GrapesJS

GrapesJS is an open-source, multi-purpose, Web Builder Framework that combines different tools and features with the goal to help you (or users of your application) to build HTML templates without any knowledge of coding. It's a perfect solution to replace the common WYSIWYG editors, which are good for content editing but inappropriate for creating HTML structures. You can see it in action with the official demos, but using its API you're able to build your own editors. If you're here just to build stuff faster, open and bookmark the official demos and use them when you need it. GrapesJS comes with a set of built-in blocks, in this way you're able to build your templates faster. If the default set is not enough you can always add your own custom blocks. GrapesJS implements simple and powerful Style Manager module which enables independent styling of any component inside the canvas. It's also possible to configure it to use any of the CSS properties.