Features

• 16 explosion types – Sphere, Cascade, Star, Ring, Double Ring, Chrysanthemum, Palm, Comet, Spiral, Willow, Crossette, Dahlia, Mine, Fish, Strobe, Trails + Custom (draw your own shape!)
• Full timing control – Rise frames, burst duration, fade length, perfect loop option
• Rich color modes – Solid, Bicolor, Shift, Random (with built-in palettes)
• Special FX – Rebound (secondary flash), Glitter (random sparks), Breaking (child particles), Multi-burst (second explosion), Spin, Asymmetry (stretch shapes)
• Randomize button – Instant inspiration with one click
• Pixel art mode – Crisp 1‑pixel sparks or soft blended glow
• Sync mode – All rockets explode simultaneously or staggered
• Dark background support – Automatic black BG layer
  • TIp: If you want to place the rocket right in the center of the canvas, set “Scatter” to 0 and set “Rise %” to 50 (uncheck “Random Rise”)
    
    

Examples

How to use

1. Open or create a sprite in Aseprite v1.3+
2. Run the script (File > Scripts > Run Script...)
3. Tweak parameters across 5 tabs
4. Click Allons-y! – new layers with animated fireworks appear
5. For Custom type: Click "Custom Layer", draw your shape on frame 1, then generate with Type = Custom

Ideal for

• Game intros / title screens
• Festive pixel art scenes
• Explosion effects for games
• Looping animated wallpapers

💬 Feedback & Support

I love seeing how you use Heos Fireworks in your projects. If you have questions, ideas, or just want to share what you’ve made, feel free to leave a comment or reach out directly. It’s always great to see your work in action.

If you found this tool useful, taking a moment to leave a rating really helps. Thanks for the support ❤️