Sketch Extensions - An official collection of Sketch extensions & plugins
Select Similar Layers - Sketch plugin to select layers with the same attributes
YayText! - ๐ข๐พ๐น๐ฎ๐ป ๐ฌ๐ธ๐ธ๐ต ๐พ๐ท๐ฒ๐ฌ๐ธ๐ญ๐ฎ ๐ฝ๐ฎ๐๐ฝ ๐ถ๐ช๐ฐ๐ฒ๐ฌ
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
Base UI Sketch Framework - Huge set of everything you need to design and prototype
Fluid for Sketch - Sketch plugin to make your responsive designs more efficient