head to head · open source
changedetection.io vs xxl-crawler
changedetection.io has 35,461 GitHub stars, 2,194 forks, 385 open issues and last shipped yesterday. xxl-crawler has 756 stars, 316 forks, 7 open issues and last shipped 3 months ago. changedetection.io leads on adoption by 4,591% (35,461 vs 756 stars). changedetection.io is written in Python under Apache-2.0; xxl-crawler is written in Java under Apache-2.0. changedetection.io has attracted 6% as many forks as stars, xxl-crawler 42%. changedetection.io was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| changedetection.io | xxl-crawler | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 756 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Java |
| Last push | 2026-11-02 | 2026-08-08 |
| Forks | ⑂ 2.2K | ⑂ 316 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick changedetection.io if
- You weight community size — 35K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick xxl-crawler if
- You want the xxl-crawler feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and xxl-crawler fits your workflow better
About changedetection.io
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. Detect web page content changes and get instant alerts. Ideal for monitoring price changes, content edits, conditional changes and more. [![Release Version][release shield]][release link] [![Docker Pulls][docker pulls]][docker link] [![License][license shield]](LICENSE.md) Get started with website page change monitoring straight away. Don't have time? Try our $8.99/month subscription, use our proxies and support! , half the price of…
read the full changedetection.io overview →
About xxl-crawler
XXL CRAWLER XXL CRAWLER, a lightweight web crawler framework. Home Page Introduction XXL CRAWLER is a lightweight web crawler framework. A line of code to develop a multi threaded crawler, fully annotated way to collect page data to Java objects, with "multi threaded, fully annotated, JS rendering, proxy, distributed extension" and other features; XXL CRAWLER 是一个轻量级Java爬虫框架。一行代码开发一个多线程爬虫，全注解方式采集页面数据至Java对象，拥有"多线程、全注解、JS渲染、代理、分布式扩展"等特性； Documentation 中文文档 Features 1、简洁：API直观简洁，可快速上手； 2、轻量级：底层实现仅强依赖jsoup，简洁高效； 3、模块化：模块化的结构设计，可轻松扩展； 4、全注解：支持通过注解提取页面数据，高效映射页面数据到PageVO对象，底层自动完成PageVO对象的数据抽取和封装返回；单个页面支持抽取一个或多个PageVO；…
read the full xxl-crawler overview →
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Frequently asked questions
Is changedetection.io or xxl-crawler more popular?
changedetection.io has 35,461 GitHub stars and xxl-crawler has 756. changedetection.io has the larger community by that measure.
Are changedetection.io and xxl-crawler free?
Both are open source. changedetection.io is licensed under Apache-2.0 and xxl-crawler under Apache-2.0. Neither carries a licence fee.
What is the difference between changedetection.io and xxl-crawler?
changedetection.io is written in Python and xxl-crawler in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, changedetection.io or xxl-crawler?
Choose changedetection.io if you want the larger community (35,461 stars) or its Apache-2.0 licence terms. Choose xxl-crawler if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.