Screen Recorder

What this tool does

Screen Recorder captures a whole display, a single application window or one browser tab using the browser’s screen-capture API. Mix in tab or system audio and your microphone, choose frame rate, quality and format, use a countdown, pause and resume, and download the result as WebM or MP4 without any watermark.

Showing is often faster than explaining: a 40-second recording of a bug, a walkthrough of a new feature or a short lesson saves pages of instructions. Dedicated screen recording software needs installing, permissions and often adds watermarks or time limits.

This recorder uses getDisplayMedia, the same API that video-call apps use for screen sharing, so the browser itself asks what to share and shows that sharing is active. The video track and any audio are encoded live by MediaRecorder at the frame rate and bitrate you choose. When you record both tab audio and a microphone, the two are mixed with the Web Audio API into a single track, because MediaRecorder records only one audio track. The finished video stays on your device.

How to use Screen Recorder

1. Set Frame rate, Quality and Format, and choose whether to record tab or system audio, your microphone and the mouse cursor.
2. Click Start recording and pick an entire screen, a window or a browser tab in the browser’s dialog.
3. If you want sound from a tab, tick Share audio in that dialog.
4. Wait for the countdown, then do what you want to capture; use Pause and Resume to skip parts.
5. Click Stop here, or the browser’s Stop sharing button.
6. Watch the recording and click Download video.

Tips for better results

• Share a single tab rather than the whole screen to keep notifications and other windows out of the recording.
• 15 fps at Low quality is enough for slides and documents and produces small files; use 60 fps only for animations or games.
• Bitrate decides file size: at 4 Mbps a minute of video is about 30 MB.
• Close or hide anything private before you start; everything in the shared area is captured.

Common use cases

• Recording a bug with the steps to reproduce it for a developer.
• Creating a short product demo or onboarding walkthrough.
• Capturing an online lecture or webinar tab with its audio for personal notes.
• Recording yourself presenting slides with your microphone.

Common mistakes to avoid

• Forgetting to tick Share audio in the browser dialog, which produces a silent video even if audio is switched on here.
• Trying on a phone: mobile browsers do not offer screen capture to websites.
• Recording without checking the microphone level, then discovering the narration is inaudible; make a 5-second test first.