What Screen Recorder helps you do
Record your screen, a single window, or a browser tab without installing a desktop application or sending any footage to a server. Add microphone narration and an optional webcam overlay, pause and resume while you work, then download the finished video. It is built for walkthroughs, bug reports and quick demos where a five-minute clip explains more than a paragraph.
Recording runs entirely in your browser using the Screen Capture and MediaRecorder APIs. Your screen, microphone, and camera streams are not uploaded to Haivix servers.
How it works
The browser's Screen Capture API supplies a media stream for the screen, window or tab you choose in the picker. MediaRecorder encodes that stream, plus the microphone and the optional webcam overlay, into a video file. Encoding happens in the page, so the recording exists only in memory until you download it. Closing the tab or stopping the share ends the capture.
How to use Screen Recorder
- Choose whether to include the microphone and a webcam overlay, then select Start recording.
- Pick the screen, window, or tab to share in the browser picker and start presenting.
- Pause and resume as needed, select Stop, preview the clip, and download it.
- If the clip is for a ticket, trim or compress it before attaching it.
When to use it
- Record a bug, walkthrough, or demo to share with a teammate or client.
- Capture a tutorial, presentation, or browser workflow with voice narration.
- Keep a quick recording of something on screen without opening a full video editor.
- Show a design review comment against the live interface.
- Record a short onboarding clip for a new colleague.
- Capture a reproducible sequence for a support ticket.
When not to use it
- Do not record a screen that shows private messages, tokens or customer data.
- Do not expect system or game audio in every browser; tab audio support varies.
- Do not use it for long, edited presentations that need cuts and titles.
Example
A support engineer records a two-minute clip of a checkout error in a single browser tab, with narration and a small webcam overlay. The preview confirms the error is visible, the WebM is downloaded, and the clip is attached to the ticket with the steps written underneath.
What you can do with Screen Recorder
- Record the entire screen, one window, or a single browser tab.
- Include microphone narration with an optional webcam overlay.
- Pause and resume without ending the recording.
- Preview the clip before downloading it.
- Download as WebM, or MP4 where the browser supports it.
- Keep the capture and the finished file on your device.
Example: record a bug walkthrough
Open the page that shows the problem, start the recorder, and choose the tab rather than the whole desktop. A tab recording avoids exposing unrelated windows and keeps the clip focused.
Narrate the steps and pause when you need to check a detail. A paused recording is easier than one long take with long silences.
Stop, preview the result, and download it. If the file is too large for a ticket, run it through the video compressor before attaching it.
What to know before you start
- In-browser recording requires a desktop browser such as recent Chrome, Edge, or Firefox.
- Recording saves as WebM in most browsers; some browsers can produce MP4 instead.
- Browser codecs cannot encode every format, so the download format depends on your browser.
- System audio is not guaranteed; tab audio depends on the browser and the shared surface.
- The recording is held in memory, so very long sessions can exhaust the tab.
Common mistakes
- Recording the whole desktop when a single tab would be clearer and safer.
- Forgetting to unmute the microphone or choosing the wrong input device.
- Closing the picker or the shared window mid-recording and losing the stream.
- Recording a long take without pauses, which makes later trimming harder.
- Assuming the browser will produce MP4; the default is often WebM.
- Leaving notifications or private tabs visible in the captured area.
Troubleshooting
If the recording is silent, check the microphone toggle and the browser's input permission before starting again.
If the browser shows a black frame, the shared surface may be protected or the picker selection may have changed. Stop and start a new share.
If the download will not play in a specific app, convert the WebM to MP4 with the video converter. Some editors still prefer MP4.
If the recording stops unexpectedly, the shared window may have closed or the browser may have revoked permission. Keep the tab open until the download completes.
If the webcam overlay is missing, confirm that the camera permission was granted and that the overlay was enabled before the recording started.
Related standards and documentation
- The Screen Capture API defines getDisplayMedia and the browser picker.
- MediaRecorder and the WebM container describe the recording pipeline.
- Prefer a tab or window over the full desktop.
- Pause instead of restarting after a mistake.
- Convert WebM to MP4 if an app rejects it.