Know when websites change. Before it matters.

Stop manually checking pages. DiffTrax watches websites for you and sends a summary of what changed.

Add to Chrome. It's free.

5 monitors included. No credit card.

Three steps. That's it.

1

Pick a page

Go to any website you want to track. Click the DiffTrax icon and describe what you care about.

2

We watch it for you

DiffTrax checks the page on a schedule. It reads the content and spots meaningful changes, not just pixel shifts.

3

You get a clear summary

When something changes, you get an email that tells you exactly what's different and why it might matter.

Built for people who don't want another tool to learn

Plain English setup

Tell DiffTrax what to watch in your own words. No selectors, no code, no configuration.

Changes, not noise

You won't get alerts for every tiny update. DiffTrax tells you what actually changed, in a sentence you can read.

Useful summaries

Instead of "something changed," you get specifics. Price dropped from $49 to $39. New job posted for Senior Engineer.

Runs in the background

Set it up once and forget about it. Checks happen on schedule and alerts come to your inbox.

Works on any site

Competitor pages, job boards, government sites, product listings. If it loads in a browser, DiffTrax can track it.

Keeps your data private

Page content is analyzed and discarded. We don't store what we read.

Simple pricing. Start free.

Upgrade when you need more.

Free

$0 /mo
  • 5 monitors
  • Daily checks
  • AI summaries
  • Email alerts
  • 7 days change history
  • CSV export
Get started
Most Popular

Pro

$19 /mo
  • 25 monitors
  • Every 6 hours
  • AI summaries
  • Email alerts
  • 30 days change history
  • CSV export
Go Pro

Business

$39 /mo
  • 100 monitors
  • Every hour
  • AI summaries
  • Email alerts
  • 90 days change history
  • CSV export
Go Business

People use DiffTrax to...

Track competitor pricing changes Monitor job boards for new postings Watch for product restocks Follow government RFP updates Compare competitor websites weekly