changedetection.io

Self-Hosted

Open-source website change detection and monitoring tool

Overview

changedetection.io lets users track website content updates (text, prices, out-of-stock statuses) and receive alerts via email, Slack, Discord, or webhooks. It supports CSS selectors for targeted monitoring, JavaScript rendering for dynamic sites (using Playwright/Puppeteer), and flexible scheduling (cron jobs or intervals). Deployable via Docker, Kubernetes, or traditional servers—lightweight with a user-friendly UI to manage monitors, ensuring data privacy and control without third-party reliance.

Self-Hosting Resources

Find Official Image on Docker Hub View Source & Docs

Below is a reference structure for docker-compose.yml. ⚠️ Do NOT run blindly. Replace placeholders with official values.

docker-compose.template.yml TEMPLATE


version: '3'
services:
  changedetection_io:
    image: <OFFICIAL_IMAGE_NAME>:latest
    container_name: changedetection-io
    ports:
      - "8080:<APP_INTERNAL_PORT>"
    volumes:
      - ./data:/app/data
    restart: unless-stopped

Key Features

Targeted monitoring with CSS selectors
Dynamic JS site support (Playwright/Puppeteer)
Multi-channel alerts (email, Slack, webhooks)

Frequently Asked Questions

? Is changedetection.io hard to install?

No—most users deploy via a single Docker command, which is straightforward. Helm charts are available for Kubernetes, and minimal technical knowledge is needed for basic setup.

? Is it a good alternative to Visualping?

Yes—changedetection.io is open-source and self-hosted, avoiding subscription costs and retaining data privacy. It offers targeted monitoring, JS rendering, and multi-channel alerts like Visualping, with full control over your monitors.

? Is it completely free?

Yes—changedetection.io is licensed under MIT, so all features are 100% free for self-hosted use with no paid tiers or hidden costs.

Top Alternatives

Visualping Search Google

ChangeTower Search Google

Tool Info

Pricing Free/Open Source

Category Automation

Platform Self-Hosted

Pros

⊕ Privacy-focused self-hosted solution
⊕ No subscription fees (100% open-source)

Cons

⊖ Requires basic server setup (Docker/Kubernetes)
⊖ JS rendering needs extra dependencies (Playwright)