Growth · alternatives · 2026
24 alternatives to I built a tool that watches webpages and exposes changes as RSS
I built Site Spy after missing a visa appointment slot because a government page changed and I didn’t notice for two weeks. It watches webpages for changes and shows the result like a diff. The part I think HN might find interesting is that it can monitor a specific element on a page, not just the whole page, and it can expose changes as RSS feeds. So instead of tracking an entire noisy page, you can watch just a price, a stock status, a headline, or a specific content block. When it changes, you can inspect the diff, browse the snapshot history, or follow the updates in an RSS reader. It’s…
Site Spy is a browser extension that monitors webpages for changes and displays them as diffs. It lets users track specific page elements rather than entire pages, making it useful for watching prices, stock status, or… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring—all for free or enjoy our SaaS plan! - dgtlmoon/changedetection.io
2022 · github.com · its alternatives →
- 2HN
I built this several months ago as I was interested to see how the titles of posts evolve/change on HN. It turns out lots of titles are edited every day (in both subjectively and objectively good and bad ways!) and I've found it interesting to see how titles have evolved. The whole thing is automated and is built around a Ruby script that pulls down the titles on the front page at a frequent interval. Any titles for specific story IDs that change get tracked and rendered out to a static HTML page hosted on Netlify. It runs by itself without incident so far. This has been on Show HN…
2019 · hackernewstitles.netlify.com · its alternatives →
- 3
Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)
2024 · v1.web-check.xyz · its alternatives →
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RSS feeds for arbitrary websites, using CSS selectors.
2021 · feed-me-up-scotty.vincenttunru.com · its alternatives →
- 5
Web Extension: Easily find Hacker News discussions about the page you're currently browsing. - pinoceniccola/what-hn-says-webext
2020 · github.com · its alternatives →
- 6ME
2014 · monitorbook.com · its alternatives →
- 7
The Hacker News front page, with a short video explainer for every story.
25d ago · hn.watch · its alternatives →
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Hi, co-founder of markets.sh here. We are doing a lot of news processing and analysis around stocks and companies. One feature people like to use is “alerts” at certain price points. We have now extended this with LLM filters on the whole news feed so that you can create (near) real-time webhooks on arbitrary events like: - Notify me when Nvidia is worth 10 trillion - Notify me about AI breakthroughs - Notify me when Intel is the market leader again - Notify me about successful Starship launches - Notify me when a war breaks out - Notify me about bankrupt unicorn startups - Notify me about…
2024 · markets.sh · its alternatives →
- 10
Monitor website changes around the clock and get alerts in Discord, Telegram, Slack, Google Sheets and many more apps - no code or technical skills needed!
2019 · monitoro.xyz · its alternatives →
- 11
2024 · raphting.dev · its alternatives →
- 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 · its alternatives →
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ScoutFox ▲74Hi HN! We’re building ScoutFox, an alert layer that continuously scouts your interests, filters signals from noise, and reports findings. The ideal user is anyone wanting to monitor something specific to find some alpha before it's obvious. It could a VC looking to invest early on hot startups or a newsroom looking for a breaking story on a niche subject. Google Alerts and RSS feeds could find new changes associated with a keyword but they're bad at determining whether a new piece of information is genuinely significant relative to what the user already knows and cares about. That's the…
May 2026 · scoutfox.in · its alternatives →
- 14
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 →
- 15MA
2020 · hacker-news-analytics.christianfei.com · its alternatives →
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2021 · chrome.google.com · its alternatives →
- 18
Newsit▲63Find the discussion around the page you're looking at!
2018 · newsit.benwinding.com · its alternatives →
- 19AA
2020 · newsandrumors.com · its alternatives →
- 20
Monitor any page for changes — without the false alarms. Describe what to watch in plain English, and Monity.ai alerts you only when it really changes.
2025 · monity.ai · its alternatives →
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- 22TW
2014 · insights.nerdydata.com · its alternatives →
- 23FA
I was overwhelmed by the pace of AI news and papers coming out, so I built an automated HN news monitoring service that delivers relvant news straight to my inbox or RSS feed. It uses LLMs to extract, summarize, and classify the front page articles and analyzes the different perspectives in the comments. No more FOMO :)
2024 · kadoa.com · its alternatives →
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2017 · github.com · its alternatives →
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- Monitorbook – Easily track anything on the web alternatives
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 →