Cyd is a desktop application for macOS, Windows, and Linux designed to help users download and delete their data from X (formerly Twitter). The app functions by simulating human interaction with the X website, scrolling through pages and clicking buttons on the user's behalf. This method allows Cyd to bypass X's API, ensuring continued access to user data even if API access is restricted.

Here are some of Cyd's key features:

• Data Backup: Before deleting any data, Cyd can create a local, searchable backup of a user's X data, including HTML snapshots of their tweets.

• Tweet Deletion: Cyd offers flexible options for tweet deletion. Users can choose to delete all tweets or set parameters, such as deleting tweets older than a certain timeframe or those with less than a specified number of likes or retweets.

• Account Management: Cyd can help users who want to leave X while retaining their username. The app can delete all tweets and unfollow all accounts, leaving the account active but empty. This prevents others from taking over the username and allows users to leave a message directing followers to their new online presence.

• Likes and DM Deletion: Recognizing the potential privacy risks, Cyd can also delete a user's likes and direct messages.

Cyd prioritizes user privacy and security. The application runs directly on the user's computer, meaning neither Cyd's developers nor any third parties have access to the user's X account or data.