Paint with responsive ribbons of light
Fluid Mouse Trail turns mouse and touch movement into layered ribbons of luminous color. Slow curves can leave wide, relaxed forms, while quick turns pull the light into brighter folds and overlapping streams. You can begin drawing immediately, then use the controls to decide whether the result should feel soft and misty, sharp and electric, or somewhere between the two.
Trail Size moves from fine filaments at the lower end to broader ribbons at higher settings, letting you draw precise lines or build a fuller stream. Viscosity adjusts how strongly nearby strands seem to travel together, while Persistence controls how long older motion remains visible. Flow Speed changes the pace of the animation, Bloom affects the surrounding glow, and Fluid Detail balances finer curls against lighter rendering. These settings shape an artistic, fluid-inspired effect rather than a scientific fluid simulation, so the useful measure is simply how the motion looks and feels under your hand.
Combine color with five dark backgrounds
Color palettes and visual presets make the same gesture produce a very different composition. Cool cyan and violet can create an aurora-like trail, warmer tones feel more energetic, and mixed colors reveal where several passes cross. Randomize is useful when you want an unexpected starting point, while Reset returns the canvas to a clean state without making you reload the page.
Five locally stored dark backgrounds provide different moods behind the trail, from restrained gradients to deeper space-inspired patterns. Each image is composed to remain balanced when the canvas changes shape, so it can fill a wide desktop stage or a narrower mobile view without depending on one fragile focal point. The background, palette, glow, and trail remain part of one finished scene.
Record the motion or save an image
A still image captures one instant, but a recording preserves the way the light gathers, bends, and fades as you move. The video control records the visual canvas rather than the surrounding page, keeping menus and article content out of the result. The camera-marked Image control saves the composed artwork and selected background as a JPG, which is useful for wallpapers, mood boards, abstract references, or any trail that deserves to be kept.
The controls can be minimized with the arrow when you want more room for the artwork and expanded again whenever you need to make an adjustment. Mouse, pen, and touch input all work with the same basic idea: move through the canvas, vary your speed, and let several passes build a richer form. Fullscreen is especially useful for broad gestures and uninterrupted recording.
For a cleaner composition, begin with one fine curve and leave a little dark space around it before adding faster passes. If the scene becomes too dense, lower Trail Size, Bloom, or Fluid Detail instead of clearing everything immediately. Because the trail continues to evolve after each gesture, start recording before the main movement or wait for the most balanced frame before choosing Image to save a JPG.