ONE Instrument® is Free — And It Comes With the Best Free Plugins, Already Inside

ONE Instrument® is completely free to download and use. With a simple free registration, you also get access to a growing set of high-quality features — including a built-in recorder, curated sound libraries, and some of the best free plugins available today.

Everything included is free. No hidden costs. No demo limitations.

Included Free Synth Plugins

Dexed by Digital Suburban
Dexed is an FM synthesizer modeled after the Yamaha DX7. It delivers the crisp, metallic tones of classic 80s digital synths and includes full compatibility with original DX7 patches.

OB-Xd by discoDSP
OB-Xd emulates the analog warmth of the Oberheim OB-X. With rich unison textures and micro detuning, it’s perfect for classic leads, vintage pads and analog bass.

OS-251 by Onsen Audio
This lo-fi synth pays tribute to the iconic Roland Juno line, offering a simple layout and lush, nostalgic tones — ideal for indie, lofi, and synthwave productions.

Surge XT by Surge Synth Team
A hybrid synthesis powerhouse combining subtractive, FM, wavetable, and more. Surge XT is open source, deeply programmable, and packed with thousands of free presets.

Why Use Them Inside ONE Instrument®

• One Interface for Everything
  No more jumping between different plugin windows. ONE Instrument® gives you a single, fast interface where you can browse, play, and organize your sounds instantly.

• Smart Search with Tagging
  Every plugin and every sound is searchable using an advanced tagging system. Looking for a soft pad, a dark piano, or a clean synth bass? You’ll find it in seconds.

• Curated Free Sound Libraries
  ONE Instrument® includes categorized sound libraries, all clearly marked and selected by our team of musicians. Some are created in-house, others come from the best free content available online — all organized for instant access.

• Built-in Recorder
  Need to capture an idea fast? Record directly inside ONE Instrument® and save your sketches without even opening a DAW.

• Tested and Selected by Our Team
  Our team researches, tests, and selects the most inspiring free plugins available. Only those that meet our quality and stability standards are included, so you can trust what you’re working with.

And More Free Tools Are Coming

We’re constantly adding new plugins and libraries — always free, always tested, always selected with creators in mind.

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