What are some alternatives?
When comparing OpenGraphTool.com and MetaTagTools.com, you can also consider the following products
OpenGraphTags - Open Graph Tag Simulator
MetaTagsTool.com - Meta Tag Analyzer, Simulator, & Generator
MetaTagTool.com - Meta Tag & Open Graph Tag Generator, Simulator, & Analyzer
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Google - Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web
SiteGuru - SiteGuru crawls and analyzes your website. We check your content, links and website structure and give actionable tips to improve your site.