head to head · open source
changedetection.io vs trawl
changedetection.io has 35,461 GitHub stars, 2,194 forks, 385 open issues and last shipped yesterday. trawl has 1,096 stars, 65 forks, 7 open issues and last shipped yesterday. changedetection.io leads on adoption by 3,135% (35,461 vs 1,096 stars). changedetection.io is written in Python under Apache-2.0; trawl is written in TypeScript under AGPL-3.0. changedetection.io has attracted 6% as many forks as stars, trawl 6%. trawl 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 | trawl | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 1.1K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.2K | ⑂ 65 |
| 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 trawl if
- You want the trawl feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and trawl 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 trawl
TRAWL Welcome to TRAWL ! 👋 Self hosted web scraping engine with best effort JS challenge and CAPTCHA solving.\ Dedicated flows for Cloudflare, Akamai Bot Manager, and Imperva/Incapsula (best effort), plus Turnstile, reCAPTCHA, hCaptcha, GeeTest, ALTCHA, and Friendly Captcha.\ Much faster and more reliable FlareSolverr & Byparr alternative and drop in replacement for your \ arr stack. Features 2 6x faster compared to FlareSolverr or Byparr it returns much faster with higher success rate 4 tier execution plain HTTP fetch → cached browser session → fresh challenge solve → residential proxy Challenge aware…
read the full trawl overview →
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Frequently asked questions
Is changedetection.io or trawl more popular?
changedetection.io has 35,461 GitHub stars and trawl has 1,096. changedetection.io has the larger community by that measure.
Are changedetection.io and trawl free?
Both are open source. changedetection.io is licensed under Apache-2.0 and trawl under AGPL-3.0. Neither carries a licence fee.
What is the difference between changedetection.io and trawl?
changedetection.io is written in Python and trawl in TypeScript. 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 trawl?
Choose changedetection.io if you want the larger community (35,461 stars) or its Apache-2.0 licence terms. Choose trawl if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.