Youdao Dict is a free Chrome extension developed by Justin Young. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory. The extension allows users to easily translate between Chinese and English.

The extension offers two main features. Firstly, it enables users to translate words or sentences by double-clicking on them while browsing a webpage. A pop-up field will appear with the translation and explanations. Secondly, users can also input words or sentences in the extension's popup window, which can be accessed by clicking on the extension icon on the toolbar.

Youdao Dict is particularly useful for Chinese users who frequently browse English webpages. It provides a convenient way to instantly translate unfamiliar English words without having to leave the current page. The recent updates have introduced additional customization options, such as setting custom hotkeys and enabling word lookup in the Youdao wordbook.