In simple English
Some websites do not send emails when they change. This tool checks any web page you pick on a schedule. It compares the new version to the old one. If anything changes, it sends a message to your email or chat app. You do not need to keep checking the site yourself.
What it is
A Python (a programming language) tool that downloads web pages and runs diffs (comparisons between two text files) to find changes. It supports custom alerts and AI summaries.
What it is good for
Solo builders who want to track competitor price drops, regulatory updates or open-source releases without building a custom scraper.
- Checks web pages, images and local commands.
- Sends alerts to email and many chat apps.
- Can use an AI model to summarise what changed.
- Requires Python knowledge and terminal use to set up.
- You must set up your own schedule using cron or Task Scheduler.
- Websites that block automated requests may require extra configuration.
Checking important websites manually every day
cron (a tool that runs commands on a schedule)
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pip install webchanges