Looking for a ball bouncing simulator you can use right in your browser? ViralBalls is a free, no-download physics sandbox that lets you watch (and record) balls bouncing inside concentric circles — with full control over gravity, elasticity, colours, and effects.
What Is a Ball Bouncing Simulator?
A ball bouncing simulator is a physics sandbox that models how a ball moves under gravity, bounces off surfaces, and interacts with obstacles. At its simplest it's a circle falling and rebounding. At its most complex it's a chaotic dance of colour, sound, and destruction — which is exactly where ViralBalls lives.
Unlike downloadable physics engines aimed at game developers, ViralBalls is designed for anyone who wants to watch, customise, and share satisfying ball physics — whether you're a content creator, a teacher, or someone who just finds it relaxing.
Key Features
Realistic (and Tuneable) Physics
Adjust gravity from feather-light to crushing, tweak bounciness from a dead thud to a super-ball, and enable increasing bounciness so the ball accelerates over time until it smashes through walls. Every parameter updates in real time — no restart needed.
10 Unique Game Modes
ViralBalls goes far beyond a simple bouncing ball:
- Classic — the original ball-escapes-the-circles experience. Walls have gaps; the ball must find them.
- Accumulation — new balls spawn on each wall hit, filling the arena with dozens of bouncing objects.
- Multiply — the ball splits into multiple copies on impact, creating fractal-like chaos.
- Lines — horizontal line walls replace circles for a different collision geometry.
- Shatter — walls are made of individual brick-like segments. Each segment has HP and shatters independently.
- Color Match — the ball cycles through colours and can only break segments that match its current colour. A puzzle inside a physics sim.
- Portal — teleport pads warp the ball across the arena.
Plus special overlays like Target (hit the highlighted segment) and Paint (colour the walls as you bounce).
Stunning Visual Effects
This isn't a grey-box physics demo. ViralBalls features:
- Rainbow gradient and pulsing wall colours
- Glowing balls with colour trails
- Confetti, shatter, and shockwave wall-break effects
- Reactive backgrounds that pulse with the simulation
- Custom ball images (upload any PNG/JPEG)
- Text overlays for captions and watermarks
Built-In Video Export
The killer feature for creators: record your simulation as an MP4 video directly from the browser. Choose from square (500×500), HD (1280×720), Full HD (1920×1080), or vertical TikTok format (1080×1920). No screen recorder, no post-processing — just click Record and download.
Save & Load Presets
Found the perfect combination of settings? Save it as a preset. Load it back any time with one click. Great for building a consistent content style.
Who Is It For?
- Content creators — produce viral TikTok / Reels / Shorts clips in minutes. Ball physics videos regularly hit millions of views.
- Teachers & students — visualise concepts like gravity, elasticity, kinetic energy, and momentum in an interactive, engaging way.
- Designers & artists — use the simulation as a generative art tool. The colour, trail, and glow systems produce genuinely beautiful visuals.
- Anyone who needs to relax — there's something deeply satisfying about watching a ball bounce. It's a free, browser-based stress reliever.
How to Get Started
- Go to viralballs.com
- Click Start Simulator
- Adjust settings in the right-hand panel (gravity, bounce, walls, colours)
- Choose a mode from the Modes Overview section
- Hit Record if you want to export a video
Everything runs client-side in your browser. Nothing is uploaded. Nothing is tracked. It's completely free with no sign-up required.
Why ViralBalls Over Other Simulators?
Most ball physics simulators online are either (a) bare-bones tech demos with no customisation, or (b) desktop software that requires installation. ViralBalls sits in a unique sweet spot:
- ✅ Browser-based — works on any device with a modern browser
- ✅ Full visual customisation — colours, effects, images, text
- ✅ Multiple game modes — not just one simulation
- ✅ Video export — MP4 recording built in
- ✅ Presets — save and reload your favourite settings
- ✅ Free — no paywall, no watermark, no account
Whether you're creating content, teaching physics, or just watching balls bounce for fun, ViralBalls is the most full-featured free option available.