Changd monitors visual website changes using screenshots, XPath selectors, or APIs, and can be self-hosted.
ChangeDetection.io
changedetection.io monitors webpages for content changes and can alert users about updates such as price drops or restocks.

About ChangeDetection.io
ChangeDetection.io is a GitHub project for monitoring webpages and sending alerts when their content changes. The repository includes API documentation and an OpenAPI specification. It is open source and licensed under Apache-2.0.
Pricing is not clearly stated.
ChangeDetection.io at a glance
- Category
- Online Tools › URL & Link Tools
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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