Check what changed on any web page

Yes. The public tool captures a baseline of any reachable URL and re-checks it for changes with no account required. It is rate-limited to keep it fair, but it costs nothing and there is nothing to install.

Paste the page's URL and click Check this page. We fetch the page and store a baseline snapshot for 24 hours. Come back later - after a deploy, a price update, or a terms change - and click Check for changes. We re-fetch the page, compare it against the baseline, and mark exactly what was added or removed.

Baselines are held for 24 hours from the moment of capture. Within that window you can re-check as often as you like. After 24 hours the baseline expires and you simply run the first check again to capture a fresh one.

When a change is found, the tool renders the page before and after side by side with added text marked in emerald and removed text marked in red, in place, so you can see what actually changed rather than reading a raw diff. Each pane scrolls independently.

This tool is a manual, on-demand check: you run it yourself whenever you want to know if a page moved. Monitoring runs the same comparison automatically on a schedule and alerts you by email, Slack, Discord, or webhook the moment a change is detected. Every check here has a one-click shortcut to turn the URL into a live monitor.

The free checker fetches the page and compares its content. For JavaScript-rendered single-page apps and element-level targeting with CSS selectors, create a monitor - rendering and selector targeting are available on paid plans.