Anonymize HN is a Chrome extension developed by danthelion. It falls under the category of Browsers and specifically, Add-ons & Tools. The extension allows users to anonymize or pseudo-anonymize usernames on Hacker News.

With Anonymize HN, users have two options to choose from. The first option is "Full Anonymize," which changes every username to "anonymous." This ensures that the original usernames are completely hidden. The second option is "Hash names," which replaces usernames with a deterministic hash. This provides a level of pseudonymity while still maintaining consistency.

Additionally, Anonymize HN provides a "Reset" button that allows users to revert back to the original usernames if needed. This feature ensures flexibility and convenience for users.

Anonymize HN is a free extension, making it accessible to all users. It offers a simple and effective way to protect user privacy on Hacker News by anonymizing usernames or using deterministic hashes.