GuidePatterns.com offers an array of printable stained glass patterns that range from simple beginner patterns to ornate patterns for experienced glass workers. DelphiGlass.com offers free patterns that can be printed and used to make panels, suncatchers, boxes and stained glass jewelry.
FreePatternsForStainedGlass.com offers hundreds of free, printable stained glass patterns along with glass safety tips, instructions and tutorials as of 2015. The website also provides a search feature that glass crafters use to locate specific patterns according to style or purpose.
GlassCrafters.biz offers free PDF pattern files that can be downloaded and printed. The company also sells stained glass tools, e-books, came and copper foil.