Nao filter is a free Chrome add-on developed by Yeq6N. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. With Nao filter, users can replace all instances of the word "なお" on a webpage with the phrase "Nao". This add-on is designed to provide a fun and personalized browsing experience for those who wish to see their desired phrase in place of "なお".

Nao filter is easy to use and seamlessly integrates into the Chrome browser. Once installed, users can simply navigate to a webpage containing the word "なお" and the add-on will automatically replace it with "Nao". This add-on is a great way to add a touch of personalization to your browsing experience.