Audio Tag Editor
Kid3 audio tag editor can edit the tags of MP3, Ogg, FLAC, MPC & WMA files in an efficient way, convert between ID3v1 and ID3v2, set the tags of multiple files, generate tags from file names or vice versa and import from freedb, MusicBrainz and Disco
This is the fast and Free (LGPL license) real time MPEG Audio Layer 1, 2 and 3 decoding library and console player. It uses floating point or integer math, along with several special optimizations (3DNow, SSE, ARM, ...) to make it most efficient.
Search, Download, Play, Share on Bittorrent, YouTube and the cloud
FrostWire http://www.frostwire.com/ is a media player and Peer to Peer (P2P) information sharing client for the BitTorrent network. This project is not affiliated with LimeWire LLC. FrostWires' source code is Licensed under the GNU GPL Open Source license
UMPlayer is a cross-platform multimedia player supporting many audio and video codecs and file formats as well as DVDs, VCDs, and various streaming protocols. It boasts many advanced features such as built-in subtitle search and YouTube player.
TiMidity++ is an open source MIDI to WAVE converter and player.
Cross-platform player and audio manager
aTunes is a powerful, full-featured, cross-platform player and manager, with support for online radios, podcasts and CD ripping.
Mikmod is a module player and library supporting many formats, including mod, s3m, it, and xm. Originally a player for MS-DOS, MikMod has been ported to other platforms, such as Unix, Macintosh, BeOS, and Java(!!)
Internet radio directory browser
Streamtuner2 is an internet radio station and video browser. It simply lists stations in categories from different directories. Launches your preferred media apps for playback. It's built in Python now, but retains UI similarity with the original StreamTuner 0.99
Web frontend for MPD and Mopidy
Rompr is a music player that lets you discover more about the music you love and discover new music you don't even know yet. It is a client for the mpd music server. It plays your local music, internet radio, podcasts and anything supported by Mopidy - eg Spotify, SoundCloud, Youtube... On top of all that, you can use Rompr in a browser on one computer to play music out of another. So if you have a media centre connected to your Hi-Fi, Rompr can control it. It supports most modern mobile devices too. Its looks are inspired by Amarok 2. Please use the Wiki link above to get installation instructions and a basic usage guide.
A multi-format module player and library
xmp is a module player for Unix-like systems that plays over 90 mainstream and obscure module formats from Amiga, Atari, Acorn, Apple IIgs and PC, including Protracker (MOD), Scream Tracker 3 (S3M), Fast Tracker II (XM) and Impulse Tracker (IT) files.
Qt-based Multimedia Player
This program is an audio-player, written with the help of the Qt library. The user interface is similar to winamp or xmms. Alternative user interfaces also are available.
The KDE FM and Internet Radio App
KRadio is an AM/FM/Internet radio application for KDE4. It has support for V4L and V4L2 radio devices, internet radio, RDS, lirc remote control, MP3 and Ogg/Vorbis recording, TimeShift playing, alarms and much more. Try out!
ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.
Freevo is an open source HTPC media centre integrating PVR / DVR funtionality along with music, video, gaming, home automation and more. It is written in python and uses existing popular software such as mplayer, xine and vlc.
AdPlug is a cross-platform OPL2 audio player library. AdPlug plays music, originally composed for the AdLib (OPL2) audio board, on top of an OPL2 emulator or by using the real hardware. There are multiple player software interfaces available.
This SourceForge project page is obsolete. Please visit http://www.musicpd.org/
Gnomad 2 is a GUI built on top of GTK/GNOME 2, libid3tag, libnjb and libmtp that makes it possible to transfer tracks and files from/to a Creative Nomad Jukebox (all brands) and MTP devices. It is designed much like an ordinary graphical FTP program.
QUIMUP is a client for the music player daemon (MPD) written in C++ and QT3. The focus is on mouse handling. Playlist management is done entirely by drag-&-drop. Playback functions are directly accessible from the system tray. Supports album art.
Nosefart plays NSF (NES sound format) files so you can listen to those old tunes without actually having to play the games. It runs in Linux, DOS/Windows, and as a plugin to various players, including Winamp and XMMS. It was mostly written by Matt Co
Plarpebu is a java karaoke player that runs on any architecture that can run java. It plays both midi (.mid and .kar) and mp3+cdg files. Check project web site at : http://miageprojet.unice.fr/twiki/bin/view/Fun/ScreenshotsPage for full info.
Jukebox for large collections of music files, written in perl, use gstreamer, mplayer or mpg321/ogg123/flac123 for playback
Mixxx has moved to http://www.mixxx.org. Please visit our official site for the latest updates, as our SourceForge page is completely out of date.
mp3 library, advanced ID3V1 and ID3V2 tagger, player. Organize a large mp3 library, over 40,000 songs. Speech synthesis and tag backup utilities. Scripts to maintain and organize song files.
Zinf is the continuation of FreeA*p and has all the same features as FreeA*mp: MP3, Vorbis, WAV and audio CD playback, streaming (SHOUTcast, Icecast, RTP) support, a powerful musicbrowser/playlist editor, a themed interface and a RMP download manager.
A free multiplatform audio player written in Lazarus/FreePascal