MD5ANIM to STL Converter
FileFlip converts MD5ANIM 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 MD5ANIM file to STL?#
- Drop your MD5ANIM 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 MD5ANIM to STL lose quality?#
Not in the sense of pixels or samples. Converting MD5ANIM 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 MD5ANIM files online?#
Yes, because nothing is uploaded. FileFlip converts MD5ANIM 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 MD5ANIM to STL actually does to the file#
Converting MD5ANIM 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: MD5ANIM → 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 MD5ANIM file?#
An MD5ANIM file is a Doom 3 skeletal animation, a plain-text list of joint transforms keyframed over time that drives any MD5MESH sharing the same joint hierarchy.
Use MD5ANIM when authoring or modding character animation for Doom 3 or another id Tech 4 game.
Convert MD5ANIM to a modern interchange format when the animation needs to drive a rig outside id Tech 4, since the format only means anything alongside a matching MD5MESH skeleton.
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.
MD5ANIM to STL questions people ask#
What is an MD5ANIM file?
An MD5ANIM file holds the skeletal animation for a Doom 3 model, a plain-text sequence of keyframed joint transforms rather than any geometry of its own. It's meant to be loaded alongside an MD5MESH file whose joints it drives.
Can one MD5ANIM file work with different characters?
Yes, as long as the characters' MD5MESH files share the exact same joint hierarchy. That reuse, one animation driving many models, is the main reason id Software split Doom 3's skeleton and mesh data (MD5MESH) from its keyframe data (MD5ANIM) instead of keeping them in one file.
What opens MD5ANIM files today?
The open-source dhewm3 source port runs Doom 3's original MD5ANIM files the same way the retail engine did. Viewers like Noesis and editors like QuArK also read MD5ANIM for inspection or conversion outside the game.
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.