Record your screen directly in the browser. No install, no signup. Download as WebM.
Screen Recorder captures whatever is on your display, or in a single browser tab or application window, and saves it as a downloadable video file directly from your browser. It uses the built-in Screen Capture API (getDisplayMedia) together with the MediaRecorder API, so there is nothing to install and no account to create.
It is handy for developers recording bug reproductions, support teams making quick walkthroughs, teachers producing short tutorials, and anyone who needs to grab a clip of a meeting, dashboard, or gameplay. Recordings are encoded as WebM (typically VP8/VP9 or AV1 video with Opus audio) and can optionally include microphone narration alongside the system or tab audio.
The tool relies on two web standards. navigator.mediaDevices.getDisplayMedia() prompts you to select a screen, window, or tab and returns a MediaStream of the video frames. If you enable narration, a second call to getUserMedia() grabs your microphone, and the two audio tracks are merged. That combined stream is handed to a MediaRecorder instance, which encodes the frames on the fly.
MediaRecorder emits chunks of compressed data as Blob objects, which are collected in memory and stitched into a single file when you stop. Output is almost always WebM because that is the container browsers encode natively; the video codec is usually VP8, VP9, or AV1 and audio is Opus. Frame rate and resolution follow your chosen source, so a 1080p screen recorded at 30 fps produces a 1920x1080 WebM at roughly that cadence.
Because everything happens in the page, the video never travels to a server. When you close the tab, the captured Blob is discarded from memory. If you need MP4 instead of WebM for editors that dislike WebM, convert the downloaded file afterward with a dedicated video converter.
Yes, it is completely free with no sign-up. The capture is processed entirely in your browser using the MediaRecorder API, so the video is never uploaded anywhere; it stays in memory until you download it and is cleared when you close the tab.
Recordings are saved as .webm files, typically with VP8, VP9, or AV1 video and Opus audio, since that is what browsers encode natively. You can convert to MP4 afterward if your editor needs it.
You can include the shared source's audio by ticking the audio box in the browser's share dialog, and enable microphone narration with the tool's mic toggle. Note that reliable tab or system audio capture works best in Chromium-based browsers like Chrome and Edge.
It works in modern desktop Chrome, Edge, Firefox, and Opera, which support getDisplayMedia and MediaRecorder. Safari support is limited, and most mobile browsers do not allow screen capture from a web page, so use a desktop browser.
Yes. When you click Start Recording, the browser's picker lets you choose your entire screen, a single application window, or one specific browser tab, so you can keep other content off camera.
There is no watermark and no fixed time limit imposed by the tool. Very long recordings are only constrained by your device's available memory, since the video is buffered locally until you stop and download it.
Cursor visibility depends on the source you picked and browser settings, and audio is only recorded if you enabled it in the share dialog or turned on the microphone. Firefox in particular does not capture system audio, so use Chrome or Edge if you need it.