a Chrome extension to see other users browsing the same websites as you
I was once reading some comments on HN, and someone was talking about a Chrome extension they had made for themselves to write memos/notes on any website they browsed. I thought this was brilliant! This idea immediately clicked in me, and my first thought was: "Why not make it so others can see your notes as well?". And soon it transformed into something much more complex where users could not only write notes, but also interact directly with other users of the extension through chat, gis, and cursors! It took me a few weeks, but I was able to read through docs, work on the extension…
In plain words
This Chrome extension shows users who else is browsing the same websites in real time. Users can write notes on any webpage and see notes from other extension users on those same pages. The extension also enables direct interaction through chat, shared cursors, and GIFs, turning individual web browsing into a collaborative social experience. It is designed for people who want to connect with others viewing the same content simultaneously.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I was once reading some comments on HN, and someone was talking about a Chrome extension they had made for themselves to write memos/notes on any website they browsed. I thought this was brilliant! This idea immediately clicked in me, and my first thought was: "Why not make it so others can see your notes as well?". And soon it transformed into something much more complex where users could not only write notes, but also interact directly with other users of the extension through chat, gis, and cursors! It took me a few weeks, but I was able to read through docs, work on the extension itself (content script and service worker), socket.io, node, build up a website, publish it in the Chrome store. I've introduced it to my coworkers and a few other devs, and so far, each one of them came up with a different usage for the extension, but loved the idea of adding a social aspect to browsing. I thought it would be great sharing it with everyone around here and gather feedback from the HN crowd!
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