Screen Recorder
Record your screen, window, or browser tab with audio. No installation required - works directly in your browser.
Click "Start Recording" to select screen
No Installation
Works directly in your browser. No software to download.
Audio Recording
Record system audio and/or microphone with your screen.
100% Private
Your recordings never leave your computer. Completely secure.
Browser Compatibility
Screen recording works best in Chrome, Edge, and Firefox. Safari has limited support. System audio recording requires Chrome or Edge.
How to Record Your Screen Online
- Choose your audio. Tick System Audio for sound playing on the computer, Microphone for your voice, or both. Leave both unticked for a silent video.
- Pick a quality. The Quality menu offers High (1080p), Medium (720p, the default) and Low (480p). Keep 3-Second Countdown ticked if you want a moment to get ready.
- Click Start Recording. Your browser opens its own sharing window. Choose a tab, a window or your entire screen, switch on the share-audio option there if you want computer sound, and click Share.
- Record. After the countdown a red timer appears on the preview. Use Pause and Resume to skip parts; paused time is left out of the video and the duration.
- Stop. Click Stop, or the browser's own "Stop sharing" button, which ends the recording in the same way.
- Check and save. Play the result, check the duration and size under Recording Complete, then click Download Recording.
Format, Quality and File Size
This recorder uses two features built into desktop browsers: screen capture, which asks you what to share, and MediaRecorder, which encodes the picture and sound into a video file. The page tries VP9 video with Opus audio first, then VP8, and saves the result as a WebM file. There is no watermark, no sign-up and no upload: the finished video exists only as a file link inside your browser tab until you download it.
Each quality setting asks the browser for a frame size and sets a target video bitrate. You may get a smaller frame, for example when sharing a small window, and screens that barely change usually compress well below the target, so treat these sizes as a rough ceiling.
| Quality | Frame size | Target bitrate | Approx. max per minute |
|---|---|---|---|
| High | 1920×1080 | 5 Mbps | 36 MB |
| Medium | 1280×720 | 2.5 Mbps | 18 MB |
| Low | 854×480 | 1 Mbps | 7 MB |
Worked example: a 10-minute tutorial at Medium quality is capped at about 2.5 megabits × 600 seconds ÷ 8 = 187.5 million bytes, which the tool displays as roughly 179 MB, plus a little for audio. The same video at Low would be around 72 MB, which is easier to email or share. Choose High when viewers must read small text such as code or spreadsheets; Low usually suffices for slides with a voice-over.
Recording Audio: What Each Browser Allows
Screen video works in current desktop Chrome, Edge, Firefox and Safari, but sound is where browsers differ. Tab audio is the sound of one browser tab, such as a YouTube video or an online class. System audio is everything your computer plays. The microphone works everywhere the recorder works. When you tick both System Audio and Microphone, the page mixes them into a single soundtrack so both end up in the file.
| Browser | Tab audio | System audio | Mic |
|---|---|---|---|
| Chrome / Edge on Windows or ChromeOS | Yes | Yes, when sharing the entire screen | Yes |
| Chrome / Edge on macOS | Yes | Only in recent versions on macOS 14.2+ | Yes |
| Firefox (desktop) | No | No | Yes |
| Safari on Mac (18.4+) | No | No | Yes |
| Phone browsers | Screen recording not available | ||
Support changes between versions, so your browser's sharing window is the final word: if it offers a share-audio switch, turn it on. Older Safari versions can share the screen but cannot create WebM files, so recording there stops with "Could not start recording".
On a phone? Android and iPhone browsers do not offer screen capture to websites, so use the phone's built-in recorder instead (see the FAQ below).
Converting WebM to MP4
WebM plays in Chrome, Edge and Firefox, in VLC, and uploads to YouTube as it is. Some editors, phone galleries and messaging apps expect MP4 instead. This page cannot write MP4, so convert afterwards with HandBrake, VLC (Media › Convert / Save) or the free command-line tool FFmpeg. This FFmpeg command re-encodes to widely supported H.264 video and AAC audio:
ffmpeg -i screen-recording.webm -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -c:v libx264 -crf 23 -pix_fmt yuv420p -c:a aac screen-recording.mp4
- The
scalepart rounds the frame to even numbers. Window recordings can have an odd width or height, and the H.264 encoder refuses those with "width not divisible by 2". -crf 23sets quality; a higher number such as 28 gives a smaller file.- If a player cannot show the length of a recording or will not let you skip ahead, rewrite the file without re-encoding:
ffmpeg -i screen-recording.webm -c copy fixed.webm. Browsers write WebM while recording, and some players need the index this step adds.
Where a Browser Screen Recorder Helps
- Reporting a bug. A 30-second clip of the steps and the error message tells a developer more than a long phone call. If you manage a website or app with an outside team, such as a web development partner, send the clip with your ticket.
- Training staff. Record once how to post a sale, raise an invoice or run a report in your office software, narrate it with the microphone, and share the file with every new hire.
- Freelance deliveries. Send a client a short walkthrough of a finished website or design, even from a shared office PC where you cannot install software.
- Tutorials for YouTube. Record at High for readable text, then save the thumbnails of similar videos with the YouTube thumbnail downloader to compare how they frame their cover. For still screenshots of the same steps, shrink them with the image compressor before adding them to a document.
- Online classes. Share the class tab with tab audio to keep a copy for revision, after asking the teacher and following your school's recording rules.
Tips and Troubleshooting
- "Permission Required" appears. You cancelled the sharing window or it was blocked. On a Mac, also allow your browser under System Settings › Privacy & Security › Screen Recording (called Screen & System Audio Recording on newer macOS), then restart the browser.
- "Browser Not Supported" or a greyed-out button. Your browser does not offer screen capture, which is normal on phones and very old browsers. Switch to a current desktop browser.
- Echo in the recording. With both System Audio and Microphone on, speakers leak into the mic. Wear headphones.
- Test first. A blocked microphone does not stop the recording, so make a 5-second test and play it back before a long session. Keep this tab open until you have downloaded the file.
- File date. The download name uses today's date in UTC, so a recording made shortly after midnight in Pakistan or India may carry the previous day's date.
Frequently Asked Questions
Is this screen recorder free, and does it add a watermark?
Yes, it is free, needs no sign-up and adds no watermark or logo. The page saves exactly what your browser captures, so the file you download is your screen and nothing else.
How do I record my screen with sound?
Tick System Audio, Microphone or both before clicking Start Recording. For computer sound you must also switch on the share-audio option in the browser's sharing window; Chrome and Edge offer it when you share a tab, and when you share the entire screen on Windows or ChromeOS. Firefox and Safari can record your microphone but not tab or system sound.
Why does my screen recording have no sound?
Usually the share-audio switch in the browser's picker was left off, you shared something your browser cannot capture audio from, or microphone permission was blocked. If the microphone is blocked the recording still starts, just without your voice, so allow the microphone in the site settings next to the address bar and record again.
Can I record my phone screen with this tool?
No. Mobile browsers such as Chrome on Android and Safari on iPhone do not support the screen-capture feature this page relies on. Use the phone's built-in recorder instead: Screen Recording in Control Centre on iPhone, or the Screen record tile in Quick Settings on Android 11 and later (the name varies by brand).
What format is the recording, and how do I convert WebM to MP4?
Recordings are saved as WebM, normally VP9 or VP8 video with Opus audio depending on what your browser supports. To get an MP4, re-encode the file with a desktop tool such as FFmpeg, HandBrake or VLC; a tested FFmpeg command is given on this page.
Is there a time limit on recordings?
The page sets no time limit. The whole recording is kept in your browser's memory until you download it, and at High quality the target bitrate works out to roughly 2 GB per hour, so for long lectures choose Medium or Low, or record in parts.
Where is my screen recording saved?
Nowhere until you click Download Recording. Your browser then saves it, usually to the Downloads folder, with a name like screen-recording-2026-09-28.webm. If you close the tab or click New Recording before downloading, that recording is gone.
Are my recordings uploaded to a server?
No. The video is produced by your browser's built-in MediaRecorder and turned into a local file link; the tool's code contains no upload step. Because nothing reaches our server, we also cannot recover a recording you did not download.