Alternatives

Products that do what WebMonitor does

Track any website change ，just describe what to watch

1. 1
   Web Monitoring by Visualping▲196

   Email alert when something changes on a webpage

   2017

2. 2IB
   I built a tool that watches webpages and exposes changes as RSS▲320

   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…

   Mar 2026 · sitespy.app

3. 3CI
   Changedetection.io detect changes in websites and JSON feeds▲147

   2022 · github.com

4. 4
   Changed▲169

   Monitor and get push notifications when a website changes

   2018

5. 5
   /monitor by Firecrawl▲358

   Notify your AI agent when the web changes

   May 2026 · firecrawl.dev

6. 6
   ScrapX▲358

   Monitor your competitors

   2023

7. 7CS
   Counter – Simple and free web analytics▲169

   2023 · counter.dev

8. 8
   PageCrawl.io▲92

   Track Website Changes

   2019

9. 9
   ChangeWatch▲6

   Website change alerts, made simple.

   Jan 2026 · changewatch.vercel.app

10. 10
    Web Change Monitor▲2

    Know when any webpage changes

    Apr 2026 · webchangemonitor.com

11. 11
    Webingg.com▲4

    AI-powered website change monitoring with instant alerts

    Mar 2026 · chromewebstore.google.com

12. 12
    WebhookWatch▲122

    A simple stripe webhook monitoring and notification app

    2024

13. 13
    VisualPing▲133

    Get notified on visual changes of a website or website area

    2014

14. 14
    AnyTracker▲129

    Track numbers, text and prices from virtually any website

    2023

15. 15
    Monitor website changes with AI▲94

    Your AI agent for automating browsers

    2025

16. 16
    Let Me Know When▲120

    AI-Powered website URL monitoring

    2024

17. 17
    Sken.io▲115

    Advanced tool for change detection on any website.

    2019

18. 18
    TrackSiteChanges▲11

    Monitor competitor website updates in real-time

    2025

19. 19
    Cheap Ass▲97

    Track changes in product price - get notifications by email

    2014

20. 20
    Site Spy▲4

    Track website changes and see exactly what updated

    Mar 2026 · sitespy.app

21. 21
    WatchPage▲3

    Website Changes

    Jun 2026 · watchpage.app

22. 22
    PageWatch▲2

    Monitor website changes with instant alerts

    Jul 2026 · pagewatch.tech

23. 23
    webdog.ai▲14

    Open source web monitoring service

    Jul 2026 · webdog.ai

24. 24
    PageWatch▲7

    Never miss a change that costs you money

    Jan 2026 · pagewatch.cloud

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