An audio waveform generator that turns an audio file into a waveform image (a PNG of the audio's waveform). Drag and drop or choose an MP3, WAV, OGG, M4A or other file (whatever your browser can decode), and it draws the waveform onto a canvas you can download as a PNG. Use it for SoundCloud-style artwork, video thumbnails, podcast assets or a clean waveform graphic for a slide. Choose from three styles — bars (a row of vertical bars), line (the outline) or filled — set the waveform color and background color freely, and turn on a transparent background to export a transparent PNG you can layer over other images. You can toggle a mirrored (symmetric) view, set the image width and height in pixels, and adjust the bar width and gap, so you can make anything from a thin SoundCloud-style bar waveform to a thick filled one. The amplitude is normalized automatically (scaled to the loudest peak), so even quiet files produce a clear, well-sized waveform. Decoding and drawing happen entirely in your browser — the file is never uploaded, stored or sent to a server. No install, no sign-up, free to use.