Screen Recorder — Free Browser-Based Screen Capture

Record your screen, a window, or a tab — no extensions or downloads needed.

How It Works

  1. 1Upload your file by dragging it into the drop zone or clicking to browse.
  2. 2Adjust the quality slider to balance file size and visual fidelity (optional).
  3. 3Click Download to save your converted file.

About Screen Recorder

Record your screen directly from your browser using the native Screen Capture API. Choose to record your entire screen, a specific window, or a browser tab. Optionally include audio from your microphone or system. Preview the recording before saving, and download as WebM. No browser extensions, no installs, no sign-ups — just click record. Your recording stays on your device and is never uploaded to any server.

Frequently Asked Questions

Do I need to install anything?

No. This tool uses the browser's built-in Screen Capture API (getDisplayMedia). It works in Chrome, Edge, Firefox, and other modern browsers without any extensions.

Is my file uploaded to a server?

No. Transmute processes everything locally in your browser using JavaScript and the Canvas API. Your files never leave your device — there is no server, no upload, no cloud processing.

Can I record with audio?

Yes. You can include microphone audio for narration. System audio capture depends on your browser and OS — Chrome on Windows and macOS supports it when sharing a tab.

What format is the recording?

Recordings are saved as WebM (VP8/VP9 video with Opus audio), which is the native format for browser MediaRecorder. Use our WebM to MP4 tool if you need MP4.

Is there a recording time limit?

No built-in limit. Recording length is only constrained by your device's available memory and disk space. Very long recordings (30+ minutes) may use significant memory.

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