Analytics
Plausible is a lightweight and open source Google Analytics alternative Your website data is 100 yours and the privacy of your visitors is respected

Miscellaneous
Positioning tooltips and popovers is difficult Popper is here to help Popper is the de facto standard to position tooltips and popovers in modern web applications

JavaScript libraries
Touch enabled jQuery plugin that lets you create beautiful responsive carousel slider

Issue trackers
Self hosted and cloud based application performance monitoring error tracking that helps software teams see clearer solve quicker learn continuously

JavaScript frameworks
React is the library for web and native user interfaces Build user interfaces out of individual pieces called components written in JavaScript React is designed to let you seamlessly combine components written by independent people teams and organizations

Ecommerce
The World Wide Web Consortium W3C develops standards and guidelines to help everyone build a web based on the principles of accessibility internationalization privacy and security