YellerPhone

Tap to turn your phone into a live voice amplifier
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100% Local Processing No Sign-up • No Uploads Add to Home Screen Ready

Grant microphone permission when asked. For best results, point your phone away from the mic and towards your audience to reduce feedback.

1.5×
Tips to avoid feedback/whistling:
  • Keep the phone’s speaker pointed away from the microphone.
  • Lower gain a bit or choose “Stable” mode if you hear ringing.
  • Headphones eliminate feedback and let you test quietly.

Install to Home Screen

You can add YellerPhone to your home screen for a full-screen app feel. On iPhone (Safari): share icon → Add to Home Screen. On Android (Chrome): menu → Add to Home screen. Everything runs locally in your browser; your audio never leaves your device.