What is Matrix Rain?
Matrix Rain recreates the iconic falling green characters from the Matrix movie franchise. Watch streams of glowing characters cascade down your screen in a mesmerizing digital rain effect that brings the cyberpunk aesthetic directly to your browser.
This interactive simulation lets you customize every aspect of the effect — from colors and speed to character sets and directions. Whether you want a classic green Katakana rain or a rainbow binary cascade, the choice is yours.
Screensaver
Relaxation
Presentations
Fun
How to Use
The Matrix Rain starts automatically when you open the app. Hover over the screen to reveal the settings button in the top-right corner.
Customize Your Rain
Color
Choose from 7 options including a Rainbow mode that cycles through all colors
Speed
Drag the slider from Slow to Fast to control how quickly characters fall
Density
Adjust from Sparse to Dense to control how many character streams appear
Font Size
Scale characters from Small to Large
Characters
Pick Katakana, Latin, Numbers, Binary, Mix, or type your own Custom characters
Direction
Change the rain direction: Down, Up, Left, or Diagonal
Special Features
Interactive Mode
Toggle this on, then move your mouse to push characters away from the cursor
Custom Text
Type a message to display it as a glowing overlay in the center of the screen
Reset
Click the reset button to restore all settings to their defaults
Features
Visual Customization
7 Color Themes
- Classic Green
- Blue Cyber
- Red Alert
- Purple Neon
- Gold
- White
- Rainbow
Rainbow Mode
Adjustable Speed
Density Control
Scalable Font
Character Sets
Katakana
Japanese characters for the authentic Matrix look. This is the character set used in the original Matrix films, giving you that iconic cyberpunk aesthetic.
Latin
Standard letters, numbers, and symbols. Perfect for a more familiar Western character set while maintaining the digital rain effect.
Numbers
Digits 0-9 only. Creates a clean, mathematical appearance ideal for data-themed visualizations.
Binary
Pure 0s and 1s for a digital feel. The most minimalist option, representing raw computer code.
Mix
A blend of Katakana, Latin, and Numbers. Combines multiple character sets for maximum variety and visual interest.
Custom
Type your own characters to use in the rain. Create personalized effects with any characters you choose — letters, symbols, emojis, or special characters.
Interactive Elements
Mouse Interaction
Characters dodge your cursor when Interactive mode is enabled
- Real-time cursor tracking
- Dynamic character avoidance
- Smooth animation effects
Custom Text Overlay
Display a glowing message that floats over the rain
- Centered text display
- Glowing effect
- Customizable message
4 Directions
Rain can fall down, rise up, scroll left, or cascade diagonally
- Vertical (Down/Up)
- Horizontal (Left)
- Diagonal cascade
Performance
Without Optimization
- Runs continuously
- Drains battery in background
- Fixed to one screen size
- Settings reset on reload
Optimized Performance
- Auto-pauses when tab is hidden
- Saves CPU and battery
- Responsive to any screen size
- Persistent settings saved locally
Frequently Asked Questions
Can I use this as a screensaver?
Yes! Open the app, go fullscreen, and leave it running. The animation automatically pauses when you switch to another tab, so it won't drain resources in the background.
What are the characters in the classic Matrix rain?
The original Matrix films used Japanese Katakana characters along with Latin letters and numbers. This app defaults to Katakana for an authentic look, but you can switch to any character set you prefer.
The Matrix code was designed to look like Japanese characters because it gave the digital rain a more exotic and mysterious appearance that Western audiences would find visually striking.
— Simon Whiteley, Matrix Visual Effects Designer
How do I use my own characters?
Open Settings, go to Characters, and select Custom. An input field will appear where you can type any characters you want. The rain will use only those characters.
Open Settings
Click the gear icon
Select Custom
Choose from Characters menu
Type Characters
Enter your custom text
What does Interactive mode do?
When enabled, characters near your mouse cursor will disappear, creating a circular void that follows your movement. Move your mouse around to create dynamic patterns in the rain.
This feature adds a playful, interactive element to the visualization, making it feel responsive to your presence. It's perfect for demonstrations or just having fun with the effect.
Will this slow down my computer?
The app is optimized for performance. It uses HTML5 Canvas for efficient rendering and automatically pauses when the browser tab is not active. On most modern devices, it runs smoothly even at high density settings.
Are my settings saved?
Yes, all your customizations are saved in your browser and automatically restored when you return.
Saved Settings Include:
- Color theme selection
- Speed and density levels
- Font size preference
- Character set choice
- Direction setting
- Custom text overlay
- Interactive mode state
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