Uptime Kuma
Founded 2021 · Peak: 62,000+ GitHub stars
Why Uptime Kuma mattered
The best open-source uptime monitor in the world. Self-hostable, beautiful, free. But nobody offers a hosted version. Pingdom charges $15/month, UptimeRobot's free tier is severely capped.
How SENTINEL brings it back
SENTINEL Monitor is hosted Uptime Kuma: free hosted website monitoring. 5-minute checks on Free, 1-minute on Starter+. Email alerts, webhooks, uptime % tracking.
Why this matters in 2026
Big Tech killed every great community-driven internet tool between 2008 and 2024. Uptime Kuma was one of them. SENTINEL is the unified replacement — 10 intelligence modules in one AI-powered platform, running on owned infrastructure (no AWS, no Google Cloud), free forever for personal use, no third-party tracking, no behavioral ads. Built by Oblivion Technologies LLC.
All AI runs on local Llama and Qwen models — no OpenAI bills, your data never leaves our server. Stripe-powered subscriptions for paid tiers, free forever for the basics.