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AI · alternatives · 2026

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24 alternatives to InsideStack – Find curated tech articles with semantic search

I built InsideStack to make it easier to find high-quality technical and software articles. Why? - The web is flooded with AI-generated content - Businesses are publishing tons of articles with biased content - Search results are often driven by engagement rather than quality. - AI-generated summaries of articles don’t drive traffic back to the original creators InsideStack lets you: - Search across curated RSS feeds with semantic search - Subscribe, bookmark, and follow topics or authors Currently, only a small set of feeds is included, but I am adding more every day. Suggestions for…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Hi 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…

    2024 · hackersearch.net · its alternatives →

  2. 2WS

    We’ve trained a generative AI model to browse the web and answer questions/retrieve code snippets directly. Unlike ChatGPT, it has access to primary sources and is able to cite them when you hover over an answer (click on the text to go to the source being cited). We also show regular Bing results side-by-side with our AI answer. The model is an 11-billion parameter T5-derivative that has been fine-tuned on feedback given on hundreds of thousands of searches done (anonymously) on our platform. Giving the model web access lessens its burden to need to store a snapshot of human knowledge…

    2022 · beta.sayhello.so · its alternatives →

  3. 3

    Generate professional AI articles at scale

    2023 · wpautoblog.com · its alternatives →

  4. 4

    An honest to god, non-algorithmic reverse chrono list of tech news that passes my signal-to-noise tests, updated hourly. A lightweight a page design as I've been able to keep; simple, clean, fast. No commercial features or aspirations - this is a passion project, something I've been fooling around with on and off for decades. There's a "Top" view too with an LLM edited front page & summary, and categorized views for a large number of topics - see the Directory. A few more buried features to explore, but the fundamental use case is pop in, scan, exit - fast and concise. Your feedback would be…

    2025 · deadstack.net · its alternatives →

  5. 5IB

    Hi there! When Supabase announced their recent hackathon, I thought it was a good time to build something to learn more about so many of the new AI models and tech out there. From the different techniques of embedding documents to the future RAG. With the rise of short form content with TikTok and Youtube. A lot more knowledge is in videos than ever before. Finding specific answers within millions of videos can be difficult for any one person to go through. So the question is if there is Google that indexes text on website making it easier to find based on the context of on your question,…

    2023 · avse.vercel.app · its alternatives →

  6. 6SH

    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 · its alternatives →

  7. 7

    Hey HN! I'm excited to share a tool I've been working on - a native Hacker News reader built with Rust and egui. Here's a screenshot: https://github.com/haojiang99/hacker_news_reader/blob/main/s.... As a daily HN reader, I've always struggled with keeping track of interesting posts I want to read later. Browser tabs pile up, bookmarks get forgotten, and I lose track of what I've already read. I needed a way to: 1. Browse HN efficiently (across all sections - hot, new, show, ask, jobs, best) 2. Quickly mark posts as "todo" for later reading 3. Mark posts as…

    2025 · github.com · its alternatives →

  8. 8

    We built a search engine that shows you the most engaging stories/topics being shared across Twitter, Facebook, Linkedin, and Google+. We crawled over 15 million articles the past 3 months, retrieved the total number of Facebook likes, tweets, Google+’s etc and built a search index around it. Here's what our infrastructure looks like: Rails/Redis: We use the Sidekiq gem as a message queue. We have hundreds of workers that do the crawling, data mining, and number crunching. ElasticSearch: We built the search index using ElasticSearch, with the data imported from our Postgres…

    2013 · buzzsumo.com · its alternatives →

  9. 9

    I've already picked up so much great news and tips from here — thanks to the HNers for sharing. That said, I still find myself manually checking various official newsrooms and engineering blogs. To save myself from the constant 'tab hunting,' I built a small Chrome extension with a bit of help from Codex. It’s been working well for my workflow, so I figured I’d put it on the Web Store in case anyone else finds it useful. Since many companies don't provide (or they just neglect) RSS feeds anymore, I built it to fetch the pages directly and extract the links. I’ve limited it to one check per…

    Apr 2026 · chromewebstore.google.com · its alternatives →

  10. 10IM

    AI search results are quickly becoming more important than SEO, but as businesses, we have no visibility over it! That's why I'm building "Ahrefs for AI search results". Track keyword performance on AI tools like ChatGPT, Claude, Perplexity & more

    2025 · linrush.com · its alternatives →

  11. 11

    I built https://ask.rivestack.io — a semantic search engine over Hacker News posts. Instead of keyword matching, it finds results by meaning, so you can search things like "best way to handle authentication in microservices" and get relevant threads even if they don't contain those exact words. How it works: Indexed HN posts and comments into PostgreSQL with pgvector (HNSW index) Embeddings generated with OpenAI's embedding model Queries run as nearest-neighbor vector searches — typical response under 50ms The whole thing runs on a single Postgres instance, no separate vector DB I…

    Feb 2026 · ask.rivestack.io · its alternatives →

  12. 12AP

    Hi HN, I've been a daily user here for almost 15 years. Over that time, my interests have shifted. I find I'm now more interested in deep-dive technical posts and personal blogs than the big tech announcements that often dominate the front page. The "top" feed was starting to feel stale, and I was spending more time digging through "new". So, I decided to build what I wanted: a personalized "For You" feed. Link: https://hn.shaped.ai It's a simple concept: you log in with your normal HN credentials, and as you favorite stories, it learns what you're interested in and re-ranks the…

    2025 · hn.shaped.ai · its alternatives →

  13. 13IB

    Think of HackerNews, but only for AI content. Did build this out of the wish for easier discoverability of new technologies in the AI/ML space. Obviously, so far only a tiny small community, but maybe a few of you find it nice to be around and want to post a link there every now and then :)

    2023 · news.aiapipro.com · its alternatives →

  14. 14

    Dear HN Community, I am a long time fan and first-time contributor. I just launched a developer focused semantic search platform and wanted to share it with the community. The idea is simple: upload structured or unstructured documents, select the fields you want to index and tag as metadata, and instantly get a clean search API you can use in your own app. Here is what it currently supports: - Manage your own tenants and projects - Upload .json and .txt files (support for .pdf, .docx, .xlsx, .yml, etc. coming soon) - Expose 3 APIs: search, upload document (embeddings), and delete document -…

    2025 · aisearch.vpuna.com · its alternatives →

  15. 15

    So I've been obsessed with a weird question for the past 6 months, what happens to SEO when everyone starts asking ChatGPT for recommendations instead of Googling? The answer, apparently, is chaos. And maybe opportunity? I built FirstClick because I noticed something strange. My previous startup was getting zero traffic from AI assistants, but our competitor (objectively worse product, sorry not sorry) was getting mentioned by Claude and Perplexity constantly. It drove me crazy. So I reverse engineered why. Turns out there's a whole new game being played and most founders don't even know it…

    Dec 2025 · firstclick.so · its alternatives →

  16. 16

    I got tired of reading clickbait articles and seeing irrelevant ads. So I pulled in a few RSS feeds to create a news digest using OpenAI 4o-mini for summarisation. Appreciate any feedback you'all might have. PS: News-summarisation may have been done to death, but I'm a UI noob, so I'm using this project to learn some.

    2025 · newsful.ai · its alternatives →

  17. 17SF

    When OpenAI released Learning Transferable Visual Models From Natural Language Supervision in 2021, it sparked a multimodal semantic search revolution. While the concept wasn’t new, the paper catalyzed a shift in the industry, inspiring a wave of semantic search tools. These advances delivered a leap forward in search quality compared to traditional lexical search, with adopters reporting significant improvements in conversion rates and revenue. But semantic search alone isn’t the endgame. Productionizing search remains a challenge, and hybrid search—combining keyword precision with semantic…

    2024 · play.shaped.ai · its alternatives →

  18. 18

    Been feeling a bit left out in this fast paced world of ML/AI, so built my first ML project since college. The idea is to scrape the most recent HN article titles and use TF-IDF and cosine similarity as metrics to rank articles that you're interested in to filter out only relevant things. Hopefully a fun project for beginners to get inspiration to jump into this world.

    2023 · github.com · its alternatives →

  19. 19
    aifeed▲10

    Hi HN! I built aifeed as a simple, real-time feed for AI-related links. It's meant for following new tools, articles and projects as they appear. You can also save interesting links to your favorites so they don't get lost. Submissions are community-driven, with light moderation and a small fee to reduce spam. Happy to hear any feedback.

    May 2026 · aifeed.dev · its alternatives →

  20. 20

    Hey folks! This is a project that I've been working in my free time for the past few months. It's a news aggregator that uses AI to select relevant articles and summarize them. The default sources are frameworks and libraries' updates, popular HN topics, and languages' subreddits threads that make past a certain threshold. You can run a local instance (needs an OpenAI key) and customize it with your own sources, and adjust the prompt as well. The resulting website can be browsed at https://dev-radar.com/ My next experiment will be with local news. I'm building some feeds with…

    2023 · github.com · its alternatives →

  21. 21

    Hi HN! I'm Tim! We rejected 73% of our AI-generated content last month. Not because of grammar, but because it was substantively empty. AI made content production 10x faster, but quality checking didn't scale. I built FluffFilter to catch this before publishing. Content teams went from producing 25 posts/week to 250+, but were publishing a lot of generic fluff—phrases like "in today's digital landscape," unsubstantiated claims, surface-level analysis. Existing tools (Grammarly, Clearscope, etc.) focus on mechanics and SEO keywords, not substantive quality. What FluffFilter Does: *…

    Oct 2025 · flufffilter.com · its alternatives →

  22. 22

    Hi HN — I built Feedstack, a small tool for product teams who keep hearing “listen to your users”, but struggle with two problems: - the loudest users dominate inboxes / DMs - real sentiment is scattered across places like Reddit, forums, comments, reviews, etc. Feedstack tries to create a “zero point of truth” for prioritization by combining: Discovery: automatically find relevant conversations about your product across the web Distillation: use AI to turn messy threads into clean, review-ready feedback items (title, summary, evidence, suggested feature) Validation: publish the best…

    Jan 2026 · feedstack.app · its alternatives →

  23. 23

    We’re George and Ann, and want to share a Hacker News specific browser extension that we have been working on. We all love the rich discussions in HN, but navigating long posts with multiple threads can sometimes be challenging. You get lost in the depth and breadth of the discussion. There are a few AI-based summarization tools, but they typically focus on summarizing the article rather than the comments, and thus miss the essence of threaded discussions. So, we built Hacker News Companion, a browser extension that makes it easy to navigate discussions and understand diverse viewpoints…

    2024 · github.com · its alternatives →

  24. 24

    I was watching Deep Research do hours of research in minutes and thought why the hell am I still manually clicking through Ahrefs trying to guess what keywords to check? So I built an AI that does keyword research the same way. The problem with traditional keyword tools is they assume you already know what to look for. But I'd sit there thinking "okay I'm building a developer tool... do I search for 'API monitoring'? 'webhook debugging'? 'API testing'?" Then I'd spend an hour going down rabbit holes and miss the fact that "Postman alternative open source" or something like that gets 2k…

    2025 · jelloseo.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →