WordCounter.net - Count words, sentences, paragraphs etc.
SketchTool - Export pages & slices out of .sketch docs using CLI
Word Count Tools - The must-have free word counter that provides an extensive report about the word count, character count, keyword density, readability & many other useful stats.
Select Similar Layers - Sketch plugin to select layers with the same attributes
NimbleText - NimbleText is a text manipulation and code generation tool available online or as a free download.
Base UI Sketch Framework - Huge set of everything you need to design and prototype