webchanges anonymously checks web content (including images) and commands for changes, delivering instant notifications and AI-powered summaries to your favorite platform.
- Watch anything: web pages (in a real browser if needed), APIs, local files and command output.
- Track only what matters with over 30 filters.
- Read changes at a glance in formatted HTML, side by side, word by word, as AI summaries and more.
- Get notified anywhere: email, Telegram, Discord, ntfy, webhooks and more.
- Few false alarms: transient errors can be held back and repeated ones reported once.
- Runs on your machine, total privacy, no account needed, and extends with Python hooks.
webchanges requires 
For Generative AI summaries (BETA), you need a free API Key from Google Cloud AI Studio (see here).
Install webchanges with uv (recommended):
uv pip install webchangesor with pip:
pip install webchangesOn Windows with Python 3.15, first run set PYYAML_FORCE_LIBYAML=0 (in PowerShell:
$env:PYYAML_FORCE_LIBYAML = "0"), as explained here.
- In a Docker container: a minimal implementation (no browser) is here, and one with a browser is here.
- As a GitHub Action: an implementation is here.
The documentation is hosted on Read the Docs.
Run the following command to create the default
config.yaml(configuration) andjobs.yaml(jobs) files and open an editor to add your jobs:webchanges --edit-jobs
Run the following command to change the default configuration, e.g. to receive change notifications ("reports") by email and/or one of many other methods:
webchanges --edit-config
To check the sources in your jobs and report on (e.g. display or via email) any changes found from the last time the program ran, just run:
webchangeswebchanges leverages the power of a system scheduler:
- On Linux you can use cron, with the help of a tool like crontab.guru (help here);
- On Windows you can use Windows Task Scheduler;
- On macOS you can use launchd (help here).
The code, issues tracker, and discussions are hosted on GitHub.
We welcome any contribution no matter how small, both as pull requests or issue reports.
More information for code and documentation contributors is here, and our wishlist is here.
See the complete licenses (released under the MIT License but redistributing modified source code, dated 30 July 2020, from urlwatch 2.21 licensed under a BSD 3-Clause License).
This project is a fork of urlwatch 2.21 and has since added many features; see the comparison.