What is qBittorrent?
qBittorrent is a BitTorrent client written in C++ with Qt and built on libtorrent. The project aims to provide an open-source alternative to µTorrent, and its site lists a µTorrent-like interface with no ads. It is developed by volunteers in their spare time. It handles torrent files and magnet links, with controls for selecting content, assigning priorities, managing download locations and limiting seeding ratios. Connection settings include peer limits, proxy configuration, IP filtering and network interface binding.
The application runs on Windows, macOS and Linux, and the site also lists FreeBSD and OS/2. The project says the macOS version is barely supported because it lacks active macOS developers. It can be compiled without its graphical interface for operation through the Web UI, which is written with AJAX and is nearly identical to the regular GUI. A Web API supports programmatic access, while watched folders, RSS download rules with regex filters, completion notifications and external program execution provide options for automating transfers.
Protocol support covers magnet links, DHT, peer exchange and local peer discovery, as well as private torrents and encrypted connections. The client also provides torrent queueing, a bandwidth scheduler, a torrent creation tool and an integrated search engine, and it is available in about 70 languages.
Key capabilities
- Transfer management Select torrent content, assign priorities, configure save locations and manage download queues.
- Bandwidth controls Set upload and download rate limits and schedule alternative limits.
- Peer connectivity Configure connection limits, proxies, IP filtering, DHT, peer exchange and network interface binding.
- Remote operation Manage transfers through the Web UI or use the Web API for programmatic access.
- Download automation Load torrents from watched folders, apply RSS download rules and run external programs when transfers finish.
- Headless deployment Build and run the client without the Qt graphical interface.
Where qBittorrent fits
qBittorrent fits desktop torrent workflows and self-hosted download services managed remotely. Watched folders and RSS rules can handle recurring downloads, while completion hooks can pass finished files to an external program.
Before deployment, administrators should review storage paths, disk capacity, bandwidth limits, listening ports and network interface selection. Remote deployments also require attention to Web UI authentication, HTTPS and reverse proxy configuration. Source builds should use the supported dependency configuration; the bundled search engine requires an optional Python dependency.
Install
cmake --install buildReviews of qBittorrent
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