KETCHUP

sound-reactive visuals for the party · listens through your mic

How it works

  1. Make a show: upload pictures and videos, crop and caption them in the editor.
  2. Hit play on the laptop hooked up to the TV or projector. Allow the mic, or use a steady tempo.
  3. Make the show public to get a link anyone can put on another screen. Your changes reach it in a few seconds.

Keys

1–48-bit cycle · ghost glitch · kaleidoscope · jump scare
Spacenext picture
P / ⇧Pnext / previous palette
- =mic sensitivity
[ ]8-bit pixel size
Ttap tempo (steady beat, ignores the mic)
Aauto cycle on / off
C · H · F · Esettings · hide help · full screen · editor
tap / long-pressnext picture / settings (phones and tablets)

Tips

  • Point the mic at a speaker. If the beat light in settings doesn't blink with the kick drum, raise the sensitivity — or switch the beat clock to a steady tempo.
  • On a Mac, set Control Center → Mic Mode to Standard: Voice Isolation filters the music out.
  • Drag extra photos or videos onto the visuals to add them for the moment.