ENFF Converter
FileFlip converts ENFF files into 14 other formats entirely inside your browser, using Assimp compiled to WebAssembly. The ENFF file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account to create.
How do I convert an ENFF file?#
- Drop your ENFF file onto the converter at the top of this page, or click it to pick one from your computer.
- Choose the format you want out of it. FileFlip downloads the engine that conversion needs, once, and your browser caches it.
- Conversion starts the moment you pick the format, and the result is yours to download. The work happens in this tab, so nothing is uploaded and nothing is queued.
Is it safe to convert ENFF files online?#
Yes, because nothing is uploaded. FileFlip converts ENFF 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 happens to a ENFF file#
FileFlip converts ENFF into 14 formats with Assimp, all of it inside the browser tab. Each conversion below names the engine it uses, what it downloads, and exactly what that conversion keeps or drops.
| Category | 3D Models |
|---|---|
| File extension | .enff |
| FileFlip support | Read only, so it is a source rather than a target |
| Conversions available | 14 |
| Engines | Assimp |
| Downloaded to your browser | 11.2 MB on the first conversion, then cached |
What is an ENFF file?#
An ENFF file is plain text written to the Extensions of the Neutral File Format document dated April 16, 1993, which adds positional lights with intensity and colour, an ambient shading term, and Bezier and NURBS surface patches on top of the base NFF primitives.
Use ENFF only alongside an existing renderer or scene archive that already relies on its Bezier or NURBS extensions to NFF.
Convert ENFF to OBJ or another mesh format once its patches have been tessellated into polygons a modern application can open.
The ENFF file format reference covers the specification, the programs that open one, and what each conversion keeps or drops.
ENFF questions people ask#
What is an ENFF file?
An ENFF file is a Neutral File Format scene extended with positional lights, an ambient shading term, and Bezier and NURBS surface patches, on top of the spheres, cones and polygons the base NFF format supports. The extensions were documented on April 16, 1993.
How is ENFF different from NFF?
NFF describes a scene with simple primitives like spheres and flat polygons, while ENFF adds curved surfaces, Bezier and NURBS patches, along with richer positional lighting, on top of that same base syntax. An ENFF file with none of the extended features used is effectively an NFF file.
What software reads ENFF files?
Support is limited to the same small set of renderers and libraries that already handle plain NFF, with Assimp's importer being one of the few still maintained. There is no mainstream 3D application that opens ENFF directly.