An audio visualizer for any file you can open
This is the same engine for anything with sound: a podcast, a voice note, a mix, or a stem you just split. Drop the file and the picture follows the level, the tone and the hits.
If you already split a song in AudioDrop, choose Make a video on the result. The track stays in the tab. It is not uploaded, and it is not encoded until you export.
Bars, rings, a line and a field
Bars are a 64-band spectrum drawn as thin pills. Rings turn the waveform into circles. Line is a single oscilloscope trace. Field is a cloud of points that swells with the bass. All four are strictly black and white.
Switch the paper from black to white for a print-like frame. Intensity is the only other look control, so the picture stays calm.
Save an MP4 in the shape you need
16:9 suits a widescreen upload. 1:1 suits a feed post. 9:16 suits a full-screen short. The file is an MP4 with your audio inside, made entirely in the browser.
On browsers that cannot encode video directly, AudioDrop records the canvas instead. You still get a video file, and the audio still never leaves the device.