sharer.js
Create your own social share buttons. No jquery. Just vanilla JS
Sharer.js is a lightweight vanilla JavaScript library for creating custom social sharing controls on website elements. It works without jQuery, frameworks, or external runtime dependencies. Developers configure each control through HTML data attributes that define the service, URL, title, popup size, and other platform-specific values. The library supports more than 20 social networks, messaging services, blogging platforms, and bookmarking tools.