head to head · open source
changedetection.io vs siteone-crawler
changedetection.io has 34,312 GitHub stars, 2,064 forks, 385 open issues and last shipped today. siteone-crawler has 906 stars, 84 forks, 21 open issues and last shipped 3 months ago. changedetection.io leads on adoption by 3,687% (34,312 vs 906 stars). changedetection.io is written in Python under Apache-2.0; siteone-crawler is written in Rust under MIT. changedetection.io has attracted 6% as many forks as stars, siteone-crawler 9%. 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 | siteone-crawler | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 906 |
| License | Apache-2.0 | MIT |
| Written in | Python | Rust |
| Last push | 2026-09-18 | 2026-06-29 |
| Forks | ⑂ 2.1K | ⑂ 84 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick changedetection.io if
- You weight community size — 34K 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 siteone-crawler if
- You want the siteone-crawler feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and siteone-crawler fits your workflow better
About changedetection.io
changedetection.io is an open source website change detection and web page monitoring tool written in Python and released under the Apache 2.0 license. It watches URLs, detects when their content changes, and sends alerts through channels such as Discord, Email, Slack, Telegram, and Webhook. The project lives in the Data & Analytics / Data Extraction & Web Scraping ecosystem, carries more than 34,000 stars and 2,000 forks on GitHub, and has been developed for roughly six years. It is designed to be self hosted, and the same codebase also backs a hosted subscription service offered by the maintainers.…
read the full changedetection.io overview →
About siteone-crawler
SiteOne Crawler SiteOne Crawler is a powerful and easy to use website analyzer, cloner, and converter designed for developers seeking security and performance insights, SEO specialists identifying optimization opportunities, and website owners needing reliable backups and offline versions. Now rewritten in Rust for maximum performance, minimal resource usage, and zero runtime dependencies. The transition from PHP+Swoole to Rust resulted in 25% faster execution and 30% lower memory consumption while producing identical output. Discover the SiteOne Crawler advantage: Run Anywhere: Single native binary for 🪟 Window…
read the full siteone-crawler overview →
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Frequently asked questions
Is changedetection.io or siteone-crawler more popular?
changedetection.io has 34,312 GitHub stars and siteone-crawler has 906. changedetection.io has the larger community by that measure.
Are changedetection.io and siteone-crawler free?
Both are open source. changedetection.io is licensed under Apache-2.0 and siteone-crawler under MIT. Neither carries a licence fee.
What is the difference between changedetection.io and siteone-crawler?
changedetection.io is written in Python and siteone-crawler in Rust. 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 siteone-crawler?
Choose changedetection.io if you want the larger community (34,312 stars) or its Apache-2.0 licence terms. Choose siteone-crawler if its feature set, stack or MIT licence fits better. Both are self-hostable.