Convert X to GLTF

Convert X files to GLTF locally, completely free and with maximum privacy.

Drag and drop your files here

or click to browse local files (large files supported, limited only by browser RAM)

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How to convert X to GLTF

  1. Drop your .x files above, or click Upload Files. You can add many files at once.
  2. GLTF is already selected as the output. Open the settings (gear icon) to fine-tune the result.
  3. Click Convert All. Assimp and three.js runs inside your browser through WebAssembly; nothing is uploaded.
  4. Download your .gltf files as soon as each one finishes.

What to know about X to GLTF conversion

  • Geometry, materials and embedded textures are preserved in the GLTF output when the source contains them.

X vs GLTF

FeatureX (DirectX Model)GLTF (glTF 2.0 (JSON))
Materials and texturesYesYes
Animation and riggingYesYes
Best formodels from legacy DirectX gamesweb 3D in a human-readable JSON format
Opens inBlender (with add-ons) and older DirectX toolsBlender, three.js, Unity, Unreal and online viewers

X (DirectX Model): The legacy Microsoft DirectX mesh format used by older games.

GLTF (glTF 2.0 (JSON)): The JSON form of the Khronos glTF 2.0 3D transmission format, here with embedded buffers.

Conversion options

  • Custom output file name

Frequently asked questions

Is it safe to convert X to GLTF here?

Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.

Is there a file size limit?

There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.

Can I convert several X files at once?

Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.

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