Screen & Audio Recorder

Record your screen, camera, or microphone directly from your browser.

How to Use

Grant browser permissions

Click 'Start Recording' and allow screen sharing or microphone access when the browser permission dialog appears.

Recording begins

MediaRecorder captures your screen/camera/mic stream live. A timer and indicator confirm recording is active.

Stop and compile

Click 'Stop Recording' — the browser packages all captured media chunks into a downloadable WebM file.

Preview and download

Review the recording and save the WebM file to your device for sharing, editing, or archival.

Browser-Native Recording

Our recorder uses the HTML5 MediaRecorder API. When you grant permission, your browser captures the raw media stream and compiles it entirely on your computer into a downloadable WebM file - no software installation or server upload required.

Real-World Examples & Use Cases

Software Tutorials and Screen Demos

Developers, technical writers, and educators create screen recording tutorials to demonstrate software features, installation steps, debugging workflows, and user interface walkthroughs. Browser-based screen recording eliminates the need to install dedicated software like Loom, Camtasia, or OBS Studio for quick tutorial creation. Recording a specific browser tab keeps demonstrations focused on the relevant content. These recordings are ideal for internal documentation, customer support libraries, onboarding videos, and educational platforms where a visual demonstration communicates more clearly than written instructions.

Bug Reports and User Testing

Quality assurance teams and product designers use screen recording to capture reproducible bug scenarios. A recording showing exactly which interactions trigger a bug provides developers with precise reproduction steps that written descriptions often miss. User experience researchers recording participant screen sessions during usability tests capture authentic interaction patterns without requiring dedicated eyetracking hardware. Remote work environments benefit from screen recordings that replace the need for live screen-sharing when reporting issues across time zones.

Online Meeting and Webinar Archiving

Teams use browser recording to capture online meetings, webinars, and presentations for participants who couldn't attend live. Recording a browser tab containing a webinar (or a video conferencing tool like Google Meet or Zoom's web client) creates a local archive that isn't dependent on the platform's own recording feature or storage tier. Internal training sessions, company all-hands meetings, and product demos can be recorded and distributed as WebM video files for asynchronous consumption by distributed teams across different time zones.

Game Streaming and Content Creation

Casual gamers and content creators use browser-based recording to capture web game highlights, online chess/card game sessions, and browser-based experiences without configuring a full broadcast setup. Artists using web-based creative tools (Figma, Canva, browser-based DAWs) record their design process for portfolio time-lapse videos. Educators creating online course content record browser-based interactive exercises and coding environments to show learners expected behavior and interactions. The zero-setup nature of browser recording makes it accessible for occasional creation without a permanent studio workflow.

How It Works

MediaRecorder API — screen and audio recording workflow: Capture stream: // Screen recording: const stream = await navigator.mediaDevices.getDisplayMedia({ video: { mediaSource: 'screen' }, audio: true // Capture system audio (Chrome) }); // Microphone only: const stream = await navigator.mediaDevices.getUserMedia({ audio: true, video: false }); Start recording: const recorder = new MediaRecorder(stream, { mimeType: 'video/webm;codecs=vp8,opus' // Chrome/Edge // Firefox: 'video/webm;codecs=vp9,opus' }); const chunks = []; recorder.ondataavailable = (e) => chunks.push(e.data); recorder.onstop = () => { const blob = new Blob(chunks, { type: 'video/webm' }); const url = URL.createObjectURL(blob); // Create download link from url }; recorder.start(1000); // collect data every 1 second Video codec: VP8 or VP9 (WebM container) Audio codec: Opus (efficient speech/music codec) Container: WebM (.webm)

Frequently Asked Questions

Why does the recording save as WebM instead of MP4?▼

WebM is the format natively supported by the browser's MediaRecorder API. MP4 (H.264/AAC) encoding requires hardware acceleration or licensed codecs that browsers don't expose to web applications. WebM is an open-source format that plays in Chrome, Firefox, Edge, and most modern media players. To convert WebM to MP4 for broader compatibility (especially for iPhone/iOS users who can't play WebM), use a desktop converter like HandBrake, VLC, or FFmpeg after downloading.

Can I record audio from other applications while screen recording?▼

Chrome on Windows can capture system audio (all application sounds) when you select 'Share audio' in the screen share dialog. Chrome on macOS cannot capture system audio without a virtual audio driver (like BlackHole) due to macOS privacy restrictions. Firefox does not support system audio capture — microphone audio only. If you need to record application audio on macOS, installing a loopback virtual audio device and selecting it as the input enables system audio capture.

Is there a recording length or file size limit?▼

There is no hard time limit imposed by the API, but practical limits apply: long recordings consume browser memory for buffering, and very long sessions (over an hour) may cause browser performance issues or memory warnings. The final WebM file size grows with duration and resolution — a 1080p 30-minute screen recording may be 500 MB to 1+ GB. For long recordings, ensure your device has sufficient RAM and storage. Consider breaking long recording sessions into multiple shorter files.

Do I need to install any software or browser extension?▼

No installation or extension is required. The MediaRecorder API and getDisplayMedia() are built into Chrome, Firefox, Edge, and Opera on desktop. Safari added MediaRecorder support in version 14.5, making it available on macOS and iOS. The permissions system is built into the browser — you'll only see a system prompt to authorize screen or microphone access, which is standard browser security behavior, not a software installation.

Is my screen recording private — is it uploaded anywhere?▼

Yes, completely private. The MediaRecorder API captures media streams locally in your browser's memory and compiles them into a Blob object that is downloaded directly to your device. No video data is transmitted to any server. The recording stays entirely on your computer. This makes it safe for recording sensitive content like internal business data, personal communications, or confidential software demonstrations.

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