Here is a simple cheat sheet for Sublime Text 4. If you're looking for the official documentation:

• Official Documentation
• Community Documentation

Basic Navigation

• Ctrl+P Open file by name
• Ctrl+G Go to line number
• Ctrl+R Go to symbol
• Ctrl+Shift+P Command palette
• Ctrl+Shift+N New window
• Ctrl+Tab Switch between tabs
• Ctrl+Shift+Tab Cycle through tabs in reverse order
• Ctrl+T Go to file in project
• Ctrl+Shift+T Reopen recently closed tab
• Alt+. Close tag

Editing

• Ctrl+X Cut line
• Ctrl+C Copy line
• Ctrl+V Paste line
• Ctrl+Shift+D Duplicate line
• Ctrl+/ Comment/uncomment line
• Ctrl+Shift+/ Comment block
• Ctrl+Z Undo
• Ctrl+Shift+Z Redo
• Ctrl+J Join lines
• Ctrl+Shift+U Transform to Uppercase
• Ctrl+U Transform to Lowercase

Selection

• Ctrl+D Select word
• Ctrl+L Select line
• Ctrl+A Select all
• Ctrl+Shift+Space Select content within brackets or quotes
• Ctrl+Shift+A Select content within tags
• Ctrl+Shift+L Split selection into lines
• Alt+F3 Select all instances of the current selection

Search and Replace

• Ctrl+F Find
• Ctrl+H Replace
• Ctrl+Shift+F Find in files
• F3 Find next
• Shift+F3 Find previous
• Ctrl+Enter Insert line below
• Ctrl+Shift+Enter Insert line above

Split View

• Alt+Shift+2 Split view into two columns
• Alt+Shift+1 Revert back to a single column
• Alt+1, Alt+2 Switch between columns
• Ctrl+K, Ctrl+Arrow Move file to a group

Miscellaneous

• Ctrl+K, Ctrl+B Show/hide sidebar
• Ctrl+K, Ctrl+T Show/hide file tabs
• Ctrl+K, Ctrl+U Convert file to UTF-8
• Ctrl+K, Ctrl+W Wrap selection with tag
• Ctrl+K, Ctrl+X Trim trailing white space
• Ctrl+K, Ctrl+C Copy path of the current file
• Ctrl+K, Ctrl+D Insert date and time
• Ctrl+Shift+P, Package Control Install Package: Install a new package
• Ctrl+` Open Console