Hey Product Hunt. I'm James, and I built PageAlert because I was tired of manually refreshing websites to check if something changed. I wanted to track refurbished MacBooks on Apple's site, but every monitoring tool I tried needed CSS selectors and they'd break the moment the page layout changed. So I built PageAlert. You paste a URL, describe what you're looking for in plain English (like "MacBook Pro M3 under $1500"), and AI handles the rest. It extracts the data, understands the page, and emails you when your conditions are met. Some things people are using it for: - Price drop alerts on any store - Restock notifications (sneakers, consoles, etc.) - New job listings matching specific criteria - Real estate listings in a target area It's completely open source (MIT) — you can check out the full codebase on GitHub. The stack: Next.js, Convex, Playwright, Claude AI, and Polar for billing. Free tier includes 3 monitors with no credit card required. I'd like to hear what you'd monitor with it — and happy to answer any questions about the build. Thank you

PageAlert

Monitor any website. Just describe what you want

Monitor any website. Just describe what you want