Record your desktop, application windows, or browser tabs with our free Screen Recorder. Capture high-definition video using the W3C Screen Capture API, encode with VP9 WebM codec, and download video files with 100% browser-local privacy.
Press Start Screen Recording to launch the native browser media selector.
Choose Entire Screen, Window, or Chrome Tab to record in high definition.
Click Stop Recording to compile video preview and trigger automatic WebM download.
Uses navigator.mediaDevices.getDisplayMedia() to capture raw display pixels without requiring browser extensions or plugins.
Streams video buffers directly into a MediaRecorder instance formatted as WebM video chunks for fast local compilation.
Captured video streams remain strictly in local browser RAM as Blob objects. Zero video content is uploaded to any server.
The Screen Capture API exposes navigator.mediaDevices.getDisplayMedia({ video: true, audio: true }). This browser API invokes system display picker dialogs, allowing users to select desktop screens, windows, or tabs.
Video streams are passed into a MediaRecorder instance configured with video/webm; codecs=vp9. Chunks emitted during the session are pushed to an in-memory array and compiled into a single Blob object upon stopping.
Blob URLs created via URL.createObjectURL(blob) enable instant video preview playback and local file downloads without transmitting any video frames to external servers.