ASK to FBX Converter
FileFlip converts ASK to FBX 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 ASK file to FBX?#
- Drop your ASK 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 FBX 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 FBX file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting ASK to FBX lose quality?#
Not in the sense of pixels or samples. Converting ASK to FBX rebuilds the file in FBX's own model rather than re-encoding it, so everything FBX 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 ASK files online?#
Yes, because nothing is uploaded. FileFlip converts ASK 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 ASK to FBX actually does to the file#
Converting ASK to FBX 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.
| Engine | Assimp |
|---|---|
| Conversion path | One step: ASK → FBX |
| 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 | Sometimes | Survives for some files and not others. |
| Textures | Sometimes | Survives for some files and not others. |
| Skeleton and animation | Sometimes | Survives for some files and not others. |
What is an ASK file?#
An ASK file holds 3ds Max ASCII Scene Export text under an alternate extension; readers that support ASE, including Assimp, parse ASK with the identical parser because the file content is the same format.
Treat an ASK file exactly like an ASE file; there's no reason to prefer one extension over the other.
Convert ASK the same way you would ASE, to FBX or glTF, once the scene needs to leave whatever tool produced it.
What is an FBX file?#
An FBX file is Autodesk's proprietary binary or ASCII scene format, originally built by Kaydara for its Filmbox motion-capture software in 1996, that carries a full scene, meshes, materials, skeletons, skinning and animation together in one container.
Use FBX when a full rigged, animated scene needs to move between a DCC tool and a game engine, since almost every pipeline tool expects it.
Convert an FBX file when the destination needs an open, patent-unencumbered format, or when the application that wrote it isn't the one reading it and something is coming through wrong.
ASK to FBX questions people ask#
What is an ASK file?
An ASK file is 3ds Max ASCII Scene Export content saved with a .ask extension instead of .ase. It is not a separately specified format: every tool that reads ASE, including Assimp, reads ASK with the same parser because the text inside is identical.
Is ASK the same as ASE?
Functionally, yes. An ASK file uses the same ASCII Scene Export syntax as an ASE file, just under a different extension, and no published specification treats ASK as a distinct format.
What opens ASK files?
Anything that reads ASE opens ASK, since the two are handled by the same parser. 3ds Max can export the format but has no built-in importer for either extension, so reading one back in needs a script or plugin.
What software opens FBX files?
Blender, Autodesk Maya, 3ds Max, Unity and Unreal Engine all open FBX files, since it's the format most 3D and game pipelines use to move scenes between tools. Which application wrote the file matters more than which one is opening it, because FBX exporters don't all interpret the format identically.