A real dot matrix
Your message is rasterised onto an LED grid — characters land on whole dots, unlit LEDs stay visible, and the text steps one dot at a time like a physical sign.
Tap the screen to show or hide these controls
F fullscreen · Space pause · Esc exit
Direction
Movement
Speed and depth live in Advanced settings. Keep it slow in a crowd.
For glass and windscreens
Advanced settings
Presets
One tap sets the colour, dot shape and panel height. Everything stays editable afterwards.
Type a message and your screen becomes a scrolling LED sign — a real dot matrix panel, one lit dot at a time. Works in any language, takes emoji, holds a clock or a countdown, and goes edge-to-edge fullscreen on a phone.
Good to know
Two-line signs
Press return in the message box. Each line gets its own band of LEDs and they scroll together, like a station board.
Any language, any emoji
Arabic, Hebrew, CJK, Thai and Hindi all render on the grid. Right-to-left text keeps its direction and emoji keep their colours.
Fullscreen on iPhone
Safari keeps its toolbars. For an edge-to-edge sign, use Share → Add to Home Screen, then open it from the icon.
How to use the LED Scroller
- Type your message Put your text in the message box. Press return for a second line and it becomes a two-line sign. Emoji work too.
- Pick a preset One tap sets the colour, dot shape and panel height. Everything stays editable afterwards.
- Set the colour and size Choose a colour, then drag Text height until the letters fill the panel.
- Set the speed and direction Slide the speed where you want it and pick left, right, up or down.
- Go fullscreen Press Fullscreen, or tap the panel. Turn the phone and use the 90° rotation for a tall sign you can hold up.
- Save or share it Save the sign in this browser, or press Share to copy a link that carries every setting to another device.
What is the LED Scroller?
The LED Scroller is a free LED banner maker that turns any screen into a scrolling LED sign. Type a message and it runs across the display on a real dot matrix panel — the same kind of marquee you see on a bus, a taxi roof or above a shop door.
It is free, it runs in your browser, and there is no app to install and no account to make. Change the colour, speed, size and dot shape, add a clock or a countdown, drop in emoji, and write in any language. Switch to big text and you get one plain, huge message instead of a scrolling one.
What people use it for
- Airport and station pickups. A name scrolling on a bright phone is far easier to spot than a sheet of paper.
- Concerts and crowds. Hold up a request or a birthday message so it carries across a dark room.
- Shops and market stalls. Prop a tablet in the window with today's offer running across it like an LED banner.
- Events and reception desks. Show what is on next, with a countdown to the start.
- Parties and weddings. Big text holds one name still and huge, which also photographs better.
- Streams and filming. A controllable panel makes a convincing prop and a useful practical light.
Tips for a sign people can actually read
Keep it short. Names, gate numbers and three-word messages work. A sentence has scrolled away before anyone finishes reading the start of it.
Use fewer LED rows for distance. Seven or eight rows give chunky letters you can read across a car park; more rows look finer up close and disappear further away.
Amber and red carry furthest in daylight, which is why road signs use them. Green, cyan and white look brightest indoors. Outdoors, turn the brightness up and the glow down — glow only softens the edges of the letters in sunlight.
Limits worth knowing
- Safari keeps its toolbar. iPhones do not allow a web page true fullscreen. For an edge-to-edge sign, use Share → Add to Home Screen and open it from the icon.
- A small screen holds less. A phone shows roughly one word at a time on a short panel. Turn it sideways, or rotate the sign 90° and hold the phone upright.
- Long messages cost speed. A very long message at a high speed can stutter on an older device. Shorten the text or lower the LED rows and it steadies up.
Common questions
Is the LED scroller free?
Yes, completely. There is no account, no trial and no watermark, and every feature on the page is available to everyone.
Does it work without an internet connection?
Once the page has loaded, the sign runs entirely on your device. Add it to your home screen first and it will open with no connection at all, which is worth doing before an event.
Can I use my own language and emoji?
Yes. Arabic, Hebrew, Chinese, Japanese, Korean, Thai, Hindi, Greek, Cyrillic and the rest all render on the grid. Right-to-left scripts keep their direction automatically, and emoji keep their own colours instead of taking the LED colour.
How do I make a two-line sign?
Press return in the message box. Each line gets its own band of LEDs and the two scroll together, like a departure board. Up to four lines are shown.
Why does my text look cramped or broken up?
Usually the panel is too short for the script. Chinese, Japanese, Hindi and Thai characters need height — raise the LED rows to 16 or more. Switching Letters to "True font" also helps, since it keeps the real letter shapes instead of forcing every stroke onto whole dots.
Can I save a sign and use it again?
Yes. Give it a name under Saved signs and it is stored in this browser. You can also press Share to copy a link that carries every setting, which is the easiest way to move a sign to another device.
Will it keep the screen from going to sleep?
Turn on "Keep screen on" and it will, in browsers that allow it — that includes Chrome on Android and recent versions of Safari. It switches on by itself when you go fullscreen.
Is my message sent anywhere?
No. Everything you type stays in your browser. There is no server to send it to, and saved signs live in your own browser storage.
Can I use it on a TV or a projector?
Yes. Open the page on a laptop, press Fullscreen and cast or plug it into the screen. A low row count and a high brightness look best on a large panel.