Speak Selection lets you hear any text you select with your mouse read aloud by your chosen voice. Enable it in System Settings → Accessibility → Spoken Content → Speak Selection.

macOS Spoken Content settings with Speak Selection enabled and keyboard shortcut shown

How to start speaking selected text

Once Speak Selection is enabled, select any text on screen with your mouse, then use one of these methods:

  1. Keyboard shortcut: Press Option + Esc together. This starts speaking the selected text. Press the same shortcut again to stop. You can customise this shortcut in the Spoken Content settings.
  2. Right-click menu: After selecting text, right-click (or Control-click) and choose Speech → Start Speaking from the context menu.
macOS right-click context menu showing the Speech submenu with Start Speaking option

Using the TTS controller

With the floating TTS controller enabled (see Speech TTS), you can select text and click the Play button on the controller to start speaking. The controller also lets you rewind, fast forward, and adjust speed on the fly.

macOS floating Text to Speech controller toolbar showing play, stop and speed controls

You can also click into a text document without selecting — just position your cursor — and press Play on the controller to start reading from that point.

macOS Text to Speech controller toolbar with labelled buttons for play, stop, rewind and speed

Word and sentence highlighting

Click the info symbol (ℹ) next to Speak Selection to access highlighting options. Set colours for the currently spoken word and sentence, and choose underline highlighting if preferred.

macOS Spoken Content settings panel showing the Show Controller option for the TTS toolbar macOS Spoken Content settings showing word and sentence highlight colour options

📖 Apple Help: Spoken Content Settings on your Mac ↗