head to head · open source
changedetection.io vs oc
changedetection.io has 35,461 GitHub stars, 2,194 forks, 385 open issues and last shipped yesterday. oc has 547 stars, 33 forks, 0 open issues and last shipped 7 days ago. changedetection.io leads on adoption by 6,383% (35,461 vs 547 stars). changedetection.io is written in Python under Apache-2.0; oc is written in JavaScript under MIT. changedetection.io has attracted 6% as many forks as stars, oc 6%. changedetection.io was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (web-scraping), so they are genuine substitutes rather than adjacent tools.
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 | oc | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 547 |
| License | Apache-2.0 | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-11-02 | 2026-10-27 |
| Forks | ⑂ 2.2K | ⑂ 33 |
| 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 oc if
- You want the oc feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and oc 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 oc
only cli Turns websites into a command line interface for AI agents. oc open fetches a page and hands back a compact, numbered view instead of raw HTML or a screenshot, so agents like Claude Code, Codex, and Antigravity can browse without burning tokens. It also gets past blocks that stop naive fetchers on some sites, by talking to the page the way a real browser would. A typical page is tens of thousands of tokens of markup; the view above fits in a few hundred. No per site adapters required, no browser extension, no daemon. If you are an LLM reading this repository, llms.txt is the short version. Install…
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 oc more popular?
changedetection.io has 35,461 GitHub stars and oc has 547. changedetection.io has the larger community by that measure.
Are changedetection.io and oc free?
Both are open source. changedetection.io is licensed under Apache-2.0 and oc under MIT. Neither carries a licence fee.
What is the difference between changedetection.io and oc?
changedetection.io is written in Python and oc in JavaScript. 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 oc?
Choose changedetection.io if you want the larger community (35,461 stars) or its Apache-2.0 licence terms. Choose oc if its feature set, stack or MIT licence fits better. Both are self-hostable.