head to head · open source
changedetection.io vs PyPtt
changedetection.io has 34,312 GitHub stars, 2,064 forks, 385 open issues and last shipped yesterday. PyPtt has 732 stars, 104 forks, 0 open issues and last shipped 1 months ago. changedetection.io leads on adoption by 4,587% (34,312 vs 732 stars). changedetection.io is written in Python under Apache-2.0; PyPtt is written in Python under LGPL-3.0. changedetection.io has attracted 6% as many forks as stars, PyPtt 14%. 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 | PyPtt | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 732 |
| License | Apache-2.0 | LGPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-09-18 | 2026-08-19 |
| Forks | ⑂ 2.1K | ⑂ 104 |
| 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 PyPtt if
- You want the PyPtt feature set and don't need the biggest community
- You prefer the LGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and PyPtt 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 PyPtt
PyPtt is a pure Python SDK for the PTT (批踢踢) bulletin board system, built for Python developers who want to write PTT bots and automation instead of reverse engineering the service by hand.
read the full PyPtt overview →
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Frequently asked questions
Is changedetection.io or PyPtt more popular?
changedetection.io has 34,312 GitHub stars and PyPtt has 732. changedetection.io has the larger community by that measure.
Are changedetection.io and PyPtt free?
Both are open source. changedetection.io is licensed under Apache-2.0 and PyPtt under LGPL-3.0. Neither carries a licence fee.
What is the difference between changedetection.io and PyPtt?
changedetection.io is written in Python and PyPtt 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 PyPtt?
Choose changedetection.io if you want the larger community (34,312 stars) or its Apache-2.0 licence terms. Choose PyPtt if its feature set, stack or LGPL-3.0 licence fits better. Both are self-hostable.