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YaCy: Decentralized Web Search

yacy.net Software & code Software projects Web & internet Candidate
Screenshot of yacy.net captured 2026-07-20
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Resurfaced independently across 5 calendar years, with breakout response in 2 of them.

submissions
8
submitters
8
observed span
2011–2019
peak thread · 29 comments
105 pts
latest 20+ return · 2016-09-06
101 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

I looked at YaCy not too long ago. It's an interesting technology but needs an economic incentive to work as a Google replacement, I think. If system activity was (carefully and judiciously) tied to cryptocurrency payouts it'd probably experience hockey-stick growth.

chipsy·105-point thread·

Peer-to-peer Information Retrieval is one of those old research topics that face the difficult to solve problem of scalability. YaCy is yet an early contributor to this research but we've yet to make something to my knowledge that gives comparable results to centralised search engines, is fast and scales well.

This project has been around for years (created in 2003 according to wikipedia). In fact I submitted it 3 years ago. [0] It's awesome but not Show HN (unless you made it) [0] https://news.ycombinator.com/item?id=8746883

This is the main reason I would support this search engine. Because it's anti-censorship and hard to stop. They would still need to make it great, but I'm listening.

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
235

reference only — not used in Hall rules or ranking

Total comments
57

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2011-11-29A Decentralized, Peer to Peer Search Engine, hard to stop, censor or corruptdbingham41
2014-02-22Free peer-to-peer Web Search by the people, for the peopledandelion_lover30
2014-05-07YaCy: Web Search by the people, for the peopledredmorbius20
2014-06-05Decentralized Web Search Enginezobzu20
2014-12-13YaCy: Decentralized Web SearchFirst breakout · Best threadchatmasta10529
2016-09-06YaCy: a free distributed search engineLatest 20+ point returne1929300110124
2018-05-17Show HN: YaCy – The Peer to Peer Search Enginesammatilda163
2019-04-08YaCy – Decentralized Web Searchdroffel20