The main "Voice Over" keyboard commands
General commands
- Turn VoiceOver on or off: command-F5
- Lock and unlock the VO (Control and Option) keys: VO-;
- Repeat last spoken phrase: VO-Z
- Open rotor: VO-U
Navigation commands
- Go to next/previous focusable item (link, button, input, etc.): VO-Tab
- Move up, down, previous, next: VO-Up Arrow, -Down Arrow, -Left Arrow, -Right Arrow
- Next link: VO-Command-L
- Next visited link: VO-Command-V
- Next heading: VO-Command-H
- Next paragraph: VO-Command-P
- Next form element: VO-Command-J
- Next table: VO-Command-T
- Next list: VO-Command-X
- Next graphic: VO-Command-G
- Activate a link or form control: VO-Space Bar
- Go to previous (heading, table, etc.) item: Add Shift to the above commands
- Interact with (go into/out of) objects (like iframes, menus, application regions, etc.): VO + Shift + Down Arrow / Up Arrow
Tables
- Read the column header in a table: VO-C
- Read a row in a table: VO-R
- Read a column in a table: VO-C-C
- Read row and column numbers in a table: VO-Shift-T
- Move across Table: Arrow Keys
The rotor
The VoiceOver Rotor (VO-U) feature helps users perform some common navigation actions quickly and easily. You can select which item types to display in the Rotor by opening the VoiceOver utility with VO-F8, and then going to Web > Web Rotor.
Open the rotor by pressing VO-U, and then use the Left Arrow and Right Arrow keys to choose between the item types, such as links, headings, tables, frames, images, form controls, landmarks, visited links and non-visited links. Once a page element type is selected, use the Up- and Down-Arrow to select a specific element and Enter to activate it. Use Escape to exit the rotor.
Within the rotor, you can start typing to filter the available elements. Example: With the Header rotor open, press "2" to filter for second level headings.
You find the complete list of commands here: https://www.apple.com/voiceover/info/guide/_1131.html