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Welcome to the home of the Open Pattern Format documentation. Here you will find everything you need relating to the Open Pattern Format whether you are a yarn crafter, designer or developer.

Overview

The Open Pattern Format or OPAF for short is a comprehensive file format specification for digital yarn craft patterns and projects. The specification covers all elements which make up your average pattern including metadata, components, instructions and charts.

Features

  • Structured metadata
  • Configurable & customisable
  • Standardised terminology
  • Interactive instructions & charts
  • Project tracking
  • XML based (can be read in any text editor)
  • Free, open source & permissive