Programming language: C++
License: GNU General Public License v3.0 or later
Tags: File Sharing and Synchronization     Distributed filesystems     Peer-to-peer filesharing    
Latest version: v3.00

Transmission alternatives and similar software solutions

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Transmission is a fast, easy, and free BitTorrent client. It comes in several flavors:

  • A native macOS GUI application
  • GTK+ and Qt GUI applications for Linux, BSD, etc.
  • A Qt-based Windows-compatible GUI application
  • A headless daemon for servers and routers
  • A web UI for remote controlling any of the above

Visit https://transmissionbt.com/ for more information.


[Transmission's documentation](docs/README.md) is currently out-of-date, but the team has recently begun a new project to update it and is looking for volunteers. If you're interested, please feel free to submit pull requests!

Command line interface notes

Transmission is fully supported in transmission-remote, the preferred cli client.

Three standalone tools to examine, create, and edit .torrent files exist: transmission-show, transmission-create, and transmission-edit, respectively.

Prior to development of transmission-remote, the standalone client transmission-cli was created. Limited to a single torrent at a time, transmission-cli is deprecated and exists primarily to support older hardware dependent upon it. In almost all instances, transmission-remote should be used instead.

Different distributions may choose to package any or all of these tools in one or more separate packages.


Transmission has an Xcode project file (Transmission.xcodeproj) for building in Xcode.

For a more detailed description, and dependencies, visit [How to Build Transmission](docs/Building-Transmission.md) in docs

Building a Transmission release from the command line

$ tar xf transmission-3.00.tar.xz
$ cd transmission-3.00
$ mkdir build
$ cd build
$ # Use -DCMAKE_BUILD_TYPE=RelWithDebInfo to build optimized binary.
$ cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
$ make
$ sudo make install

Building Transmission from the nightly builds

Download a tarball from https://build.transmissionbt.com/job/trunk-linux/ and follow the steps from the previous section.

If you're new to building programs from source code, this is typically easier than building from Git.

Building Transmission from Git (first time)

$ git clone https://github.com/transmission/transmission Transmission
$ cd Transmission
$ git submodule update --init --recursive
$ mkdir build
$ cd build
$ # Use -DCMAKE_BUILD_TYPE=RelWithDebInfo to build optimized binary.
$ cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
$ make
$ sudo make install

Building Transmission from Git (updating)

$ cd Transmission/build
$ make clean
$ git submodule foreach --recursive git clean -xfd
$ git pull --rebase --prune
$ git submodule update --recursive
$ # Use -DCMAKE_BUILD_TYPE=RelWithDebInfo to build optimized binary.
$ cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
$ make
$ sudo make install


Code Style

You would want to setup your editor to make use of the .clang-format file located in the root of this repository and the eslint/prettier rules in web/package.json.

If for some reason you are unwilling or unable to do so, there is a shell script which you can use: ./code_style.sh


See [language translations](docs/Translating.md).


macOS CI builds are running on a M1 Mac Mini provided by MacStadium Free code signing on Windows provided by SignPath.io, certificate by SignPath Foundation