glTF to GLB Converter

Free Online glTF/GLB Format Converter

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Drag & drop glTF or GLB files here, or browse

glTF files convert to GLB, GLB files convert to glTF

How It Works

Add 3D model files Drag and drop glTF or GLB files, or click to browse. Each file will be converted to the opposite format.
Review conversions See which files will be converted: glTF files become GLB, and GLB files become glTF.
Convert Click convert to process all files. Conversion happens instantly in your browser.
Download Download converted files individually or as a ZIP archive.

Features

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Private & Secure All processing happens in your browser. Your 3D files are never uploaded to any server.
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Bidirectional Conversion Convert glTF to GLB or GLB to glTF. Both directions are fully supported.
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Batch Conversion Convert multiple 3D models at once and download them individually or as a ZIP.
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Instant Processing Uses glTF-Transform to convert files directly in your browser with no server roundtrip.
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Lossless Conversion No quality loss during conversion. Geometry, materials, textures, and animations are fully preserved.
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Single File Output GLB packs everything - geometry, textures, animations - into one portable binary file.

Supported Formats

glTF
GLB

FAQ

What is the difference between glTF and GLB?

glTF is a JSON-based format that can reference external files (binary buffers, textures). GLB is the binary version that packs everything into a single file, making it easier to share and deploy.

Is the conversion lossless?

Yes. Converting between glTF and GLB is a packaging change, not a quality change. All geometry, materials, textures, and animations are preserved exactly.

When should I use GLB vs glTF?

Use GLB when you need a single portable file - for web delivery, sharing, or uploading to platforms. Use glTF when you need to inspect or edit the JSON structure, or when you want to share textures separately.

Can I convert multiple files at once?

Yes. Add as many glTF and GLB files as you like. Each will be converted to the opposite format. Download results individually or as a ZIP.