Audio Visualizer / Echonos tools
Audio Visualizer — Free Online, Reacts to Your Song
An audio visualizer turns sound into motion: the loudness and frequencies of your track drive bars, pulses or particles in real time. Drop an MP3 or WAV below, pick a style and a frame (16:9, 9:16 or 1:1), and record a short clip. It runs in your browser with no signup and your file is not uploaded.
MP3 & audio to video converter
GOLDEN HOUR
YOUR ARTIST NAME
Your song. Your look. Press play to bring them together.
Want cinematic AI scenes instead of static cover art?
Upload your MP3 or WAV to Echonos Engine to generate beat-synced 9:16, 16:9, or 1:1 music video scenes with Proteon & Orpheon.
AI generation is available in the Echonos app on paid plans.
From idea to release
How it works
A few simple steps. Your creative direction.
- 01
Add your audio
Drop an MP3, WAV, M4A, AAC, OGG or FLAC file. The browser decodes it locally with the Web Audio API.
- 02
Pick a visual style
Neon frequency bars, radial beat pulse, cyberpunk waveform grid, lofi particle drift, or your cover art with a beat pulse.
- 03
Choose the frame
16:9 for YouTube, 9:16 for Shorts, Reels and TikTok, or 1:1 for feed posts.
- 04
Record a clip
Record a 10 second clip in the browser, or bring the full song into Echonos for AI-generated scenes cut to the beat.
Inside the toolkit
What you get
Real-time frequency analysis
An analyser node reads the spectrum every frame, so the visuals follow kicks, snares and vocals as they happen.
Five visual styles
Bars, radial pulse, waveform grid, particles and cover-art pulse, with colour palettes and a sensitivity control.
Three aspect ratios
Widescreen, vertical and square layouts from the same audio.
Clip recording
A 10 second recording saved as MP4 where the browser supports it, WebM otherwise.
Visualizer specs
- Accepted audio
- MP3, M4A, WAV, AAC, OGG, FLAC
- Styles
- Frequency bars, radial pulse, waveform grid, particles, cover art pulse
- Aspect ratios
- 16:9, 9:16, 1:1
- Browser export
- 10s clip (MP4 where supported, WebM fallback)
- Privacy
- Runs locally in your browser, no upload
- Cost
- Free browser tool, no signup
Good to know
Audio visualizers react to volume and frequency. If you want scenes that follow the structure of the song (verse, chorus, drop), that is what Echonos Engine does with your full track.
Need the whole song as a video with static cover art? Use the WAV to MP4 converter.
A little clarity
Frequently asked questions
What is an audio visualizer?
A tool that reads an audio signal and turns its loudness and frequency content into moving graphics, like bars that jump with the bass or a circle that pulses on the kick. Artists use them to give a song a video for YouTube, Shorts or a Spotify Canvas without filming anything.
Is this audio visualizer free?
Yes. The browser visualizer is free to use and needs no account. Your audio is processed on your device.
Can I download the visualizer video?
You can record a 10 second clip in the browser. It saves as MP4 in browsers that support MP4 recording and as WebM in others.
What is the difference between an audio visualizer and an AI music video?
A visualizer draws shapes from the audio signal. An AI music video generates scenes, characters and camera moves planned around the song. Echonos does the second; this page gives you the first for free.
In-depth release & production guides
Keep your creativity moving
Part of the Echonos artist toolkit · Explore all tools