changedetection.io

[<img src="./docs/banner-wide.png" style="max-width:100%;" alt="AI LLM Web site page change monitoring"  title="AI LLM Web site page change monitoring"  />](https://changedetection.io?src=github)

# Detect Website Changes Automatically — Monitor Web Page Changes in Real Time

Monitor websites for updates — get notified via Discord, Email, Slack, Telegram, Webhook and many more — Ideal for monitoring price changes, content edits, conditional changes, LLM Change summaries and triggers just to name few features.

[![Release Version][release-shield]][release-link] [![Docker Pulls][docker-pulls]][docker-link] [![License][license-shield]](LICENSE)


[<img src="./docs/screenshot.png" style="max-width:100%;" alt="Web site page change monitoring"  title="Web site page change monitoring"  />](https://changedetection.io?src=github)

![changedetection.io](https://github.com/dgtlmoon/changedetection.io/actions/workflows/test-only.yml/badge.svg?branch=master)

[**Get started with website page change monitoring straight away. Don't have time? Try our $8.99/month subscription, use our proxies and support!**](https://changedetection.io) , _Same open-source changedetection.io, minus the hard parts, No infrastructure to baby-sit._


- Chrome browser included.
- Nothing to install, access via browser login after signup.
- Super fast, no registration needed setup.
- Get started watching and receiving website change notifications straight away.
- See our [tutorials and how-to page for more inspiration](https://changedetection.io/tutorials) 

## AI-powered website change detection — smart alerts and plain-language summaries

Stop drowning in noise. Connect any LLM (OpenAI, Gemini, Anthropic, Ollama and more) and go from _"something changed"_ to _"only the thing you care about changed"_.

**AI change detection rules** — write a plain-English intent once: _"notify me only when the price drops below $50"_, _"alert me when the item comes back in stock"_, _"ignore navigation and footer changes"_. The AI evaluates every detected diff against your intent and silently suppresses everything irrelevant. Fewer false positives, zero noise.

**AI change summaries** — instead of staring at a raw diff, your notification reads _"Price dropped from $89.99 to $67.00"_ or _"3 new products added to the listing"_. Works globally or per-watch, with full control over the prompt.

Works with any model you already pay for — GPT-4o-mini and Gemini Flash handle this well at fractions of a cent per check. Or run it entirely locally with **Ollama**, **vLLM**, **LM Studio**, or any **OpenAI-compatible self-hosted endpoint** — pick the *OpenAI-compatible (vLLM, LM Studio, llama.cpp)* option in the provider dropdown and point it at your server's `/v1` URL. Powered by [LiteLLM](https://github.com/BerriAI/litellm), giving you seamless access to [100+ supported providers and models](https://docs.litellm.ai/docs/providers).

We've got a quick tutorial here - [Bring your own LLM/AI Key to changedetection.