changedetection.io is described as '- The best and simplest self-hosted free open source website change detection monitoring and notification service. An alternative to Visualping, Watchtower etc. Designed for simplicity - the main goal is to simply monitor which websites had a text change for' and is a website monitoring tool in the development category. There are more than 50 alternatives to changedetection.io for a variety of platforms, including Web-based, SaaS, iPhone, Android and Mac apps. The best changedetection.io alternative is Huginn, which is both free and Open Source. Other great apps like changedetection.io are Distill Web Monitor, WebSite-Watcher, Visualping and Wachete.
FetchTheChange monitors websites and alerts you the moment something changes — a price, a stock status, a competitor's pricing page, a government notice, or any other value you care about.
Norway
RSS feeds for arbitrary websites, using CSS selectors. Feed me up, Scotty! is: straightforward to set up, runs on GitHub Actions, GitLab CI/CD, or wherever floats your boat, uses an actual browser to fetch data.
DealHunter is a marketplace deal-alert aggregator that watches 7 resale marketplaces — Mercari, eBay, Facebook Marketplace, Poshmark, Craigslist, OfferUp, and Depop — from a single saved search.
United States
LurkMor monitors Craigslist, eBay, and Poshmark for new listings that match your search terms and sends you an alert the moment something shows up. Set up a search once, pick your notification method (email or Telegram), and let it run. No account required to get started.
SiteMonit is a cloud tool that watches web pages and shows a before/after diff of exactly what changed, with alerts by email, Telegram, Slack, webhook or Viber.
Monitor your competitors' clinical trial pipelines on ClinicalTrials.gov, with daily alerts when trials change status, shift phase, or show signs of slipping.
StayWindow is a service that monitors hotel prices for your desired bookings. You can add hotels from Booking.com or a hotel's own page, set your dates, and StayWindow will check them daily. If a better price appears, you'll receive an email alert.
Bulgaria
EU
MCP-native website monitoring that tracks changes on any public URL and delivers AI-powered summaries through ChatGPT, Claude, or the web dashboard.
SwedenEU
PageDiff watches any public web page and tells you what changed — and whether it matters. Describe what to watch in plain English; get AI-written, significance-scored alerts.
RomaniaEU
Provides continuous website monitoring for price, stock, content, SEO, legal terms, SSL, and domain changes. AI filtering highlights meaningful updates. Alerts are sent via multiple channels. Supports integration with AI clients for management and customization.
RomaniaEU
Rival Radar uses AI to automatically track your competitors' pricing, features, and messaging, filtering out cosmetic noise to deliver concise, plain-English updates on the changes that actually matter.
United Kingdom
