EasyMonitor
Open-source uptime monitoring tool with quorum-based alerts, custom status pages, and multi-region probes. Runs on a $5 VPS with unlimited monitors and no per-seat pricing.
EasyMonitor is an open-source alternative to:

Multi-region uptime monitoring you can self-host
EasyMonitor is an open-source, self-hosted uptime monitoring solution that uses multi-region probes and quorum-based alerts to eliminate false positives. Deploy with a single docker compose up and gain full control over your monitoring data.
Key Features
- Multi-region probes: Deploy lightweight Go probes on any server you own via Tailscale, Cloudflare Tunnel, or VPN
- Quorum-based alerts: Cross-probe voting eliminates false alarms from single flaky vantage points
- Unlimited monitors: No tier caps or per-monitor pricing—just unlimited monitoring on your hardware
- Multi-channel alerts: Email, Pushover, Slack, Discord, and webhooks with per-user channel preferences
- Custom status pages: Public, unlisted, or private pages with custom domains, themes, and auto-HTTPS
- TimescaleDB integration: Automatic compression (90%+ smaller) and configurable retention for scalable time-series data
- Teams & projects: Role-based permissions and per-user notification preferences
- One-command install: Interactive setup with automatic DNS configuration and secret generation
Tech / Self-Hosting
- Stack: Laravel 12 (PHP 8.4), PostgreSQL 18, TimescaleDB 2.26, Redis 7 Streams, Go 1.24 probes
- Deployment: Single Docker Compose setup with Caddy for automatic TLS
- Hardware requirements: ~2GB RAM for basic use, $5 VPS sufficient for hundreds of monitors
- License: MIT
- Probe binary: ~10MB lightweight Go binary deployable anywhere
Why self-host? SaaS monitoring vendors can become blind spots during their own outages. EasyMonitor puts the watcher under your control with unlimited monitors, custom domains, and enterprise-grade features at no cost.