Changedetection.io is an excellent free, open-source, self-hosted monitor for developers who want full control and can run their own infrastructure. Monity is the managed, business-ready alternative — plain-English AI setup, a reliable engine, AI change summaries, and a native mobile app, with nothing to host or maintain.
Monity is an AI-powered website change monitoring platform for teams. Set up monitors in plain English, receive source-linked alerts, and route work to Slack, Teams, email, webhooks, or your API.
ChangeDetection.io is a website change detection tool. It monitors web pages for updates and sends alerts when content changes. Features, limits, and check frequency vary by plan.
Detailed capability checks across setup, monitoring, alerts, security, and pricing.
Compare plans side by side. Pricing changes, so verify each vendor's current pricing page before purchase.
Pricing reflects the data entered for this comparison and may change. Verify published vendor pricing before purchase.
If you are self-hosting ChangeDetection.io, migration to Monity involves moving your URL list and re-creating notification channels:
FAQ
The self-hosted version is free (MIT licence) but you pay with server time and maintenance. Monity is a flat monthly fee with no infrastructure overhead.
No. Monity is fully managed — there’s no Docker, server, or upgrade to maintain. You describe what to watch and Monity runs it in the cloud.
Yes. Monity supports browser actions in all plans (clicks, logins, forms) and secure login/2FA monitoring via persisted browser session (on demand).
Monity is UK-based with a DPA on request and source-linked, timestamped change history — managed hosting without giving up an audit trail.
Start free and bring over the pages you already watch in ChangeDetection.io. Monity keeps the source, summary, and routing attached to every alert.
Pricing, security, or scoping - pick a route and you will land in a real person's inbox.