Open Source Python Website Monitoring Tools

Loved by smart shoppers, data journalists, research engineers, data scientists, security researchers, and more. From simply monitoring website pages that have a change (such as watching prices, and restocking notifications), to deep inspection such as PDF text support, JSON and XML monitoring, and extensive text triggers. Monitor out-of-stock products and get alerts when those products are back in stock, get restock alerts via Discord, Slack, email, and many other platforms. Using the browser steps configuration, add basic steps before performing change detection, such as logging into websites, adding a product to a cart, accepting cookie logins, entering dates, and refining searches. Monitor and track PDF file changes, and know when a PDF file has text changes. Know when your favourite product is on sale, or other special deals are announced before anyone else. Detect and monitor changes in JSON API responses.

UniFi Stock Watcher tells you the moment something you want is back in stock on the Ubiquiti Store (store.ui.com). Pick the products from the live catalog; the app checks the whole store on a timer and alerts you with a notification you can click, a sound, and the product's page in your browser. Each check reads the whole catalog, about 490 products in 8 requests, however many you watch, and a live feed shows every stock change. Out-of-stock products show the store's restock estimate and how long they've been sold out. It runs in the notification area, can start with Windows, keeps a searchable history and updates itself with signed releases. Downloads are code-signed by James Cupps; it's also in Scoop. Its themes follow Windows. US, EU, UK and Canada stores, plus a command-line watcher. No account, no API key: it reads the store's public catalog at a polite interval. Free and open source (MIT). Not affiliated with Ubiquiti. UniFi is a trademark of Ubiquiti Inc.

360 Monitoring is a web service that monitors and displays statistics of your server performance. Agent360 is OS-agnostic software compatible with Python 3.7 and 3.8. It's been optimized to have low CPU consumption and comes with an extendable set of useful plugins.

FastHX is a high-performance HTTP and WebSocket server framework designed for Haxe, enabling fast and scalable web application development.

The app sends email notification if your website is down.

A powerful, user-friendly website blocking and productivity application built with modern GTK 4 and Libadwaita. S.I.P.E.R. helps you maintain focus and productivity by blocking distracting websites with advanced features like Pomodoro focus mode, comprehensive statistics, and multi-language support.

TinyStatus is a simple, customizable status page generator that allows you to monitor the status of various services and display them on a clean, responsive web page.

CronWatch records every run of your scheduled jobs in your own database, and speaks up when one is missed, fails, gets stuck, runs slow, or costs too much. It is a library, not a service. No server to run, no account to make, and run history that stays in your database. An alert carries the error and the last lines of output to the channels you pick, and to Anthropic only if you turn on triage.