Pure Data

File Format
Name	Pure Data
Ontology	Electronic File Formats Audio and Music Pure Data
Extension(s)	.pd

Pure Data (Pd) is a free and open source visual programming language for audio and other multimedia. It is a data-flow programming language that uses "objects" connected by wires. In the tradition of modular synthesizers, Pure Data files are often known as "patches."

Identifying Pure Data patch files

Pure Data patch files use the extension .pd, a custom plaintext format consisting of newline-delimited commands. File tend to start with #N canvas and contain numerous lines starting with #X obj and #X connect.

The format is "officially undocumented" but contributors have developed a rough specification.

Links

• Official site
• Unofficial file format documentation
• Pure Data Patch Repository