Is UnitCert really free?

Yes. UnitCert is 100% free for individual device testing. You can run unlimited hardware tests and generate up to 25 certified reports per month at no cost. Pro and Business plans are available for teams needing batch testing, CSV export, and custom templates.

Do I need to download anything?

No. UnitCert runs entirely in your browser. There's nothing to download, install, or configure. Just open the website and start testing.

What devices does UnitCert support?

UnitCert supports Chromebooks, Windows laptops, and MacBooks. Each device type has a customized test suite that covers keyboard, trackpad, screen, camera, microphone, speakers, touch screen, and network diagnostics.

How does report verification work?

Every UnitCert report includes a unique verification ID (starting with UC-). Anyone can enter this code or paste the report link on our verification page to confirm the diagnostic results are authentic and unaltered.

Can I test multiple devices at once?

Yes. UnitCert Pro includes batch testing mode where you can create a batch, share a single test link with your team, and track progress across all devices from a central dashboard. Export results as CSV for your records.

How to Test a Used Laptop Before Buying

This complete guide covers how to test a used Windows laptop or MacBook before buying, using UnitCert's free browser-based hardware diagnostic tool. Whether you are considering a Dell, HP, Lenovo, Acer, ASUS, MacBook Air, or MacBook Pro, UnitCert provides standardized testing for all critical hardware components.

Hardware Tests Covered

Keyboard — Verifies every key registers correctly; essential for spotting damaged or unresponsive keys
Trackpad — Checks pointer accuracy and multi-touch gesture support
Screen — Full-screen color patterns reveal dead pixels, backlight bleed, and color issues
Camera — Verifies webcam image quality
Microphone & Speakers — Checks audio input and output quality
Network — Measures Wi-Fi connectivity and speed

How to Get Started

Open the UnitCert laptop test in any browser on the laptop you want to test. Select Laptop as your device type and follow the on-screen instructions for each test.

Your Certified Report

After completing all tests, UnitCert generates a certified report with an overall grade and a unique verification ID. Share this report with the seller or use it for your own documentation. The verification ID allows anyone to independently confirm the report is authentic.

Testing takes approximately 60 seconds and is completely free with no account required. Also see our Chromebook testing guide and MacBook testing guide.