Handheld Danmaku — Turn Your Phone Into a Cheer Board

Scroll custom text across your screen at live events, concerts, and cheering sessions. No app install needed.

Try it Free →

Features

📣

Multi-Track Scrolling

Enter multiple lines of text — each scrolls on its own track simultaneously across the screen.

🎨

Fully Customizable

Choose text color, background color, font size, and scroll speed to match your vibe.

📱

Fullscreen Mode

Tap "Start Playing" to go fullscreen. Double-tap anywhere to exit.

🔆

Screen Wake Lock

Keeps your screen on during playback so it never goes dark at the crucial moment.

↔️

Landscape & Portrait Ready

Automatically adapts when you rotate your device. Tracks recalculate seamlessly.

🔒

Privacy First

Everything runs locally in your browser. No data is sent to any server.

How to Use

1

Enter Your Text

Type one or more messages in the text area. Each line becomes its own scrolling track.

2

Customize Appearance

Set the scroll speed, font size, text color, and background color to your liking.

3

Go Fullscreen & Cheer

Tap "Start Playing" — your screen goes fullscreen and the messages start scrolling. Double-tap to exit.

Frequently Asked Questions

What is Handheld Danmaku?
Handheld Danmaku is a browser-based tool that turns your phone or tablet into a scrolling cheer board, perfect for concerts, sports events, and live performances.
Is it free?
Yes, completely free. No account or app installation required.
How do I exit fullscreen?
Simply double-tap anywhere on the screen to exit fullscreen and return to the editor.
Can I show multiple messages at once?
Yes! Enter one message per line. Each line gets its own scrolling track, and all tracks scroll simultaneously.
Will my screen stay on during playback?
Yes. The tool uses the Screen Wake Lock API to prevent the display from going to sleep. On iOS Safari (which does not support Wake Lock), the screen may still dim, but playback continues normally.

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