Justools

Screen Recorder

Record a browser tab, window, or full screen and download the clip as WebM.

Record your screen locally. Choose a tab, window, or full screen when your browser asks. Video saves as WebM.

Free tools that often go together. Everything runs in your browser.

How to use this tool

  1. Optional: turn on Include system audio when supported if you want sound from your computer or tab.
  2. Click Start recording and choose a browser tab, window, or your full screen when prompted.
  3. Click Stop when finished, preview the clip, then download the WebM file.

Frequently asked questions

What is a screen recorder?

A screen recorder captures everything happening on your screen and saves it as a video file. Teachers use it to record lessons so students can rewatch a lecture at their own pace. Software teams use it to create step-by-step tutorials or walkthroughs that show exactly where to click. Support teams and developers record bug reports so a colleague can see an error happen instead of reading a written description. Gamers save gameplay clips to share highlights, and remote workers record a short update or demo a feature for a client instead of scheduling a live call. Because the video captures your screen directly, it is a fast way to show, not just tell, especially when a screenshot alone would not explain the full sequence of steps.

Who is this screen recorder for?

This tool suits anyone who needs a quick video without installing desktop software. Teachers can record a lesson or feedback clip for students. Students can capture a shared document or coding session for a group project. Remote workers can record a short async update instead of holding a meeting, and support staff can record a bug happening on screen to send to developers. Creators and freelancers can capture a software demo or a walkthrough of a design file for a client. Because everything runs in the browser, there is no download, license, or account setup, which suits one-off recordings and people who record only occasionally rather than daily.

What can I use screen recordings for?

Common uses include how-to tutorials that show software steps in order, walkthroughs of a new feature or app for teammates or customers, and demo videos for presentations or client pitches. Bug reports benefit from a recording because a developer can see the exact clicks and error messages instead of guessing from a description. Training teams record short clips to onboard new staff, and support teams use recordings to answer common questions once and reuse the video. Creators also use screen recordings for social media clips, portfolio walkthroughs, or narrated demos of a website or app in action.

Why use a browser-based recorder?

You can start in seconds with no download or login. Recording runs on your device, which keeps casual clips simple. Long broadcasts or heavy editing may still be easier in dedicated desktop software.

What can I record?

When you click Start, your browser asks you to share a tab, a single window, or your full screen. Pick the smallest option that fits your clip so viewers are not distracted by unrelated windows.

Can I include audio?

Yes, when your browser supports it. Turn on Include system audio before you start. Support varies by browser and operating system. You may get tab audio only, or no audio on some mobile devices.

Is my recording uploaded to your servers?

No. Video is captured and held in your browser until you download it. We do not upload, store, or watch your recordings.

Where is the recording saved?

In your browser memory until you click Download WebM. After download, the file is on your device like any other download. We do not keep a copy on a server.

Why WebM?

Most browsers record to WebM with good quality and a reasonable file size. You can convert to MP4 with free tools elsewhere if you need that format for a specific app.

Can I download MP4 instead of WebM?

Not from this tool today. Screen capture in the browser records to WebM. Download WebM here, then convert to MP4 with a free converter if your editor requires it.

Does this work on mobile?

Screen capture works best on desktop Chrome, Edge, and Firefox. Many mobile browsers limit or block screen recording. If Start fails, try a desktop browser.

Processed locally in your browser. Your files are never uploaded to our servers.