Audiogram (NYPR)Open-source Node.js tool from New York Public Radio for turning audio clips into waveform videos.
Linux · Mac · Open source
Audiogram (NYPR)Open-source Node.js tool from New York Public Radio for turning audio clips into waveform videos.
Linux · Mac · Open source
High-resolution real-time spectrum analyser available as a web music player and a JavaScript library.
Web · Open source
Open-source standalone Windows visualiser built on a customised MilkDrop 2 engine.
Win · Open source
WebGL implementation of the MilkDrop visualiser that runs MilkDrop presets in the browser.
Web · Open sourceConsole-based audio spectrum visualiser for Linux, macOS, FreeBSD and Windows.
Linux · Mac · Win · Open source
CavalierGraphical Linux audio visualiser for GNOME, built on the cava engine.
Linux · Open source
Browser-based live coding environment for networked visuals, with audio reactivity through FFT input.
Web · Open sourceJavaScript audio feature extraction library for building audio-reactive web and Node.js projects.
Web · Open source
MilkDrop 3Free, portable Windows music visualiser that continues the MilkDrop 2 engine with new features and presets.
Win
musicvid.orgFree, open-source online music visualiser for making visualiser videos in the browser.
Web · Open sourceFree, open-source software oscilloscope for viewing and exporting oscilloscope music on a computer.
Win · Mac · Linux · Open sourceBeginner-friendly creative coding library whose sound add-on provides FFT and amplitude analysis for visualisers.
Web · Open source
projectMOpen-source, cross-platform reimplementation of MilkDrop, available as a library and in several media players.
Linux · Mac · Win · Open source
Sonic VisualiserFree, open-source application for visualising, analysing and annotating audio recordings.
Win · Mac · Linux · Open source
Lightweight, open-source acoustic spectrum analyser that draws a spectrogram of an audio file.
Win · Mac · Linux · Open source
SpinningVinylFree browser tool that turns cover art and audio into a spinning vinyl record video.
Web
Free real-time audio visualiser in the browser that reacts to microphone, files or shared system audio.
WebFree, open-source media player with built-in audio visualisations including spectrum, scope, Goom and projectM.
Win · Mac · Linux · Open source
Free real-time FFT spectrum analyser plugin for mixing and mastering.
Win · Mac
wavesurfer.jsOpen-source JavaScript library for rendering interactive audio waveforms in web pages.
Web · Open sourceOpen-source recreation of Winamp 2 in the browser, including a MilkDrop visualiser window.
Web · Open sourceFree browser oscilloscope that plots audio files, microphone input or generated signals in XY mode.
WebThese products are free to use, with no paid tier needed for the core features. Many are open source. Products with a free plan but paid upgrades are listed separately under freemium.