John Valentine
About Msg

Msg is a minimal web app that lets you silently flash short messages to people who can see your screen.

Try Msg in your browser

It's free, and doesn't store your data.

We developed Msg to allow parents to silently communicate without disturbing a child, in situations where quiet is needed. It has other uses, like communicating across a room without disturbing others, or voting situations like 'planning poker'.


Version 1.01, created by John Valentine. Donate to support software like this.

  • Write anything supported by your browser, including emoji.
  • Scale your text to suit the message.
  • Full-screen view.
  • Quick clear, and subsequent undo. v1.01
  • Made for mobile.

Known issues

  • Some browsers can omit a line of text or emoji if is seems not to fit vertically in the text area. We believe this happens too readily, so are looking for a workaround.
  • We can't account for who else might be looking, other than your intended target. Please use Msg responsibly.