All your cameras, at once
Built-in laptop cam, USB webcams, capture cards — Sentry finds them, lets you pick which ones record, and runs them in parallel.
LIVE · v1.0 · WINDOWS
SENTRY
An always-on webcam recorder that picks every camera you own, runs silent in the background, and wipes old footage on its own. No terminal. No setup. No noise.
1-clickinstall wizard, zero cmd
∞ camsrecord all of them at once
~12 MBfootprint, runs silent
What it is
A quiet guardian for every camera on your PC.
Sentry finds every webcam plugged into your computer, records what they see into small timestamped clips, and deletes the old ones on whatever schedule you set. It's what happens when you strip a security-camera DVR down to the thing you actually need.
Pick your FPS
Dial in 5, 15, 30, or 60 fps per camera. Lower FPS saves disk, higher FPS catches everything.
Sound, if you want it
Record audio alongside video, or keep it silent. Toggleable per device.
Playback at any speed
Review footage at 1×, 2×, 4×, or 8× so you're not wasting an hour watching an empty room.
Self-cleaning
Set a retention window — 1 day, 7, 30, 90 — and Sentry wipes clips older than that automatically.
Runs silent
No icon in the way, no popups, no console window. Starts with Windows, disappears.
One-click install
Download Sentry.
Save the file, double-click it, the install wizard opens. That's it. No command prompt flashes, no "extract this zip," no "run as administrator." Just the wizard.
Download SentryInstaller.htaWindows 10 / 11 · ~20 KB installer · opens directly into wizard
🛡
Windows will warn you. That's normal.
Sentry is a free independent tool and isn't code-signed yet, so Windows SmartScreen shows a blue or yellow warning the first time you run it. It is safe — here's how to get past the warning:
- Browser warning ("file isn't commonly downloaded") → click the ⋮ next to the file and choose Keep.
- SmartScreen popup ("Windows protected your PC") → click More info, then Run anyway.
- "Publisher not verified" → click Open / Yes. The wizard launches.
Prefer to verify first? The installer is plain text — right-click SentryInstaller.hta → Open with → Notepad to read every line before running it.
Sentry · install.log
✓ Detecting cameras_ ✓ Found 2 devices: Integrated, Logi C920 ✓ Applying settings: 30 fps · audio on ✓ Retention: 7 days ✓ Creating desktop shortcut ✓ Starting background service Sentry is watching.
Live tester
Test your webcams. Pick your settings.
This runs right here in your browser. Pick which cameras record, set FPS, playback speed, audio, and how often old clips get wiped. Save it and the installer will use these settings on install.
No camera selected
— fps
Playback preview
This is what 1.0× playback looks like.
Preview shows your most recently detected camera, sped up so you can feel the difference.
How it works
Four steps. Under a minute.
1
Download
Click the button. Save SentryInstaller.hta anywhere.
2
Double-click
The install wizard opens instantly. No terminal, no "run as admin."
3
Confirm settings
Sentry pulls your saved settings from this page. Change anything you want, click Install.
4
Forget it exists
Sentry runs silent in the background. Footage lives in %USERPROFILE%\Sentry.
Your cameras are already there. Put them to work.
Sentry is free. Built by Blackbox Advancements.