Monity for Chrome
Watch any page, right from your browser.
A free extension for Chrome, Brave and Edge. Open a page, click Monity, and get an alert with before and after screenshots when it changes. No account; your pages and history stay on your computer.
- Free, no account
- Chrome, Brave and Edge
- Private by default
Monity: Website Change Alerts with AI
- Open the page and click Monity The side panel opens next to the page you are reading.
- Watch the whole page or one area Click Start watching, or pick the price, the stock line or any part of the page.
- Get an alert when it changes With the before and after side by side, and the changed part marked.
Monity asks for access to a site only when you start watching it. Privacy policy
What it does
Change alerts that show you what changed.
How it looks, or the words
Compare screenshots pixel by pixel, or the text and numbers. Changed words always count, so a price that moves by a single digit is caught too.
“Alert me when…”
Describe what matters, such as “the price drops below €200”, and AI checks every change against it: Chrome’s built-in AI or a free model that runs on this computer.
Before and after
A slider and a side-by-side view of the two screenshots, the changed text, and a saved copy of the page as it was.
Alerts where you are
Desktop notifications, Slack, Discord, Microsoft Teams, ntfy for phone push, and webhooks.
Private by default
No account, no analytics, no tracking. Your pages, history and screenshots stay on your computer.
Steps before each check
Click a tab, type in a search box or pick from a menu before the page is read, for pages that need it.
Extension or cloud
Start in your browser, move to the cloud for 24/7.
Monity for Chrome
Free, in your browser
- Checks run in your browser while it is open, as often as every minute.
- Free, no account. Your pages and history stay on your computer.
- Watches pages you can open in your browser, including ones you are signed in to.
- Alerts as desktop notifications, or to Slack, Discord, Teams, ntfy and webhooks.
Monity in the cloud
Free plan, paid plans for more
- Checks run on Monity’s servers around the clock, also while your computer is off.
- A full-page screenshot and a saved HTML copy of every version of the page.
- Team workspaces, public status pages and uptime monitors.
- Alerts by email, Slack, Microsoft Teams, Discord, Telegram, Google Sheets, webhooks and phone push, on every plan.
- A free plan, no card needed.
FAQ
Questions about Monity for Chrome
Is Monity for Chrome free?
Yes. There is no account and no subscription: checks run in your own browser. If you want checks that keep running while your computer is off, Monity in the cloud has a free plan too.
Which browsers does it work in?
Chrome, Brave, Edge and other browsers built on Chromium install it from the Chrome Web Store. Edge asks once to allow extensions from other stores.
Do checks run when my browser is closed?
No. Checks run while the browser is open, in tabs Monity opens in the background and closes again. A check that was due while the browser was closed runs soon after it opens. For checks around the clock, use Monity in the cloud.
Where are my pages and screenshots kept?
On your computer, in the extension’s own storage. Nothing is sent to Monity. If you choose an AI engine in the cloud or add an alert destination, the changed text goes there; the privacy policy says exactly what goes where.
Why does Chrome sometimes say Monity “started debugging this browser”?
Only if you turn on exact screenshots. Monity then uses Chrome’s own screenshot tool on the tab it opened for the check, and Chrome shows that bar while it works. Without it, Monity draws the page itself: a little slower and close but not exact.
How do I get alerts on my phone?
Add ntfy as a destination in Settings and install the free ntfy app on your phone: every alert arrives as a push notification. Slack, Discord and Teams work on the phone too.
Need checks around the clock?
Monity in the cloud keeps checking while your computer is off, and keeps a full-page screenshot and a saved copy of every version of the page.
- Free plan, no card
- Every alert channel on every plan
