Interactive browser canvas
Start the simulator, choose a flame-test color preset, then click or tap the sky to launch virtual fireworks.
Online firework simulator
Pyro Lab lets you launch virtual fireworks directly in the browser. Choose a firework color, choose how the burst behaves, then click or tap the sky. No account, no download, no setup.
Color presets such as sodium yellow, copper blue-green, and strontium red are teaching labels from flame-test chemistry. They help you talk about why fireworks look different, without turning the page into a real pyrotechnics guide.
Colors and explosion behavior are now separate. You can keep the same color and change only the burst style, so the firework can fall like gold rain, glow longer, sparkle harder, or explode larger.
Pick red, yellow, green, blue-green, purple, white, gold, silver, or other firework color presets.
Switch the explosion style: golden rain, finale bloom, long trails, strobe sparkle, bold lines, afterglow, or fast comet.
Tap the sky to launch fireworks, use Auto for a quick show, or hit Finale for a bigger burst.
These settings change the shape and feel of the explosion, not just the color. They are built on fireworks-js options such as particles, gravity, friction, decay, flickering, line width, opacity, and trace speed.
