[AS] Bump Maker

Cards

Image/video will render behind the text. Dim controls how “bump-black” it feels.

Upload a song/beat. Export will mux it into the MP4 (trimmed to the bump length).

Background file (image/video)

Fit Dim (0–100%) Mute background video in preview Loop background video

Resolution FPS Font family Font size (px) Y offset (px) Quick fade (0.18s) Light grain

First export will download ~32MB ffmpeg-core (WASM). After that it’s cached by the browser.

Ready.

Notes

This app records the canvas to WebM, then uses ffmpeg.wasm to convert + mux audio into MP4.
MP4 video codec is mpeg4 for broad compatibility without extra encoders.

Preview

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