// WORKS IN CHROME + FIREFOX ON macOS · NO QUICKTIME NEEDED
Recording your Mac screen should not require digging through QuickTime Player menus or installing third-party apps from the App Store. This screen recorder for Mac runs entirely inside your browser, using the getDisplayMedia API that Chrome and Firefox support natively on macOS. Open the page, click Start Recording, and pick what you want to capture: your entire display, a single application window, or one browser tab.
The recording captures your screen at up to 2.5 Mbps in WebM format with VP9 video and Opus audio. If you need to narrate what you are showing, toggle the microphone option before starting and your voice will be mixed into the final file automatically. When you stop, the video appears instantly in the preview player, ready to download. No data leaves your Mac at any point during the process.
Step 1: Open this page in Chrome or Firefox on your Mac. Safari does not currently support the getDisplayMedia API, so screen recording only works in Chromium-based browsers or Firefox on macOS.
Step 2: Decide whether to include microphone audio. If you want a voiceover, enable the mic toggle. macOS may prompt you to allow microphone access in System Settings the first time.
Step 3: Click Start Recording. Your browser will show a system dialog where you pick what to share: your entire screen, a specific window, or a browser tab. On macOS Ventura and later, you may also need to grant Screen Recording permission under System Settings > Privacy & Security.
Step 4: Perform whatever you need to capture. The timer counts up in real time. When finished, click Stop. The WebM file is assembled locally and appears in the preview player. Click Download to save it to your Mac.
Developers creating bug reports often need a quick screen capture to show exactly what is happening. Instead of launching QuickTime, waiting for it to load, and trimming afterward, this tool lets you record directly from the browser tab where the bug lives.
Teachers and tutors preparing short walkthroughs for students can record their screen with narration in one pass, without needing to install OBS or ScreenFlow. The WebM output is small enough to share via email or upload to a learning management system.
Freelancers reviewing design mockups or providing feedback to clients can record their screen as they talk through changes, creating a personal async video message that is more effective than a wall of text in Slack.
QuickTime Player records in MOV format, which is large and sometimes incompatible with web platforms. This tool produces lightweight WebM files that play natively in any modern browser. There is no software to install or update, no menu to navigate, and no file to export after the recording.
Unlike paid Mac apps like ScreenFlow or Camtasia, there is no trial period, no watermark, and no account creation. The entire recording session happens inside your browser using built-in Web APIs. Your screen content never touches a remote server.