head to head · open source
changedetection.io vs parsera
changedetection.io has 34,295 GitHub stars, 2,063 forks, 385 open issues and last shipped yesterday. parsera has 1,356 stars, 78 forks, 4 open issues and last shipped 9 months ago. changedetection.io leads on adoption by 2,429% (34,295 vs 1,356 stars). changedetection.io is written in Python under Apache-2.0; parsera is written in Python under GPL-2.0. changedetection.io has attracted 6% as many forks as stars, parsera 6%. 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 | parsera | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 1.4K |
| License | Apache-2.0 | GPL-2.0 |
| Written in | Python | Python |
| Last push | 2026-09-17 | 2025-12-17 |
| Forks | ⑂ 2.1K | ⑂ 78 |
| 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 parsera if
- You want the parsera feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches Python
- You evaluated both and parsera 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 parsera
Parsera lightweight Python library scraping websites with LLMs. It sits in Python web scraping and data extraction ecosystem. Listing puts it under Data & Analytics / Data Extraction & Web Scraping. License is GPL 2.0. Project page lists 1356 stars, 78 forks, 4 open issues, 2 year age, and last push date 2025 12 17T10:58:19Z. Topics connect it to AI scraping, Playwright, open source data extraction.
read the full parsera overview →
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Frequently asked questions
Is changedetection.io or parsera more popular?
changedetection.io has 34,295 GitHub stars and parsera has 1,356. changedetection.io has the larger community by that measure.
Are changedetection.io and parsera free?
Both are open source. changedetection.io is licensed under Apache-2.0 and parsera under GPL-2.0. Neither carries a licence fee.
What is the difference between changedetection.io and parsera?
changedetection.io is written in Python and parsera 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 parsera?
Choose changedetection.io if you want the larger community (34,295 stars) or its Apache-2.0 licence terms. Choose parsera if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.