Life & fun · alternatives · 2026
24 alternatives to Karplus-Strong Guitar Synthesizer in JavaScript
The Karplus-Strong Guitar Synthesizer is a JavaScript-based tool that generates guitar sounds using the Karplus-Strong algorithm, a method for synthesizing plucked string instruments. It allows users to create and… 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 2 we have checked on their own sites, 2 of them free or with a free tier. Karplus-Strong Guitar Synthesizer in JavaScript launched in 2015; newer entries below may have overtaken it.
- 1

Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
9d ago · guitoro.com · its alternatives →
- 2AS
- 3

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 →
- 4
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 →
- 5

python framework for creating music applications. Contribute to synestematic/kord development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 6
SoundGate Guitar▲414Discover SoundGate’s AI-powered guitar learning experience with real-time feedback and personalized practice.
Jul 2026 · soundgate.ai · its alternatives →
- 7

Guitar plugin made with JUCE that uses neural networks to emulate a tube amplifier. - GuitarML/SmartGuitarAmp
2020 · github.com · its alternatives →
- 8

- 9TZ
2018 · zynaddsubfx.sf.net · its alternatives →
- 10

Generate guitar tablatures using a constraint solver - aumouvantsillage/TablaZinc
2020 · github.com · its alternatives →
- 11

A beautiful and accessible guitar component for React.
2020 · react-guitar.com · its alternatives →
- 12

Learn music better with our living sheet music.
2012 · soundslice.com · its alternatives →
- 13

Keyboard-controlled music sequencer, sampler, and synth - kofigumbs/typebeat
2022 · github.com · its alternatives →
- 14

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 →
- 15

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 →
- 16

GuitarConvert is an advanced online tool that transcribes any guitar audio file (MP3, WAV) or YouTube video into accurate guitar tablatures and MIDI files in seconds. With its dedicated AI model trained specifically on guitar sounds, it extracts notes, rhythms, and string positions with unmatched precision. You don’t need to install anything. Simply upload your recording, and GuitarConvert instantly delivers high-quality sheet music you can download in PDF, MIDI, or MusicXML format. Whether you’re a guitarist, teacher, composer or arranger, this tool saves hours of manual transcription work…
2021 · latouchemusicale.com · its alternatives →
- 17

- 18

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 →
- 19

In 2020, Magenta released DDSP [1], a machine learning algorithm / python library which made it possible to generate good sounding instrument synthesizers from about 6-10 minutes of data. While working with DDSP for a project, we realised how it was actually quite hard to find 6-10 minute of clean recordings of monophonic instruments. In this project, we have combined the DDSP architecture with a domain adaptation technique from speech synthesis [2]. This domain adaptation technique works by pre-training our model on many different recordings from the Solos dataset [3] first and then…
2022 · erlj.notion.site · its alternatives →
- 20

- 21

Harmopark is a browser-based music tool that can be used for different purposes, ranging from visually grasping harmony concepts to playing around with chord progressions.
2019 · harmopark.app · its alternatives →
- 22

Hi folks, About seven months ago, via HN, I got nerdsniped into a silly guitar transcription problem and made a bunch of really senseless code but what came out of it was what I thought at the time could potentially be pretty useful - a guitar fretboard mapper and fingering scoring algorithm. So as of yesterday morning I've finally put those bits of code to "good" use, creating gtrsnipe to convert between MIDI files (.mid) and ASCII tab (as well as VexTab and ABC notation) and any combination/direction among the set of formats. gtrsnipe tries to intelligently find the best neck and…
2025 · github.com · its alternatives →
- 23

Portable MIDI guitars for music production & instruction.
2018 · indiegogo.com · its alternatives →
- 24
KRFT 1.5.0▲110A modular instrument for music production
2017 · studioamplify.com · its alternatives →
Also compare
- Guitoro, a virtual guitar you strum with your keyboard alternatives
- A singing synthesizer for the browser with automatic 3-part harmony alternatives
- What if your synthesizer was powered by APL (or a dumb K clone)? alternatives
- I built a synthesizer based on 3D physics alternatives
- Kord – Python tool for displaying guitar chords/scales on your terminal alternatives
- SoundGate Guitar alternatives
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 →