Screen Recorder

What this tool does

The Screen Recorder captures your screen, a single window or a browser tab as a video file — straight from the browser, with no software to install and no account to create. You press a button, your browser shows its own picker for choosing what to share, and the tool records until you stop. While recording you see a live timer and a clear indicator. When you stop, you get a player to review the result and a button to save it.

Everything happens on your device. Frames are captured with the Screen Capture API, recorded with the built-in MediaRecorder API, and assembled into a WebM file locally. The video is only written to disk when you click Download — nothing is uploaded.

When you’d use it

Capturing what is on screen is constantly useful:

• Bug reports — recording the exact steps that trigger a problem so a developer or support team can see it happen, instead of describing it.
• Demos and walkthroughs — showing a colleague or client how a feature works, or recording a product demo for later.
• Tutorials and how-tos — capturing a step-by-step process to share with a team, a class or an audience.
• Feedback and reviews — recording yourself clicking through a design or a draft while you talk through what you think.
• Saving something fleeting — capturing an animation, a video call moment (with consent) or anything that won’t sit still for a screenshot.

Because the recording stays on your machine, it is safe for internal tools, private dashboards and pre-release work.

How to use it

1. Optionally tick “Include my microphone.” Do this first if you want to narrate — it mixes your voice into the recording.
2. Press Start screen recording. Your browser opens its own picker. Choose a whole screen, a specific window, or a browser tab, and confirm. If you want a tab’s audio, tick the audio option the browser offers.
3. Do what you need to record. A red indicator and a running timer show the recording is live.
4. Stop the recording. Press Stop recording in the tool, or use your browser’s own “Stop sharing” banner — either way the recording is finished and saved. The tool detects when sharing ends and finalises the video.
5. Review and save. Play the recording back in the preview. Press Download to save a screen-recording.webm file, or Record again to discard it.

How to read the results and fix problems

When the recording finishes, watch it back in the preview before you rely on it. Check three things: the picture shows the right screen or window; the motion is smooth enough; and the audio is present if you expected it. If the video is fine but there is no sound, the most common cause is that system audio could not be captured — re-record with the microphone option enabled so your narration is included regardless. If the recording never starts, you are probably on a browser or device that does not support screen capture; the tool will say so plainly.

Browser compatibility

Screen recording uses the getDisplayMedia API, which is a desktop-oriented feature. It works well in current desktop Chrome, Edge, Firefox and Safari. Capturing system or tab audio varies: sharing a browser tab and including its audio is the most reliable path; capturing whole-screen system audio works in some browser and OS combinations and not others. On phones and tablets the API is unavailable or restricted, so the tool degrades gracefully and shows a message — use your device’s built-in screen recorder there instead. The page must be served over HTTPS, which it is.

Privacy

The recording is captured and assembled entirely in this browser tab. Nothing is uploaded, streamed or stored on a server, and screen sharing stops the instant you press Stop. To check a webcam before a call you record, try the Webcam Test. Recording an internal demo or a bug report here is completely confidential — the file never leaves your device until you choose to save or share it.