Free online TGA to GLTF converter

What the TGA format is

TGA, also called Truevision TGA or TARGA, is a raster image format commonly used for 3D textures, including color maps, transparency maps, normal maps, and other material data. It supports grayscale, 16-bit, 24-bit, and 32-bit images, with optional alpha channels and RLE compression.

3D applications and texture tools such as Blender, Autodesk 3ds Max, Autodesk Maya, Substance 3D Painter, Photoshop, and GIMP can create or edit TGA files. You may encounter TGA assets in older game projects, texture libraries, visual-effects workflows, and exported material folders.

What the GLTF format is

glTF is a Khronos Group format for transmitting 3D scenes and models. It can contain meshes, node hierarchies, cameras, animations, materials, and references to image textures. The format is designed for real-time display in browsers, game engines, AR applications, and 3D viewers.

A .gltf file is normally accompanied by a binary .bin file and separate image files. A .glb file is the single-file binary form and can embed geometry, materials, and textures. glTF commonly uses PNG or JPEG textures; TGA images are generally converted during export.

How to actually convert TGA to GLTF

Use Blender when the TGA is a texture for an existing model or a mesh that you can create. The workflow is texture import, material assignment, and glTF export:

1. Open Blender and create or import the mesh that the TGA should cover. A TGA contains no vertices, faces, UV coordinates, or camera data.
2. Open the Shading workspace, select the mesh, and create or select a material.
3. Add an Image Texture node, click Open, and select the .tga file. Connect its Color output to the Principled BSDF Base Color input.
4. For transparency, connect the image Alpha output to the Principled BSDF Alpha input. In the material settings, set Settings → Surface Render Method to Dithered or Blended, depending on the Blender version and the required result.
5. For a normal-map TGA, set the Image Texture node to Non-Color, connect it to a Normal Map node, and connect that node to the Principled BSDF Normal input. Do not treat roughness, metallic, or ambient-occlusion maps as sRGB color images.
6. Check the UV layout in the UV Editing workspace and verify the material in Material Preview or Rendered view.
7. Choose File → Export → glTF 2.0. Select GLB for one self-contained file, or glTF Separate when you need editable external textures and a separate .bin file.
8. Enable Include → Selected Objects if only the chosen mesh should be exported, then export the file. Blender converts unsupported texture formats to formats appropriate for glTF during export; verify the resulting GLB or glTF in a second viewer.

You can also use the free converter on 101convert.com without installing software. Because the source is an image rather than a 3D scene, check what geometry the service generates or requires; an image-to-model result may be only a textured plane and will not recreate a missing mesh.

Quality and compatibility limits

• The conversion cannot reconstruct 3D shape, depth, UV coordinates, rigging, animation, or material intent from pixels in a TGA. Use the original model if those elements are required.
• Export to GLB when portability matters. Separate .gltf exports require the JSON file, the binary buffer, and every referenced texture to remain together with unchanged relative paths.
• Use PNG for lossless textures that contain transparency or sharp masks. JPEG can reduce file size for opaque color maps but introduces compression artifacts.
• Preserve alpha only when the destination viewer supports the selected glTF alpha mode. Masked transparency uses a cutoff threshold; blended transparency can sort imperfectly in overlapping surfaces.
• Large TGA dimensions increase memory use after export. Resize textures to the resolution needed by the target application, and test mipmapping and filtering in that application.
• glTF stores material parameters rather than every feature of a native 3D package. Layered TGA workflows, custom shader channels, and unsupported procedural effects may need to be baked into images before export.