I made an open source Chrome extension to notify you of new HN replies

In plain words

This open source Chrome extension notifies users when they receive new replies on Hacker News. Designed for developers and Hacker News community members who want to stay updated on conversations, it integrates directly into Chrome to provide timely alerts. The extension is available on GitHub for installation and modification by users interested in customizing their Hacker News experience.

written from the facts on this page · September 2026

From the sources

HN Notifier is a chrome extension that shows the number of unread comments to your HackerNews thread. One of the issues with HackerNews is that it is difficult to know when someone has replied to your post or comment, thus by missing an opportunity to continue the conversation. - meanands/hn-notifier

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  A Chrome extension to see notifications for comments on your HN threads2021 · chrome.google.com · ▲79
• HR
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  Find HN threads about the page you're browsing2020 · github.com · ▲260

  Web Extension: Easily find Hacker News discussions about the page you're currently browsing. - pinoceniccola/what-hn-says-webext

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  HN Unread Comments v1.1 released (chrome extension)2010 · chrome.google.com · ▲20
• HN
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