slate-wrapped-block-plugin - A Slate plugin to wrap a custom block component around the selected block by condition.
draft-wysiwyg - Draft-JS experiments with drag&drop, resizing, tooltips, WIP
makona-editor - Makona (Hawaiian for Mason) is a spike for a block-style editor written in ReactJS.
react-if - Render React components conditionally
evil-blocks - Tiny framework for web pages to split your app to separated blocks