Nicheloom visits: 58,094 all-time · 7,637 in the last 7 days

The opportunity tracker for new startups.

Today: 1,953 launches · Niche of the day: specialized calculation tools · See what launched today →

I put HN discussions next to the article where it belongs

Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.

Want to reach these readers? Sponsor an issue.

It it always bugged me when I read or share an article, the discussion lives separately from the article. I imagined being able to add Google-Docs or Notion style comments on any website. We save a snapshot of the website and allow adding discussions that live side-by-side and directly reference parts of the article.HN articles are automatically indexed in https://cooo.link/hackernewsand you can add any website, PDFs on https://cooo.link/Built with SvelteKit, SingleFile(for archiving page), Railway. Solo dev. Would love feedback if you found it interesting! Thanks

HN · launched Mar 4, 2026 · 8 upvotes (top 51%) · 0 views

Niche: browser extensions · 257 launches, 17 in the last 7 days ▼ -39% · Explore this niche →

Category and tags

  • Horizontal
  • Search & retrieval
  • Prosumer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

Yes This is essentially an iframe/snapshot proxy viewer paired with a commenting system linked to DOM element selectors and text ranges, easily built with standard web tooling.

Discussion

No comments on this launch.

Competitors

Other products that read as similar to this one : 138 launches clear the similarity bar, closest 8 shown.

Attention rank: #70 of 139 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 118 days after the earliest competitor.

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.