Custom Social Share Buttons with JavaScript and HTML5 – sharer.js
sharer.js is a JavaScript library which add the social sharing capability to any DOM elements (buttons, links, etc).
Recommended
Convenient Emoji Picker In Vanilla JavaScript – Emoji Button
Emoji Button is a pure JS emoji picker where the users can quickly search and select emoji from a categorized emoji picker popup.
Cartoon XKCD Styled Chart Library – roughViz.js
roughViz.js is a fancy & sweet JavaScript charting library that plots your data sets in hand-drawn SVG charts just like XKCD style plots.
Minimal WYSIWYG Editor In Pure JavaScript – Suneditor
Suneditor is a lightweight, flexible, customizable, pure JavaScript WYSIWYG text editor for your web applications.
Create Draggable/Resizable/Scalable/Rotatable/Warpable Element – moveable
moveable is a JavaScript library that makes an element draggable, resizable, scalable, rotatable and wrapable.
Feature-rich Data Grid Library – FathGrid
FathGrid is a lightweight yet full-featured data grid/table library with support for sorting, filtering, pagination, editing, and much more.
Elegant Image Uploader With Resize/Crop Support – uppload.js
uppload.js is a modern JavaScript library created to improve the image upload experience.
Draggable & Touch-friendly Carousel In Vanilla JavaScript – embla-carousel
The embla-carousel JavaScript library which helps developers to create a responsive, customizable, mobile-friendly carousel component on the web app.
Flat Style JavaScript Date Picker – flatpickr
flatpickr is a powerful and customizable JavaScript library which enables the visitor to pick a date/time/date range from a calendar.
Save Form Changes In Local Storage – form-storage
form-storage is a small JavaScript library to store the current values of your form fields in the local storage to prevent data loss.