mult.dev - Create engaging travel visualisation videos
MetaSurvey - MetaSurvey provides light and high engagement surveys for e-commerce.
City Roads - This website allows you to select a city and then draws every single road on a screen.
BuiltWith Toolbar - Reveals the tech underneath a website. Browser extension.
Similar Tech - SimilarTech offers a Sales Insights platform which helps companies uncover their ideal market by crawling the sourcecode of over 300M sites.
Matlock Extension - Detect the Open Source libraries running on websites