What is Screen Recorder?

Screen Recorder captures your entire screen, a specific window, or a single tab as a video file. It uses the native screen capture API, so no extensions or plugins are needed. Record demos, tutorials, or bug reports without installing anything.

Recordings save as WebM by default, and you can switch to MP4 when your device supports it — handy because MP4 plays almost everywhere and uploads cleanly to sites that reject WebM. You can pause and resume mid-recording, toggle the microphone separately from system audio, pick a Low, Medium, or High quality preset, and preview the result inline before saving. A rough file-size estimate ticks up beside the timer as you record. The video stays in memory only until you download or reset; nothing is uploaded.

How to use

1. Click Record and select a screen, window, or tab to capture.
2. Optionally enable microphone audio to add narration.
3. Stop recording, preview the video, choose WebM or MP4, and download.

When to use

• Filing a UI bug report and the video says more than three paragraphs would.
• Recording a quick tutorial for a teammate without setting up OBS or Loom.
• Capturing evidence of a flaky test reproducing in your browser.

Result

A QA engineer records a 30-second clip of a UI bug by selecting the tab, reproducing the issue, switching the format to MP4, and downloading the file to attach to the bug report.

FAQ

Why does my recording have no sound?

There are two layers. The microphone toggle here records your voice. The new System audio toggle decides whether tab or desktop sound is mixed in. One catch: for the system track to even reach the page, the screen-picker dialog must have its Share audio box checked when you start — some setups only offer that when you share a single tab. So enable the System audio toggle and tick Share audio in the picker.

Can I save as MP4 instead of WebM?

Often, yes. If your device can record MP4, a File format choice appears in the settings before you start — pick MP4 and the download lands as a .mp4. When MP4 recording isn't available, you'll get a WebM file instead, which you can convert with any WebM to MP4 converter (there's one on this site). MP4 is the safer pick for uploads to LinkedIn or X and for older media players.

Is there a recording time limit?

No hard cap from the tool itself, but the recording lives in memory until you save it. A long, high-resolution capture can easily exceed a gigabyte and may slow your tab down. Save and reset every 10-15 minutes for marathon recordings.

Will the recording include my cursor?

Yes, the screen capture API includes the cursor by default. Some browsers expose a cursor mode option in the share dialog (Always / Motion / Never). If you don't see one, the cursor is always captured.

Does this work on mobile?

Mostly no. The screen capture API isn't supported in Safari on iOS or Chrome on Android. Use the built-in screen recorder on those devices instead (Control Center on iOS, screen record tile on Android). Desktop Chrome, Edge, Firefox, and Safari all work.

Related Tools