WAVESPEED AI FLOCKING SIMULATOR Runs in your browser

100% FREE

Flocking SimulatorThousands of birds, one graceful flock.

Starlings at dusk, a school of fish, glowing fireflies: watch simple rules turn into mesmerising swirls.
Touch to scare or lead them, draw walls, and save a picture or a calming video clip.

Up to 3,000 boids5 relaxing scenesPNG and video

No sign-up No watermark Nothing to install

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Everything runs on your device.

THREE SIMPLE STEPS

How to use the flocking simulator

Pick a scene

Choose the dusk murmuration, the fish school, neon streaks, pastel kites or fireflies.

Play with the flock

Touch to scare the boids like a hawk, switch to the lure to lead them, or draw walls for them to flow around.

Tune and save

Adjust separation, alignment, cohesion, speed and wind, then save a PNG or make a video clip.

GOOD TO KNOW

Tips for mesmerising flocks

Small changes to three rules make very different flocks.

More alignment, tighter streams

Raise alignment for long ribbons that turn together; lower it for a buzzing swarm.

Let the hawk work

With the predator on, the murmuration splits, folds and joins again like real starlings.

Lead with the lure

Switch to the lure and move your finger slowly: the fish follow and circle around it.

Draw a reef

Draw walls across the middle and watch the school part and flow around them.

Calm screen

Choose the calm pace, turn on trails and go full screen for a relaxing ambient screen.

Same seed, same flight

The video is replayed from the seed, so a shared link gives the same clip on any device.

WaveSpeed AI

Turn your flock into something bigger

Make images, animations and short videos from a prompt with WaveSpeed AI.

Start creating Explore 1,000+ AI Models

1,000+ AI models
Image, video and 3D
Pay as you go

$1 in free credits for eligible new accounts. No card needed. Generators have separate account and credit requirements. The flocking simulator is free.

Flocking simulator FAQ

What are boids?

Boids are simulated birds that follow three simple rules: keep some distance from neighbours (separation), fly the way they fly (alignment) and stay close to the group (cohesion). Together these rules create realistic flocks, schools and swarms. The model was introduced by Craig Reynolds in 1987.

Is this flocking simulator free?

Yes. It is free with no sign-up and no watermark, and it runs right in your browser.

How many birds can it show?

Up to 3,000 boids at once. A fast spatial grid finds each boid’s neighbours, so even big murmurations stay smooth.

How do I interact with the flock?

With the hawk tool, touch or move the mouse to scare them away. With the lure, they follow your finger. With the pen, draw walls they avoid, and erase walls with the eraser.

What do the sliders do?

Separation sets personal space, alignment how strongly boids copy their neighbours’ heading, cohesion how strongly they gather, vision how far they look, speed how fast they fly and fear how strongly they flee. Wind pushes the whole flock.

Can I make a video?

Yes. Choose 9:16, 1:1 or 16:9, a length and frame rate, and the simulator replays your scene from its seed, with your walls and settings, into an MP4 (or WebM).

Can I use it as a screensaver?

Yes. Press full screen, choose the calm pace and the controls fade away. The screen stays awake while it plays.

Does it work on phones?

Yes. It is made for touch: tap to scare, drag to lead, pinch-free big buttons, and the settings slide up from the bottom.

All Free Tools

Ready to watch a murmuration?

Free, no sign-up, no watermark.

Open the simulator

Flocking SimulatorThousands of birds, one graceful flock.