Install SEZ REST & WebSocket Inspector

v2.1.0Get it from the Web Store, or install the package directly from here.

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Direct install without the store. Updates are manual, we will notify you.

The package is not available yet. Please check back soon.

Works in Chrome, Edge, Brave and Opera (version 109 or newer). Takes about a minute.

Download and extract
Download the ZIP and extract it to a folder you will keep, for example Documents/SEZ-Shield. Do not delete this folder afterwards.
Open the extensions page
Copy the address for your browser and paste it into the address bar:
Turn on Developer mode
Use the switch in the top right corner of the extensions page.
Load the extension
Click "Load unpacked" and select the extracted folder (the one that contains manifest.json).
Pin it
Click the puzzle icon in the toolbar and pin the extension.

Your browser may occasionally show a notice about extensions in developer mode. Dismiss it, or use the Web Store version to avoid it.

How to update · Do this when a new version is available.

Download the new ZIP above.
Extract it into the SAME folder, replacing the old files.
Open the extensions page and click the reload icon on the extension, or use the Reload button in the extension popup.
Your settings and license are kept.

Chrome, Edge, Brave or Opera, version 109 or newer. Firefox is not supported yet.

v2.1.009.10.2026