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Capture a full screen, a single application window or one browser tab without installing anything. Add your microphone, pause when you need a break and download the finished video straight from the page, with nothing ever leaving your computer.
Processing locally on your device
Overview
Browser-based screen recording relies on the getDisplayMedia API, the same permission system that video-call apps use when you share your screen. When you press record, your browser opens its own picker, and you choose whether to share an entire screen, one application window or a single tab. The page never sees anything you did not pick, and you can end sharing at any time from the browser’s sharing bar, which also stops the recording automatically.
Frames are captured at up to 30 frames per second, which is smooth enough for software walkthroughs, slide presentations and bug reports. The stream is encoded live by the browser’s built-in MediaRecorder, usually as WebM with the VP9 or VP8 video codec and Opus audio, or as MP4 in browsers that prefer it (Safari, for example). Because encoding happens in real time on your own device, there is no rendering or upload step at the end; the file is ready the moment you click stop.
Audio is where browsers differ most. Chromium-based browsers such as Chrome and Edge can capture tab audio when you share a tab, and system audio when you share a whole screen on Windows and ChromeOS. Firefox and Safari can record the screen but offer far more limited audio capture. If you enable the microphone, it is opened with echo cancellation and noise suppression and then mixed with any tab or system audio into a single soundtrack, so the narration and the app sounds stay in sync during playback and editing.
Recordings are kept in the tab while it stays open, each with a playback preview, its duration and its file size, so you can make several takes and download only the best one. There is no time limit beyond the memory available on your device. As a rough guide, a 1080p screen recording of mostly static content such as documents or code often lands somewhere around 5–20 MB per minute, while fast motion like video playback or gaming produces considerably larger files.
| Browser | Screen / window | Single tab | Tab audio | System audio |
|---|---|---|---|---|
| Chrome (desktop) | Yes | Yes | Yes | Yes on Windows and ChromeOS when sharing a screen |
| Edge (desktop) | Yes | Yes | Yes | Yes on Windows when sharing a screen |
| Firefox (desktop) | Yes | Limited | Limited | Limited |
| Safari (macOS) | Yes | Limited | Limited | Limited |
| Mobile browsers | Generally not supported | No | No | No |
Choose whether to include your microphone before you start.
Click Start recording and pick a screen, window or tab in your browser’s sharing dialog. To capture sound from a tab, tick the share-audio option in that dialog.
Use Pause and Resume to skip over parts you don’t want; the timer shows the recorded length.
Click Stop, or end sharing from the browser bar, to finish the take.
Preview the recording and download it as WebM or MP4, depending on what your browser produces.
Use cases
Record the exact clicks that trigger a bug in a web app, then attach the WebM to a ticket. A 30-second clip shows the problem far more clearly than a paragraph of reproduction steps.
Walk a colleague through a spreadsheet, a CMS or a settings screen while you narrate with your microphone. Pause between steps so the final video stays tight.
Share only the browser tab that holds your slides so notifications and other windows stay out of frame, and capture the tab’s audio if the deck includes video clips.
Capture a tab playing a demo you are allowed to keep for reference, with its sound, so you can review details later without relying on a replay link.
Pro tips
Answers to common questions about the screen recorder.
System and tab audio capture is supported in Chromium browsers like Chrome and Edge. When you share a tab, tick the share-audio option in the browser dialog; when sharing a full screen, system audio is offered on Windows and ChromeOS. Firefox and Safari currently provide screen video with much more limited audio options.
Not in this tool, which records one source at a time. Use the Screen + Webcam recorder instead: it places a movable camera bubble over your screen capture and saves both as one video. To film only your camera, use the Webcam Recorder.
There is no fixed limit. The recording is held in memory until you download it, so very long sessions at high resolution are limited by your device’s RAM. For recordings over an hour, download each take as soon as you finish it.
The recording ends automatically when screen sharing stops, for example if you click Stop sharing in the browser bar, close the shared tab or window, or the operating system revokes the permission.
The tool uses whatever your browser’s recorder supports best. WebM with VP9 plays in all modern browsers and in VLC, and uploads fine to YouTube. MP4 is more widely accepted by older editors and some messaging apps.
No. ToolEnhancer processes files on your own device inside the browser. They are never sent to, stored on or seen by our servers.
Yes. The screen recorder is free to use with no sign-up, no watermarks and no daily limits.