Description: BuiltWith is a software that analyzes the technologies used on websites. It scans millions of websites to detect what frameworks, content management systems, JavaScript libraries, web servers, and other technologies are implemented on each site.
Type: software
Pricing: Open Source
Description: Responsinator is a free online tool that helps designers and developers test the responsiveness of their websites. It allows you to preview a site across various screen sizes like desktops, tablets, and phones to see how the design adapts on different devices.
Type: software