DeviceDoctor

🩺

DeviceDoctor

DeviceDoctor
Troubleshooter

Test keyboard, mouse, webcam, mic, speakers, battery, internet and more — right in your browser.

Diagnostic Progress0 / 0

⌨️

Keyboard

🖱️

Mouse

📷

Webcam

🎙️

Microphone

🔊

Speakers

🌐

Internet

🔋

Battery

💾

Storage

⚡

Performance

📋

Report

💻

System Info

Browser-visible device details — nothing is stored or sent.

⌨️

Keyboard Test

Press any key to verify it registers correctly.

Key Detection

Press any key on your keyboard…

Key log will appear here.

Visual Key Map

Key Checklist

Press: Letters, Numbers, Enter, Shift, Ctrl, Alt, Space, Tab

Troubleshooting

1

Check USB cable / Bluetooth connection.

2

Try a different USB port.

3

Restart your computer.

4

Update drivers.

🖱️

Mouse Test

Move, click, scroll and double-click in the zone below.

Test Zone

Move your mouse · Click · Scroll · Right-click

—

X

—

Y

0

Clicks

0

Scroll

↕ Movement

👆 Left Click

👆 Right Click

👆👆 Double

⬆ Scroll

Troubleshooting

1

Wireless mouse: replace batteries, check USB receiver.

2

Try a different USB port.

3

Clean the optical sensor.

📷

Webcam Test

Verify your camera is working with a live preview.

Camera Preview

Loading cameras…

Click Start Camera to request permission.

Troubleshooting

1

Check physical privacy shutter.

2

Grant camera permission in browser.

3

Close other apps using camera.

🎙️

Microphone Test

Speak to see live volume and waveform.

Volume Meter

0%

Loading microphones…

Click Start Mic to request permission.

Record & Playback (10s)

Record 10 seconds then play back to verify quality.

Ready to record.

Troubleshooting

1

Check mute button.

2

Select correct input device.

3

Grant mic permission in browser.

🔊

Speaker / Headset Test

Play audio tones to verify your speakers are working.

Tone Tests

Press a tone button to play audio.

Record & Playback Test

Record via microphone and play back to verify both mic and speakers work together.

Ready.

Did you hear audio from your speakers/headset?

Troubleshooting

1

Check OS volume and output device.

2

Check cable connections.

3

Restart audio services.

🌐

Internet Test

Check connectivity, latency and estimated download speed.

Connection Status

● Checking…

Latency

—

ms

Download

—

Mbps est.

Quality

—

 

Type

—

 

Troubleshooting

1

Restart router.

2

Move closer to Wi‑Fi.

3

Disable VPN.

🔋

Battery Test

Check battery level, charging status and estimated time remaining.

Battery Status

ℹClick the button below to read battery information.

Troubleshooting

1

Close power‑hungry apps.

2

Reduce brightness.

3

Enable Battery Saver.

💾

External Storage Test

Plug in a USB drive or SD card and read a file to verify it works.

File Read Test

📁

Click to choose a file from your USB drive / SD card

File is read locally — nothing is uploaded.

Troubleshooting

1

Unplug and reconnect.

2

Try another USB port.

3

Check Disk Management.

⚡

Performance Test

Browser-side checks — useful for detecting slowdowns in this session.

Run Tests

⚠For best results close unnecessary tabs first.

Results

—

Running…

JavaScript Speed—

DOM Speed—

Memory Score—

Load Timing—

📋

Diagnostic Report

Summary of all completed tests.

About DeviceDoctor

DeviceDoctor is a free browser-based workstation troubleshooter. Tests run entirely on your device — no data is transmitted or stored. Works on any modern desktop or laptop browser.