate previews for entire libraries in minutes.

Planned / Upcoming Features

• Custom application icon
• Drag & drop folder support
• Contact sheet export
• Additional thumbnail styles
• GitHub releases & versioning
• Improved rendering presets

Portable Workflow

1. Launch the EXE
2. Select a folder
3. Generate thumbnails
4. Done

No dependencies. No setup. No technical configuration required.

Supported Formats

• .glb
• .gltf

Built With

• Electron
• Node.js
• Automated rendering pipeline

Perfect for organizing, previewing, and managing modern 3D asset libraries.