From Bare Bones Software:
BBEdit is a high-performance HTML and text editor for the Macintosh. It is designed and crafted for the editing, searching, transformation, and manipulation of text. BBEdit provides an array of general-purpose features which are useful for a wide variety of tasks, and includes many features which have been specifically developed in response to the needs of Web authors and software developers.
What's new in this version:
BBEdit now supports the use of iCloud Drive for sharing application support and setup items. This works similarly to the existing Dropbox support: in your "iCloud Drive" folder, create a folder named "Application Support", and then within that create a folder named "BBEdit".