⚠ Use only on systems you own or are authorized to test. This tool performs HTTP-based endpoint discovery.
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Settings are automatically saved when you make changes in the form. Your last used configuration will be loaded when you return.
All form changes are saved to localStorage immediately.
Reset your configuration to default settings or clear all stored data.
Clearing all data will remove your settings and discovered port history. This action cannot be undone.
Cross-Origin Resource Sharing (CORS) is a security mechanism in browsers that restricts web applications from making requests to different domains.
The endpoint is accessible and returned valid NMOS data.
The endpoint is reachable but CORS headers prevent reading the response. The NMOS service likely exists.
The endpoint did not respond within the timeout period.
The port is open but does not appear to host an NMOS service.
NMOS Port Explorer discovers NMOS IS-04/IS-05 endpoints by systematically testing ports on a target device.
Start with the default port list for common NMOS deployments. Use range scanning for comprehensive discovery.
Install NMOS Port Explorer as a standalone app for offline use.
NMOS Port Explorer is installed on this device. You can launch it from your desktop or app launcher.
Open the installed app → click ⋮ menu (top right) → Uninstall
Click the button below to install the app on your device. It will work offline after installation.
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Check if a newer version of the app is available.
A lightweight, browser-only NMOS IS-04/IS-05 endpoint discovery tool for ST 2110 routing.
This tool is a browser-only application. All data is stored locally in your browser's localStorage and is never transmitted to external servers except as described below.
We use Google Analytics to understand how visitors use this tool. Google Analytics uses cookies to collect anonymous information including:
This data helps us improve the tool. No personally identifiable information is collected.
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Your settings and scan history are saved only in your browser's localStorage. This data never leaves your device.
You can:
Questions about this privacy policy? Contact via GitHub.
Last updated: February 22, 2026
License: MIT License (see LICENSE)
Rights: © 2026. All rights reserved. Permissions granted under the MIT License.
Credits: NMOS IS-04/IS-05 specifications by AMWA.
If this tool helped your workflow, consider buying me a coffee ☕
Support via PayPalVersion: 1.0.0
Purpose: Browser-based NMOS IS-04/IS-05 endpoint discovery tool for when DNS-SD is unavailable or broken.
This application runs entirely in your browser. No data is collected, transmitted, or stored on external servers.
Your privacy is fully protected. All operations are performed locally in your browser.
MIT License
Copyright (c) 2026 NMOS Port Explorer
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
⚠ Use only on systems you own or are authorized to test.
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