Free browser screen recorder — capture, trim, download MP4

A Loom-style recorder that never leaves your machine

Most “online screen recorders” upload video to a server so they can transcode, host, or attach a share link. This tool does not. Capture runs through the browserScreen Capture API(getDisplayMedia), getUserMedia for mic and camera, andMediaRecorder for the take. Export re-encodes locally to a Fast Start MP4 (H.264 + AAC) so QuickTime, Photos, VLC, and most editors can open the file.

What you can record

• Entire screen — a full display (the picker still decides the surface).
• Window — a single application window.
• Browser tab — one tab, including tab audio when Chrome or Edge offers it.
• Microphone — mixed into the recording; mute mid-take if you need a pause in voice.
• Webcam overlay — optional circular bubble. Reposition and resize it in the editor before export.
• System / tab audio — requested when available. If the OS cannot provide it, the take continues without it.

How a take works

1. Choose the surface, mic, camera, and system-audio toggles.
2. Click Rec. The browser shows its capture picker (required user gesture).
3. A 3-second countdown starts. Escape cancels.
4. Pause, resume, mute mic or camera, then stop. Chrome’s “Stop sharing” bar also ends the take.
5. Preview, drag trim handles, place the webcam, and download an MP4.

Recordings sit in memory and IndexedDB on this device. Closing the tab with an unsaved take triggers the browser leave warning. Clear removes the file from this browser.

Browser support

Built first for Chrome and Edge on desktop. Those browsers ship reliablegetDisplayMedia, WebM MediaRecorder for capture, and H.264 / AAC encoding for export. Safari does not yet have a usable path for this tool. Firefox can capture a tab or window, but system-audio options are limited.

You need a secure context (https or localhost) and permission for camera and microphone if you enable them.

Privacy

There is no upload endpoint, no account, and no cloud transcode. The page talks only to your machine. That is the opposite of typical SaaS recorders (Loom, Tella, and similar) that store video so you can share a link. If you need a link, download the MP4 and host it wherever you already trust. See the site-widePrivacy Policy andTerms of Service.

Common questions

Does the video play in QuickTime and Photos?

Yes. Download writes a standard MP4 with H.264 video and AAC audio, and Fast Start metadata so players can open the file without scanning to the end. The in-browser preview may still use the original capture blob; the downloaded file is the compatible one.

Will my camera appear twice if I record the full screen?

Full-screen capture can include the floating camera window. Move or hide it while you present — the editor composites a clean bubble on export either way.

Where is the file stored?

Only in this browser (memory and IndexedDB). Other devices, profiles, and private windows will not see it. Download before you clear site data.

Related on Frontend Beauty

• All browser tools — JSON, regex, JWT, colors, and more, all client-side.
• Browser internals — how the platform APIs this tool uses actually work.
• JavaScript guides — media, async, and DOM patterns behind capture.
• Playground — try HTML, CSS, and JS next to this page.

External references:MediaRecorder (MDN),Screen Capture API (MDN),Recording media on web.dev.