NVR Viewer allows you to view live feeds from NVRs, DVRs, or IP cameras directly on a Windows device, eliminating the need for the manufacturer's software.

ONVIF for Connectivity

NVR Viewer employs the Open Network Video Interface Forum (ONVIF) standard for connectivity, ensuring compatibility with a wide range of surveillance devices. For Hikvision devices, NVR Viewer features automatic ISAPI fallback, which activates when ONVIF is not enabled, allowing users to still view individual camera feeds seamlessly. You have the flexibility to display all camera feeds simultaneously arranged in a tiled mosaic format, making it easy to monitor multiple feeds at a glance.

Adding Devices is a Breeze

Adding devices to NVR Viewer is straightforward; users simply need to provide the device's IP address, the ONVIF port, along with the required username and password. The software automatically discovers all cameras connected to the selected device, simplifying setup and configuration.

Live Views Only

NVR Viewer is primarily designed for live viewing and does not include recording or video storage. This focus on real-time observation makes it an excellent tool for monitoring security environments.

No Longer Confined to Manufaturer Software

This innovative software eliminates the necessity for manufacturer-specific software, streamlining the viewing process for users.

NVR Viewer Features:

Live View
    ● Individual camera view
    ● Tiled mosaic showing all cameras at once
    ● Drag and drop to reorder tiles — order is saved automatically
    ● Switch between the main and sub-stream for each camera
    ● Full-screen mode
    ● Manual reconnect if a stream freezes
    ● Clear on-screen indication when a camera has no signal

Cameras
    ● Rename any camera without modifying the device
    ● Reset to the name reported by the device at any time
    ● Automatically reconnect if the stream drops
    ● Capture a snapshot (JPEG) of the current frame
    ● Configurable capture folder

Protocols
    ● Discovery via ONVIF (SOAP, WS-Security)
    ● Video streaming via standard RTSP, using TCP transport
    ● H.264 and H.265 / HEVC codecs
    ● No proprietary manufacturer SDKs involved

Security
    ● Credentials encrypted locally using Windows DPAPI
    ● Tied to the Windows account — never synced or uploaded anywhere
    ● Certificates are rejected automatically if they change unexpectedly (HTTPS)
    ● Built-in recommendation to use a view-only device account
    ● Reconnection attempts are capped to prevent triggering account lockouts on the device

Application & System
    ● Works fully offline — no cloud account required
    ● Start with Windows (optional)
    ● Minimize to the system tray
    ● 10 interface languages (German, English, Spanish, French, Italian, Korean, Dutch, Portuguese, Russian, Chinese)
    ● Copy status and error messages to the clipboard with one click

Wide Range of Compatibility

NVR Viewer is compatible with any NVRs, DVRs, or IP cameras that support ONVIF Profile S, ensuring a broad spectrum of compatible devices. When dealing with Hikvision devices, the software provides automatic ISAPI fallback, enhancing connectivity options when ONVIF is disabled.

HTTP or HTTPS Connectivity Management

You can manage your connections through HTTP or HTTPS, adding an extra layer of security. For HTTPS connections, NVR Viewer uses Trust On First Use (TOFU) with certificate pinning during the initial connection, improving protection against man-in-the-middle attacks.

A detailed user guide provides help with adding devices and more.

Geek Verdict

If you're looking for a lightweight tool for viewing only, without the extra services and features manufacturers usually include, NVR Viewer stands out as a viable alternative, providing you with a dependable, efficient way to monitor security cameras in real time.