Everything happens on this device — nothing is uploaded anywhere. Because of that, this only works for videos up to 5 minutes: longer files risk stalling or crashing the tab. For anything longer, use the auto_shorts.py command-line version instead, which has no length limit.

Scans the whole track for natural loop points inside your chosen length range and gives you several candidates to pick from — choose whichever one actually sounds seamless.

Encoding runs on your CPU with no hardware acceleration in-browser — 720p renders noticeably faster if you're just previewing options.