Screen Recorder

Once recording stops, the video appears in the playback area — you can watch it with the play button or save it to your computer with the download link.

This tool uses browsers' built-in getDisplayMedia and MediaRecorder APIs. getDisplayMedia opens the operating system's own screen/window/tab picker, and MediaRecorder records the resulting video (and audio, if included) stream into a video file.

• When you click 'Start Recording', the browser opens a permission dialog to choose which screen/window/tab to share.
• Once the user selects a source and grants permission, a live video stream from that source begins.
• The MediaRecorder API writes this stream in chunks to a video file.
• When 'Stop Recording' is clicked, recording ends and the chunks are combined into a playable video.
• The video can be played directly in the browser and saved to the device via the download link.

While giving a presentation, you click 'Start Recording' and choose your browser tab; when the presentation ends, you click 'Stop Recording' and the video instantly appears in the playback area, with a download link ready.

• Before starting, carefully choose which window or tab to share from the browser's picker list.
• If you want audio, remember to check the 'share tab audio' or 'share system audio' option in the browser's permission dialog.
• Download the video as soon as recording finishes — it's cleared from memory when the page is reloaded or closed.

Screen recording is used for many purposes, such as creating tutorial videos, filing bug reports, capturing product demos, or documenting a presentation. Traditionally this required installing separate software; modern browsers now offer this functionality directly.

This tool uses a combination of the W3C standard Screen Capture API (getDisplayMedia) and the MediaRecorder API. Together, these two APIs allow screen recording to happen through the browser itself, without needing to install any additional plugin or software.

For privacy, browsers only start screen sharing with the user's explicit, informed consent; a system dialog appears each recording session, letting the user choose which screen, window, or tab to share. This prevents websites from secretly recording the screen without user permission.

The recorded video is created in the WebM format and kept entirely in the browser's memory; it's never uploaded to a server at any stage. This offers both privacy and speed advantages, since large video files don't need to be sent over the internet.

When using this tool, it's important to clearly choose what content you intend to record — especially with the 'entire screen' option, keep in mind that other windows on your desktop may show information you don't want visible.