Life & fun · alternatives · 2026
24 alternatives to A spectrogram app in less than 100 lines of HTML and JavaScript
A spectrogram app built with minimal code—less than 100 lines of HTML and JavaScript. It visualizes sound frequencies in real time, converting audio input into a visual frequency display. The tool is designed for… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A spectrogram app in less than 100 lines of HTML and JavaScript launched in 2019; newer entries below may have overtaken it.
- 1IV
2023 · webfft.net · its alternatives →
- 2RT
2020 · grz0zrg.github.io · its alternatives →
- 3RV
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 →
- 4

- 5

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 →
- 6

- 7

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 →
- 8

Mixes intended for listening while programming
2015 · musicforprogramming.net · its alternatives →
- 9

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 →
- 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 →
- 11WR
Find information, resources and relevant links for getsoundbrush.com. This domain may be for sale.
2013 · getsoundbrush.com · its alternatives →
- 12

Optimize the audio quality of your loudspeakers. Contribute to erdewit/HiFiScan development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 13SV
2021-09-07: New version (1.4) now works on M1 macs. Performance improvements released for both iOS and MacOS. Follow the app on Facebook, Twitter! Subscribe to email list to hear about the future developments. See live sound with high-precision details across both, time and frequency domains! iOS (i
2020 · vsound.app · its alternatives →
- 14

- 15

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 →
- 16HW
Harmogram is an Audio Visual experiment made by Adrian le Bas and powered by the HTML5 Audio API
2012 · harmogram.com · its alternatives →
- 17

- 18

- 19
Melodic Mind▲134Intuitive touch-based Mobile DAW with Integrated Music theory. Audio effects & Toolkit. Ear training. Songwriting. Start creating music now.
Nov 2025 · melodic-mind.com · its alternatives →
- 20

2018 · acarabott.github.io · its alternatives →
- 21
Specdrums▲70App-connected rings that turn color into sound
2017 · kickstarter.com · its alternatives →
- 22
Pitch▲110Become a better musician by tracking your progress!
2017 · apps.apple.com · its alternatives →
- 23

This app allows you to convert an image to audio file, and Decode, Play a audio file via spectrogram. You can make a sound image that is viewable on a spectrogram. With this app you can convert your images to audio and secretly send them to others.
Jun 2026 · nsspot.herokuapp.com · its alternatives →
- 24

Also compare
- I've built a spectrogram analyzer web app alternatives
- Real-time bandpass filter bank audio spectogram alternatives
- Realtime visualization of 3D spectrogram with THREEJS shaders alternatives
- Waveformer alternatives
- YouTube Musical Spectrum – visualizer for YouTube with musical notes alternatives
- Octave 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 →