3D File Compressor — Compress STL & GLB Models Online Free
Compress 3D model files in your browser. Simplify STL and GLB meshes to shrink files by up to 70% while keeping them printable — free, private, no upload.
Drop your STL or GLB file here, or click to browse
Files are processed in your browser — nothing is uploaded.
What is a 3D file compressor?
What is it
A 3D file compressor reduces the size of 3D model files like STL and GLB by simplifying the mesh and merging redundant vertices. filecompressor.app does this in your browser, so your designs stay private.
High-poly models often contain far more vertices than needed for printing or display, so compression can shrink them significantly while keeping the model usable.
How to compress a 3D model
How to use
Compressing a 3D file is quick and private:
- 1
Drop your STL or GLB file into the dropzone above, or click to browse.
- 2
The compressor simplifies the mesh and merges redundant vertices, then shows the new size and percentage saved.
- 3
Click Download to save the smaller model, ready for printing or web display.
Why use this 3D file compressor?
Why use it
Reduces STL and GLB files by up to 70% by merging redundant vertices.
100% private — models are processed in your browser and never uploaded.
Free with no sign-up, no watermarks, and no limits.
Keeps models printable and web-displayable at a chosen detail level.
Works on desktop and mobile with no app install.
FAQ
Common questions about this compression tool.
Frequently Asked Questions
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