What the Lang is a free Chrome extension developed by Webcraft. It falls under the category of Browsers, specifically Add-ons & Tools. This simple extension aims to help users check their language input while typing on any webpage.

The main feature of What the Lang is its ability to inform users if they are typing in a language other than English. It achieves this by playing a sound sample whenever it detects non-English characters in any input field on a webpage. This can be particularly useful for users who frequently switch between languages or are unsure if they are typing in the correct language.

With its straightforward functionality, What the Lang provides a convenient way to ensure that your language input is accurate and in line with your intended language. Whether you're writing an email, filling out a form, or composing a document, this extension can help you catch any language mistakes in real-time.

Overall, What the Lang is a useful tool for Chrome users who want to double-check their language input and avoid unintentional errors caused by typing in the wrong language.