Online Screen Recorder

Hit record, pick a screen, window or tab — and you're recording. No watermark, no time limit.

🎙️ Also record my microphone To capture computer (system) sound, turn on "Share audio" in the picker that appears when you start.

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0 B uploaded — this page has not sent your files to any server?

No install, no upload — this recorder uses your browser's built-in capture, so there's nothing to download and nothing is sent anywhere. Work screens and private info stay on your device.How this differs from upload-based sites — most converter sites upload your video or recording to a server, process it there, and promise to delete it after a while. Until that happens, your file is sitting on someone else's server. vidmoa has no upload step at all. The more sensitive the file — a recorded meeting, a phone call, family footage — the more that difference matters.

Recording your screen with sound, without installing anything: what to switch on

For a how-to, a bug report or a class you want to keep, this page uses the screen-sharing feature built into your browser to record an entire screen, a single window or a tab. There is no watermark and no time limit, and the recording only reaches your computer when you press Save. To capture sound as well, a couple of settings need to be right before you start.

A closer look

Pressing Start recording opens the browser’s picker for what to share. The page asks for 30 frames per second at about 8 Mbps, so a screen with lots of motion can approach 60 MB per minute, and because the resolution is whatever you share, a high-resolution monitor makes larger files. The recording is saved as MP4 (H.264) when your browser supports it, otherwise as WebM. Until you save, the data sits in this tab’s memory, so for sessions of several hours, stop and save roughly every hour, and do not close or reload the tab while recording.

Sound comes from two places. Computer sound only comes in if you turn on the audio-sharing switch in the picker: choosing a tab shares that tab’s sound, and on Windows, choosing the entire screen can share all system audio. On a Mac, tab audio is usually the only option, and picking a single window often offers no audio at all. Your own voice is added by ticking the microphone box before you start; when both are present, they are mixed into one track and cannot be separated later.

How to use it

If you will narrate, tick Also record my microphone first. The browser asks separately for microphone access when recording starts.
Press Start recording and choose an entire screen, a window or a tab in the picker. For computer sound, turn on the audio switch in the same dialog, then press Share.
While recording, a red dot blinks next to the timer. If the status says it is “Currently recording video only (no sound)”, stop right away, change the settings, and start again.
Press Stop on this page or Stop sharing in the browser’s bar. A player appears; check the recording and press Save to download a file named like “screen-recording_20260927_1430.mp4”.

When it helps

A walkthrough for familyRecord the steps for filling in an online government form while your voice explains each click, so a parent can follow along.

Bug reportsRecord only the tab where the error happens, so other windows and notifications stay out of the video you send to the developer.

A webinar with no replayWhere the organizer allows recording, capture the talk with tab recording and tab audio to review later.

Presentation rehearsalRecord yourself clicking through slides with the entire screen and your microphone, then check pacing and verbal habits.

Common snags

The recording has no sound.Either the audio switch was off or you picked a window. The combinations that capture sound are a tab with tab audio shared or, on Windows, the entire screen with system audio shared. Firefox and Safari may record the picture without offering computer sound, so use Chrome or Edge.

It says “This browser doesn’t support screen recording.”Phone and tablet browsers have no screen-sharing feature, so this message appears. Use the recorder built into the system instead, from Control Center on iPhone or Quick Settings on Android, and open this page on a computer.

My voice and the computer sound echo.Sound from the speakers is being picked up again by the microphone and recorded twice. Headphones or a headset fix it.

Another program won’t open the WebM file.When the browser cannot record MP4, the file is saved as WebM. Convert it with WebM to MP4 on this site, and if it is too large, bring it down to 720p with Compress video.

Tip When you record the entire screen, chat and email notifications are captured too, so turn on your operating system’s Do Not Disturb or Focus mode, or record just the tab you need.

FAQ

Does it record computer (system) sound?

Yes. In the picker that appears when you start, choose a tab and enable "Also share audio" to capture that tab's sound. On Windows you can also share system audio when picking the entire screen (on macOS only tab audio is available). Turn on the microphone checkbox above to mix your voice in as well.

Is there a watermark or time limit?

Neither. Longer recordings just make bigger files. For multi-hour sessions we recommend saving in chunks of about an hour to keep browser memory happy.

Is my recording uploaded anywhere?

No. Recording and saving happen entirely in your browser — the video never leaves your device.

What format is the recording saved in?

MP4 when your browser supports recording it, otherwise WebM. If you got WebM and need MP4, use the WebM to MP4 converter — it takes seconds.

Does it work on phones?

Mobile browsers don't support screen capture, so use Chrome or Edge on a computer. On iPhone and Android, use the screen recorder built into the OS (Control Center / Quick Settings).