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Dev tools · alternatives · 2026

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24 alternatives to A browser-based tone generator built with the Web Audio API

I built maketonesonline.com — a simple browser-based tone generator to experiment with the Web Audio API. What it does: Generates tones from 20 Hz to 20,000 Hz Supports sine, square, triangle, and sawtooth waveforms Lets you adjust frequency, volume, and left/right stereo pan Includes multi-tone, binaural beat, subwoofer/bass frequency, and sweep tone modes It’s useful for testing speakers, hearing tests, exploring sound design, or just seeing how high a pitch you can still hear. Check it out: https://maketonesonline.com I’d love your thoughts, bug reports, or ideas for…

Maketonesonline.com is a browser-based tone generator that produces frequencies from 20 Hz to 20,000 Hz using sine, square, triangle, and sawtooth waveforms. Users can adjust frequency, volume, and stereo panning, with… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Free online tone generator. Play any frequency from 1 Hz to 20 kHz with sine, square, saw or triangle waves. Test speakers, tune, check your hearing.

    Aug 2026 · soundtonegenerator.com · its alternatives →

  2. 2

    Tones is a simple, open, collaborative music-making platform. All tones are created using the built-in synthesizer.

    2018 · tones.fm · its alternatives →

  3. 3

    One shot sample generation for the SignalsAndSorcery.com platform - shiehn/sas-sample-generator

    2024 · stability.ai · its alternatives →

  4. 4AS
  5. 5IV
  6. 6

    Simple tool to generate tones between 1Hz and 24000Hz

    2017 · play.google.com · its alternatives →

  7. 7

    Generate custom metal music tracks with DJEN, the powerful online music generator. Choose from a wide range of customization options to create the perfect sound, then save and share your tracks with the DJEN community.

    2016 · djen.co · its alternatives →

  8. 8

    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 →

  9. 9

    Generative AI for audio made simple

    2023 · ai.meta.com · its alternatives →

  10. 10

    Exchange URLs with nearby computers (using sound)

    2015 · chromewebstore.google.com · its alternatives →

  11. 11

    Pro-grade tone generator with live visuals. 100% free.

    Jun 2026 · octaveview.com · its alternatives →

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  13. 13

    Creative melody generator VST for music producers

    2021 · audiocipher.com · its alternatives →

  14. 14

    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 →

  15. 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. 16

    Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…

    Aug 2026 · baselashraf81.github.io · its alternatives →

  17. 17

    Hi HN, Gabriel here. This is a standalone binaural beat generator, combined with a two-deck local audio player built with the Web Audio API. It includes ten harmonic carrier pairs, seven brainwave-state presets, per-harmonic mixing (so the binaural tones aren't out-of-tune with the music), adjustable beat and carrier frequencies, two oscillator shapes, offline key&#x2F;BPM analysis, automatic carrier matching, adaptive impulse noise, playlist support, and output recording. The main problem I've had with existing "binaural beat" generators is that the tone generated does not remain in-tune…

    Jul 2026 · github.com · its alternatives →

  18. 18RA

    Hey HN. I built this quick and dirty component to render audio waveforms using WebGPU. I just published it to NPM. It's the first time I use WebGPU and it's been a while since I write shaders. Feedback is very welcome! GitHub: https:&#x2F;&#x2F;github.com&#x2F;mrkev&#x2F;webgpu-waveform Examples: https:&#x2F;&#x2F;aykev.dev&#x2F;webgpu-waveform

    2024 · its alternatives →

  19. 19

    Dear, This is an update from first submission [1]. New features: - add Hz scale - add YT Music support - add microphone recording - add scale (x and y) options to reduce CPU usage [1] https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=28135562

    2021 · github.com · its alternatives →

  20. 20WA

    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:&#x2F;&#x2F;blog.cochlea.xyz&#x2F;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 →

  21. 21IM

    2022 · signalsandsorcery.org · its alternatives →

  22. 22

    A web app that turns images into sound

    2021 · ojack.xyz · its alternatives →

  23. 23

    This is a (silly, little) app which lets you make noise music using a color picker as an instrument. When you click on a specific point in the color picker, a bit of JavaScript maps the binary representation of the clicked-on color's hex-code to a "chord" in the 24 tone-equal-temperament scale. That chord is then played back using a throttled audio generation method which was implemented via Tone.js. NOTE! Turn the volume way down before using the site. It is noise music. :)

    Jan 2026 · visualnoise.ca · its alternatives →

  24. 24

    Web-based collaborative real-time audiovisual live coding environment with pixels based image-synth approach to sound synthesis.

    2021 · fsynth.com · 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 →