There are many online code editors such as CodePen and JSFiddle which are great for playing with front-end code and for sharing code and web demos with co-workers and clients. Recently I came across an open source CodePen alternative which works offline as a Chrome plugin and offers many features similar to the CodePen editor.
This Chrome plugin is called Web Maker and once installed, it can open a code editor inside a new tab in browser. Since Web Maker doesn’t require internet connection, it is quite fast and loads instantly. The editor interface is similar to the one provided by CodePen.
Read more about Web Maker in this blog post.