About TestrHub

What TestrHub is

TestrHub is a collection of free online tests for your devices, your browser, your internet connection and everyday digital tasks. Every test opens in your browser and starts immediately: there is nothing to install and no account to create.

You can check a new or second-hand screen for dead pixels, make sure every key of a keyboard works, test speakers and headphones, and much more. Each test explains its results in plain language, so you know what a result means and what to do next.

Our principles

• Your data stays with you. Tests run on your device, using the features built into your browser. Files you open are never uploaded, and camera, microphone or location access is only used when you start a test that needs it and your browser asks for your permission.
• Clear, honest results. A browser cannot measure everything. When a result is an estimate, we say so, and the methodology explains the limits of each kind of measurement.
• Free for everyone. Advertising keeps TestrHub free. Ads never appear inside a test, never sit next to areas where you click or tap repeatedly, and never run while a measurement is in progress.
• Made for every device. Tests are designed to work on computers, tablets and phones, in all modern browsers. When a browser does not support a feature, the page tells you clearly.

Who uses TestrHub

• People checking a new or used device before or after buying it.
• Repair technicians and refurbishers who need a quick diagnosis.
• Gamers and power users who want to check their equipment.
• Developers and website owners who need a quick, private utility.

Get in touch

Found a bug, have an idea for a new test, or a question about a result? Contact us. We read every message.