UseJSON is a free to use tool which helps to format, validate, compare your JSON,HTML,Javascript and XML.
Not Applicable 
$ 8.95
Json Xml Beautifier help to beautify and convert your JSON/XML data with client side operations.
Not Applicable $ 8.95
ForaStat is a free tool which helps analyse websites and estimate valuation including such as Search Engine Reports, Traffic Reports, Social Engagement, Safety, Host Information, Domain WHOIS, Page Speed and much more.