Unlimited Screen Recorder
No installation required. Pure frontend technology. Supports mixing microphone audio. Direct disk writing prevents memory crashes during long recordings.
Recording Settings
Memory Mode Only (Unstable for long recordings)
Audio Source
System Audio Setting
To record system audio, please check 'Share system audio' in the popup window after clicking 'Start Recording'.
Mix your voice narration into the video
00:00
File Size: 0 B
Preview will appear here
Browser Limitation
Your browser does not support the File System Access API. Recording will be stored in memory, which may cause crashes if recording is too long. Chrome or Edge is recommended.
Features
- Unlimited Duration: Uses stream writing technology to save video directly to disk, bypassing memory limits.
- Audio Mixing: Supports synchronous recording of system audio and microphone, perfect for tutorials or game streaming.
- Privacy: Pure client-side processing. Video data is processed locally and never uploaded to any server.
- Anti-Sleep: Automatically enables Wake Lock during recording to prevent screen sleep interruptions.
Instructions
- Check 'Record Microphone' if you need narration.
- Click the 'Start Recording' button.
- A save dialog will appear. Choose a location to save the
recording.webmfile. - In the browser's 'Choose Screen to Share' window:
- To record computer sound, ensure 'Share system audio' is checked (bottom left).
- Select the Entire Screen, Window, or Tab you want to record.
- Recording started! Click 'Stop Recording' anytime to finish and save automatically.
Privacy & Security Statement
Your data security is our top priority. This tool uses Client-side Computing technology, meaning all processing happens instantly on your device (phone or computer).
This means: No content you enter is ever uploaded to the internet or our servers. Whether it's confidential documents, private diaries, or code, you can safely paste and process it here.