My recommendation engine for Hacker News
Hi! I’m Julien and I built a recommendation engine for Hacker News. I feel like this website is a gold mine. Every day, I find some very interesting stories about a topic. And sometimes, I want to find other stories covering that same topic but I can’t. Hacker News has years of history of awesome discussion and ressources. Unfortunately, I think HN Algolia isn’t helpful in searching these old threads. As a student, I want to learn a lot from this website. This is why I created HN Recommend. Input a sentence or the URL of an article, and get the most popular and similar posts from Hacker…
My recommendation engine for Hacker News launched on June 19, 2023 with 314 votes, #78 of 4,655 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
HN Recommend is a search tool for Hacker News that helps users find related articles and discussions from the site's archive. Users input a sentence or article URL to discover popular and similar posts on the same topic. Built by indexing over 100,000 Hacker News articles using embeddings and Faiss, it addresses limitations in existing search methods. The tool is designed for students and researchers who want to explore Hacker News's historical discussions and resources more effectively.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi! I’m Julien and I built a recommendation engine for Hacker News. I feel like this website is a gold mine. Every day, I find some very interesting stories about a topic. And sometimes, I want to find other stories covering that same topic but I can’t. Hacker News has years of history of awesome discussion and…
Does a similar job
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I made a search engine for Hacker News2024 · hackernews.demo.vectara.com · ▲211I love HN but always felt the search with algolia is okay but does have some limitations. Since I work at Vectara I decided to try and create a better search for HN. It's based on data from roughly the last 6 months of HN stories and comments. Would love to hear feedback and how useful this is relative to the existing search.
- ADA discovery-focused search engine for Hacker News2024 · hn.trieve.ai · ▲193
We (Nick, Dens, Denzell, Fede, Drew, Aaryan, and Daniel) have been building HN Discovery, a discovery-focused search engine for Hacker News, in our spare time for the past 6 months and are excited to show it! It adds the following features relative to the existing keyword search interface and preserves the existing ones: - no-JS version (hnnojs.trieve.ai) - site:{required_site} and site:{negated-site} filters - public analytics - LLM generated query suggestions based on random stories - recommendations - dense vector semantic search - SPLADE fulltext search - RAG AI chat - order by…
Hacker Search – A semantic search engine for Hacker News2024 · hackersearch.net · ▲233Hi HN! I'm Jonathan and I built Hacker Search (https://hackersearch.net), a semantic search engine for Hacker News. Type a keyword or a description of what you're interested in, and you'll get top links from HN surfaced to you along with brief summaries. Unlike HN's otherwise very valuable search feature, Hacker Search doesn't require you to get your keywords exactly right. That's achieved by leveraging OpenAI's latest embedding models alongside more traditional indexes extracted from the scraped and cleaned up contents of the links. I think there are many more interesting things…
- HAHN.Academy – Top online courses recommended by Hacker News users2019 · hn.academy · ▲773
HN Academy collects, ranks, and showcases the best online courses and MOOCs that have been recommended on Hacker News.
Exploring HN by mapping and analyzing 40M posts and comments for fun2024 · blog.wilsonl.in · ▲520Accessible end-to-end deep dive of crawling, embedding, projecting, and semantic searching all of Hacker News for my Hackerverse project.
- HCHackerNewsers,com, find other hackers near you2010 · hackernewsers.com · ▲221
There's been lots of discussion recently about finding other HNers to talk to / bounce ideas off / work with, some Google spreadsheets were set up to share details but they were soon vandalised. I had a spare afternoon yesterday (which turned into a long day) and here's the result: http://www.hackernewsers.com/ It's only open to people with HN accounts, it lets you post your biography, location, skills etc. Anyway, I hope you like it and find it useful.
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