Record your screen
Capture your screen, one window or a tab, with its sound and your voice. The video is made in this tab and never uploaded.
- Nothing is uploaded
- Works offline after first visit
- Open source
- No watermark · limit is your device’s memory; phones hold less
Records your screen, a window or a browser tab, with sound and your microphone if you choose, and saves the video. It is free, and your recordings are not uploaded: everything runs in your browser on your device. Recordings are built in your device’s memory, so how long you can record depends on the device. After one visit and a short wait the page works offline.
Done
Open the network tab. Your files never appear in it.
Add files and run the tool to see every request this tab makes.
Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.
How it works
- Choose whether to record the sound from the screen, your microphone or both, then press Start recording.
- Your browser asks what to share: the entire screen, one window or one tab. Pick it and press Share. To include the sound of a tab or the whole screen, tick "Share audio" in that picker.
- Pause and resume as needed, then press Stop and save (or the browser's own Stop sharing). Watch the recording on the page and download it as MP4 or WebM.
In your browser, not on a server
Your browser’s own screen picker (getDisplayMedia) lets you choose what to share, and its built-in recorder (MediaRecorder) writes the video in your tab, as MP4 in Chrome, Edge and Safari or WebM in Firefox. When you stop, Mediabunny (MPL-2.0) copies the video into a fresh file without re-encoding so its length is written and players can seek it.
Compared with upload-based tools: Online screen recorders make you install an extension or desktop app, sign up, stamp a watermark on free recordings, cap them at a few minutes, and upload the video to their servers to share it. Screens show emails, chats, dashboards and customer data. Here the recording never leaves your device.
Verify it yourself. Give the page a short while after one visit to save itself for offline use, then turn off Wi-Fi or switch to airplane mode and run the tool again. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.
Questions
Is my recording uploaded?
No. Your browser records the screen and writes the video in this tab, and the file goes straight to your downloads. There is no account, no server, no watermark and no time limit, and nobody else ever sees what you recorded.
Why is there no sound in my recording?
The sound is only captured when you share it. In Chrome and Edge, tick "Share audio" (or "Also share tab audio") in the browser's picker; a single window cannot share its sound, so share the tab or the entire screen instead. Firefox and Safari do not share screen sound at all, so tick "My microphone" to narrate instead. Not sure the microphone works? Check it first with the mic test.
Is the video MP4 or WebM?
It depends on the browser. Recent Chrome and Edge and Safari record MP4, which plays everywhere; Firefox records WebM. To turn a WebM into MP4, use Video to MP4 afterwards, and to make the file smaller, use Compress video.
Can I record on my phone?
Not in a web page: phone and tablet browsers do not let websites capture the screen. Use the recorder built into the phone instead (Screen Recording in the iPhone Control Centre, or Screen record in Android's quick settings), then trim or compress the video here.
Is there a time limit?
No. The recording is held in your computer's memory until you save it, so very long recordings at 60 frames per second need a fair amount of free memory. An hour at 30 frames per second is usually a few hundred megabytes to a couple of gigabytes, depending on how much moves on screen.
More video and audio tools
Voice recorder
A voice memo, a voice-over or a quick demo, recorded in this tab and saved as MP3. The sound never leaves your device.
Volume booster
Boost a quiet recording, turn down a loud one, or even out a batch. Done on this device, never uploaded.
Remove background noise
Keep the voice, lose the hiss, hum and fan noise. Cleaned on this device, never uploaded.
Merge audio
Combine songs, voice notes or podcast segments into one file. Done on this device, never uploaded.
Popular conversions
Guides
- How to record your screenA quick screen recording for a bug report, a tutorial or a demo does not need a downloaded app. Here is how to record it straight from your browser, free.