MD2 to STL Converter
FileFlip converts MD2 to STL entirely inside your browser, using Assimp compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert an MD2 file to STL?#
- Drop your MD2 file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to STL and the conversion starts on its own. FileFlip downloads 11.2 MB of WebAssembly the first time and nothing after that, then runs Assimp on your own machine.
- Save the STL file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting MD2 to STL lose quality?#
Not in the sense of pixels or samples. Converting MD2 to STL rebuilds the file in STL's own model rather than re-encoding it, so everything STL can represent comes through exactly and anything it cannot has to be dropped. Expect the geometry to be exact, and anything the target has no place for, such as a rig, to be left behind.
Is it safe to convert MD2 files online?#
Yes, because nothing is uploaded. FileFlip converts MD2 files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What MD2 to STL actually does to the file#
Converting MD2 to STL runs on Assimp, downloads 11.2 MB of WebAssembly the first time and nothing after that, rebuilds the file in the target's own model, and drops materials, textures and skeleton and animation.
| Engine | Assimp |
|---|---|
| Conversion path | One step: MD2 → STL |
| Downloaded to your browser | 11.2 MB, once, then cached by your browser |
| Quality | Rebuilt in the target's model |
| You get back | One file |
| Where it runs | In a background worker, so the page stays responsive |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| Materials | Dropped | The target format has nowhere to put it. |
| Textures | Dropped | The target format has nowhere to put it. |
| Skeleton and animation | Dropped | The target format has nowhere to put it. |
Worth knowing before you start:
- the target stores triangles and nothing else, so materials, colours, and texture coordinates have nowhere to go
- if the source carries a skeleton or animation, this target has no place to store it
What is an MD2 file?#
An MD2 file is a Quake II character or object model in which every animation frame stores a full snapshot of every vertex's position, quantized to a byte per axis, rather than any kind of skeleton.
Reach for MD2 only when working directly inside Quake II's modding pipeline or a source port that still loads it natively.
Convert an MD2 file to a modern interchange format when the model needs to move into current 3D software, since almost nothing outside Quake II tooling reads it directly.
What is an STL file?#
An STL file is a triangle mesh created by 3D Systems in 1987 for its stereolithography 3D printers, storing nothing but a flat list of triangle facets and their normals, with no colour, material or unit of measurement attached.
Use STL when the only destination is a 3D printer's slicer, which is all the format was designed to feed.
Convert STL to 3MF when colour, material or unit information needs to travel with the geometry, since STL has nowhere to put any of it.
MD2 to STL questions people ask#
What is an MD2 file?
An MD2 file is the model format Quake II used for characters, monsters and pickup items, storing animation as a full vertex snapshot for every frame instead of a skeleton. id Software introduced it with the game in 1997, and it defined how a generation of vertex-animated 3D games moved.
Can MD2 files still be opened today?
Yes. Modern Quake II source ports like Yamagi Quake II load MD2 files exactly as the original game did, and general-purpose viewers such as Noesis and older tools like MilkShape 3D also read them for inspection or conversion.
Why does MD2 animation look choppier than modern game characters?
MD2 has no skeleton, so an animation is just a fixed sequence of whole-mesh vertex positions with interpolation between frames. That rules out the smooth blending and procedural motion a skeletal rig allows, which is the main reason id Software moved on to skeletal animation for Doom 3's MD5 format a few years later.
What is an STL file used for?
An STL file is the standard input for 3D printer slicing software, storing a model's surface as a list of triangles with nothing else attached. Slicers use it to work out where to lay down material layer by layer.