🎥 Screen Recorder
Record your screen, a window or a tab with microphone and system audio in the browser. No upload, no watermark, no time limit — download MP4 or WebM.
Your browser will ask what to share. Tab audio is available when you share a browser tab; whole-screen system audio depends on your operating system.
What Screen Recorder Does
This screen recorder captures your whole screen, a single window or one browser tab — with your microphone, the tab or system audio, or both — and saves the video straight to your computer. It runs entirely in the browser using the Screen Capture and MediaStream Recording APIs, so there is no app to install, no account, no watermark and no upload.
When you record your voice and the computer’s audio together, the tool mixes them into a single audio track before recording. That detail matters: a recorder handed two separate audio tracks keeps only the first, which is why some browser recorders silently lose either your narration or the video’s sound.
The recording lives in this tab’s memory until you download it. It is not saved anywhere else, so download before you close the page.
How to Use Screen Recorder
- Choose whether to include your microphone and tab or system audio
- Pick a frame rate — 15 fps for slides, 30–60 fps for motion
- Press Start recording and choose a screen, window or tab to share
- Pause, resume, then press Stop and save (or use the browser’s Stop sharing bar)
- Preview the video and press Download
What You Can Capture
Desktop browsers only. Availability of audio depends on what you choose to share and on your operating system.
| You share | Video | Audio you can include |
|---|---|---|
| A browser tab | That tab | Tab audio (Chrome and Edge, every desktop OS) + your mic |
| A window | That application window | Your mic; system audio is usually not offered |
| Entire screen | Everything on that display | System audio on Windows and ChromeOS; on macOS in recent Chrome with macOS 14.2+; plus your mic |
Choosing a Frame Rate
| Frame rate | Best for |
|---|---|
| 15 fps | Slides, documents, spreadsheets — smallest files |
| 30 fps | Software tutorials and general use |
| 60 fps | Fast motion such as games or animations |
How to Read Your Result
MP4 or WebM?
The tool asks your browser which formats it can encode and picks MP4 first, because it plays almost everywhere, including on phones and in most editors. If the browser cannot encode MP4 it falls back to WebM, which plays in browsers, VLC and most modern editors and can be converted afterwards if needed.
Ending a recording
Press Stop and save, or click the browser’s own “Stop sharing” bar — either finishes the file cleanly. Closing the shared window or tab also ends the recording.
Limitations & Accuracy Notes
- Phones and tablets do not allow web pages to capture the screen; use the device’s built-in screen recorder instead.
- System audio from the whole screen depends on your operating system and browser version; on some setups only tab audio is available.
- Very long recordings are limited by the memory available to the browser tab.
- There is no built-in editor, webcam overlay or cursor highlighting.
- Recording calls or meetings may require the consent of everyone taking part under the laws where you and they are located.
Frequently Asked Questions
Is this screen recorder free, with no watermark?
Where is my recording stored?
Can it record system audio?
Does it work on a phone or tablet?
Will I get an MP4 or a WebM file?
Can I record a Zoom or Teams meeting with this?
How big will the file be?
References & Further Reading
- MDN Web Docs — MediaDevices.getDisplayMedia() — Screen, window and tab capture
- MDN Web Docs — MediaRecorder.isTypeSupported() — How the output format is chosen
- addpipe — Capturing the screen with system sounds on Chrome on macOS — System-audio support by platform