Audio visualizer — spectrum & waveform video from any MP3
- Free 720p
- No sign-up
- Audio never uploaded
- MP4 · 16:9 & 9:16
In short: Load any audio file — a song, a beat, a voice memo, a podcast clip — and get an animated spectrum or waveform video you can post anywhere. Five styles, your colours, your background image, optional captions. The file is analysed and encoded in your browser, so nothing is uploaded. Free MP4 exports are 720p with no watermark (captions add a small one); HD passes start at $4.90 once.
Start from a look
Real frames from this editor. Click one, then drop in your song — every setting stays editable.
How it works
- Upload audio (MP3, WAV, M4A, OGG, FLAC).
- Choose bars, mirror, circle, wave or glow.
- Add a background image or pick a gradient.
- Export MP4 — full length or a 15/30/60 s clip.
Spectrum vs waveform
A spectrum shows how loud each frequency is right now — bass on the left, treble on the right — and is what most people mean by an audio visualizer. A waveform (our Wave style) draws the raw signal like an oscilloscope, which suits speech and quiet music. Both are computed from the actual audio, frame by frame.
What you get for free (and what a pass adds)
| Free | Pass ($4.90 / 24 h, $12.90 / 30 days, $29 lifetime) | |
|---|---|---|
| Sign-up | Not needed | Not needed — pay once, the pass is stored in your browser |
| Song length | Any length | Any length |
| Resolution | 720p, 30 fps | 1080p (24 h) or 4K (30-day / lifetime), up to 60 fps |
| Watermark | None on visualizer videos; small corner mark on lyric videos | None |
| Formats | 16:9, 9:16, 1:1, 4:5 | Same |
| Lyric sync | Tap-to-sync, AI auto-sync (beta), LRC import/export | Same |
| Where it renders | On your device (WebCodecs) — the song is never uploaded | Same |
| Output | MP4 (H.264 + AAC) | Same |
See pricing for details. Passes are one-time payments, not subscriptions.
FAQ
Can I visualize a podcast or voice note?
Yes — use the Wave style and type the key quote as a lyric line to get an audiogram-style clip.
Do I need to install anything?
No. It runs in a normal browser tab.
Is the audio uploaded?
No. Your file never leaves your device.
Related tools
Music visualizer
Turn a song into a music visualizer video: spectrum bars, circle, wave or glow that react to your audio, over your cover art. Free 720p MP4, renders in your browser.
Audiogram generator
Make a podcast audiogram: waveform animation, cover art, show title and a caption quote, exported as MP4 in square, vertical or wide.
MP3 to MP4 with image
Convert MP3 to MP4 with a picture and a moving visualizer, so you can upload audio to YouTube, TikTok or Instagram. Free, no upload, no sign-up.