The WaniKani reading ability checker is a Chrome extension that provides users with the information they need to determine what level they need to be on in order to read the Japanese characters (kanji) on a webpage. This handy tool allows users to quickly assess their reading ability and navigate through Japanese content more effectively.

Using the extension is simple and straightforward. Users just need to follow these steps:

1) Visit a webpage that contains Japanese characters.

2) Optionally, select one or more kanji on the page.

3) Click on the extension icon.

4) A pop-up will appear, displaying a list of characters organized by WaniKani level.

With the WaniKani reading ability checker, users can easily identify the level of difficulty of Japanese content and determine if they have the necessary knowledge to read it. This extension is a valuable tool for Japanese language learners and enthusiasts alike.