Free tool, no sign-up

Free Website Change Monitor

Save a version of any web page, come back later and see exactly what changed: new text in green, removed text in red. Track competitor pricing, terms, product pages and your own site.

Free and no sign-up. Saved versions stay in this browser.

How to use the website change monitor

Three steps, and results in a few minutes.

Step 1

Enter a page address

The first check saves the text of the page as it is today.

Step 2

Come back and check again

Click "Check for changes" any time. The tool compares the live page with your saved version.

Step 3

See what changed

Added text shows in green and removed text in red. Save the new version when you have reviewed it.

Built for quick, private checks

No account and no extension. Your saved versions never leave your browser.

Word-level highlights

See the exact words that were added or removed, with a few lines of context around each change.

Ignores the noise

Scripts, styles, menus and footers are left out, so you see changes to the content that matters.

Your watch list

Every page you monitor is listed here. Click one to check it again.

Private by design

Saved versions are stored in your own browser, not on our servers.

Any public page

Pricing pages, terms, product listings, job posts, documentation or your own site.

Check any time

Compare today with the version from last week or last month, whenever you need to.

What you can track with a website change monitor

  • Competitor pricing and plans. See when a competitor changes a price, a plan or a feature list.
  • Terms, policies and legal pages. Catch edits to terms of service, privacy policies or partner rules that affect you.
  • Product and stock pages. Spot new products, changed descriptions or items that come back in stock.
  • Your own site. Confirm that a release changed only what it should, or find text that changed without anyone noticing.
  • Regulations and documentation. Follow pages from regulators, platforms and APIs that publish changes without announcing them.

How the comparison works

The tool reads the text of the page, leaves out scripts and, if you choose, menus and footers, then compares it line by line with your saved version. Changed lines are compared word by word, so a new price or a single edited sentence stands out.

What it does not do yet

Checks run when you click the button. There are no email alerts yet, pages behind a login cannot be checked, and text that a page loads with JavaScript after it opens may not appear, because the tool reads the HTML the server sends.

Need automatic alerts?

We build monitoring automations that check pages on a schedule and send changes to email, Slack or your CRM, using tools such as n8n. See AI automation services if you want this running on its own.

Website Change Monitor FAQ

Straight answers to the questions we hear most.

Is this website change monitor free?

Yes. It is free with no sign-up.

Where are my saved versions stored?

In your own browser, using local storage. They are not uploaded to our servers. Clearing your browser data or using private browsing removes them.

Will it email me when a page changes?

Not yet. Checks run when you click "Check for changes". If you need scheduled checks with email or Slack alerts, we can build that for you.

Can I monitor a competitor's website?

Yes, any public page that loads without a login. The tool reads the page the same way a visitor would.

Why do some changes not show up?

The tool compares the text in the HTML the server sends. Text added by JavaScript after the page opens, images and styling changes are not compared.

How do I stop monitoring a page?

Click Remove next to the page in your watch list. That deletes the saved version from your browser.

Want changes sent to you automatically?

We build monitoring automations that check pages on a schedule and alert your team by email, Slack or CRM the moment something changes.

30 minutes. Custom recommendation. No strings attached.