Argus Page Monitor - Website Change Detector

Monitor any web page for changes. Get notified via ntfy, Discord, or webhooks. Pick specific elements. Private.

Monitor any web page for changes. Get notified instantly via browser notifications, ntfy, Discord, or custom webhooks. Argus watches pages in the background and alerts you when something changes — prices drop, stock comes back, job posts appear, status pages update, or competitors change their pricing. 🦚 WHY ARGUS ✅ Runs locally in your browser — no cloud, no account, your data stays on your device ✅ Notify via ntfy, Discord, or any webhook — Slack, Telegram, IFTTT, and more ✅ Modern UI — see all your monitors and their status at a glance ✅ Works on sites that block server-based monitors (uses your browser session and cookies) ✅ Pro from just $4/mo or $29/yr — free plan available ⚡ FEATURES 🆓 Free: • Monitor up to 3 pages • 30-minute check intervals • Element selector on 1 monitor — try precision monitoring for free • Browser notifications + 1 external channel (ntfy or Discord) • 1 custom webhook • 7-day change history 💎 Pro ($4/mo or $29/yr): • ♾️ Unlimited monitors • ⌛️ Check as often as every 5 minutes • 🎯 Element selector on every monitor • 📡 Multi-channel notifications — route each monitor to a different channel • 🔗 Unlimited custom webhooks — send to Slack, Telegram, IFTTT, Zapier, and more • 📋 90-day change history 💡 USE CASES 🛒 Price monitoring — track prices on Amazon, airline tickets, SaaS pricing pages 💼 Job hunting — get notified when new positions are posted 📦 Stock/inventory alerts — know when sold-out items come back 🚨 Status page monitoring — AWS, Stripe, or any service health page 🔍 Competitor tracking — watch competitors' pricing and feature pages 📰 News & forums — track Reddit threads, Hacker News, government postings 🔧 HOW IT WORKS 1️⃣ Navigate to any page and click the Argus icon 2️⃣ Click "+ Monitor this page" 3️⃣ Set your check interval and notification channels 4️⃣ Argus checks the page in the background and notifies you when it changes Click "Pick" to select a specific element on the page for precision monitoring. Free users get 1 element selector, Pro users get unlimited. 🔔 NOTIFICATIONS • Browser notifications (built-in) • 📱 ntfy.sh — free, open-source push notifications to your phone • 💬 Discord webhooks — send alerts to any Discord channel • 🔗 Custom webhooks — POST JSON to any URL (Free: 1, Pro: unlimited) 🔒 PRIVACY Argus runs entirely in your browser. Pages are fetched locally — no data is sent to our servers. We don't collect analytics, browsing data, or personal information. Payment is processed securely by Stripe. 💌 SUPPORT Questions or feedback? Email lichen_dev@proton.me Peacock icon: Noto Emoji by Google (SIL OFL 1.1) — Changelog — v1.0.0 — Initial release v1.0.1 — Title update, help screen improvements