nakst Altitude Is Now Free: A Full Hybrid Synth
nakst Altitude, a hybrid virtual analog, sampling, and FM synth workstation, is now a free download. Full specs, engines, and how it compares to Vital and Surge XT.
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nakst has made Altitude, its advanced hybrid synthesis workstation, a free download. The change happened on 1 August 2026, moving what was previously a paid instrument into freeware for Windows, macOS, and Linux. For anyone building a serious free synth collection, this is one of the more capable instruments to arrive without a price tag.
At a glance: Free, no DRM. A hybrid synth combining virtual analog, sampling, and FM, with eight generators, two multi-mode filters, eight effect slots, deep modulation, and over 300 presets. Runs as CLAP, Audio Unit, and an FL Studio native plugin, plus standalone, on Windows, macOS, and Linux with native Apple Silicon support.
What is nakst Altitude?
Altitude is a single instrument that folds three different synthesis approaches into one voice. It offers virtual analog oscillators, sample playback, and FM-style modulation, and it lets them work together rather than forcing you to choose one. The developer describes it as a hybrid synthesis workstation, and that is accurate: it is closer to a full sound-design environment than a one-trick synth.
The instrument was previously commercial. According to nakst, it did not sell in the numbers needed to sustain it, and the developer moved on to other work, so Altitude has been released as freeware rather than left to fade out. That backstory is worth knowing, because it means you are getting a fully developed, paid-grade instrument for free, not a stripped-down teaser.
It lands in a crowded but high-value category: the free hybrid synth. The obvious reference points are Vital and Surge XT, both free and both excellent, and Altitude holds its own against them on depth.
What Altitude does, feature by feature
Eight generators: analog, sample, and FM
The core of the voice is eight generators, split as four virtual analog oscillators and four sample layers. That structure is what makes the synthesis genuinely hybrid. You can stack analog oscillators for a classic subtractive sound, layer in sampled material for realism or texture, and use FM-style routing between generators for metallic and evolving tones, all in the same patch.
Dual filters with fifteen algorithms
Signal runs into two filters offering fifteen filter algorithms between them. That covers the usual low-pass, high-pass, band-pass, and notch shapes, plus more characterful models, and running two in series or parallel opens up complex, resonant filtering that a single-filter synth cannot reach.
Eight effects, seventeen types
Altitude includes eight effect slots that draw on seventeen effect types. That is a full internal effects rack, enough to finish a patch inside the instrument without reaching for separate plugins. Reverb, delay, distortion, modulation effects, and more can be chained per patch.
A modulation system that goes deep
This is where Altitude separates itself from simpler free synths. It offers five envelopes, four LFOs, two step modulators, and four math modulators, all feeding a 21-slot modulation matrix with over 500 possible destinations. Two 24-step sequencers add rhythmic movement. For sound designers, this is the real draw: almost any parameter can be modulated by almost anything, which is how you get patches that evolve and breathe rather than sit still.
Interface and workflow
The trade-off for all that depth is a dense interface. Altitude packs a lot on screen, and it is not the synth to hand a complete beginner. It does include UI scaling from 100% to 300%, which helps on high-resolution displays, and over 300 built-in patches give you a working starting point while you learn the layout.
nakst Altitude specifications
| Spec | Detail |
|---|---|
| Product | nakst Altitude |
| Type | Hybrid synth: virtual analog + sampling + FM |
| Generators | 8 (4 oscillators + 4 sample layers) |
| Filters | 2, with 15 algorithms |
| Effects | 8 slots, 17 types |
| Modulation | 5 envelopes, 4 LFOs, 2 step + 4 math modulators, 21-slot matrix, 500+ destinations |
| Sequencers | Two 24-step |
| Presets | 300+ |
| Formats | CLAP, AU (macOS), FL Native (Windows), standalone |
| Platforms | Windows, macOS (Apple Silicon), Linux |
| UI | Scalable 100%–300% |
| Price | Free, no DRM |
| Released free | 1 August 2026 |
Altitude vs Vital vs Surge XT
The free hybrid synth field is strong. Here is how Altitude sits against the two best-known options.
| nakst Altitude | Vital | Surge XT | |
|---|---|---|---|
| Price | Free (was paid) | Free (paid tiers exist) | Free, open source |
| Synthesis | VA + sampling + FM | Wavetable + sampling | VA + wavetable + FM |
| Oscillators | 8 generators | 3 + sample | 3 (scene-based) |
| Filters | 2, 15 algorithms | 2 | Multiple, many types |
| Formats | CLAP, AU, FL Native | VST3, AU, CLAP | VST3, AU, CLAP, LV2 |
| Best for | Deep hybrid sound design | Visual wavetable design | Open, endlessly deep synthesis |
Which to pick. Choose Altitude if you want a hybrid engine that mixes analog oscillators, samples, and FM in one voice, and you value a large modulation matrix. Choose Vital if wavetable synthesis with a clear visual workflow is your priority. Choose Surge XT if you want the widest format support, open-source longevity, and the deepest all-round feature set. All three are free, so the honest advice is to install more than one.
Who Altitude is for
Consider it if you are a sound designer who wants maximum routing flexibility for nothing. The generator count, dual filters, and modulation matrix reward patient patch-building.
Consider it if you use a CLAP host or FL Studio. The format support lines up cleanly with those workflows, and the FL Native build in particular is a bonus for FL users.
Skip it if you want something simple and immediate, or if your DAW only supports VST3. Altitude has a learning curve, and without a VST3 build it will not load in every host.
How much does Altitude cost?
Nothing. Altitude is now a free download with no DRM or copy protection, available directly from the developer. It was previously a paid instrument, so this is the full version rather than a limited edition. There is no account requirement and no subscription; you download it and it works.
FAQ
Is nakst Altitude really free?
Yes. As of 1 August 2026 it is a free download with no copy protection. It was previously sold as a paid plugin, and this release makes the complete instrument free.
What formats does Altitude support?
CLAP on all platforms, Audio Unit on macOS, and an FL Studio native plugin on Windows, plus a standalone application. There is no VST3 build, so a CLAP-capable host or FL Studio is the smoothest route.
Does Altitude run on Apple Silicon?
Yes. The macOS build is native on Apple Silicon, and Altitude also runs on Windows and Linux.
Is Altitude good for beginners?
It is powerful but dense. Beginners may find Vital or a simpler synth easier to start with, then grow into Altitude's deeper modulation once the basics click.
The bottom line
Altitude was a paid hybrid synth workstation, and it is now free with no strings attached. Three synthesis approaches in one voice, dual filters, a full effects rack, and a modulation system with a 21-slot matrix add up to an instrument that can go toe to toe with the best free synths on depth. The dense interface and the lack of a VST3 build are the catches. But for sound designers willing to learn it, this is one of the most capable free instruments available, and it costs nothing to find out.
