Meld is packaged for most Linux/Unix distributions, including Fedora, Ubuntu, and Suse. Unless you want the absolutely latest version, you should install Meld through your package manager.

Windows users should download the MSI, or for older releases, check out the Meld installer project.

On OS X, Meld is not yet officially supported. For pre-built binaries, these OS X builds are the best option. You can also get Meld from MacPorts, Fink or Brew; none of these methods are supported.