head to head · open source
changedetection.io vs TumblThree
changedetection.io has 35,461 GitHub stars, 2,194 forks, 385 open issues and last shipped yesterday. TumblThree has 742 stars, 87 forks, 38 open issues and last shipped 16 days ago. changedetection.io leads on adoption by 4,679% (35,461 vs 742 stars). changedetection.io is written in Python under Apache-2.0; TumblThree is written in C# under MIT. changedetection.io has attracted 6% as many forks as stars, TumblThree 12%. 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.
← all 20902 open source comparisons
Side by side
| changedetection.io | TumblThree | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 742 |
| License | Apache-2.0 | MIT |
| Written in | Python | C# |
| Last push | 2026-11-02 | 2026-10-18 |
| Forks | ⑂ 2.2K | ⑂ 87 |
| 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 TumblThree if
- You want the TumblThree feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and TumblThree 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 TumblThree
TumblThree A Tumblr Blog Backup Application TumblThree is a free and open source Tumblr and Twitter blog backup application. It downloads photo, video, audio and text posts from a given Tumblr or Twitter blog. It is the code rewrite of TumblTwo, using the Win Application Framework (WAF) and C with WPF and the MVVM pattern. Features Source code at GitHub (written in C using WPF and MVVM) Multiple concurrent downloads of a single blog and/or different blogs A clipboard monitor that detects blogname.tumblr.com urls in the clipboard (copy and paste) and automatically adds the blog to the bloglist A settings panel…
read the full TumblThree overview →
More in Data & Analytics
Related comparisons
More Data Extraction & Web Scraping projects
Compare either of these against the rest of the Data Extraction & Web Scraping field.
Frequently asked questions
Is changedetection.io or TumblThree more popular?
changedetection.io has 35,461 GitHub stars and TumblThree has 742. changedetection.io has the larger community by that measure.
Are changedetection.io and TumblThree free?
Both are open source. changedetection.io is licensed under Apache-2.0 and TumblThree under MIT. Neither carries a licence fee.
What is the difference between changedetection.io and TumblThree?
changedetection.io is written in Python and TumblThree in C#. 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 TumblThree?
Choose changedetection.io if you want the larger community (35,461 stars) or its Apache-2.0 licence terms. Choose TumblThree if its feature set, stack or MIT licence fits better. Both are self-hostable.