One resource for free, online ruffle scarf patterns for knitters is Yarn.com. The site lists patterns by the brand of yarn used and offers free patterns as portable document files.
Some examples of the types of ruffle scarf patterns available from Yarn.com include scarves made using the garter stitch only, spiral ruffle scarves, patterns that use chunky yarn, and patterns for ruffled loop or twisty scarves. For free ruffle scarf patterns created by either independent knitters or various yarn companies, visit AllFreeKnitting.com. Users and visitors to the site upload and review patterns. A frequent contributor is Red Heart yarn company. The patterns on this site open in the webpage.
Free crochet patterns as downloaded documents are available from RedHeart.com. A resource for user-generated crochet patterns is Favecrafts.net. Also called potato chip scarves by the site, ruffle scarf patterns are contributed by site members as well as makers of yarn, such as Lion Brand Yarn. Patterns from this site open in a new browser tab. Learning to crochet ruffles is a simple technique that can add visual interest to projects, according to Favecrafts.net.
Patterns from all of these sites instruct the user on the difficulty level, type and quantity of yarn, and gauge of needles or hooks required for each project.