Wowza Media Server, OpenVCX, Adobe Media Server, Flumotion, Nimble Streamer, YouPHPTube, Livebox, Ant Media Server, MistServer, GMediaServer, SRS, Kurento, CumulusClips, Unreal Media Server, MediaGoblin, LIVE555 Media Server, Crtmpserver, Mammoth Server are some alternatives to Red5.