Dev tools · alternatives · 2026
24 alternatives to The ZynAddSubFX open source musical synthesizer
The ZynAddSubFX open source musical synthesizer is a development tool for creating and manipulating sounds. It offers both additive and subtractive synthesis capabilities, allowing users to design complex audio through… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. The ZynAddSubFX open source musical synthesizer launched in 2018; newer entries below may have overtaken it.
- 1KS
2015 · amid.fish · its alternatives →
- 2
I built a synthesizer based on 3D physicsfree tier, from $99/mo▲512I've been working on the Anukari 3D Physics Synthesizer for a little over two years now. It's one of the earliest virtual instruments to rely on the GPU for audio processing, which has been incredibly challenging and fun. In the end, predictably, the GUI for manipulating the 3D system actually ended up being a lot more work than the physics simulation. So far I am only selling it direct on my website, which seems to be working well. I hope to turn it into a sustainable business, and ideally I'd have enough revenue to hire folks to help with it. So far it's been 99% a solo project, with…
2025 · anukari.com · its alternatives →
- 3AS
- 4MZ
Screenshot of framework in action
2018 · log.fundamental-code.com · its alternatives →
- 5
Keyboard-controlled music sequencer, sampler, and synth - kofigumbs/typebeat
2022 · github.com · its alternatives →
- 6
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Tones is a simple, open, collaborative music-making platform. All tones are created using the built-in synthesizer.
2018 · tones.fm · its alternatives →
- 8
If you already know what bytebeat is, you don't need an explanation. If not, check my project :) Here is how it looks: SELECT mono(output( arraySum(x -> 1 / 6 * running_envelope(30 * (1 + x / 6), time, 0.05 * x, 0.005, lfo(0, 0.25, sine_wave, time / 8), 0.1) * sine_wave(time * 80 * exp2(x / 3)), range(12)))) FROM table; To check how it sounds, find the examples in the repository https://github.com/ClickHouse/NoiSQL
2023 · github.com · its alternatives →
- 9
Hi HN, I built Contrapunk because I wanted to play guitar and hear counterpoint harmonies generated in real-time. It takes audio from your guitar, MIDI player or your computer keyboard and generates harmony voices that follow counterpoint rules to generate harmonies. You can choose the key you would like to improvise/play in and the voice leading style and which part of the harmony you would like to play as, as well. macOS DMG: https://github.com/contrapunk-audio/contrapunk/releases/tag/... Source:…
Apr 2026 · contrapunk.com · its alternatives →
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Draw.Audio is a free online music maker. Draw notes on a grid and hear them play back instantly — a browser-based synthesizer, sequencer, and visual instrument.
2024 · draw.audio · its alternatives →
- 12SO
2017 · soundmoose.com · its alternatives →
- 13FA
Hi all, I've spent some time working on music demixing or music source separation algorithms, which take in a mixed song and output estimates of isolated components (e.g. vocals, drums, bass, other). I took a popular PyTorch model with good performance (Open-Unmix, UMX-L weights), reimplemented the inference steps in C++, and compiled it to WebAssembly for a free client-side music demixer.
2023 · sevag.xyz · its alternatives →
- 14
I built k-synth as an experiment to see if a minimalist, K-inspired array language could make sketching waveforms faster and more intuitive than traditional code. I’ve put together a web-based toolkit so you can try the syntax directly in the browser without having to touch a compiler: Live Toolkit: https://octetta.github.io/k-synth/ If you visit the page, here is a quick path to an audio payoff: - Click "patches" and choose dm-bell.ks. - Click "run"—the notebook area will update. Click the waveform to hear the result. - Click the "->0" button below the waveform to copy…
Mar 2026 · octetta.github.io · its alternatives →
- 15FE
2019 · kousun12.github.io · its alternatives →
- 16AW
NoiseCraft is an open source, visual programming language and platform for sound synthesis and music making, with the goal of creating a community for the open exchange of musical ideas. The design is loosely inspired by PureData, Max/MSP as well as other visual programming languages. NoiseCraft is
2022 · noisecraft.app · its alternatives →
- 17
This is part of my journey on pybind11. I wrote a tiny FM Synthesis library in C++ and a Python wrapper for that using pybind11. There is a command-line piano app in the examples directory if you want to play with it. Here is the link: https://github.com/charstorm/koelsynth/tree/main/examples/si... My next target is to attach this to some kind of physics simulation - like a bunch of balls moving around in a box with some internal walls. When the ball hits certain trigger points, it produces the sound.
2023 · github.com · its alternatives →
- 18
Fully Open-sourced Online MIDI Editor
2020 · signal.vercel.app · its alternatives →
- 19
C Pixels-based graphical audio synthesizer implemented as a WebSocket server - grz0zrg/fas
2020 · github.com · its alternatives →
- 20R4
2015 · barakchamo.github.io · its alternatives →
- 21
Audio Kit▲96Open-source audio synthesis, processing & analysis platform.
2014 · audiokit.io · its alternatives →
- 22
SFX Engine▲137I’ve been building SFX Engine, an AI audio playground, and just launched a DJ transitions feature. You drop in two songs, and the app generates a clean, beat-matched transition, just like how a DJ would make! Would love any feedback!
2024 · sfxengine.com · its alternatives →
- 23
WX ▲111An experimental synth for playable generative sound
Jul 2026 · scrapbrainaudio.com · its alternatives →
- 24WA
Hi, I'm the author of this little Web Audio toy which does physical modeling synthesis using a simple spring-mass system. My current area of research is in sparse, event-based encodings of musical audio (https://blog.cochlea.xyz/sparse-interpretable-audio-codec-pa...). I'm very interested in decomposing audio signals into a description of the "system" (e.g., room, instrument, vocal tract, etc.) and a sparse "control signal" which describes how and when energy is injected into that system. This toy was a great way to start learning about physical modeling synthesis, which seems…
2025 · blog.cochlea.xyz · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →