Tone2 NanoHost NanoHost is a free host application that can load your favourite VST synths and turn them into standalone, playable instruments.

Retro Boy is a new free single-oscillator synth from SBAudio that's designed for creating chiptune-style sounds. It comes with seven selectable waveshapes and various other controls.

Vital (VST, VST3, AU, LV2 and standalone) is a wavetable synth with spectral warping, and this adds control over the harmonics of the wavetable, allowing you to stretch, shift, smear and skew them ...

Arturia gives its Pigments super synth a massive free update Pigments 3 adds a harmonic synth engine, a utility layer, 64 new wavetables and four new effects.

Reason Compact puts a free music synthesizer on your phone You won't build full masterpieces, but it won't cost anything to try.

AudioKit Synth One, a free and open-source iPad synth, is now available for download in the Apple App Store, developer Matthew Fecher has announced.