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Dev tools · August 14, 2023

LR

Little Rat – Chrome extension monitors network calls of all extensions

Hi HN I needed a way to monitor network calls made by chrome extensions so I made a small extension. You can install it by dropping the zip or crx into the extensions page. It'll be on the chrome store whenever/if it gets through the review. Hopefully it's useful to others. https://github.com/dnakov/little-rat https://twitter.com/dnak0v

In plain words

Little Rat is a Chrome extension that monitors and displays network calls made by other installed extensions. It allows users to inspect HTTP requests and network activity from any extension running in their browser. The tool is intended for developers and users who want to understand or audit what data their extensions are transmitting. Installation is available via direct file upload to Chrome's extension management page, with Chrome Web Store availability pending review.

written from the facts on this page · September 2026

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