Train your eyes.
Sharpen your focus.
A small collection of visual exercises for tracking, reaction time, and peripheral awareness — built to run right in your browser, no download or sign-up required.
Training exercises
Pick one below — each opens full-screen with its own adjustable controls.
DVD Bounce — Number Trainer
Follow a single ball as it ricochets around the screen, classic-screensaver style, and read the number flashing inside it. Adjust speed, size, and color to your level.
Launch exercise →Random Pops — Eye Training
Colored targets pop in and out at random spots on screen. Add more balls and increase the speed to challenge your peripheral awareness and reaction time.
Launch exercise →Tools
Quick calculators to go along with the exercises.
TDEE Calculator
Estimate your Total Daily Energy Expenditure and see calorie targets for maintenance, weight loss, or weight gain. Supports both metric and US units.
Open calculator →BMI Calculator
Calculate your Body Mass Index from height and weight and see which category it falls into. Supports both metric and US units.
Open calculator →