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
Little Rat – Chrome extension monitors network calls of all extensions launched on August 14, 2023 with 555 votes, #25 of 4,347 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 3 years on.
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
From the sources
🐀 Small chrome extension to monitor (and optionally block) other extensions' network calls - dnakov/little-rat
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