Free
| Software | Description | OS | License | File Date | Comments | Power |
|---|---|---|---|---|---|---|
| [MMI] MondOSC v1.6.3 | 4 Osc monster bass synth VSTi | Windows | Freeware | 2003-09-01 | 4 | 55db |
| ZynAddSubFX v2.4.3 | Realtime, multi-timbral software synthesizer. | Linux | Free | 2012-06-02 | 0 | 55db |
| Zweeger v2.0 Beta 2 | Modular extended MIDI filter and generator. [VST/AU/Standalone] | Mac | Freeware | 2009-07-10 | 0 | 55db |
| Zweeger v2.0 Beta 2 | Modular extended MIDI filter and generator. [VST/Standalone] | Windows | Freeware | 2009-07-10 | 0 | 45db |
| Zweeger v2.0 Beta 2 | Modular extended MIDI filter and generator. [VST/LADSPA/Standalone] | Linux | Freeware | 2009-07-10 | 0 | 40db |
| zv | A textmode mp2 - mp3 audio player for OS/2 v3.0+ | OS/2 | Freeware | 1998-06-03 | 0 | 50db |
| ztracker 0.981 | Win32 midi tracker/sequencer. | Windows | Free | 2002-06-17 | 9 | 50db |
| ZS4 Video Editor v0.958 | Advanced video editing and compositing software. | Windows | Freeware | 2007-04-16 | 15 | 50db |
| ZS4 Video Editor v0.958 | Advanced video editing and compositing software. | Linux | Freeware | 2007-04-16 | 0 | 40db |
| ZS4 Video Editor v0.956 | Advanced video editing and compositing software. | Mac | Freeware | 2007-04-16 | 0 | 60db |
| Zourna v1.0 | Produces the sound of the Zourna. [VST] | Windows | Freeware | 2008-05-12 | 0 | 50db |
| Zlurp! v1.9.4 | An all-in-one CD audio tool for making compressed audio files | Windows | Freeware | 2005-05-22 | 0 | 50db |
| Zip Contents Renamer | Renames the CDG and MP3 file inside a ZIP | Windows | Freeware | 2004-09-23 | 0 | 50db |
| ZeroBeat | Guitar tuner | Windows | Freeware | 2003-05-09 | 0 | 50db |
| ZeroBeat | Guitar tuner | Mac | Freeware | 2003-05-09 | 0 | 55db |
| ZeroBeat | Guitar tuner | Mac | Freeware | 2003-05-09 | 0 | 35db |
| Zerius Vocoder X 1.1.2 | Vocoder effect. | Mac | Freeware | 2005-02-01 | 1 | 70db |
| Zerius Vocoder PPC BeOS binary (v1.1b1) | Apply Vocoder effects to WAV files | BeOS | Freeware | 1999-01-05 | 6 | 50db |
| Zerious Vocoder Mac OS binary (v1.0.1) | Apply Vocoder effects to WAV files. | Mac | Freeware | 1 | 65db | |
| Zen 1.7.2b | Free universal VSTi instruments presets manager [VSTi] | Windows | Freeware | 2013-06-17 | 0 | 60db |
| Zen 1.7.2b | Zen is a universal presets manager [VSTi] | Mac | Freeware | 2013-06-17 | 0 | 65db |
| Zampler v1.1 | Zampler is a free full featured audio sampler workstation. [VST] | Windows | Freeware | 2012-08-09 | 0 | 75db |
| Zampler 1.1 | Zampler is a free audio sampler processing application. [AU/VST] | Mac | Freeware | 2012-08-09 | 0 | 70db |
| Zamp v1.3 | Simple sample player. [VST] | Windows | Freeware | 2006-07-31 | 3 | 45db |
| Zaery synth keyboard beta 5.0 | Continuum keyboard synthesizer | Android | Freeware | 2010-09-26 | 0 | 50db |
| Z-Drums v1.4.7 | The Z-Drums is a free iPhone app that allows users to play a virtual drum kit, record the beats and share it with friends via Facebook. | iPhone | Free | 2013-04-03 | 1 | 65db |
| You Control: Tunes v1.5.1 | Gives you complete control over iTunes from the Mac OS X menu bar. | Mac | Freeware | 2007-04-10 | 0 | 45db |
| Yoshimi 1.1.0 | Yoshimi is a software synthesizer for Linux based on the 2.4.0 release of ZynAddSubFX. | Linux | Freeware | 2013-05-13 | 0 | 55db |
| Yoink v1.2 | Live performace effect. [VST] | Windows | Freeware | 2006-10-24 | 0 | 60db |
| Yo!MPEG Player v1.0.2.79 | Free mpeg player | Windows | Freeware | 1999-05-07 | 509 | 65db |
