SynthFont is a tool for playing/rendering MIDI files using SoundFonts and other similar sound sources. The result can be played back through a sound card or written to wave files. With SynthFont you can also create audio files (WAV, MP3, OGG, APE, FLAC) from your MIDI files. SynthFonts main sound sources are SoundFonts, but also wave files, DLS and GIGA files - and now also VST Instruments - can be used.
SynthFont supports the use of both VST effects and instruments. SynthFont has some basic SoundFont editing capabilities and also shows the MIDI data in a Piano Roll and an Event list. A stand-alone VST instrument version of SynthFont is also available.