Apps like AZ Screen Recorder exist because the moment you need to capture a screen is rarely the moment you planned for it. A bug that only shows up once, a walkthrough a teammate needs right now, a browser tab doing something you want to prove happened. Installing an app for a five-minute job feels like overkill, especially on a work laptop or a borrowed machine. So we built CaptureDeck, a free screen recorder that runs entirely in your browser. Click record, pick what to share, and download the file when you stop. Nothing installs, nothing uploads.
Use CaptureDeck now
Click “Start recording,” choose what to share in the picker your browser shows, and click “Stop recording” when you are done.
How to use it
CaptureDeck defaults to recording your entire screen, with microphone audio switched off, but you can change either before you start. Click “Start recording” and your browser opens its own native screen-share picker: choose your whole screen, a single application window, or a browser tab, then confirm. CaptureDeck cannot see or change that choice, it is your browser’s own permission dialog.
Once you confirm, a pulsing indicator and a running timer show that capture is live. Click “Stop recording,” or use the “Stop sharing” control your browser adds to the page, and CaptureDeck immediately builds a downloadable .webm video from what it captured. Click “Download recording” to save the file to your device, then “Record another” to start a fresh capture. This matters for privacy as much as convenience: the recording is built and held entirely in your browser’s memory. It is never sent anywhere, and CaptureDeck has no server to send it to even if it wanted one. Your last quality, audio, and area settings are remembered on your device for next time.
How it compares to AZ Screen Recorder
CaptureDeck keeps the one job most people actually reach for a screen recorder to do: capture your screen, a window, or a tab, and get a video file out the other end, without installing anything. That covers the “I need to record this once, right now” moment cleanly, on a laptop, a Chromebook, or any device where adding another app is not worth it.
AZ Screen Recorder goes considerably further, as a dedicated Android app should. It captures internal system audio directly rather than relying on browser permissions, records at higher bitrates with no length limit, overlays your front camera for reaction or tutorial footage, and includes a built-in trimmer and editor so you never have to leave the app. None of that fits inside a browser tab you are likely to close in a few minutes, so we left it out on purpose.
Our honest take: use CaptureDeck when you need one quick recording on a device you are not going to install anything on, especially a desktop or laptop. Install AZ Screen Recorder if you record regularly, want internal audio and higher bitrates on your phone, or need in-app editing. If you want to compare it against other Android recorders first, our roundup of the best screen recorder apps for Android tested seven of them.
Get the full app
AZ Screen Recorder is free on Android and adds internal audio capture, higher bitrate recording with no time limit, a front-camera overlay, and a built-in editor that CaptureDeck does not attempt to replicate.
Frequently asked questions
Does the recording get uploaded anywhere?
No. CaptureDeck records and builds the video file entirely inside your browser using standard Web APIs. Nothing is sent to a server at any point, and CaptureDeck has no server to receive it even if it wanted to. The file only leaves your device when you click “Download recording” and save it yourself.
Can I record my screen online without installing an app?
Yes. CaptureDeck runs in any modern desktop browser that supports screen capture, including Chrome, Edge, and Firefox. There is nothing to install and no account to create. Screen capture is a desktop-oriented browser feature, so it may not be available on some mobile browsers; CaptureDeck detects this and tells you plainly instead of showing a broken button.
Is this the official AZ Screen Recorder app?
No. CaptureDeck is an original tool we built, inspired by the everyday need AZ Screen Recorder solves. It is not affiliated with, endorsed by, or connected to its publisher. For internal audio capture, higher bitrates, and in-app editing, get the app from the store links above.
Why did my browser show its own picker instead of CaptureDeck asking directly?
Browsers require this by design so that no website can capture your screen without you explicitly choosing what to share, every single time. CaptureDeck cannot see or influence that choice; it only receives the video after you confirm it in your browser’s own dialog.
Is it free?
Yes, completely free, with no limit on how many recordings you make and no watermark added to the video.
