Deku - Functional view library for building UI components as an alternative to React
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Preact.js - Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Glimmer - Fast and light-weight UI components for the web
LightShot - The fastest way to take a customizable screenshot.