This online screen recorder runs entirely in your browser with no software or plugins to install. Here is a detailed guide:
Start Recording: Click the "Start Recording" button on the page. The browser will show a selection window letting you choose what to record. You can choose to record the entire screen, a specific application window, or the current browser tab. After making your selection, click "Share" to begin recording.
Audio Settings: Before recording, you can choose whether to record system audio and/or microphone. Checking "Record System Audio" captures sounds played by your computer (such as videos or music). Checking "Record Microphone" simultaneously records your voice commentary. Note that system audio recording is only available in Chrome and Edge.
Control Recording: During recording, you can click the "Pause" button at any time to pause, and click "Resume" to continue. The recording duration is displayed in real-time in the timer at the center of the page. When finished, click "Stop Recording" to end the session.
Preview and Download: After stopping, the recorded video automatically appears in the preview area. You can click the play button to preview the recording. Once satisfied, click "Download Video" to save the WebM file locally. Files are named screen-recording-timestamp.webm by default.
This online screen recorder has a wide range of applications in daily work and study:
Create Tutorial Videos: Teachers and tech bloggers can use this tool to record software tutorials, programming demos, or presentation walkthroughs. Combined with microphone recording, you can narrate while operating, quickly producing clear instructional videos without installing complex screen recording software.
Document Issues and Feedback: When encountering software bugs or needing to show a specific interface to colleagues or clients, simply record your screen and send the resulting video. This is far more intuitive and efficient than screenshots and text descriptions.
Meeting Recordings: During online meetings (Zoom, Teams, Google Meet, etc.), you can record your screen to preserve meeting content. This serves as a backup when the meeting platform lacks recording capabilities or when you don't have recording permissions.
Capture Gaming Moments: Quickly record impressive plays or bug occurrences in games without launching heavy recording software. After recording, you can share directly to social platforms or gaming communities.
WebM Format: WebM is an open, royalty-free video file format led by Google. It uses VP8/VP9 video codecs and Vorbis/Opus audio codecs, typically producing smaller file sizes than MP4. WebM is natively supported by Chrome, Firefox, Edge, and Safari, making it the ideal video format for web environments.
MediaRecorder API: This tool uses the browser's native MediaRecorder API for video recording. As a W3C standard API, it allows web applications to record audio and video streams directly without any plugins. Recorded data is stored as Blob objects in memory and can be played or downloaded immediately. Data never leaves your device.
getDisplayMedia API: The core API for capturing screen content, part of the WebRTC specification. It returns a MediaStream containing the video track of the selected screen, window, or tab. For security, this API must be triggered by user gesture (like a button click), and the browser explicitly prompts the user to select what to record.
Privacy and Security: Because screen recording involves sensitive information, browsers enforce strict security. Recording requires explicit user authorization; recording indicators (like Chrome's red tab border) remain visible; and some sites (like banking or payment pages) may block screen recording to protect user privacy.
Absolutely safe. This tool runs entirely in your browser using the MediaRecorder API to handle recording and encoding locally. Your recordings never leave your device and are not uploaded to any server. It works even without an internet connection.
Recordings are saved in WebM format, an open-source video format widely supported by modern browsers. Chrome, Firefox, and Edge can all play WebM videos natively. On mobile, Android supports WebM out of the box, and iOS Safari 12.1+ also supports WebM playback.
Yes. In Chrome and Edge, when selecting to record the entire screen, you can check the "Share system audio" option to capture system sounds. Firefox currently only supports tab audio recording. Due to browser security restrictions, system audio recording requires native browser support.
There is no strict time limit. Recording duration is mainly constrained by your device's memory and browser performance. Generally, you can record for several hours. For long recordings, it is recommended to save periodically to avoid data loss from browser crashes.
Screen recording relies on the browser's getDisplayMedia API. Currently, Chrome 72+, Firefox 66+, Edge 79+, and Safari 13+ all support this feature. If your browser doesn't support it, please upgrade to the latest version of Chrome, Edge, or Firefox for the best experience.
Due to pure frontend limitations, this tool outputs WebM format. For MP4 conversion, you can use VLC player, FFmpeg command-line tools, or online video conversion websites. You can also use video editing software that supports WebM for post-processing.
Yes. After starting recording, the control panel will show a pause button. Click it to pause recording, and click resume to continue. The timer also pauses during the recording pause.