Workspace

Shortcuts

Ctrl++ Increase Font Size
Ctrl+- Decrease Font Size
Ctrl+0 Return to Default
Ctrl+Shift+H Hide/Show the Sidebar
Ctrl+Alt+P Live Preview
Ctrl+Shift+C Live Preview Highlight
From menu Turn Line Numbers on/off
From menu Turn Word Wrap on/off

Notes

Working Files can be sorted by name, type or order added by clicking on the Gear icon
Or you can drag them into your own desired order.
Change Projects by clicking on the project name and choosing a different project
Set your tab/spacing preferences at the bottom right corner by clicking on Tab/Spaces and the number
Look at the bottom status bar for information on Linting Errors, current line/column and more

Opening Closing/Files

Keyboard Shortcuts

Ctrl+Shift+O Quick Open
Ctrl+W Close Current File
Ctrl+Shift+W Close All Files
Ctrl+O Open a File
Ctrl+N New File
Ctrl+Alt+R Switch Project
F2Rename current file

Notes

You can drag a file from Explorer/Finder into Brackets to open it
You can open files by right-clicking on them and opening in Brackets
Setting the default open to Brackets will depend on your operating system
Right-click on files/folders in sidebar to rename, delete or reveal in Explorer/Finder