DevicePrep™
Free browser-based tools

Device Testing Tools

Every tool runs locally in your browser with zero uploads. Pick a test to check your setup, or run the pre-call checklist to verify everything in under 60 seconds.

Run full checklist
No signup required100% private
Audio

Mic test

Test your microphone live, view levels, and record + playback.

Start test
Audio

Mic clipping test

Check whether your mic distorts when you get louder.

Start test
Audio

Background noise test

Estimate ambient noise and identify common sources.

Start test
Video

Webcam test

Preview video, switch cameras, and check resolution.

Start test
Video

Webcam FPS test

Measure frame rate and detect choppy video.

Start test
Video

Webcam lighting test

Check lighting quality and get quick improvement tips.

Start test
Video

Webcam flicker test

Detect flicker from indoor lighting (50/60 Hz).

Start test
Audio

Speaker test

Play left/right tones to confirm you can hear clearly.

Start test
Audio

Echo test

Test mic + speakers together to spot echo issues.

Start test
Input

Keyboard test

Test keys and check for stuck keys or ghosting.

Start test
Input

Mouse test

Test clicks, scrolling, and pointer accuracy.

Start test
Display

Screen test

Check pixels, colors, brightness, and banding.

Start test
Browser

Browser capability test

Verify WebRTC/WebGL support before a call.

Start test
Browser

Screen sharing test

Test screen sharing before you present.

Start test
Browser

Device check

Quick check that your browser can access key devices.

Start test
Network

Network test

Test network quality for calls: latency, jitter, stability.

Start test
Network

Upload speed test

Measure upload speed for stable video calls.

Start test
Network

Ping & jitter test

Measure ping and jitter to prevent dropouts.

Start test
All-in-one

Pre-call checklist

Run mic, camera, speakers, and network in one guided flow.

Start test

Why use our tools?

Built for reliability and privacy

Instant results

Get immediate feedback on your device status without waiting.

100% private

All tests run locally in your browser. No data leaves your device.

Works everywhere

Compatible with Chrome, Firefox, Safari, and Edge browsers.

All-in-one solution

Need to test everything?

The pre-call checklist runs all critical tests in under 60 seconds. Perfect before important meetings.

Start pre-call checklist
Device Testing Tools | DevicePrep™