WebSite-Watcher online: options for Mac and Linux developers

If you searched for WebSite-Watcher online, you probably work on a Mac or a Linux laptop and wanted the browser version. There isn't one. WebSite-Watcher is a Windows desktop program, and its maker, Aignes, lists Windows 10 and 11 (64-bit) and Windows Server 2016 or later as the supported systems. This explainer covers the three realistic ways to get the same job done without a Windows workstation on your desk.

Option 1: Run WebSite-Watcher in a virtual machine

Aignes's own answer for Mac and Linux users is a virtual machine. Install Windows in Parallels, VMware, VirtualBox or similar, then install WebSite-Watcher inside it.

What you get is the full program: regular-expression filters, recorded check macros for logins, Follow-Links for whole sites, Basic plugins, and reports in CSV, JSON or XML.

What it costs you:

• A Windows license, plus WebSite-Watcher's own license (€49 Personal for private use, €299 Business)
• RAM and battery on your laptop, all day
• No checks while the laptop lid is closed

On a desktop that never sleeps this is workable. On a developer laptop that moves between home, office and travel, the gaps add up.

Option 2: Put a watcher on a server

Plenty of developers solve the "always on" problem by moving monitoring to a box that is always on. The two common open source choices:

• changedetection.io, which you can self-host for free in a container, or rent hosted for $8.99 a month. It has a web interface, CSS and XPath rules, browser steps and more than 85 notification types.
• urlwatch, an open source command-line tool on PyPI that emails or prints a unified diff of each change. You decide where and how often it runs.

Both work from any operating system because you reach them over the network or SSH. The trade is that you are now running and patching a service, which is fine if you already have a homelab and less fine if you don't.

Option 3: Use a hosted monitor

The third route is to skip both the VM and the server. AyeWatch is a hosted AI monitor that you use from any browser, plus iOS and Android apps. Checks run on its infrastructure, so your laptop can be closed, offline or on a different continent.

Setting up a monitor is a paste and a sentence. For a developer, typical rules look like:

• "Tell me when this library publishes a new major version or flags a security fix."
• "Alert me when the cloud provider's status page lists an incident in eu-west."
• "Let me know if the API pricing page changes rate limits or per-call prices."

A model decides whether each change matches the sentence, so a reshuffled sidebar does not ping you.

If you want it inside your own tools, paid plans include a REST API, HMAC-signed webhooks and an MCP server for AI agents. Push alerts and the in-app feed come with every plan; Slack, Discord, email and webhooks are on paid plans.

How the three compare

What AyeWatch costs and what it skips

AyeWatch's paid plans start at $9 a month, with nothing to install or keep running. The Free Preview is three lifetime runs across up to three topics, no card.

It does not offer login macros, PDF tracking or a scraper. If you need those, the VM route keeps them.

The short answer

There is no WebSite-Watcher online. If you need its exact feature set, run it in a VM on a machine that stays on. If you mainly need reliable alerts from a Mac or Linux setup, a hosted monitor that runs in the browser is the least work.