Popular Extensions
Git
Git integration for Brackets.
Emmet
High-speed HTML and CSS workflow.
Beautify
Format JavaScript, HTML, and CSS files.
Markdown Preview
Live preview of markdown documents.
File Icons
File icons in Brackets’ file tree.
Indent Guides
Show indent guides in the code editor.
Autoprefixer
Parse CSS and add vendor prefixes automatically.
W3C Validation
Simple W3C Validator.