Linux

LibreArp is a free MIDI effect VST plugin that takes chords in the form of MIDI input and outputs so-called arpeggios based on the input chords.
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Stretch, shift, smear and skew harmonics up, down and around the spectrum to explore new timbres and create sounds you didn't think possible with wavetables.
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OS-251 is a pure digital lo-fi synthesizer plugin for Mac, Windows and Linux. Available in VST3 and AU plugin formats for free.
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Set out in a hardware compressor visual style, it won't take you long to get your sounds thumping with this. Featuring Ratio/Attack and Release/Sensitivity and Makeup controls this free compressor is available for Windows MacOSX and Linux.
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InstaLooper is a simple looper with five integrated FX for Mac, Windows and Linux (AudioUnit & VST, 64-Bit)
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U-He, in conjunction with Amazona.de put this awesome synth together! Definitely one to add to the collection!
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Everybody should know the first version of the famous RaveGenerator VST plugin and here is version 2, bigger and better than before.
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Tremolo is one of the first electric audio effect. At the beginning of the 50’s, many companies began incorporating the effect into guitar amplifier.
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This free delay plugin allows you to repeat the input signal periodically like an echo.
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Meet the PCM2612 Retro Decimator Unit, a bitcrusher effect plug-in with a distinctive legacy.
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TAL-Filter-2 is a host synced filter module with different filter types, panorama and volume modulation possibilities.
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The sound of this 24-voice polyphonic beast will take you from your studio right to Valhalla. Earth shattering basses, exquisite leads or mad FX, Odin's got them all! Use the classic sound of analog waveforms - or draw your own.
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