Free SEO Checker by Spotibo - An SEO checker that analyses based on Google's algorithm 👀
PowerMapper - Create visual HTML site maps and XML sitemaps for search engines of any web site quickly and easily.
SEO Analyzer By Neil Patel - A free SEO analyzer for your site
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
SEO Minion - Chrome extension & Firefox add-on to help you with SEO
A1 Sitemap Generator - A1 Sitemap Generator has been in active development and sold since 2005.