Check. Tap. Locked.
A safety blanket for forgetful users.
The problem
You walk away from your desk — a meeting, a coffee, a quick errand — and halfway there the doubt hits: did I lock my PC? In an open-plan office, or anywhere personal data is on screen, that question matters. Walking back is annoying; not walking back is worse.
How it works
- Check — open the app on your phone and see at a glance whether your PCs are on and locked: green (locked), orange (unlocked), grey (offline).
- Tap — one of them left open? One tap on the button.
- Locked — the agent on your PC locks the screen and confirms right back, within a second.
What you need
LockPing has two halves: a small agent on your PC, and the app on your phone. The agent is free and open source; the app runs in any browser and can be installed like a native app.
The app
Open it in your browser and add it to your home screen — it works on Android, iPhone and desktop alike. The Android version is available on Google Play.
The agent for Windows
Download the installer and run it. It installs for your user only (no administrator rights needed), adds a start-menu entry, starts with your session and puts an icon near the clock.
Windows may still warn you. The installer is code-signed (publisher: RM-Worx, via Azure Trusted Signing), so the "unknown publisher" warning is history. SmartScreen may still show its blue "Windows protected your PC" screen for a while, simply because the software isn't widely installed yet — that reputation grows with every install. If it appears, choose "More info" and then "Run anyway". The agent's full source code remains public, so you can verify exactly what it does.
The agent for Linux
Packages for Fedora, RHEL and openSUSE (.rpm) and for Debian, Ubuntu and Mint (.deb). After installing, run lockping-agent run -pair once to show the QR code, then enable it permanently with systemctl --user enable --now lockping-agent — or simply use the "Start automatically" button in the control panel. ARM64 builds and plain tarballs are on the releases page.
The agent's control panel
After installing, you manage the agent from a small control panel in your browser. It runs purely locally on your own PC and cannot be reached from outside.
- Open it via "LockPing Agent" in your start menu — if the agent isn't running yet, that entry starts it first and then opens the panel. On Windows you can also reach it through the LockPing icon near the clock.
- At the top you see the name of this PC, whether it is locked, whether the relay connection is fine, the agent version and how long it has been up.
- "Start automatically" makes the agent start with every sign-in; the same button switches it off again. "Stop agent" shuts it down cleanly.
- "Show QR code" produces the pairing code you scan with the app — valid for five minutes, single use.
- At the bottom is the list of paired devices with the date they were paired, and an "unpair" button per device: that withdraws trust immediately, which is exactly what you want if you lose a phone.
- The panel speaks English, Dutch and French; switch at the top right.
Pairing
Open the agent's control panel and click Show QR code. Scan it in the app under Pair a PC → Scan QR code — on recognition it pairs immediately. No camera? Copy the text code below the QR and paste it. The two devices then exchange public keys; from then on they recognise each other — without any account, and without anyone in between being able to read along.
Privacy and security
- No accounts. Your phone and PC recognise each other through key pairs generated on your own devices; the private keys never leave them.
- End-to-end encrypted. The relay that passes messages along sees only encrypted blobs.
- Deny by default. The agent ignores anything that is not a properly encrypted message from a paired device.
- One job, done well. There is deliberately no remote unlock, no screen access, no file access, no telemetry and no ads.
- Open source. The agent is MIT-licensed and public on GitHub — because you should be able to read what a program with locking powers actually does.
Lock Karma
A wink on top of the feature: every check counts. Found locked is a green point, found unlocked a red one, and locking through the app counts as a rescue. The gauge runs from Swinging Door to The Bunker — and only a spotless streak reaches The Bunker. Scores stay on your own device; there is no leaderboard on a server.
Status
Windows and Linux are supported. macOS is deliberately out of scope. The web app is live, the Android app is on Google Play, and an iOS version may follow later.
More on the product site: lockping.rm-worx.be