PublicSoftTools

Screen Recorder

Record your browser tab, application window, or full screen — directly in the browser. No install, no extension, no upload. Pause, resume, and download as WebM. Works in Chrome, Edge, and Firefox.

Record your screen

Capture a browser tab, application window, or full screen. No upload — everything stays in your browser.

Screen recording requires Chrome, Edge, or Firefox. This browser does not support it.

System audio (tab/app sound) is captured automatically when you share a browser tab in Chrome.

Your browser will prompt you to choose what to share — tab, window, or entire screen.

Browser tab

Capture a single tab including its audio. Best for recording web demos.

Window

Record a specific application window — editor, browser, design tool.

Full screen

Capture everything on your monitor, including the taskbar and desktop.

How Screen Recording Works

  1. 1Click Start Recording. The browser opens its built-in sharing dialog where you choose what to capture — a browser tab, a window, or your entire screen.
  2. 2Record. The timer counts up while your screen is being captured. Pause at any time and resume when you are ready — pauses are not included in the recording.
  3. 3Stop and preview. Click “Stop & Save” to end the recording. A video player appears so you can review the recording before downloading.
  4. 4Download. Save the recording as a WebM file. The file name includes the date and time for easy organisation.

What Is WebM and How to Open It

WebM is a modern video format developed by Google and fully open-source. It is the format browsers use natively for video recording because it can be encoded in real time without requiring complex hardware encoding. WebM files open in Chrome, Firefox, Edge, VLC, and most modern media players. Windows Media Player does not support WebM by default — use VLC (free) or convert to MP4 using HandBrake or the MP4 to MP3 Converter on this site after converting back from audio. For full MP4 conversion, use HandBrake (free, open-source).

Tips for Better Screen Recordings

Record a tab, not full screen

Selecting a specific browser tab keeps the recording clean — no notification popups, taskbar, or desktop clutter appear in the video.

Close unnecessary tabs

Recording consumes significant CPU and RAM. Close other heavy tabs before recording to keep the frame rate stable and avoid dropped frames.

Enable tab audio in Chrome

When selecting a Chrome tab to share, tick the "Share tab audio" checkbox at the bottom of the dialog to include the tab's sound in the recording.

Use pause for natural breaks

Pause the recording during setup or interruptions. Paused time is excluded from the timer and the output is a single seamless video without the break.

Download before closing the tab

The recording is held in browser memory. If you close or reload the tab before downloading, the recording is permanently lost. Download first, then close.

Convert to MP4 for wider compatibility

If the WebM file does not play on your target device, use HandBrake (free) to convert to H.264 MP4 — universally supported across phones, TVs, and video editors.

Frequently Asked Questions

Does this upload my screen recording anywhere?

No. The recording is captured and stored entirely in your browser's memory. Nothing is uploaded to any server. When you click download, the file is saved directly from your browser to your device. Closing the tab before downloading will lose the recording.

Which browsers support this tool?

Chrome, Edge, and Firefox all support the Screen Capture API used by this tool. Safari does not support getDisplayMedia and cannot record screens. On mobile, browser screen recording support is very limited — use a desktop browser for best results.

Can I record a specific browser tab?

Yes. When the browser shows the screen sharing dialog, switch to the "Chrome Tab" or "Firefox Tab" section and select the specific tab you want to record. This also captures that tab's audio automatically in Chrome.

Why is the output a WebM file?

WebM is the only format natively supported by the browser's MediaRecorder API for video recording. It is a modern, open-source format supported by Chrome, Firefox, Edge, VLC, and most modern video players. To convert it to MP4, use a tool like HandBrake or FFmpeg after downloading.

Can I record system audio (app sounds, music)?

In Chrome, when you select a browser tab to share, you can enable "Share tab audio" in the dialog — this captures audio from that tab. For application windows or full screen, system audio capture is available on Windows in Chrome but not consistently across all platforms and browsers.

What does the microphone option do?

Enabling "Include microphone audio" before recording requests access to your microphone and mixes your voice with any captured system audio. This is useful for commentary recordings, tutorials, or walkthroughs where you want to narrate what you are doing on screen.

Is there a time limit?

There is no hard time limit — the tool records until you click Stop. However, long recordings accumulate data in browser memory. Recording for more than 30–60 minutes may use significant RAM on lower-spec devices. For longer sessions, a dedicated screen recording app may be more reliable.