Seolyzer - Seolyzer is the ultimate SEO tool that provides you with all the information you need to improve your website’s health and performance.
Screaming Frog SEO Spider - The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links...
SEOmator - SEO website analysis & audit tool
Netpeak Spider - A desktop tool for fast and comprehensive technical audit of the entire website.
Whatsmyserp - Powerful Rank & Serp Tracking. Completely Free.
Pulno - SEO Audit and Website Analysis. Pull up your SEO.