GoTorrent

A desktop torrent client with a native GUI for macOS, Windows and Linux, on a BitTorrent engine written from scratch in pure Go.

How it’s built

parser/: Bencode parser and encoder.
torrent/: Parses .torrent files, single and multi-file.
tracker/ and peers/: HTTP tracker client and the compact peer-list decoder.
handshake/, messages/, bitfield/: The BitTorrent handshake, wire-protocol messages and piece availability.
client/ and p2p/: A TCP client per peer and a download coordinator: one goroutine per peer pulling from a piece work queue, 16 KB blocks, 16 requests pipelined per peer.
internal/: Torrent manager and download pipeline, the Fyne UI (windows, screens, widgets, tray), settings persistence, and single-instance IPC over a TCP socket.

Drag a .torrent file anywhere on the window.
Preview files, size, tracker and infohash before downloading; pick files in multi-file torrents.
Live speed, peer count and ETA per torrent; pause, resume and remove.
Single instance: later launches hand their .torrent files to the running app.
The torrent list survives restarts; OS notifications on completion or error; .torrent file association.
Dark, light and system themes, a system tray, and keyboard shortcuts.

Go · Fyne v2 · net/http · systray