SEO Tools Centre provides SEO checker services for websites. Here you will find different types of free SEO tools: plagiarism checker, broken links analyzer and much more for free.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
ABBYY FineReader - ABBYY's latest PDF editor software, FineReader 16 you can easily convert files like PDF to Excel, PDF to Word, edit, share, collaborate & more with this PDF editor!
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Tesseract - Tesseract is an optical character recognition engine for various operating systems
SEO PowerSuite - Get all SEO tools in one pack - download free edition of SEO PowerSuite and get top 10 rankings for your site on Google and other search engines!
GImageReader - gImageReader is a simple Gtk/Qt front-end to the Tesseract OCR Engine.