Developer nakst has announced that Integrate, a virtual analog synthesizer for Windows and Linux, is now available for free. The instrument was initially priced at $54.99 when released in 2022.
Integrate takes inspiration from classic virtual analog synths but isn’t a straight emulation of any single piece of hardware. Instead, it feels like a modern reinterpretation of multiple synths from that era.
I like how the instrument has a clean interface while sporting a deep and characterful sound engine. After spending some time with it, it kind of reminds me of Charlatan, but with a lot more options. You’re never digging through menus, yet there’s plenty to explore once you start tweaking.
At the core of Integrate’s synthesis engine are four main oscillators, split across Oscillator A and B, plus a dedicated sub oscillator.
The main oscillators offer a generous selection of waveforms, including traditional shapes and a flexible noise generator. I really like that the classic waveforms aren’t static; each has a dedicated parameter you can modulate, which makes it easy to create subtle movement or more extreme evolving sounds.
The noise generator is also more interesting than usual, with adjustable color and key tracking that can give you chiptune-style tones reminiscent of early video game consoles.
One of Integrate’s standout features is the oscillator character section. You can switch between Clean and Digital modes, which has a big impact on the overall tone. Clean mode feels more polished, while Digital mode introduces grit, aliasing, and a sharper edge.
It’s great for pushing a simple patch into more aggressive territory right from the start and without adding extra processing later in the chain. This reminds me of the C64 emulation I bought from plogue recently, where choosing the emulated SID chip model makes all the difference.
Both main oscillators include a unison section, letting you stack up to seven voices with adjustable detune and stereo spread. This is where Integrate really shines for big, anthemic sounds.
Thick supersaws, wide pads, and trance-style leads come together very quickly, and the synth clearly encourages you to experiment with these types of fat sounds.
On the tone shaping side, Integrate includes two flexible filters that can run in split, serial, or parallel configurations, each with multiple modes and built-in saturation.
The effects section is equally impressive for a free synth, with nine effects units, including delay, reverb, chorus, phaser, trancegate, EQ, multiband distortion, compression, and an arpeggiator. You can enable or disable each effect individually or bypass everything with a single click.
Modulation is handled via three LFOs, two modulation envelopes, and a modulation matrix, and assigning modulation is refreshingly straightforward: just click a highlighted control and you’re done. The interface also makes clever use of pop-up visual feedback, so waveforms, envelopes, and spectra appear only when you need them.
Integrate supports the CLAP plugin format and is free from copy protection, with no activation or online checks required. It’s available as a 64-bit plugin for Windows and Linux, with CLAP support and a separate effects plugin included.
Download: Integrate (FREE)
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Last Updated on December 12, 2025 by Tomislav Zlatic.
