Capture your screen, preview it, and download the video. Everything stays on your device.
Screen recorder captures your screen, a tab, a window or the whole display, straight from the browser and saves a WebM video, with optional audio. The capture is assembled with getDisplayMedia + MediaRecorder, and system or tab audio can be included where the platform allows. Note that getDisplayMedia is not available on iOS Safari.
No. Your recording is captured by your browser's MediaRecorder API, your selected screen or window (via getDisplayMedia) is encoded into memory on your own device and saved as a local download. The stream never reaches Sunasty or any server. Open your browser's DevTools, go to the Network tab and watch: no request carries your recording.
Yes, if the browser and the chosen source allow it (system/tab audio, or your microphone). Some platforms restrict system-audio capture.
Recent Chrome, Edge and Firefox on desktop support screen capture. It is not available on iOS Safari.
Yes, once the page has loaded. Because the processing happens on your device, you can disconnect from the network and the tool keeps working. This is the clearest proof that your data never leaves your machine.
It is completely free and requires no sign-up. There are no watermarks, no daily limits and no tracking cookies needed to use the tool.