Show HN: Online LED Scroller

artiomyak1 pts0 comments

LED Scroller — LED Banner Maker & Scrolling Text Sign

Skip to content

Tap the screen to show or hide these controls

− Speed<br>Pause<br>Speed +<br>Rotate<br>Exit

Pause<br>Reset

F fullscreen · Space pause · Esc exit

Scrolling text

Big text

Your message<br>😀<br>Emoji

Direction

← Left

Right →

↑ Up

↓ Down

Speed

Text height

Text size

Movement

Still

Pulse

Bob

Sway

Blink the message<br>Speed and depth live in Advanced settings. Keep it slow in a crowd.

Mirror text<br>For glass and windscreens

Colour

Advanced settings

Panel<br>Motion<br>Clock & timers<br>Colour & glow<br>Type<br>Blink & strobe<br>Screen<br>Saved signs

Letters

True font

Pixel grid

True font keeps the real letter shapes and lays the dots over them. Pixel grid forces every stroke onto whole LEDs — authentic, but small text can distort.

LED shape

● Dot

■ Pixel

◆ Diamond

⬢ Hex

▮ Tube

LED rows

More rows make finer letters. Drop to 7 or 8 for a classic chunky ticker.

Dot size

Unlit dots

Ink threshold

How much of a dot must be covered before it lights.

Hard pixels<br>Off lets edge LEDs dim

Snap letters to grid<br>Even character cells

Gap between repeats

Step dot by dot<br>How a real sign moves. Off slides smoothly between dots.

Pause on hover<br>Desktop only

Wrap long lines<br>Off keeps your own breaks

Show

Off

Clock

Stopwatch

Countdown

On the sign

Position

Before

After

Alone

24-hour clock

Show seconds

Countdown from

min<br>sec

Start<br>Pause<br>Reset

Two-colour fade<br>Blends across the message

Second colour

Background

Solid

Gradient

Image

Clear image

Glow

Edge lighting

Brightness

Rainbow cycle<br>Cycles emoji colours too

Cycle speed

Scan lines

Corner shading

Display type

Dot matrix

Plain text

Scrolling signs are a dot matrix panel by default and big text is plain type on a plain background. Change it here and the choice sticks for that mode.

Font

Auto — matches your language<br>Doto — dot matrix<br>Chakra Petch — techy<br>Orbitron — digital<br>Bebas Neue — tall caps<br>Archivo — clean sans<br>Impact — heavy<br>Courier — typewriter<br>Georgia — serif

Missing characters fall back to your device font.

Weight

Letter spacing

Italic

All caps

Blink the message

Blink speed

Blink depth

Flash the background<br>Whole screen alternates

Fast flashing can trigger seizures in people with photosensitive epilepsy. Keep the blink speed low in crowds.

Rotate

90°

180°

270°

Fine angle

Hold the phone upright at 90° for a tall sign.

Keep screen on<br>Stops the display sleeping

Show close button<br>In fullscreen

Lock to landscape<br>Android and desktop

Name this sign

Save

Presets

One tap sets the colour, dot shape and panel height. Everything stays editable afterwards.

Concerts · Pickups · Shop windows · Events<br>LED Scroller

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

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.

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...

text sign message speed colour panel

Related Articles