windows app

Convert STL to GLB

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

offlinewindows 10 & 11free

Get it onMicrosoft Storecoming soon to the Microsoft Store

stlglb

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 .stl files in File Explorer — "Convert to GLB" 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

STL to GLB on your pc

STL to GLB Converter helps you convert STL 3D models to GLB on Windows with a clean workflow that stays on your device.

how it works

This app uses the three.js library to convert your 3D models locally on your Windows PC. Convert stl to glb without uploads, sign-in, or cloud processing.

paste from clipboard

Press Ctrl+V to drop a 3D model from the clipboard straight into the queue. If you copied a model from another app, it is ready to convert right away.

batch conversion

Run one job on a whole folder of 3D models at once. Sub-folders are preserved at the output side, so a folder with 200 models in 10 subfolders keeps the same shape after conversion.

auto-convert watcher

Open the Auto-convert page, choose a watched folder and an output folder, then let the app stay in the Windows system tray. Drop a fresh export there and the converted 3D model appears in the output folder in the background.

right-click in explorer

A native shell extension adds Convert to GLB to the right-click menu for .stl files in File Explorer. It opens the app with your selection already loaded, so you can start faster.

languages & themes

The UI ships in ten languages. Light and dark themes follow the Windows system theme automatically.

offline by design

There is no telemetry, no account, and no user-data exfiltration. Your 3D models never leave the device.

free & pro

The free version lets you convert STL to GLB 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.

Get it onMicrosoft Storecoming soon to the Microsoft Store