Tap to start
MUTEDtap, or say "Mute off"
Put me inside a pumpkin now.

Watercolor of a hand dropping a phone into a pumpkin, which then glows as a jack-o'-lantern.

Talking Jack-o'-Lantern

Put an old phone in a pumpkin. It hears trick-or-treaters and talks back in character.

  1. 1Open jack-o.io on an old phone.
  2. 2Power it up: enter a free key, get a Pumpkin Pass, or scan one from your other phone.
  3. 3Press Start and put it in the pumpkin, screen facing out.
Try other voices

Tap a voice to hear it and use it.

Set it up

Free option: use your own Google key

Free with your own Google (or OpenAI) key, in each character's own voice. A Pumpkin Pass adds every voice and color, and your key still does the talking.

A key is a long code, like a password, that lets the pumpkin use Google (free) or OpenAI (paid).

How do I get a key?
  1. Open Google's free key page and sign in with any Google account.
  2. Tap Create API key and copy the code.
  3. Paste it in the box above.

Your key stays on this phone and only goes to Google or OpenAI. You can save one of each and switch above.

No key? We handle everything.

🎃 Get a Pumpkin Pass, $4.99

About 400 replies, every voice and color, and ElevenLabs voices.

Point the camera at the code on the other phone.

More options: voices, language, lantern color
ElevenLabs voice 🔒

Use any voice from your ElevenLabs account, even your own clone. ElevenLabs bills you for the voice.

🔒 Included with the Pumpkin Pass. Get a pass to use it.

Where do I find these?
  1. Sign in at elevenlabs.io.
  2. Key: profile menu › API Keys › Create, with "Text to Speech" allowed.
  3. Voice ID: Voices › pick one › its menu › Copy voice ID.

This replaces the voices above. Your key stays on this phone.

Match the visitor replies in their language. If it switches by mistake, pick one.

The screen glows in this color as it talks.

Phone tips
  • Brightness all the way up, auto-brightness off.
  • Keep the screen on. iPhone: Settings › Display & Brightness › Auto-Lock › Never, Low Power Mode off. Android: Settings › Display › Screen timeout › longest, battery saver off.
  • Volume all the way up, and plug it in.
  • To mute: tap the screen or say "Mute on". Say "Mute off" to unmute.
Privacy
  • What visitors say goes to Google (or OpenAI) so the pumpkin can answer. With a free Google key, Google may use it to improve its products.
  • This site records nothing. Your key and settings stay on this phone.
  • With an ElevenLabs key, the pumpkin's words go to ElevenLabs to be spoken.
  • Stripe handles payments; card details never touch this site. To restore an earlier purchase, the site checks a scrambled fingerprint of your key, never the key.
  • We count anonymous usage (page views, options used) with a random number on your phone. Google's ad tag notes which ad visits led to a purchase. The video plays from YouTube (privacy-enhanced).
  • Put a small "talking pumpkin" sign nearby so people know it's listening.