Manual install

Add to Safari Beta

There is no Mac App Store listing, so install it yourself. Same checkers, same reports, right in the tab.

Download for SafariBeta

How to use it

Select some text Open 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

Four steps

How to install it

  1. Download the extension. Unzip it to a new folder.
  2. In Terminal, paste this: Drag the unzipped folder in. Hit Enter.
  3. Xcode opens the project. Press ▶︎ Build.
  4. In Safari Settings, tick: Advanced: web dev features. Developer: allow unsigned. Extensions: Clever Checker.

Step 2 needs Xcode, free on the Mac App Store.--macos-only is what keeps Xcode from downloading the iOS SDK before it will build.Step 4's first tick is Show features for web developers, which is what adds the Developer tab the second one lives in.Safari drops an unsigned extension every time it quits, so most people should wait for the App Store listing.

Where to use it

Everywhere you browse

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

Back to the extension