About changedetection.io
changedetection.io is an open source tool that watches web pages and alerts you when something changes. It is useful for tracking prices, restocks and any page that updates over time.
What it does
You give changedetection.io a page address, and it checks the page on a schedule. You can pick a specific part of the page to monitor, or watch the whole page. Browser steps let it log in, fill in fields or click buttons before it checks. When a change is found, it sends an alert to Discord, Slack, Telegram, email or another channel. You can also add your own AI provider key to get short summaries of what changed.
Key features
- Watch any web page for changes
- Choose the part of a page to monitor
- Browser steps for logins, searches and clicks
- Price and restock tracking alerts
- Alerts to Discord, Slack, Telegram, email and more
Who it's for
Shoppers waiting for a price drop or a product to come back into stock, journalists who track government or company pages, and developers who need to know when a site changes.
Pricing and good to know
The project is open source under the Apache 2.0 license and can be self-hosted. The hosted service charges a monthly subscription, which the website lists at a set price per month. Frequent checks on many pages can slow things down, so set realistic check intervals.
Highlights
- Watch any page for content changes
- Monitor one part of a page
- Use browser steps for logins and clicks
- Track prices and restocks
- Send alerts to chat apps and email
