With the release of Chrome 37, CSS Shapes are enabled by default for everyone to use.
To make it easier for you to work with the new feature, there is now a CSS Shapes Editor for Chrome. This Developer Tools extension adds an interactive editor for shapes right in the browser. Learn more about it and watch a quick video demo of the editor in action on my blog post.
Standalone CSS Shapes Editor
The Chrome extension uses the same editing surface as the CSS Shapes Editor extension for Brackets. We think that’s practical and useful, so yesterday we also released the editing surface as a standalone CSS Shapes Editor on GitHub. As a developer, you can now integrate the shapes editor into your own tools, demos and interactive presentations.