SynthMaster One is currently free until January 4, giving producers a chance to add a fully‑featured wavetable synthesizer to their toolkit at no cost. Normally priced at $49, this versatile retro-style soft synth delivers a surprisingly deep sound engine with stereo wavetable oscillators, a sub‑oscillator, multiple filter types, envelopes, LFOs and a built‑in arpeggiator and step sequencer.
What makes it genuinely exciting is the breadth of sounds it can produce: from classic/vintage electronic instruments, supersaws, basses, warm pads and plucky leads to evolving textures, organic beds and atmospheric soundscapes – all crafted through an intuitive drag‑and‑drop modulation workflow that keeps sound design fast and fun. Whether you’re producing EDM, cinematic scores, trap, synthwave or ambient music, SynthMaster One stands out as a powerful free VST plugin that brings professional‑grade synthesis into everyday production without the usual price tag. It is a cross‑platform synth that runs on both Windows and macOS (64-bit systems) with broad plugin‑format support for modern DAWs, including VST, VST3, AU and AAX. A standalone version is also available.
Back in September, KV331 Audio also released SynthMaster 3 Free Player, a streamlined, preset‑focused edition of their flagship synth engine, giving producers instant access to 500 curated factory presets drawn from SynthMaster One, SynthMaster 2 and SynthMaster 3. While it’s designed for musicians who prefer browsing high‑quality sounds rather than building patches from scratch, it still delivers a wide palette of usable tones – from lush pads and cinematic textures to deep basses, plucks, leads and electronic soundscapes. With both SynthMaster One now free for a limited time and SynthMaster 3 Free Player already available, KV331 has quietly built one of the strongest free synth ecosystems in modern music production.





