head to head · open source
changedetection.io vs curl_cffi
changedetection.io has 34,295 GitHub stars, 2,063 forks, 385 open issues and last shipped yesterday. curl_cffi has 6,507 stars, 552 forks, 72 open issues and last shipped yesterday. changedetection.io leads on adoption by 427% (34,295 vs 6,507 stars). changedetection.io is written in Python under Apache-2.0; curl_cffi is written in Python under MIT. changedetection.io has attracted 6% as many forks as stars, curl_cffi 8%. 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 | curl_cffi | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 6.5K |
| License | Apache-2.0 | MIT |
| Written in | Python | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.1K | ⑂ 552 |
| 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 curl_cffi if
- You want the curl_cffi feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and curl_cffi 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 curl_cffi
curl cffi is a Python HTTP client that binds the curl impersonate fork through cffi so Python programs can impersonate browser TLS/JA3 and HTTP/2 fingerprints, and it is aimed at developers whose scripts are blocked by bot protection despite apparently correct requests.
read the full curl_cffi overview →
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Frequently asked questions
Is changedetection.io or curl_cffi more popular?
changedetection.io has 34,295 GitHub stars and curl_cffi has 6,507. changedetection.io has the larger community by that measure.
Are changedetection.io and curl_cffi free?
Both are open source. changedetection.io is licensed under Apache-2.0 and curl_cffi under MIT. Neither carries a licence fee.
What is the difference between changedetection.io and curl_cffi?
changedetection.io is written in Python and curl_cffi in Python. 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 curl_cffi?
Choose changedetection.io if you want the larger community (34,295 stars) or its Apache-2.0 licence terms. Choose curl_cffi if its feature set, stack or MIT licence fits better. Both are self-hostable.