Keyword research tools allow you to quickly discover relevant keywords for your clients’ SEO campaigns. Pro tip Bookmark our in-depth Google Keyword Planner Guide for step-by-step instructions on setting up your account. You can generate new keyword ideas from a seed keyword with Google Keyword Planner. SEO SpiderThe SEO Spider tool is a desktop application by Screaming Frog that crawls your website and looks for technical issues. SEO Writing AssistantSemrush’s SEO Writing Assistant analyzes text for readability, SEO, tone of voice, and plagiarism issues.