windows app
Convert GLB to STL
Convert GLB 3D models to STL 3D models locally on Windows. No upload, no signup, no watermark.

features
what the app does
- Paste from clipboard — Ctrl+V joins the queue (e.g. a Win+Shift+S screenshot lands without saving to disk).
- Batch convert whole folders, sub-folder structure preserved.
- Auto-convert watcher — point the app at a watched folder; converted files appear in your output folder.
- Right-click .glb files in File Explorer — "Convert to STL" opens the app pre-loaded with your selection.
- Ten UI languages, light + dark themes following the system.
- Offline by design — no telemetry, no account, no user-data exfiltration.
details
GLB to STL on your pc
Convert glb to stl on Windows with a local app made for quick, private 3D model conversion.
how it works
GLB to STL Converter uses three.js to process your 3D models on your Windows device. Nothing is uploaded, and the converted STL 3D model is created locally.
paste from clipboard
Press Ctrl+V to drop a copied 3D model straight into the queue. It is a quick way to start when your model is already on the clipboard.
batch conversion
Convert whole folders of 3D models in one run. The output keeps the same sub-folder structure, so a folder with many nested models stays organized after conversion.
auto-convert watcher
Open the Auto-convert page, choose a watched folder and an output folder, and let the app keep working in the Windows system tray. Drop a fresh export in the watched folder and the converted copy appears in the output location.
right-click in explorer
A native shell extension adds Convert to STL to the right-click menu for .glb 3D models in File Explorer. The app opens with your selection already loaded, so you can start faster.
languages & themes
The UI ships in ten languages. Light and dark themes follow your Windows system theme automatically.
offline by design
No telemetry, no account, and no user-data exfiltration. Your 3D models stay on your device from start to finish.
free & pro
The free version lets you convert GLB to STL with no file size or file count limits. Upgrade to Pro with a one-time lifetime purchase to remove ads and unlock batch conversion. No subscriptions or recurring payments.
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