OFF File Converter | Export OFF to STL, OBJ, SKP, STEP, IGES

Import, export, and convert many 3D mesh and solid file formats including STL (Stereo-Lithography), SKP (SketchUp), OBJ (Wavefront), FBX (Filmbox), STEP (Standardized Exchange), and others.

Automapki Application

Overlay DWG drawing entities on top of public satellite imagery provided by Open Street Map, Map Quest, Open Aerial, or any user defined WMS / WTS base layers.

Autoshaper

Convert mesh to NURBS and import / export 3D file formats with NURBS solid shapes including STEP (Standardized Exchange of Product), 3DM (Rhino), IGES, and BREP, with automatic NURBS surface reconstruction.

Automesher Application

Convert polyface mesh to solid and import / export many 3D mesh and solid file formats including STL (Stereo-Lithography), SKP (Trimble SketchUp), OBJ (Wavefront), 3DM (Rhino), and others.

OFF OFF File Format - 3D Object File for Polygon Meshes

The OFF (Object File Format) is a simple, ASCII-based 3D file format used for representing polygonal geometry in a lightweight, non-proprietary structure. Designed for academic and development use, the OFF format efficiently stores 3D model data using only vertices, faces, and optional edge information - ideal for geometry-focused workflows without material or texture metadata.

OFF File Features

Editable ASCII Structure: OFF files are plain text, easily viewable and editable in any standard text editor, making them perfect for manual modeling or debugging.
Supports Polygonal Geometry: Store 3D shapes using triangle meshes, quadrilaterals, or general polygons. Each face is defined by a list of vertex indices, allowing flexible model design.
Lightweight and Minimal: Unlike complex CAD formats, OFF excludes materials, textures, and metadata, focusing purely on geometric structure for fast, efficient modeling.

Convert OFF Files to Other 3D Formats

Our 3D conversion tools make working with OFF files fast and flexible. Autoconverter enables direct conversion of OFF mesh models to popular formats such as STL, OBJ, SKP (SketchUp), and PLY - preserving polygonal integrity throughout. For advanced workflows, Autoshaper can convert OFF files into NURBS-based formats like STEP, IGES, and BREP, ideal for CAD software and precision manufacturing.

Try our OFF file converters today - import, export, and transform polygonal data effortlessly into your preferred 3D format.