MD2 to STL Converter
Processing entirely on your device — large files may take a moment.
MD2 is the Quake II model format — a single vertex-animated mesh with keyframed frames baked in. Thousands of classic game models exist in it. STL is what 3D printers and slicing software (Cura, PrusaSlicer) expect — the final step before printing.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How MD2 compares to STL
| MD2 | STL | |
|---|---|---|
| Structure | IDP2 header + frames + GL commands | Triangle mesh only |
| Compatibility | Quake II, three.js, ioquake3 | All slicers and CAD |
| Best for | Retro game model conversion | 3D printing |
How to convert MD2 to STL
- 1
Select your files
Drag & drop your MD2 files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to STL". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted STL file individually, or grab everything at once as a ZIP archive.
About the MD2 format
MD2 is Quake II's model format: one mesh whose frames are baked vertex-by-vertex into the file — the original "vertex animation" that predates skeletal rigging. Every enemy, weapon and pickup in Quake II (1997) is an MD2, and the format became the de-facto standard for early modding.
three.js parses MD2 including its frame data, so a converted glTF carries the animation frames as morph targets — the retro look arrives intact in modern engines.
+ Strengths
- ✓Huge library of classic models
- ✓Frame data survives as morph targets
- ✓Simple binary layout
! Limitations
- −Fixed 8-bit texture skin
- −Small vertex budgets by modern standards
- −No materials beyond one skin
About the STL format
STL (STereoLithography, 3D Systems, 1987) is the format 3D printing was built on. It stores exactly one thing: a mesh of triangles with normal vectors — no color, no texture, no units, no hierarchy. Slicers assume millimeters and treat the surface as the whole truth, which is all a printer ever needs.
That minimalism cuts both ways. Every slicer and CAD tool on earth reads STL, and files are simple to repair and check (watertightness, manifold edges). But smooth curved surfaces need thousands of triangles, so STL files bloat quickly, and any appearance data is lost the moment you convert to it.
+ Strengths
- ✓Universal in 3D printing — every slicer reads it
- ✓Dead-simple geometry, easy to validate and repair
- ✓Binary variant is compact for its content
! Limitations
- −No color, materials or texture whatsoever
- −No units — slicers assume millimeters
- −Curved surfaces need huge triangle counts
Why convert MD2 to STL?
Converting makes sense where the strengths of STL meet what MD2 cannot give you. Universal in 3D printing — every slicer reads it Meanwhile Fixed 8-bit texture skin One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this MD2 to STL converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
What happens to colors and materials?
The STL format only stores geometry, so colors, textures and materials from the source file are dropped — the shape converts perfectly, appearance does not. If you need materials, convert to GLB instead.
How large can the MD2 file be?
Everything runs on your device, so memory is the only ceiling. Dense meshes with millions of triangles convert fine on a desktop computer, just over a slightly longer coffee break.
Does the scale or orientation of the model change?
Vertex data is converted as-is. Formats without a unit system (like STL) are interpreted as millimeters by most 3D-printing tools — scale before converting if your model uses different units.