HackyBird is a free Chrome add-on developed by hackybird. It falls under the category of Browsers and specifically belongs to the Add-ons & Tools subcategory. This program allows users to filter their Twitter stream by keywords and sort it by popularity, including retweets, likes, and users.

With HackyBird, users can easily filter out tweets that are not relevant to their interests by specifying keywords. This helps to streamline their Twitter feed and focus on the content that matters most to them. Additionally, users can sort their stream based on popularity, allowing them to see the most popular tweets first.

Another useful feature of HackyBird is the ability to assign weights to users, which can rank them up or down in the stream. This allows users to prioritize tweets from certain users or minimize the visibility of others.

To keep track of read tweets, HackyBird offers a convenient feature to mark tweets as "read". This helps users to easily identify which tweets they have already seen and which ones are new.

HackyBird provides a fast one-click sorting option, enabling users to quickly rearrange their Twitter stream based on their preferences.

One of the great advantages of HackyBird is that it does not require any signup, making it easy for users to get started without any additional steps.