Test before you decide.

Sell · Buy · Repair · Or just know — Free, in your browser, nothing stored

01 · Microphone

✓ starting…

+6 0 −10 −20

02 · Battery

✓ —

—

checking

03 · Webcam

✓ starting…

REC

Allow camera

04 · Speaker & Screen

✓ click to play

Play

05 · Keyboard

Laptop Mini · 77 keys

0% Keys Working

01Input/02Power/03Optics/04Display/05Keyboard

How to use it

Microphone

Speak into your mic. The bars on screen should move with your voice.

Battery

Reads automatically. Watch the charge level and AC/DC status.

Webcam

Allow camera access. If you see yourself live, the camera works.

Speaker & Screen

Click play. You'll hear stereo tones and see colors cycle on screen.

Keyboard

Type each key. If it lights up on the layout below, it works. Includes function keys, modifiers, and the spacebar.

Document what works before listing a device. Buyers expect proof — give them a screenshot of clean tests.

Verify a used device before paying. Test what the seller claims works — mic, camera, every key, the speakers.

Identify which components actually need work, not just the symptoms. Triage before you open the case.

Just want to know if your mic, camera, keys, or speakers are doing what they should. Confirm in 30 seconds.

Tests run live in your browser. Nothing uploaded, nothing stored. Refresh the page anytime to start fresh.