> A motion detection recorder for Windows webcams that saves MP4 clips starting before the movement, with an optional alarm and a phone view over an… # Webcam Motion Detector for Windows Turns any webcam into a motion-triggered recorder. Each clip begins a few seconds before the movement, so you see what set it off. One payment. No subscription. 14-day money-back guarantee. 3.6 0 to 10 seconds of head start ### Clips that start early The last few seconds are always kept in memory, so a saved clip opens before the motion began rather than just after. Low · Medium · High ### Sensitivity for the space Low waits for something large crossing a room. High picks up a hand at the edge of a doorway. MP4 at the camera's resolution ### Clips that play anywhere Saved as ordinary H.264 MP4 files in a folder you choose, at the camera's own resolution or a fixed 480p, 720p or 1080p. ## See it in action ![The full camera view with the controls tucked out of the way](https://evlarsoft.com/apps/webcam-motion-detector/s3.jpg) The picture fills the window. ![A saved clip that opens before the person walks into frame](https://evlarsoft.com/apps/webcam-motion-detector/s6.jpg) Up to ten seconds from before anything moved. ![The settings page with camera, sensitivity, clip length, folder and alarm options](https://evlarsoft.com/apps/webcam-motion-detector/s5.jpg) Every setting on one page. ![Choosing between connected cameras by name](https://evlarsoft.com/apps/webcam-motion-detector/s7.jpg) Choose a camera once and it stays chosen. ![The app watching from the notification area with its window closed](https://evlarsoft.com/apps/webcam-motion-detector/s4.jpg) Keeps watching from the notification area. ![A phone showing the live camera with buttons to start and stop watching](https://evlarsoft.com/apps/webcam-motion-detector/s2.jpg) A live view on your phone, straight from your PC. ## How a pre-motion clip works Most motion recorders start recording at the moment they notice movement, which means the clip often begins with someone already halfway across the frame. Webcam Motion Detector keeps a rolling buffer of the last few seconds at all times. When motion is detected, that buffer becomes the start of the clip. Recording then continues for as long as there is movement, plus a run-on you choose, from 5 seconds to 2 minutes after the last change. A person who pauses and moves again within that time stays in one clip instead of three. Motion is measured as how much of the picture changes between frames. Turn on the outline while you set it up and you can see exactly what it reacted to, then raise or lower the sensitivity until a passing shadow is ignored and a person is not. ### How to set up webcam motion detection in Windows Webcam Motion Detector works with any camera Windows can see, built-in, USB or a capture device. A few settings on one page decide what counts as motion and what gets saved. - Choose the camera by name. The app remembers it across restarts. - Set the sensitivity to Low, Medium or High, and turn on the outline to see what it reacts to. - Set the head start, from 0 to 10 seconds, and how long it keeps recording after the last movement, from 5 seconds to 2 minutes. - Pick the folder for clips, whether they are named by date and time or numbered, and whether an alarm sounds. - Start watching, then close the window. It keeps watching from the notification area. ### Watching your webcam motion detector from a phone Scan the code in the app with your phone's camera and the phone shows the camera live, with no app to install and no account. From that page you can start or stop watching, see when motion last happened with a snapshot of it, and see how many clips your PC has saved since the app started. On the same Wi-Fi as your PC the picture runs at about 15 frames a second, and a few a second on mobile data. While the phone view is open, the app on your PC says "Watched on phone", so nobody in the room is watched without knowing. ### Where a webcam motion detection recorder keeps its clips Clips are saved as ordinary H.264 MP4 files in a folder you choose. They play in anything, and you can keep them, move them or delete them like any other file. Each clip is recorded at the camera's own resolution, or at a fixed 480p, 720p or 1080p if you prefer. A mirror switch flips the picture for a camera pointed back at you. ### Limits to know before you rely on it Clips are video only, with no sound. The app keeps your PC awake while it is writing a clip and lets go when it finishes, so set Windows' own sleep timer if the PC needs to stay awake between clips. The phone buzzes on motion only while the phone page is open. Close it and your PC keeps recording as usual. Windows may also ask you once, in Settings, to allow camera access for desktop apps, and that is the only permission involved. ![](https://cdn.evlarsoft.com/related/v1/icons/webcam-motion-detector.png)**Webcam Motion Detector**Security One payment. No subscription. 14-day money-back guarantee. - **3.6_★_**Rating - **2.7 MB**Download size - **2.2.5**Updated Oct 2026 - **2023**First released - **Win 10 & 11**Works on - **English**Language - **No account needed, no ads, clips stay on your PC**Privacy ## Get every app with BundlApps Webcam Motion Detector and 304 more EvlarSoft apps in one subscription. [Join the waitlist](https://bundlapps.com/?ref=evlarsoft-app) ## Webcam Motion Detector features - **Clips that start early**A head start of up to 10 seconds from before the motion. - **A run-on you choose**Keeps recording 5 seconds to 2 minutes after the last movement. - **Any camera Windows can see**Built-in, USB or a capture device, chosen by name. - **MP4 clips**H.264 at the camera's resolution or a fixed 480p, 720p or 1080p. - **Three sensitivity steps**Low, Medium and High. - **An outline around what moved**See exactly what the detector reacted to. - **An optional alarm**Sounds when motion starts, at a volume you set. - **A phone view**Live picture, start and stop, and a buzz on motion. - **Keeps watching when closed**Runs from the notification area. - **Private by design**No account, no cloud, no upload and no ads. ## What people use it for ### Watching a room while away Finding out who came into an office, a study or a hallway, with the moment they arrived on video. ### Keeping an eye on pets Seeing what the dog got up to, without hours of empty footage to scroll through. ### A cheap doorway camera Pointing a spare webcam at a door or window and keeping only the clips that matter. ## What people say > ★★★★★ > > “i like it The best I use it every day” > > John, US ## What's new in version 2 - Clips start before the motion, with a head start you set - Works with any camera Windows can see, at its own resolution - An outline around what moved - Remembers your camera across restarts - Keeps watching from the notification area - A phone view: see the camera live, start or stop watching, and get a buzz on motion ## Questions Anything else? [Ask us](https://evlarsoft.com/contact?topic=support&app=Webcam%20Motion%20Detector) ### Does it record sound? No. Clips are video only. ### Where are the clips saved? In a folder you choose, as MP4 files named by date and time or numbered in sequence. ### How does the phone view work? Pair your phone from the app and open the page it gives you. No app to install and no account. The picture goes straight from your PC to the phone over an encrypted connection, and the phone buzzes on motion while that page is open. ### Will my PC go to sleep while it watches? It keeps the PC awake while a clip is being written. Set Windows' own sleep timer if it needs to stay awake between clips. ### Can it start with Windows? Yes, and it can start watching as soon as it opens. ### Which versions of Windows does it run on? Windows 10 (version 1809 or later) and Windows 11. ### Is it a subscription? No. Webcam Motion Detector is a one-time purchase of $1.99, and updates are included. ### How do I get it? Buy it on this page and your license key arrives by email. If the button says Notify me, Webcam Motion Detector is not on sale here yet; leave your email and we will tell you when it is. ## More privacy and security tools from EvlarSoft [ ![](https://evlarsoft.com/apps/passgenie/s1-640.jpg) ![](https://cdn.evlarsoft.com/related/v1/icons/passgenie.png) ### Password Vault Security and privacy An offline password manager. Your logins live in a KeePass file you keep, unlock with Windows Hello, and type into any window with Ctrl+Alt+A. 2FA codes are built in. No account, no subscription. $9.99 · lifetime · 4.0 ](https://evlarsoft.com/apps/passgenie)[ ![](https://evlarsoft.com/apps/desktop-authenticator/s1-640.jpg) ![](https://cdn.evlarsoft.com/related/v1/icons/desktop-authenticator.png) ### Desktop Authenticator Security and privacy Two-factor codes on your PC. Press Ctrl+Alt+Q, type a name, and copy the code or type it into the field you are in. A desktop widget, Google Authenticator import and a Windows Hello lock. $2.99 · lifetime · 5.0 ](https://evlarsoft.com/apps/desktop-authenticator)[ ![](https://evlarsoft.com/apps/passmaker/s4-640.jpg) ![](https://cdn.evlarsoft.com/related/v1/icons/passmaker.png) ### Password Generator & Breach Checker Security and privacy Make strong passwords and passphrases with one click, or press Ctrl+Alt+P to type one into any app. Check a password you already use against known data breaches, sending only 5 characters of its fingerprint. Then open a password export from your browser or password manager and see which of your saved passwords are breached, reused or weak. $1.99 · lifetime · 5.0 ](https://evlarsoft.com/apps/passmaker) More in this category ## Network and web [All 23](https://evlarsoft.com/apps/category/network-and-web) - [ARP Table Manager](https://evlarsoft.com/apps/arp-table-manager) - [Battery Report](https://evlarsoft.com/apps/battery-report) - [Bluetooth Device Scanner](https://evlarsoft.com/apps/bluetooth-detective) - [CPU Core Load Reporter](https://evlarsoft.com/apps/cpu-core-load-reporter) - [DNS Switcher](https://evlarsoft.com/apps/dns-switcher) - [Easy Subnet Calculator](https://evlarsoft.com/apps/easy-subnet-calculator) - [Internet Connectivity Checker](https://evlarsoft.com/apps/internet-connectivity-checker) - [Latency Checker Widget](https://evlarsoft.com/apps/latency-checker-widget) - [Link Maker](https://evlarsoft.com/apps/symbolic-hard-link-maker) - [Link Unshortener](https://evlarsoft.com/apps/link-unshortener) - [Memory Usage Monitor](https://evlarsoft.com/apps/system-memory-reporter) - [Network Adapter Statistics](https://evlarsoft.com/apps/network-adapter-statistics) - [Network Indicator Widget](https://evlarsoft.com/apps/network-indicator-widget) - [Network Monitoring](https://evlarsoft.com/apps/network-monitoring-widget) - [News Ticker Widget](https://evlarsoft.com/apps/news-ticker-widget) - [Routing Table Manager](https://evlarsoft.com/apps/routing-table-manager) - [RSS Keyword Alerts](https://evlarsoft.com/apps/rss-news-alert-notifications) - [Subnet Master](https://evlarsoft.com/apps/subnet-master) - [Subtle Blink Reminder](https://evlarsoft.com/apps/subtle-blink-reminder) - [Taskbar RSS Reader](https://evlarsoft.com/apps/taskbar-rss-feed) - [Tracert Route Tracer](https://evlarsoft.com/apps/tracert) - [Trip Cost Calculator](https://evlarsoft.com/apps/trip-calculator) - Webcam Motion Detector Browse by category [Photos and images _54_](https://evlarsoft.com/apps/category/photos-and-images)[PDF and documents _42_](https://evlarsoft.com/apps/category/pdf-and-documents)[Keyboard and mouse _28_](https://evlarsoft.com/apps/category/keyboard-and-mouse)[Audio and music _27_](https://evlarsoft.com/apps/category/audio-and-music)[Files and disks _24_](https://evlarsoft.com/apps/category/files-and-disks)[Developer tools _18_](https://evlarsoft.com/apps/category/developer-tools)[Display and screen _16_](https://evlarsoft.com/apps/category/display-and-screen)[Productivity _15_](https://evlarsoft.com/apps/category/productivity)[Clocks and timers _14_](https://evlarsoft.com/apps/category/clocks-and-timers)[System and battery _12_](https://evlarsoft.com/apps/category/system-and-battery)[Security and privacy _10_](https://evlarsoft.com/apps/category/security-and-privacy)[Video _8_](https://evlarsoft.com/apps/category/video)[Games _6_](https://evlarsoft.com/apps/category/games)[Desktop widgets _5_](https://evlarsoft.com/apps/category/desktop-widgets)[Health and wellbeing _3_](https://evlarsoft.com/apps/category/health-and-wellbeing)[All 305 apps](https://evlarsoft.com/apps) --- Source: https://evlarsoft.com/apps/webcam-motion-detector