Test your device.
Instantly.
Free browser-based tools to check your reflexes, vision, browser, age, and screen. Results in seconds — no downloads, no accounts.
How fast are your reflexes? Click the instant the screen changes color — get your average response time in milliseconds.
Take the test →Check for possible color vision differences with Ishihara-style plates. Informational only — see an eye doctor for diagnosis.
Check your vision →Enter your date of birth and get your exact age in years, months, days — updated live to the second.
Calculate my age →Instantly detect your browser name, version, OS, screen resolution, and device type. No permissions required.
Detect my browser →Touch your screen and see if phantom touches appear. Detects unintended touch events that may suggest a hardware issue.
Test my screen →Free online tools — instant, private, no sign-up
GhostTouchTest.com is a collection of free, browser-based diagnostic and performance tools. Whether you want to measure your reaction speed, check your color vision, calculate your exact age, identify your browser, or detect phantom screen touches — every tool runs instantly in your browser with zero installation required.
All tools are completely private. No data is collected, stored, or transmitted. Results are processed locally on your device and never sent to our servers. Our tools display technical information for informational purposes only.