/01 Making short text readable across a room
Type a few words and they scale up to fill the screen. It is the fastest way to show a door code, a table number, a wifi password or a name to someone several metres away, or to hold something up in a meeting or a lecture.
The text resizes to fit as you type, so a short phrase fills the display and a longer one steps down to stay on screen.
/02 Everyday uses
Handing a phone or laptop over with something legible on it beats reading a string of characters aloud, especially in a noisy room or across a language barrier. It is also handy as an impromptu sign, a countdown prompt, or a way to read something yourself when the original is set far too small.
Because it runs entirely in the browser, it works offline once loaded — useful in a venue with poor signal.
/03 Big text for passwords, codes and messages
Reading a WiFi password aloud across a room is how 0 becomes O and l becomes 1. Type or paste the text here and it is drawn as big as the display allows, in a monospaced font, so every character is clear from a distance.
Two details make it far more reliable than a large font in a notes app. Characters are colour-coded by type, so digits, letters and symbols look different at a glance and a zero can never be confused with a capital O. Position numbers can appear under each character, so someone typing along can say "character nine" instead of "the one after the dash". The size fits the screen width automatically, or you can set it by hand.
For the biggest possible result, press F11 on Windows or Control+Command+F on a Mac to make the browser itself full screen.