Free online audio visualizer & waveform video maker

Yes. The tool is a free online audio visualizer, with no account, no watermark, no export limit and no upload. It runs entirely in your browser. There is an optional one-time Pro add-on (€39) that adds eight more waveform styles, a background, album art, titles, a progress bar and 4K export. Where the line between free and Pro sits can change, but the free tier always keeps what a good-quality waveform video needs, and always keeps unlimited exports: nothing expires, and it is never a trial, a quota or a watermarked preview.

You can load MP3, WAV, OGG, M4A/AAC and FLAC files — and video files too, including MP4 and the .mov an iPhone records, with the audio read straight from the track. Everything is decoded locally in your browser.

Nowhere. All decoding, analysis, rendering and MP4 encoding happen on your device. Your audio file is never uploaded or stored on a server.

Preview works in any modern browser. MP4 export uses the WebCodecs API, so it needs Chrome, Edge, Opera (or another up-to-date Chromium browser) or Safari 17+.

Yes. Load your MP3, choose a waveform style, and export a ready-to-use MP4 video.

The MP4 exports on a black background. Drop it on top of your footage in your video editor and set the blend mode to “Screen”: the black disappears and only the colored waveform shows over your video.

Yes, two ways. WebM with an alpha channel gives you a truly transparent video that needs no blend mode, and works in Chrome, Edge and other Chromium browsers. Transparent frames (PNG) exports a .zip of transparent images that imports as an image sequence into any editor, and it is the one transparent path that also works in Safari and Firefox, though it needs a browser from 2023 or later and carries no audio track.

Sixteen. Eight free: bars, mirror, radial, scope, area, dots, blob and circle. Eight more with the Pro add-on: ribbon, hexgrid, concentric, spiral, starburst, mesh, tunnel and bars3d. Each one takes the same color, reaction and resolution controls, and the preview updates live so you can click through them against your own track.

No, and no browser tool can: the video encoders a browser exposes are H.264, VP9 and VP8 — ProRes is not among them. If your editor wants a true alpha asset, export Transparent frames (PNG) and import the .zip as an image sequence; Premiere Pro, Final Cut and DaVinci Resolve all accept one and it carries the transparency exactly, it just has no audio track. WebM with an alpha channel is the faster route if you are in Chrome, Edge or Opera and your editor reads VP9 alpha.

One-click presets cover 1920×1080 and 2560×1440, 1080×1920 for Shorts and Stories, 1080×1080, 1080×1350, 2560×1080 ultrawide, and 3840×2160 and 2160×3840 in 4K, and you can type any custom width and height instead. Free exports cap at 2560 px on the longest edge, and 4K comes with the Pro add-on. Bitrate runs from 1 to 30 Mbps and starts at 10, or at 16 once a photographic background is in the frame, which compresses far less kindly than a flat one. What actually finishes is a property of your device rather than of a server — a long track at 4K asks a lot of a phone.

Nothing here restricts what you do with a video you export: no watermark, no licence on the output, no attribution asked. What you do need is the right to the audio you put in. The Terms put that on you, and a track you have no permission to use does not become usable because you added a waveform to it.

Only to open the page. Decoding, analysis, rendering and encoding all run on your machine, so you can disconnect and keep working, and your audio is never sent anywhere. Two things do still use the network: anonymous usage counts (formats, durations, error reasons — never a filename or any audio), and, for the rare file whose audio your browser will not decode on its own, a small reader module fetched on demand. There is no app to install and no offline mode to turn on, so you do need a connection to load it the first time.