Top Shareaza Alternatives for Secure and Feature-Rich File Sharing
Shareaza has long been a favorite for its luxurious and sophisticated approach to file sharing, seamlessly harnessing the power of up to four separate peer-to-peer networks like EDonkey2000, Gnutella, BitTorrent, and its native Gnutella2. Its completely free, ad-free, and spyware-free model has set a high bar. However, if you're looking for a new file-sharing solution or just exploring your options, there are several excellent Shareaza alternative choices that offer similar capabilities, and sometimes even more.
Best Shareaza Alternatives
Whether you prioritize multi-network support, a clean interface, advanced features, or simply a reliable peer-to-peer client, this list provides a comprehensive overview of top contenders that can fill the void left by Shareaza, offering robust and secure file-sharing experiences.

qBittorrent
qBittorrent is an excellent open-source and free Shareaza alternative, particularly if your focus is on BitTorrent. It aims to provide a Free Software alternative to µTorrent, offering a lightweight, ad-free experience with integrated search, support for MAGNET links, and a built-in RSS reader. It's available across multiple platforms including Mac, Windows, Linux, BSD, and PortableApps.com.

Transmission
Transmission stands out as a lightweight, free, and open-source BitTorrent client that serves as a solid Shareaza alternative for those who appreciate simplicity and efficiency. It includes essential features like encryption, a web-based interface, and UPnP/NAT-PMP port forwarding. Transmission is available on Mac, Windows, Linux, BSD, and PortableApps.com, making it highly versatile.

µTorrent
µTorrent is a widely recognized BitTorrent client that, while ad-supported and proprietary, offers a lightweight and popular Shareaza alternative for file sharing. It supports peer-to-peer file sharing and is available on Mac, Windows, Linux (via Wine), Android, and PortableApps.com, providing broad platform compatibility.

Deluge
Deluge is a full-featured, free, and open-source BitTorrent client that makes for an excellent Shareaza alternative, especially for users who value customizability through plugins. It's written in Python and uses libtorrent (rasterbar), offering features like an IP Address Blacklist and an ad-free experience. Deluge is available for Mac, Linux, BSD, and Windows.

Free Download Manager
Free Download Manager (FDM) is a versatile, free download accelerator that also includes built-in BitTorrent support, making it a compelling Shareaza alternative. It speeds up downloads by splitting files and offers features like browser integration, resume interrupted downloads, and even torrent search. FDM is available on Mac, Windows, Linux, Android, and PortableApps.com.

Tixati
Tixati is a free peer-to-peer file sharing program utilizing the BitTorrent protocol, serving as a strong Shareaza alternative with its focus on efficiency and advanced features. It's ad-free, highly customizable, and includes unique features like group chat, media streaming, and robust remote management. Tixati is available for Windows and Linux.

RetroShare
RetroShare offers a different kind of Shareaza alternative, focusing on secure, private, and decentralized communication and file sharing. As an open-source, cross-platform solution, it provides anonymous and encrypted file sharing along with secure chat and video/voice calls. It's available on Mac, Windows, Linux, and BSD, perfect for privacy-conscious users.

Soulseek
Soulseek is a unique, ad-free, and spyware-free file sharing application that stands out as a community-driven Shareaza alternative, particularly popular for music sharing. It focuses on a strong community aspect and peer-to-peer sharing. Soulseek is available on Mac, Windows, and Linux.

BitTorrent
The original BitTorrent client, developed by Bram Cohen and BitTorrent, Inc., remains a solid Shareaza alternative for uploading and downloading files via the BitTorrent protocol. It offers peer-to-peer file sharing and is available on Mac, Windows, Android, and Android Tablet, with some versions including built-in antivirus and media conversion features.

BiglyBT
BiglyBT is a feature-filled, open-source BitTorrent client based on the Azureus open-source project (now Vuze), making it a powerful Shareaza alternative. It boasts extensive features including i2P integration, swarm merging, built-in media player and converter, and support for DLNA, TOR, and WebTorrent. BiglyBT is available on Mac, Windows, Linux, Android, and BSD.
With a diverse range of options available, from dedicated BitTorrent clients to broader file-sharing platforms and privacy-focused solutions, you're sure to find a Shareaza alternative that perfectly matches your needs. Explore these options and discover the best fit for your secure and efficient file-sharing endeavors.