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dgtlmoon avatar

changedetection.io

Watch web pages for changes and get notified when prices or text update

  • Self-hosted alternatives
  • Servers and infrastructure
  • Productivity
View on GitHub
Website

What it is

changedetection.io checks the pages you choose on a schedule and tells you when something changes. People use it for price drops, restocks, job postings, and policy pages. You can watch just part of a page, and alerts go to email, chat apps, and many other services.

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Facts

Stars
35,145 GitHub stars.
35,145

Forks
2,168
Commits
2,599
Contributors
160
Language
Python
License
Apache-2.0
Last commit
Oct 19, 2026
On GitHub since
January 2021
First release
January 2021
Platforms
web, self-hosted
Self-hostable
Yes
Alternative to
Visualping, Distill.io
Author
dgtlmoon
Tags
  • notifications
  • browser-automation
  • monitoring
  • rss
  • web-scraping

Last synced from GitHub on Oct 20, 2026

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What people are saying

Updated Oct 21, 2026
  • Hacker NewsChangeDetection, monitor any website changeSep 1, 2023 · 253 points · 56 comments (opens Hacker News in a new tab)
  • Hacker NewsShow HN: Changedetection.io detect changes in websites and JSON feedsJan 3, 2022 · 147 points · 29 comments (opens Hacker News in a new tab)
  • Bluesky“changedetection.io is an open-source alternative for website change monitoring, alerting you to page updates via email, Discord, Slack, and more. Self-host…”May 27, 2026 · 6 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Tip: Here's how I got a 5090 FE at 3:30 pm EST yesterday. I used (self-hosted) re-stock feature. You still need to use your bony meat appendage to buy it, but…”Jan 31, 2025 · 6 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Similar approach but using newreleases.io instead of changedetection.io to monitor Svelte‘s GitHub repositories for new releases.”Mar 7, 2026 · 2 likes · 2 replies (opens Bluesky in a new tab)
  • Bluesky“ChangeDetection.io - Resistance Directory”Jul 15, 2026 · 3 likes · 0 replies (opens Bluesky in a new tab)
  • Hacker NewsThe Future of Synapse and DendriteJan 28, 2024 · 1 point · 2 comments (opens Hacker News in a new tab)
  • Bluesky“This morning I set up a self-hosted instance of changedetection.io. Pretty cool and useful. Where has this been all my life:”Mar 18, 2026 · 0 likes · 2 replies (opens Bluesky in a new tab)
  • Bluesky“New on EveryDev.ai: changedetection.io Open-source website change detection and monitoring tool that sends alerts for page updates, price changes, and.”Oct 20, 2026 · 0 likes · 1 reply (opens Bluesky in a new tab)
  • Bluesky“How do you create a #Shopping List? Well, this is how #homelab users do it! #ChangeDetection changedetection.io”Oct 5, 2026 · 1 like · 0 replies (opens Bluesky in a new tab)
  • Bluesky“i run a changedetection.io self hosted docker container to do stuff like this and send notifications to my phone with ntfy but you might not be in a position…”Jul 8, 2026 · 1 like · 0 replies (opens Bluesky in a new tab)
  • Bluesky“changedetection.io 0.55.1 upgrades from a simple diff tool to an AI-powered change analyzer. 🤖 Set custom LLM rulesets and get AI text summaries of changes…”Apr 27, 2026 · 1 like · 0 replies (opens Bluesky in a new tab)
  • Bluesky“The inevitable question: why not changedetection.io? While self-hosting is great, the UX gap is real. Devs are opting for 'browser-first' workflows because…”Mar 12, 2026 · 0 likes · 1 reply (opens Bluesky in a new tab)
  • Bluesky“But apparently this is very good! (Thanks @hrbrmstr.dev for the tip!)”Feb 6, 2025 · 1 like · 0 replies (opens Bluesky in a new tab)
  • Bluesky“I came across this open source change detection tool that people here might be interested in for various reasons (finding sales, toppling regimes, etc.)…”Oct 12, 2026 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Website change detection, monitoring, alerts, notifications, restock alerts | changedetection.io”May 18, 2026 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Modern web users juggle a lot—so why not let a tool handle the nagging task of page monitoring? changedetection.io alerts you to changes, big or small…”Dec 29, 2025 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Track website changes like a pro and get instant alerts the moment your favorite sites update—never miss a beat with this powerful, self-hosted monitoring…”Dec 19, 2025 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“I've been having a hoot settling into running self-hosted services (transmission, changedetection.io, pihole, mysql, postgres, metabase, plex) and my left…”Oct 12, 2025 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“@ihnatko.bsky.social Hi Andy -- just to let you know that I've set a changedetection.io condition on `ihnatko.com` to be warned when your site launched, and…”Aug 9, 2025 · 0 likes · 0 replies (opens Bluesky in a new tab)