Manual install

Add to Opera

The Chrome Web Store listing is still pending, so install it yourself. Same checkers, same reports, right in the tab.

Download for Opera

How to use it

Select any text Right-click Clever Checker

The panel checking grammar: fourteen issues found, each correction listed beside the marked-up text.
Grammar, as you type
The panel scoring text for AI writing: 90% AI-generated, with every sentence marked as AI-like, mixed or human.
An AI score per sentence
The panel scoring readability: a post-graduate reading level and the six formula scores under it.
What makes it hard to read

Three steps

How to install it

  1. Download the extension. Unzip it to a new folder.
  2. In a new tab, go to Developer mode, top right.
  3. Click Load unpacked. Select the unzipped folder.

Pin the new toolbar icon, then click the icon to open the extension.

Where to use it

Everywhere you browse

Other browsers: Chrome, Firefox, Safari, Edge, Brave, Yandex, Vivaldi, or the full list.

Back to the extension