Touch & Multi-Touch Tester
Test your touchscreen: see live touch coordinates, finger count and multi-touch support.
How to use this tool
- Open this page — it runs instantly in your browser, no signup or install.
- Allow any permission prompt if asked; everything stays on your device.
- Use the on-screen controls — results update live.
Test your touchscreen: see live touch coordinates, finger count and multi-touch support.
How it works
The Touch and Multi-Touch Tester detects touch events on your device's screen and displays live information for each active touch point: its X and Y coordinates on the page, the touch identifier, and the total number of simultaneous fingers the browser is currently tracking.
To use it, simply tap or drag one or more fingers on the touch canvas. Each touch point appears as a labelled dot that follows your finger. Lifting a finger removes its indicator, so you can verify that touch-end events are firing correctly.
Use this tool to confirm that your touchscreen hardware is working, to check whether a browser supports multi-touch, and to troubleshoot apps that behave differently for one-finger versus two-finger gestures.
The tester is particularly useful on tablets and hybrid laptops where touch support is present but intermittent due to driver issues.
Worked example
Verify two-finger touch works on a hybrid laptop
- Open the Touch Tester on the device's touchscreen.
- Place one finger on the canvas and note that one touch point appears.
- Add a second finger without lifting the first.
- Confirm two labelled touch points appear and the finger count reads 2.
- Lift both fingers and confirm both indicators disappear.
Confirmed that the device correctly tracks two simultaneous touch points and fires correct start and end events.
Common mistakes to avoid
- Opening the tester on a desktop without a touchscreen and expecting touch indicators — mouse clicks are not touch events.
- Using a browser in desktop-emulation mode which often suppresses touch events even on a real touchscreen device.
- Touching the canvas with wet or gloved fingers — capacitive screens require bare skin contact to register reliable touch events.
Key terms
- Touch point
- A single contact between a finger (or stylus) and the screen, tracked by the browser as an individual identifier.
- Multi-touch
- The ability of a screen to recognise and track more than one simultaneous touch point independently.
- Touch identifier
- A number assigned by the browser to each touch point at the moment it begins, used to track that specific contact until it ends.
Frequently asked questions
- How many simultaneous touch points does my screen support?
- Most modern smartphones support 5-10 simultaneous touch points. The value shown is from navigator.maxTouchPoints.
- What is touch force?
- Some devices (like 3D Touch iPhones) report the physical pressure of a touch as a value from 0 to 1.