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Remove green screen backgrounds with professional chroma key. Adjustable color picker, similarity threshold, and edge blending. Export with transparency (MOV with alpha channel).
Trim and cut videos precisely with frame-by-frame scrubbing. Set start/end points visually, preview clips in real-time, and export trimmed videos instantly. No upload required - runs 100% in browser.
Convert videos between MP4, WebM, OGG, MOV, AVI, and MKV formats. Device presets for YouTube, Instagram, TikTok, iPhone, Android. Quality options from fast to high quality encoding.
Record screen, webcam, or both with audio using our free Screen Recorder, a versatile tool that requires no software installation and works entirely in your browser. Whether you are creating software tutorials, recording bug demonstrations, capturing gameplay footage, recording presentations, producing online course content, or documenting procedures, the Screen Recorder provides flexible recording options without the complexity of desktop applications. The tool lets you choose what to record - your entire screen, a specific window or application, or a browser tab - giving you precise control over what viewers see. The picture-in-picture recording mode lets you overlay your webcam feed on your screen recording, perfect for tutorials and presentations where viewers benefit from seeing both your screen and your face. Audio capture options include system audio (sounds from your computer), microphone input (your voice), or both simultaneously, giving you complete control over the soundtrack of your recording. The tool runs entirely in your browser using the built-in Screen Capture API, eliminating the need for installation, account creation, or complex software. This makes it ideal for quick recordings, emergency documentation, or anyone who wants to avoid cluttering their computer with additional software. The recorded video downloads directly to your computer where you can edit it, upload it, or share it immediately without additional processing steps.
Record step-by-step screen tutorials showing how to use software, navigate websites, or accomplish specific tasks with clear visual demonstration.
Quickly record screen videos demonstrating bugs or issues to send to developers, support teams, or colleagues with complete context.
Record software demos, sales presentations, or product walkthroughs with your voice-over explaining features and benefits to prospects.
Create educational video content for online courses, training materials, or lectures with screen sharing and your face visible simultaneously.
Record gaming footage with your webcam face cam and microphone commentary for YouTube gaming content, streaming, or sharing highlights.
Document standard operating procedures, work processes, or training materials by recording your screen while performing the steps.
Browser-based screen recording is made possible by a set of modern web APIs that provide access to screen content, camera feeds, and audio inputs directly from JavaScript without requiring any plugins, extensions, or native software installation. Understanding these APIs explains both the capabilities and the security model that makes browser recording safe and privacy-respecting.
The Screen Capture API, accessed through the navigator.mediaDevices.getDisplayMedia() method, is the foundation of browser-based screen recording. When called, this API triggers a browser-native permission dialog that lets the user choose what to share: their entire screen, a specific application window, or an individual browser tab. This user-mediated selection is a critical security feature, as no website can access screen content without explicit user consent and ongoing visible indicators. The API returns a MediaStream object containing video tracks (and optionally audio tracks) representing the captured content. For tab capture specifically, the browser can also capture the tab's audio output, enabling recording of web-based presentations, video playback, and audio applications.
The MediaDevices API (navigator.mediaDevices.getUserMedia()) provides access to the user's camera and microphone. Like screen capture, this requires explicit user permission and shows visible indicators when active. Camera streams can be configured with constraints specifying desired resolution, frame rate, and facing mode (front or rear camera on mobile devices). Microphone streams can specify sample rate, channel count, and whether to enable echo cancellation, noise suppression, and automatic gain control, all of which are built into modern browsers as real-time audio processing features.
WebRTC (Web Real-Time Communication) technology provides the underlying infrastructure for handling media streams in the browser. While primarily designed for peer-to-peer video calling, WebRTC's media pipeline is used by screen recording tools to manage stream composition, including combining multiple video tracks (screen and webcam) into a single canvas-based composite and mixing multiple audio tracks (system audio and microphone) into a unified audio stream.
The MediaRecorder API is what actually converts these live media streams into downloadable video files. MediaRecorder accepts a MediaStream and encodes it in real-time into a specified format, typically WebM with VP8 or VP9 video and Opus audio, or MP4 with H.264 video and AAC audio depending on browser support. The API fires dataavailable events periodically, providing chunks of encoded data that can be collected into a Blob and offered as a file download when recording stops. The encoding happens in real-time using hardware-accelerated codecs when available, which is why modern browsers can record high-resolution screen content without significant performance impact.
The security model surrounding these APIs is intentionally strict. Browsers display prominent indicators (typically a colored border or notification bar) whenever screen sharing or camera access is active, making it impossible for a website to secretly record the user. Cross-origin iframe restrictions prevent embedded content from initiating capture without the top-level page's involvement, and the APIs are only available in secure contexts (HTTPS), preventing man-in-the-middle interception of media streams.
No. The screen recorder runs entirely in your browser using the built-in Screen Capture API. No extensions, plugins, or desktop applications are required. Just open the tool and start recording immediately.
Yes. The tool supports picture-in-picture recording where your webcam feed appears as an overlay on your screen recording. This is ideal for tutorials, presentations, and demo videos where viewers benefit from seeing the presenter.
You can capture system audio (sounds from your computer), microphone input, or both simultaneously. System audio capture requires selecting a browser tab or screen share with audio enabled. Microphone audio works with any recording mode.
There is no imposed time limit. Recording length is limited only by your available disk space and browser memory. For very long recordings (over an hour), ensure you have sufficient free space, as video files grow continuously during recording.
All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.