Trackerless Magnet URI is a free Chrome extension developed by Aleksandersen. This extension rewrites all Magnet URI links to force BitTorrent clients to use trackerless peer-discovery instead of server-assisted peer-discovery.

The main purpose of this extension is to reduce the BitTorrent network's reliance on centralized trackers and web seeds. By eliminating these centralized components, it helps to enhance user privacy and security. Centralized trackers and web seeds can potentially enable centralized monitoring of BitTorrent users and act as a single point of failure.

One thing to note is that downloads may initially be slower with this extension, as peer-discovery can take longer if the client hasn't been running for a while. However, this slight delay is a small trade-off for the increased privacy and decentralization offered by Trackerless Magnet URI.

This extension is also available in the Firefox Add-on Gallery, providing users with the flexibility to use it across multiple browsers.