PageDiff — Website Change Tracker
Extension Actions
- Live on Store
Monitor any webpage for changes. Get notified the moment a price drops, a job listing updates, or content changes.
👁 PAGEDIFF — KNOW THE MOMENT ANYTHING CHANGES
PageDiff monitors any webpage automatically in the background and sends you a Chrome notification the moment something changes. No more obsessively refreshing pages. No more missing a sale, a job posting, or a product back in stock.
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🆓 FREE — ALWAYS FREE
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✔ Monitor up to 3 pages simultaneously
✔ Automatic daily background checks — no manual refreshing
✔ Instant Chrome notification when a change is detected
✔ Change percentage shown at a glance on every card
✔ Quick check button — manually trigger a check anytime
✔ Pause and resume monitoring per page
✔ Snapshot preview — see the current captured content
✔ Keyboard shortcut: Ctrl+Shift+K
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⚡ PRO — $9.99 LIFETIME (via Gumroad)
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Everything in Free, plus:
✔ Unlimited pages monitored simultaneously
✔ Custom check frequency per page: Hourly, 6h, 12h, Daily, or Weekly
✔ Keyword alerts — only notify when specific words appear in new content (e.g. "in stock", "hiring", "available", "sale")
✔ Change sensitivity slider — set a minimum % threshold to ignore minor tweaks like cookie banners
✔ Private notes per page — attach your own reminders to each tracked page, auto-saved
✔ Full change history — 20 timestamped entries per page with change summaries
✔ Badge counter — extension icon shows number of unread changes
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REAL USE CASES
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🛍️ Shoppers
→ Waiting for a sold-out sneaker, console, or gadget? Get notified the second it's back in stock
→ Track a product price and catch the drop before the sale ends
→ Monitor a flight or hotel page for price changes
💼 Job Hunters
→ Watch a company's careers page — get alerted the moment new positions are posted
→ Monitor freelance platforms for new projects in your niche
→ Track multiple company job boards simultaneously
📈 Business & Competitive Research
→ Watch competitor pricing pages for any updates
→ Get notified when a competitor announces something new on their homepage
→ Monitor supplier pages for stock or price changes
📋 Practical & Research Use
→ Watch government or visa pages for policy or deadline updates
→ Monitor rental listings for price drops
→ Track university admissions pages for important changes
→ Follow court case dockets or legal document pages
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HOW IT WORKS
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1. Click the PageDiff icon to open the side panel
2. Click "+ Watch a Page" and enter any URL
3. PageDiff takes a snapshot of the page content immediately
4. Chrome checks it automatically on your chosen schedule
5. You receive a notification the moment anything changes
6. Open PageDiff to see what changed, the percentage, and the full history
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IMPORTANT NOTE
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PageDiff monitors publicly accessible pages only. Pages behind logins, paywalls, or CAPTCHA verification cannot be monitored.
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SETUP
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Click the PageDiff icon in your Chrome toolbar to open the side panel. To activate Pro: purchase at legendarycreation.gumroad.com/l/pagediff, then enter your license key in PageDiff Settings.
Built by Legendary Creation.