Dwg To Pat File Converter Online [updated] Jun 2026

A PAT file (Pattern File) is an ASCII text file that defines hatch patterns for AutoCAD and other CAD software. Unlike image-based patterns (JPEG or PNG), PAT files are vector-based and scale infinitely. They define a "tile" or "unit" that repeats infinitely in the X and Y axes.

If you want to understand the process or need to create a pattern without specialized tools, manual creation is a great option. Here’s how to manually write a PAT definition:

Start with Hatchery for complex, curved patterns. Use PATtern Pro Web for simple geometric tile layouts. Always, always clean your DWG file before uploading. Follow this guide, and you will never be stuck with the boring default AutoCAD hatch patterns again. dwg to pat file converter online

Save your new .pat file with a descriptive name (e.g., Custom_Brick.pat ). Ensure the name inside the text file matches the filename itself.

Note the folder paths listed, or add your own custom folder. Paste your .pat file into that designated support folder. A PAT file (Pattern File) is an ASCII

A DWG (Drawing) file is a proprietary binary file format used for storing two and three-dimensional design data. Created by Autodesk, it is the industry standard for architectural drawings, engineering schematics, and product designs. DWG files store vector image data and metadata.

Click "Convert." The server will analyze the vectors inside your bounding box. It will then generate a .pat text file. Download this file. If you want to understand the process or

A simple text-based file format used by AutoCAD to define a repeating, tiled pattern of lines.