Free 3D Format Converter
Convert common GLB, OBJ, and STL model files locally in the browser for 3D handoff workflows.
Convert common 3D model formats locally without uploading the file.
About this tool: Free 3D Format Converter
Convert GLB, OBJ, and STL model files locally in the browser for common 3D handoff workflows. No upload required — everything runs locally in your browser for privacy and speed.
Common use cases
- Conversions run locally in the browser, so no model upload is required.
- STL output keeps geometry only and drops materials or textures by design.
- For production-critical assets, open the converted file in your target DCC or slicer before delivery.
Converting between 3D formats
Every 3D format is a trade: GLB keeps the look, STL keeps only geometry, OBJ keeps compatibility. Pick the destination first, then convert from the richest file you own so the loss happens once, at the end.
Converting without compounding the loss
- 1
Name the destination before you choose
Printing means STL. An older editor means OBJ. A website or engine means GLB. The destination decides the format, not the other way round.
- 2
Always convert from the master
Convert from the original GLB. Chaining STL to OBJ to GLB applies the loss twice, and nothing restores what the first step dropped.
- 3
Verify the result
Open the converted file in a viewer for shape, then import it once in your DCC or engine to confirm triangle count and bounding box survived.
3D conversion questions
- Which conversions can I do here?
- GLB to OBJ, GLB to STL, OBJ to GLB and STL to OBJ — the four pairs 3D handoffs actually need.
- Does converting cost anything?
- No. Conversion runs locally in your browser and spends no credits.
- Can converting restore a missing texture?
- No. Only the original file has it; conversion can drop data but never invent it.
Quick tips
- Conversions run locally in the browser, so no model upload is required.
- STL output keeps geometry only and drops materials or textures by design.
- For production-critical assets, open the converted file in your target DCC or slicer before delivery.
Related free tools
Free GLB to OBJ Converter
Convert GLB to OBJ locally in your browser for Blender, Maya, CAD review, or mesh handoff.
Free GLB to STL Converter
Convert GLB to STL locally for geometry-only 3D printing checks, slicers, and manufacturing review.
Free OBJ to GLB Converter
Convert OBJ to GLB locally in the browser for compact web previews, game handoff, or Pixal3D review.
Free STL to OBJ Converter
Convert STL to OBJ locally in the browser when geometry needs a more editable mesh exchange format.
Related 3D guides and workspaces
- Photo to 3D ModelHow to shoot a photo that converts well, what fails, and what the GLB contains.
- 2D Image to 3D ModelPrepare illustrations, renders, and sprites, and know what the back side invents.
- 3D Pixel: Pixel-Aligned Image to 3DPixel-aligned criteria, source-image checks, and voxel/texel resolution for a GLB.
- 3D AI: AI 3D Model GenerationChoose between Pixal3D, Trellis 2, and Hunyuan Motion before spending credits.
- 3D Object CreatorWhich object classes convert well from one image, and how the presets steer the mesh.
- Image to MeshWhat the generated GLB geometry contains, and how to inspect and repair it.
- 3D Asset GeneratorThe handoff checklist for scale, textures, triangle budget, and engine import.
- 3D Printing AIGenerate a GLB from one photo, convert it to STL, and check it before slicing.
- Text to MotionDescribe an action and generate FBX motion plus motion JSON instead of a mesh.
- Image to 3D for ShopifyTurn a packshot into a GLB, inspect it, and test it on a product page.
- Image to 3D Model FreeExactly what a hosted job costs, and which browser tools need no account.
- Open Source Image to 3DWhich upstream models are public with their own licences, and what is hosted.
- AI Generated 3D ModelsWhat one image produces, and the checks to run before you use the result.
- Image to 3D Model GeneratorPixel-aligned image-to-3D with GLB preview, PBR textures, and motion output.
- AI Image Generator WorkspaceText-to-image, image-to-image, and photo editing in one hosted workbench.
- AI Video Generator WorkspaceSeedance 2.0 text-to-video, image-to-video, and reference-to-video.