Life & fun · alternatives · 2026
24 alternatives to I've built a spectrogram analyzer web app
This is a web-based spectrogram analyzer that converts audio into visual frequency representations. Built for anyone interested in sound analysis, music production, or audio visualization, it runs directly in a browser… 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. I've built a spectrogram analyzer web app launched in 2023; newer entries below may have overtaken it.
- 1AS
2019 · simplespectrogram.app · its alternatives →
- 2RT
2020 · grz0zrg.github.io · its alternatives →
- 3
Hi HN, I’ve been working on a browser-based tool for exploring and debugging Web Audio API graphs. Web Audio Studio lets you write real Web Audio API code, run it, and see the runtime graph it produces as an interactive visual representation. Instead of mentally tracking connect() calls, you can inspect the actual structure of the graph, follow signal flow, and tweak parameters while the audio is playing. It includes built-in visualizations for common node types — waveforms, filter responses, analyser time and frequency views, compressor transfer curves, waveshaper distortion, spatial…
Mar 2026 · webaudio.studio · its alternatives →
- 4
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://news.ycombinator.com/item?id=28135562
2021 · github.com · its alternatives →
- 5
sound spectrum analyzer, spectrogram, tone generator
Aug 2026 · onlinespectrumanalyzer.com · its alternatives →
- 6
- 7
- 8RV
I've been working with 2D spectrograms for a while now while working with Speech recognition. It had always fascinated me how speech and words had such distinct features. Looking at spectrograms is essentially like hearing with your eyes. Over the weekend i built a tool to visualize your own audio into a spectrogram in 3D. I used threeJS with shaders and vanilla JS/Html. Play with it here : https://spectrogram-threejs.vercel.app/ I hope it brings you as much joy as it does for me.
2022 · its alternatives →
- 9RR
Last April I shared about my Resonate project here (https://news.ycombinator.com/item?id=43694157) A lot has happened since: the work I presented in much more detail at last June's International Computer Music Conference (ICMC) got best paper award. I also gave a talk at the Audio Developer Conference in Bristol last November, the video is on YouTube). This year's work, which I recently presented at this year's ICMC, starts with known techniques from the phase vocoder literature to build self-tuning filter banks that extract very efficiently the frequency components that are…
2025 · alexandrefrancois.org · its alternatives →
- 10
Turns an image into an audio file. Image is visible on the spectrogram. - GitHub - kylophone/spectrophoto: Turns an image into an audio file. Image is visible on the spectrogram.
2015 · github.com · its alternatives →
- 11
Learn how to play your favorite piano songs using ML
2022 · nickplee.com · its alternatives →
- 12
Pianolyze▲149Hey HN, I'm a pianist who's always been obsessed with understanding how great players think through harmony. What voicings are they using? How do they voice lead through changes? What's actually happening under their hands? Back in 2022, I built Harmonic Analyzer (https://www.youtube.com/watch?v=iNgSgvUmiOs) – a Mac app that used ML to transcribe polyphonic piano recordings. It got some traction, but I never quite finished it. Requiring users to download a Mac app felt like unnecessary friction, and I didn’t want to limit distribution to Mac users. I just shipped Pianolyze…
Nov 2025 · pianolyze.com · its alternatives →
- 13
Contribute to soundshader/soundshader.github.io development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 14
- 15HW
Harmogram is an Audio Visual experiment made by Adrian le Bas and powered by the HTML5 Audio API
2012 · harmogram.com · its alternatives →
- 16
MeloCraft is a software for displaying spectrogram and musical pitch in real time with a basic microphone. Free download available.
2015 · melocraft.net · its alternatives →
- 17
This has been a pet project of mine for the past ~5 months. It consists of six visualizations: - Spectrogram: Implements the reassignment method for sharper time and frequency resolution. - Spectrum analyzer: A-weighted, frequency guidelines, loudest frequency tooltip. - Waveform: Colored based on frequency, loudness, or static - Oscilloscope: Tracks pitch and autocorrelates against a reference signal, provides stability. Also includes a regular zero-crossing trigger. - Stereometer & Phase meter: Linear and exponential scaling modes, adjustable windows. Multi-band correlation meter. -…
Mar 2026 · github.com · its alternatives →
- 18
This online virtual oscilloscope allows you to visualise live sound input and get to grips with how to adjust the display. If you find this useful, our online spectrum analyser may also be of interest to you.
2016 · academo.org · its alternatives →
- 19
Optimize the audio quality of your loudspeakers. Contribute to erdewit/HiFiScan development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 20
Beats, a web-based drum machinefree▲160Hello all! I've been an avid fan of Pocket Operators by Teenage Engineering since I found out about them. I even own an EP-133 K.O. II today, which I love. A couple of months ago, Reddit user andiam03 shared a Google Sheet with some drum patterns [1]. I thought it was a very cool way to share and understand beats. During the weekend I coded a basic version of this app I am sharing today. I iterated over it in my free time, and yesterday I felt like I had a pretty good version to share with y'all. It's not meant to be a sequencer but rather a way to experiment with beats and basic sounds,…
Jan 2026 · beats.lasagna.pizza · its alternatives →
- 21
Audio landmark fingerprinting as a Node Stream module - adblockradio/stream-audio-fingerprint
2017 · github.com · its alternatives →
- 22
2018 · acarabott.github.io · its alternatives →
- 23RA
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://github.com/mrkev/webgpu-waveform Examples: https://aykev.dev/webgpu-waveform
2024 · its alternatives →
- 24WD
2018 · dsp.audio · its alternatives →
Also compare
- A spectrogram app in less than 100 lines of HTML and JavaScript alternatives
- Real-time bandpass filter bank audio spectogram alternatives
- Web Audio Studio – A Visual Debugger for Web Audio API Graphs alternatives
- YouTube Musical Spectrum – visualizer for YouTube with musical notes alternatives
- Online Spectrum Analyzer alternatives
- Waveformer 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 →