Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring—all for free or enjoy our SaaS plan!
⚡ Executive Summary & Quick Facts
Authoritative Sourcechangedetection.io is changedetection.io is an open-source project written in Python: Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring—all for free or enjoy our SaaS plan!..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), dgtlmoon/changedetection.io has accumulated 35,306 GitHub stars and 2,182 forks. It is written in Python, licensed under Apache-2.0, and ranks #451 globally. It is actively maintained with the latest commit recorded on Oct 26, 2026.”
| Repository | dgtlmoon/changedetection.io ↗ |
|---|---|
| Primary Category | back in stock |
| Language & Stack | Python |
| Software License | Apache-2.0 |
| Community Traction | ★ 35.3K stars · ⑂ 2.2K forks · #451 globally |
| Maintenance | ● Active (Last commit: Oct 26, 2026) · 387 open issues |
| Target Audience | Developers and engineering teams building with Python, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 90/100 · Grade AYes, changedetection.io is actively maintained. Continuous telemetry recorded the last code commit on Oct 26, 2026 (17 days ago). Supported by 35,306 stars and 2,182 community forks, this repository holds a calculated health index of 90/100, reflecting regular maintenance (17 days ago) and active community feedback (387 open).
Star History
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Renders your high-resolution star trajectory chart right inside your GitHub README or project docs.
[](https://githubrepo.cloud/repo/dgtlmoon/changedetection.io?utm_source=readme_chart)Compact badges for your README header. Real-time stars, velocity, health audit, and rank.
[](https://githubrepo.cloud/repo/dgtlmoon/changedetection.io?utm_source=readme_badge) [](https://githubrepo.cloud/repo/dgtlmoon/changedetection.io?utm_source=readme_badge) [](https://githubrepo.cloud/repo/dgtlmoon/changedetection.io?utm_source=readme_badge) [](https://githubrepo.cloud/repo/dgtlmoon/changedetection.io?utm_source=readme_badge) [](https://githubrepo.cloud/repo/dgtlmoon/changedetection.io?utm_source=readme_badge)Momentum
+883
STARS · LAST 30 DAYS
29
PER DAY
#105
MOST-STARRED Python
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +883 | +2.6K |
| Per day | 1 | 29 | 29 |
| Forks gained | +0 | +44 | +109 |
changedetection.io gained 883 stars in the last 30 days, about 29 a day, and now has 35.3K. It is about 6 years old and has averaged roughly 5.9K stars a year. It ranks #105 among Python repositories and #451 across all languages on GitHubRepo.
Trending Record
14
DAYS ON TRENDING
#5819
BEST RANK
Oct 26, 2026
FIRST APPEARANCE
Active
STATUS TODAY
changedetection.io has maintained a continuous presence across global trending indexes, peaking at #5819. Below is the 30-day activity profile:
💡 Overview
changedetection.io is an open-source project written in Python: Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring—all for free or enjoy our SaaS plan!.
Engineered for speed, consistency, and developer ease, it solves common hurdles in back-in-stock, change-alert, change-detection. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Lots of trigger filters, such as "Trigger on text", "Remove text by selector", "Ignore text", "Extract text", also using regular-expressions!
Target elements with xPath 1 and xPath 2, CSS Selectors, Easily monitor complex JSON with JSONPath or jq
Switch between fast non-JS and Chrome JS based "fetchers"
Track changes in PDF files (Monitor text changed in the PDF, Also monitor PDF filesize and checksums)
Easily specify how often a site should be checked
Execute JS before extracting text (Good for logging in, see examples in the UI!)
📥 Installation
$ pip install changedetection.io⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Python >= 3.9, pip, virtualenv
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
changedetection.io coordinates its core functionality through a modular Python pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed changedetection.io into Python backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open Apache-2.0 license.
🚀 Getting Started
Install changedetection.io using your package manager: `pip install changedetection.io`
Initialize your project workspace or configuration file for changedetection.io.
Import changedetection.io into your codebase or invoke it directly from your terminal.
Execute your test suite or run `changedetection.io --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Python, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
dgtlmoon/changedetection.io is currently ranked #451 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #446 | kovidgoyal/kitty | Python | ★ 35.7K | Compare ↗ |
| #447 | vercel-labs/skills | TypeScript | ★ 35.6K | Compare ↗ |
| #448 | qdrant/qdrant | Rust | ★ 35.5K | Compare ↗ |
| #449 | FreeCAD/FreeCAD | C++ | ★ 35.4K | Compare ↗ |
| #450 | lissy93/web-check | TypeScript | ★ 35.3K | Compare ↗ |
| #451 | dgtlmoon/changedetection.io This Project | Python | ★ 35.3K | |
| #452 | anthropics/knowledge-work-plugins | Python | ★ 35.3K | Compare ↗ |
| #453 | agentscope-ai/agentscope | Python | ★ 35.3K | Compare ↗ |
| #454 | sahat/hackathon-starter | JavaScript | ★ 35.3K | Compare ↗ |
| #455 | binwiederhier/ntfy | Go | ★ 35.2K | Compare ↗ |
| #456 | netty/netty | Java | ★ 35.1K | Compare ↗ |
Frequently Asked Questions
What does changedetection.io do? +
Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring—all for free or enjoy our SaaS plan!
Is changedetection.io actively maintained in 2026? +
Yes, changedetection.io is actively maintained. The latest code push was recorded on Oct 26, 2026 (17 days ago). It holds a calculated Maintenance Health Score of 90/100 (A rating) with 35,306 stars and 387 open issues.
What language is changedetection.io written in? +
The primary language is Python. Topics include: back-in-stock, change-alert, change-detection, change-monitoring, monitoring.
How many stars does changedetection.io have? +
changedetection.io has 35,306 stars and 2,182 forks on GitHub.
How does changedetection.io rank among GitHub repositories? +
With 35,306 stars, dgtlmoon/changedetection.io is ranked #451 globally across all repositories tracked on GitHubRepo and #105 among Python projects.
What license is changedetection.io distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
