Napsack

Napsack offers a completely free, open source option for users seeking a specialized multi-threaded client for broadcasting Napster queries across multiple servers. The program offers a variety of features for streamlining the user experience, such as retrieving a list of target servers from www.napigator.com - this inventory is also fully user-filterable based on specific metrics such as the number of users, files, or gigs indexed.

Overall, Napsack's dedication to customization and user-friendliness in their software design makes it a valuable tool for those seeking effective multi-server napster queries without the hassle.