Local by default
Recordings stay in your browser. ScreenSilo has no upload service, account, or analytics pipeline.
Private screen recording. Record it. Keep it.
Capture a tab, window, or entire screen without an account or an upload. Preview locally, download the WebM, and stay in control of every frame.
No sign-inNo uploadsNo extension trackingManifest V3
From screen picker to saved file.
Native browser APIs, a focused interface, and no service standing between you and the recording.
Pick the right surface
Capture a tab, window, or screen, with optional microphone and available system or tab audio.
Stop without hunting
End a recording from the toolbar popup or the small on-page overlay, then jump straight to preview.
Keep the file
Preview locally, download a WebM, or delete it. The recording remains under your control.
Your recording never needs to leave the browser.
ScreenSilo processes and stores recordings locally. There is no backend account, cloud upload, telemetry endpoint, or broad<all_urls> host permission.
Local processing
Native browser capture and MediaRecorder APIs capture and encode video on-device.
Local storage
Recording chunks and previews are persisted in browser-managed IndexedDB.
Narrow permissions
Manifest V3 permissions support capture, the stop overlay, local state, and recovery.
Inspectable implementation
Inspect the recording lifecycle, message validation, storage, and tests on GitHub.
Capture, preview, done.
Four short steps, then a portable file under your control.
Open
Click ScreenSilo in Chrome, Edge, or Firefox.
Choose
Select a tab, window, or screen and configure audio.
Record
Capture your walkthrough and stop from the page or popup.
Save
Preview the local recording, then download the WebM.
Install ScreenSilo or inspect the source.
Install v0.2.3 from the Chrome Web Store or Firefox Add-ons. For a source build, clone the repository and load the unpacked Chromium extension. GitHub release archives and store publication are separate distribution paths.
Browse the repositoryManifest V3MediaRecorderIndexedDBTypeScriptesbuild
Load it unpacked
Build locally, then add the repository folder to Chromium.
git clone https://github.com/lmn451/screencast.git
cd screencast && pnpm install && pnpm run build- Open
chrome://extensionsor your browser equivalent. - Enable Developer mode.
- Choose Load unpacked and select the repository folder.
ScreenSilo recording questions.
Practical answers before you install or use the code.
What can ScreenSilo record?
Select a tab, window, or screen in your browser's sharing prompt. Microphone audio and system or tab audio are optional; availability depends on the browser, operating system, and selected surface. In v0.2.3, microphone and system audio are mixed into one recorded track.
Which browsers and versions are supported?
The v0.2.3 Chromium package requires Chrome or Edge 116 or later. The Firefox Add-ons listing declares Firefox 109.0a1 or later. The repository also documents unpacked installation in Brave, Opera, and Vivaldi; it does not publish a separate operating-system compatibility matrix.
Can I record my webcam or edit the video in ScreenSilo?
Current documentation covers screen capture and optional audio, without webcam capture, in-app trimming, or format conversion. Preview the recording locally and download a WebM file, then use a separate editor if you need to edit or convert it.
Are recordings uploaded or encrypted?
The extension has no upload service and does not send recordings to its developer. Recordings remain in browser-managed IndexedDB until you delete them or browser data is cleared, including according to the browser's extension-removal behavior. ScreenSilo does not encrypt them at rest. Downloading does not delete the browser copy, and downloaded copies remain outside the extension.
Does ScreenSilo track me?
The extension has no analytics pipeline and does not send capture data to its developer. The product website is separate and loads site analytics; the privacy-policy page disables site analytics. Sharing a downloaded recording through another app is governed by that app's behavior.
Sources and review.
Reviewed by lmn451 on .
Version 0.2.3 was released on 11 September 2026. Store compatibility metadata and available capture/audio sources are browser-specific. This product page loads website analytics; the extension does not, and the privacy-policy page disables them.