Screen Recorder: Core Features and Principles

Need to record computer tutorials, online meetings, or gameplay without installing complex software? This tool uses your browser's native screen capture API to record high-definition, watermark-free videos in real time—no downloads or installations required. Export and save your recordings directly.

Why Choose Our Screen Recorder?

100% free with no watermarks, delivering clean and HD video recordings.
Supports simultaneous recording of system audio and microphone with perfect audio-video synchronization.
Runs entirely in your web browser. All data is processed locally and never sent to our servers, ensuring your privacy and security.

How to Use

Click the "Start Recording" button on the page.
When the browser's screen sharing dialog appears, select the screen, window, or tab you want to record. Check "Share audio" if you need to record system sound.
Begin your screen operations; the tool will capture the video and audio in real time.
Once finished, click "Stop Recording". Wait for the video file to be generated, then click download to save it to your device.

Output Format: Typical recording results are MP4 or WebM video files. For example, recording a 30-second presentation will yield a 1920x1080 MP4 file.

Frequently Asked Questions (FAQ)

Can I record just a specific window instead of the entire desktop? Yes. In the browser's screen sharing selection interface, you can choose a specific application window or browser tab for precise recording.
Is there a maximum recording time limit? There is no strict time limit, but we recommend keeping single recordings under 1 hour to prevent large file sizes and slow processing times.

Important Notes

Please use the latest version of Chrome, Edge, or Firefox for optimal compatibility. You must grant screen recording permissions upon first use; if denied, recording will not be possible. Do not close or refresh the web page during recording, or unsaved videos will be lost. All recording data is processed locally on your device and is never uploaded to the internet, so you can use it with peace of mind.

Technical Notes & Tips

For stable recording performance, we recommend closing unnecessary programs to free up system resources before you start. For the best HD quality, set your display scaling to 100% in your monitor settings to avoid blurriness. After recording, wait briefly for the video to render. Video files are saved in WebM format by default, but you can use a video converter tool to change them to MP4 for easier sharing.