Web interface for searching and downloading books and audiobooks
Persepolis Download Manager is a GUI for aria2
Speed up downloads by combining multiple network connections
Captures and accelerates browser downloads locally.
A cross-platform download manager built on Avalonia 12
Free and powerful BitTorret client
Download accelerator for HTTP and HTTPS
A portable modern multi-threading download manager for all platforms
A free java based downloader API which have resume and multithreading