Master three-cushion in your browser.
A free, professional carom trainer with real physics, a computational solver, and 9-language support. No login. No download. No paywall.
Real physics
Hertz contact model + Magnus spin + cloth friction. Solid 60fps on any 2018+ device.
Brute-force solver
No AI. The engine samples thousands of shots and scores valid 3-cushion solutions across four difficulty tiers.
Photo alignment
No machine learning. Snap a real-table photo, mark four corners + three balls — homography maps them to table coordinates.
A look at the table
Captured from the running simulator — no renders, no mockups. Click the simulator above to use any of these tools.
Watch three-cushion come alive in your browser
3ball
3ball3ball.app
- No install — runs in your browser
- A tournament three-cushion table
- Snap a photo → pin corners → drop the balls
- The solver ranks thousands of shots
- Dial in angle, power & english
- One rail, two, three — carom
- Free · 9 languages · 3ball.app
Frequently asked
Is 3ball.app really free?
Yes — free to use, no signup, no paywall. Supported by optional, consent-based ads. By Setviva.
Does 3ball.app use AI?
No machine learning. The solver brute-force samples thousands of shots through a real physics engine (Hertz contact, Magnus spin, cloth friction) and ranks valid 3-cushion solutions.
What browsers and devices work?
Any modern browser with WebGL2 (Chrome, Firefox, Safari, Edge from 2020 onward). 60fps stable on any 2018+ device including mid-range phones.
Can I install it on my phone?
Yes — 3ball.app is a Progressive Web App (PWA). Open it on your phone/tablet and tap "Add to Home Screen" in your browser menu.
Is photo-to-position alignment automated?
Manual but precise. You photograph the table, mark four corners + three balls; homography maps your photo to table coordinates. No machine learning.