Free webcam and microphone test before your next video call

Check your camera, mic, lighting, framing, and audio before Zoom, Google Meet, Teams, interviews, classes, or client meetings. Private browser-based test. No account required. No audio or video upload.

Use Call Preflight as a free online webcam test, camera test, and microphone test before joining a video call.

It helps you check:

  • whether your camera works
  • whether your microphone works
  • how your voice sounds to other people
  • whether your lighting, framing, and background look good
  • which camera or microphone your browser is using

Useful before Zoom calls, Google Meet meetings, Microsoft Teams calls, remote interviews, online classes, sales calls, podcasts, and client meetings.

What you can test

  • Webcam test — Switch between available cameras and verify framing, lighting, and background.
  • Microphone test — Hear yourself through a WebRTC loopback with 2-second delay, simulating real call latency.
  • Device selection — Confirm which camera and microphone your browser will use.
  • Pre-call confidence — Catch issues before you join, not after.

Why use Call Preflight before a meeting?

Call Preflight is not just a webcam test. It is a pre-call confidence check. Most camera and mic tools show you a mirror. Call Preflight routes your audio and video through the same WebRTC path a real call uses, then adds realistic delay so you can hear and see yourself the way other participants will.

Private by design

No accounts, no analytics, and no server-side media processing. Your camera and microphone streams stay in your browser. No audio or video is uploaded. Your device and theme preferences are saved locally. See our Privacy Policy for details.

How it works

Call Preflight establishes a WebRTC connection with itself, routing your camera and microphone through the same path a real video call would use. Audio and video are delayed by two seconds so you can catch awkward pauses, background noise, or lighting issues before you join.

Works in modern WebRTC-capable browsers including Chrome, Edge, Safari, and Firefox.

Frequently asked questions

How can I test my webcam online?

Open Call Preflight, click Start free preflight check, choose your camera, and click Join test call. Your browser will ask for camera permission and show a delayed preview so you can check framing, lighting, and background.

How can I test my microphone before a video call?

Click Start free preflight check, select your microphone, and join the test call. Call Preflight plays your voice back through a WebRTC loopback with a 2-second delay so you can hear how you sound to other people.

Does Call Preflight record my camera or microphone?

No. Call Preflight does not record, store, or upload your camera or microphone streams. Audio and video are processed locally in your browser through WebRTC.

Why do I hear my voice with a delay?

Call Preflight adds a 2-second delay to simulate real video call latency. That helps you notice awkward pauses, talking over others, and how your voice actually lands for remote participants.

Can I use this before Zoom, Google Meet, or Microsoft Teams?

Yes. Call Preflight is a browser-based webcam and microphone test you can run before joining any video platform, including Zoom, Google Meet, Microsoft Teams, interviews, online classes, and client meetings.

Why can’t I hear myself?

You need to click Join test call and allow microphone access. Playback starts only after the WebRTC loopback connects. Check that the correct microphone is selected and that your browser tab is not muted.

Does this work on mobile?

Call Preflight works in modern mobile browsers that support WebRTC, camera, and microphone access. Device support varies by phone, browser, and operating system.

Is Call Preflight free?

Yes. Call Preflight is free to use with no account required.

Is my camera or microphone data uploaded anywhere?

No audio or video is uploaded to Call Preflight servers. Media is processed locally in your browser. See our Privacy Policy for details about local storage and standard web hosting logs.