A visual way to see what is (re)rendering and why.

• Shows when component is being mounted or updated by highlighting (red for mount, yellow for update)
• Shows render count for each component instance
• Shows individual render log for each component instance

npm install react-render-visualizer

This is a mixin so once you've included the source code, simply mix it in to any react component you want to start monitoring.

E.g.

var ReactRenderVisualizer = require("react-render-visualizer");

app.TodoItem = React.createClass({
    mixins: [ReactRenderVisualizer],

Component will show up with a blue border box when being monitored