Everything a loop needs, nothing it doesn’t
Bounceloop is a focused tool: simulate, score, sound, export. Here is what is inside.
A simulation you can trust
Bounceloop runs its own physics at a fixed 120 steps per second. Nothing depends on how fast your computer is.
- Continuous collision detection, so fast balls never slip through walls.
- A seeded random generator: the same mode, settings and seed always replay the same loop.
- Seek anywhere on the timeline; the engine replays from the start to land on the exact frame.
- 20 modes, each with its own settings panel generated from its schema.
Every bounce is a note
Turn a loop into a tune. The ball plays the next note of your melody each time it hits something.
- A piano roll for drawing notes, with import and export of standard MIDI files.
- Pick which MIDI track drives the loop when a file has several.
- Nine instruments you can swap while the loop keeps playing.
- Upload an mp3 or wav as a backing track, with offset and volume.
Let Auto Find do the searching
Not every seed makes a great loop. Describe what you want and let background workers look.
- Goals such as a finale near the end of your track, a target length or a number of hits.
- Hundreds of seeds are tried in parallel without freezing the page.
- The best runs appear as live thumbnails you can open in the studio.
Available on Creator Pro.
Export without screen recording
Video is rendered one frame at a time from the simulation, so a slow computer makes a slower export, not a worse one.
- H.264 and AAC in an MP4, at 720p, 1080p or 4K and 30 or 60 fps.
- 9:16, 1:1 and 16:9 frames, with a title overlay for the first seconds.
- Audio is mixed separately and lined up to the first visible frame.
- WebM fallback for browsers without WebCodecs.

