Kokoro Speak

Read the web aloud,
sentence by sentence.

Kokoro Speak reads web pages and selected text in a natural, human-sounding voice, and highlights each sentence as it's spoken so you can follow along. It runs on your own computer: private, no account, and it works offline.

Coming soon to the Chrome Web Store Also for VS Code
An article in Chrome with the sentence being read aloud highlighted in yellow.

What it does

Select some text and press Alt+Shift+S, or read a whole article with Alt+Shift+R.

Selections or whole articles

Speak what you've selected, or read a page's main article and skip the menus, sidebars and footers.

Follow along

The sentence being spoken is highlighted on the page and kept in view.

28 voices

American and British English, at any speed from 0.5× to 2×.

Private and offline

The Kokoro-82M speech model is included and runs on your graphics card, or on the processor when there isn't one. Nothing is sent to a server.

Numbers read naturally

"$10B" is read as "10 billion dollars" and "Q4 2025" as "fourth quarter 2025". Add your own pronunciations, and acronyms to spell out.

Optional AI rewriting

For text the built-in rules don't cover, with your own Anthropic API key. It's off by default, and it's the only feature that sends text off your device.

Controls where you need them

Use the toolbar button, the right-click menu or the keyboard. Change the shortcuts at chrome://extensions/shortcuts.

Alt+Shift+SSpeak the selection
Alt+Shift+RRead the page
Alt+Shift+PPause or resume
Alt+Shift+XStop

On a Mac, Alt is the Option key (⌥).

The Kokoro Speak popup with speak, read, pause and stop buttons, a voice menu and a speed slider.