Joann provides free patterns in the Yarn and Needles Projects & Inspiration section of its website. Once there, use the limit feature on the left-hand side of the screen to limit the results to only knitting projects.
Free patterns from Joann include knitted accessories, clothing and blankets. Selecting a knitting project provides information on the skill level required and the crafting time for the project. A list of required materials, all available from Joann, precedes the pattern instructions, which can be read online or printed, with some available as PDF downloads. Most of the free patterns are courtesy of the yarn companies, including Lion Brand and Bernat.