Webmaster tools is a free service by Google from where we can get free Indexing data, backlinks information, crawl errors, search queries, CTR, website malware errors and submit the XML sitemap.
Google Webmaster tool is a free tool provided by Google which is used to index websites and optimizes the visibility of website on search engines. It is a part of SEO.
Webmaster tool is a mechanism to communicate with webmaster. Google Webmaster Tools helps you to identify issues with your site and can even let you know if it has been infected with malware.
Webmaster is a google tool which is used to give you technical assistance and guidance about your website. It gives you the complete information about the webpage and it also tell you about the corrections and improvements you can do to your webpage.