ChangeSweepChangeSweep is a Chrome extension that watches a specific part of any page, in your own browser. It ignores ads, timestamps, “2m ago,” and view counters by default. Unlimited monitors, no account, and your data stays on your device.
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Built to replace the local tools that disappeared or got noisy, not to clone a cloud crawler.
Hover and click the price, the stock line, or any region. Or watch the whole page. You can also click to exclude noisy bits.
Ads, cookie banners, relative times, and volatile counters are ignored by default. Add your own ignore patterns or CSS exclusions.
No account and no cap on monitors. Snapshots and diffs stay on your computer.
Desktop notifications are free. Optional Slack or Discord webhooks post from your browser to a URL you provide.
Every 1, 5, 15, or 60 minutes, or once a day — while Chrome is open. Pause, resume, or check now any time.
ChangeSweep asks for each site only when you add a monitor. It doesn’t take all-sites access at install.
These screenshots come from real runs of the extension on sample pages.
Local monitoring is free and unlimited. Pro adds 24/7 cloud checks and is coming soon.
Leave your email and we’ll tell you when 24/7 cloud checks and email alerts are ready. This is a waitlist, not a charge.
Not yet. Local checks run only while Chrome is open. That’s also how Pro will be sold later: 24/7 cloud checks and email alerts.
No. Snapshots stay in your browser. The only time content leaves your device is if you add your own webhook, which posts to the address you provide.
The work runs on your computer. There’s no reason to ration it.