LED Marquee Scrolling Text

What is this tool?

A scrolling LED marquee for your screen. Type a message, press Fullscreen, and hold your phone or laptop up like a light sign — concert fan support, airport pickups, event slogans, queue calls, or a backstage countdown. Everything renders locally in your browser; nothing is uploaded.

Controls

Direction left or right, speed from a slow crawl to a fast sweep, and a font size slider that scales the message from desk-sized to arena-sized. Six phosphor-style color presets — amber, green, cyan, white, red, purple — each with a matching glow drawn as layered text shadows on a deep black stage.

Playback

Multi-line input is joined into one continuous line, and the loop timing is computed from the measured text width and viewport, so the pace stays constant at any size. Space toggles pause (when no input field has focus), and the pause/play state is preserved across settings changes. Text, speed, size, direction, and color preferences are remembered locally per your data settings.