// free website change monitor

Get alerted when any page changes.

Monitor any URL for content changes. Track competitor pricing, product updates, job postings, or compliance docs. API-first with webhook alerts. Free, no credit card required.

Monitor a URL Free View API Docs

Free forever · 3 monitors, daily checks · Setup in 2 minutes

Track any page. Get smart alerts.

No browser extensions, no manual checking. Paste a URL, we handle the rest.

🔍 Any URL, Any Change

Monitor any public URL. Pricing pages, job boards, terms of service, documentation — if it's on the web, we'll catch the change.

⚡ Webhook Alerts

Get instant webhook notifications when changes are detected. Connect to Slack, Discord, Zapier, or any HTTP endpoint.

📊 Shareable Reports

Every detected change gets a shareable URL. Forward it to your team, embed it in Slack, or bookmark it for review.

🎯 CSS Selector Monitoring

Watch specific elements on a page instead of the whole document. Perfect for pricing sections, job listings, or changelogs.

📧 Email Notifications

Receive email alerts when changes are detected. No need to keep tabs open or check dashboards — we'll notify you directly.

🔌 API-First

Build automation on top of our REST API. Integrate change detection into your existing workflows and tools.

How it works

Three steps to never miss a website change again.

Paste a URL

Enter any public URL you want to monitor. We capture a baseline snapshot.

We Watch It

On your schedule, we re-check the page and compare against the baseline.

Get Notified

When something changes, you get a clear diff via webhook, email, or share page.

Simple REST API

All endpoints at https://changemon.pages.dev. No authentication for free tier.

// Create a monitor or re-check an existing one
fetch('https://changemon.pages.dev/api/monitor/check', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    url: 'https://example.com/pricing',
    name: 'Example Pricing',
    userId: 'my-user-id',
    webhookUrls: ['https://hooks.slack.com/services/...']
  })
})
  .then(r => r.json())
  .then(data => console.log(data.checkResult))

Free forever. Upgrade when you need more.

Start free, upgrade when your monitoring needs grow.

Free

Forever free

3 monitored pages
Daily checks
Webhook alerts
Shareable report links

Start Free

Pro

per month

25 monitored pages
Hourly checks
Email + webhook alerts
CSS selector monitoring

Start Free Trial

Team

$29

per month

Unlimited monitors
15-minute checks
Team workspace
JavaScript rendering

What people monitor

From competitor intelligence to compliance tracking.

💰 Competitor Pricing

Get notified when competitors change their pricing tiers or discounts.

📋 Job Postings

Track when companies post new roles or remove existing ones.

📜 Terms of Service

Stay informed when platforms update their legal documents.

🔧 API Docs

Know when API changes are published before they break your integration.

📰 News Sites

Catch breaking news or press releases the moment they're published.

🏛️ Government Docs

Monitor regulatory changes, policy updates, and compliance requirements.