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Products that do what What's hot on HN? A visualization of trending topics on HN does
I was curious about the most discussed topics on HN over time, so I started analyzing and categorizing all front-page posts with a simple LLM workflow. The result is an interactive chart that displays the trending topics across different time frames. Although the analysis is still relatively basic, I think it provides an interesting perspective on our community. It will be cool to observe changes over a longer time horizon, such as the rise and fall of topics like web3 and AI.
- 1EH
2024 · blog.wilsonl.in
- 2AT
Hi HN, I spent a few weeks looking at the top HN posts of all time. This included exploration, clustering, creating visualizations, and zooming in on what (to me personally) seems like some of the best discussions on here. Three things in this post: 1- The interesting groups of HN posts 2- The interactive visualizations that you can explore in your browser 3- The data from this exploration -- this includes CSV of the titles as well as the text embeddings of 3,000 Ask HN articles. Blog post about this whole process here: [1] ============ 1- The interesting groups of HN posts From the…
2022
- 3T1
HN has some of the best discussions on the internet, but I don’t love reading 100 comments to find 10 great insights. This site analyzes top HN threads with LLMs and summarizes the key ideas, disagreements, and resources — while preserving links to the original discussion. Useful for revisiting old threads as well. Updated daily, manual-assisted for quality, no spam, fan project only. Would love thoughts from the community. https://hn-discussions.top
Jan 2026
- 4HTHN Trends▲33
2023 · hntrends.net
- 5SH
I built this tool to help me find interesting discussions on Hacker News. I love reading HN discussions almost more than the articles themselves. However, I found that full text search, although highly performant, is not always good at surfacing interesting discussions on a certain topic -- especially if you don't know what to search for exactly. I built this by scraping the most recent ~6 million posts (that's about 2 years of history) and putting the resulting posts and their vector embeddings into Postgres. Let me know what could be improved, and if you'd like a more detailed writeup of…
2024 · searchhacker.news
- 6HH
Hi HN! A few days ago I saw a graph[0] that showed the # of job postings on HN was declining. I started wondering what other trends I could glean from the data, so I created this! You can filter through the top level comments by keyword; for example you can filter by "remote" to see the massive spike around March 2020. Another interesting thing I found is that I can compare hiring across cities. I hope you enjoy! I made it so that the links to your search are sharable so if you have some interesting data you should be able to just link the page you're on! [0]…
2023 · hnhiringtrends.com
- 7CW
Hey HN We loaded a BigQuery dataset of all of Hacker News, every comment, story and user, into camelAI. You can ask questions like: • “When does dang tend to comment during the day?” • “Which domains have gained the most submissions since 2015, year-over-year?” • “How has average comment length changed each January since 2007?” • “Top five users who link to arXiv papers the most.” It's behind a log-in to prevent abuse but free to use for 10 messages. No payment info required. We use OpenAI o3 or Claude sonnet 3.7 for the agent which can be really expensive. Would love feedback especially…
2025 · app.camelai.com
- 8WS
We did a quick side project over the weekend and called it HN Trends (while posting we realized there was an older site with the same name so hopefully there is no confusion). We wanted to see what was trending in terms of keywords (buzzwords, tech, etc) and found a nice API. URL: http://www.hntrends.com Let us know what you think - thanks!
2012
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- 10WH
Hi HN, I built WhatHappened (whathappened.tech) because I have a love/hate relationship with this site. I love the content, but the "wall of text" UI gives me FOMO. I was spending too much time clicking into vague titles ("Project X") or wading through flame wars just to find technical insights. I built this tool to act as a filter. It generates a card for the top daily posts with a few specific features to cut the noise: 1. AI Summaries: It generates a technical TL;DR (3 bullet points) and an ELI5 version for every post. 2. The Heat Meter: I analyze the comment section to visualize the…
Dec 2025 · whathappened.tech
- 11HN
I made a little website with a server that collects only HN submissions with > 500 upvotes chronologically. https://hn.moritz.pm/ It's quite simple because I wanted to learn from the project. But I think it's useful, to get a summary of what was important over the last days. The UI is almost identical to the HN frontpage, you can click on the comments to view the thread and on the username to see the profile. The rest of the cards takes you to the submitted URL.
2024 · hn.moritz.pm
- 12FH
Hey HN. I created this website. https://pj4533.com/hn-overlooked/ It's just a simple web app that discovers overlooked posts on Hacker News. I created it because I was often coming to Hacker News and realizing that I was missing a lot of stuff, and there just didn't seem to be an easy way to surface content that was interesting to me but just didn't bubble up to the top of the page. So I built this. I got the idea a while back, one night when I was recording (you can watch it here, it's pretty funny: https://youtu.be/FDyDb4sX30w?si=E3rby-DaGWA6gy0R ). But I…
2025 · pj4533.com
- 13OW
http://www.hnshowcase.com Moses (nnythm) and I browse Hacker News daily. Show HN posts are some of our favorite parts of HN. We wanted to create a way to browse Show HN articles, even those that might not quite make it to the front page. We created http://www.hnshowcase.com last weekend to make discovering projects posted on HN easier. It searches all "Show HN" posts and generates a thumbnail view for each of them. You can sort by submission date, points, and number of comments, and navigate with left/right or j/k keys. We used the following technologies: HN Search API, Pyramid web…
2011
- 14SH
Jan 2026 · petegoldsmith.com
- 15QAQ&A for HN users▲142
2012 · askolo.com
- 16HS
Hi HN, TL;DR: I made a website that takes all the top stories on HN and categorizes them into one of ten topics of interest using LangChain and GPT-4. I've always liked the idea of getting a personal mix of news tailored to my interests. Hacker News is pretty close to that ideal, which is reflected in the time I spend on here every day. It's a great mix, but playing with LangChain, I got the idea for a weekend project. Roughly speaking most posts on HN fall into one of these categories: * Programming, Software & Computer Science * AI, Data Science & Analytics * Business & Entrepreneurship *…
2024 · hnto.pics
- 17HI
Hi HN, Sharing HN Insights, a webapp I built that highlights trending themes and summarizes discussion threads from the front page. This started earlier this week as a toy project to test out Gemini 3 Pro in aistudio. I found the POC useful, so I decided to productionize it. I've included the original seed prompt below: > Create an app that creates a summary of the comment threads for hacker news front page. The UX should be similar, but clicking the comments instead opens a summary. The summary is generated when clicked so it can gather new threads. To productionize, I used Claude Code and…
Nov 2025 · hn-insights.com
- 182Y
We took the top 3 HN stories every day since October 2006 (~21K stories total), ran topic clustering on them, and visualized how topics rise and fall over time. You can zoom into any period - some patterns are surprisingly clear (AI overtaking startup culture as HN's top topic, crypto's rise and fall, remote work spiking with COVID). Happy to answer questions about the methodology.
Mar 2026 · app.lenzy.ai
- 19SW
2013 · hackernewstrends.herokuapp.com
- 20MB
TL:DR - https://morningbrief.ai/setup Hi, HN -- We're two indie cofounders who bootstrapped a new product to scratch our own itch: there's so much great content out there, but it's hard to find it. Sites like HN serve us like-minded people, but there are many more topics in other non-HN niches. Our idea is this: an email you get once a day, filled with only top articles (posted to HN, Reddit, etc) that match your specific interests. You can specify which interests, and how many links you want. Ranked by our signal score. To start, we built an ingestion engine. In the first few…
2021
- 21TT
Hey HN! I built TopicRadar to solve a problem I had with staying on top of what's trending in AI/ML without checking 7+ sites daily. https://apify.com/mick-johnson/topic-radar What it does: - Aggregates from HackerNews, GitHub, arXiv, StackOverflow, Lobste.rs, Papers with Code, and Semantic Scholar - One-click presets: "Trending: AI & ML", "Trending: Startups", "Trending: Developer Tools" - Or track custom topics (e.g., "rust async", "transformer models") - Gets 150-175 results in under 5 minutes Built for the Apify $1M Challenge. It's free to try – just hit "Try for…
Jan 2026 · apify.com
- 22SP
2011 · skimthat.com
- 23WI
Hi HN, I made Ethos, an open-source tool to visualize the discourse on Hacker News. It extracts entities, tracks sentiment, and groups discussions by concept. Check it out: https://ethos.devrupt.io This was a "budget build" experiment. I managed to ship it for under $1 in infra costs. Originally I was using `qwen3-8b` for the LLM and `qwen3-embedding-8b` for the embedding, but I ran into some capacity issues with that model and decided to use `llama-3.1-8b-instruct` to stay within a similar budget while having higher throughput. What LLM or embedding would you have used within the…
Feb 2026 · ethos.devrupt.io
- 24WS
Lately, I've realized I'm spending a lot of time on HN. I've also realized that my brain uses it as a some sort of "escape" route: whenever I'm dealing with something complicated, my brain defaults to Cmd+T + "news..". So I've decided that I need to stop continuously browsing HN. BUT, I still don't want to miss the relevant news, events and discussions. That's why I've built this very simple, statically generated summary of HN posts (by year, month and week): https://hn-summary.github.io/ I think it's also a good way to filter the noise and only focus on those relevant posts…
2022
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