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From FreeFree plan

Self-hosters, homelab users and technical teams that want unlimited monitors for free and are comfortable running and backing up their own monitoring server.

Quick overview

Pricing
Free (open source, self-hosted)
Plans
Free and open source under the MIT license; you pay only for the server you run it on. Installs with Docker Compose, Docker, or Node.js with PM2 (NFS file systems are not supported). Latest stable release 2.5.6, published October 9, 2026. No paid plan, SLA or vendor support.
G2 rating
Not yet verified
Comparisons
Featured in 1 comparison

Key features

  • HTTP(S), keyword, JSON query, TCP, ping, DNS, push (heartbeat), WebSocket and gRPC monitors
  • Database monitors for MySQL/MariaDB, PostgreSQL, SQL Server, Oracle, MongoDB and Redis
  • Docker container, SMTP, SNMP, NTP, MQTT, Kafka and RabbitMQ monitors, plus a real browser monitor
  • Intervals down to 20 seconds
  • Notifications through 90+ services, including Telegram, Discord, Slack and email
  • Multiple status pages mapped to your own domains

Pros

  • Free and MIT-licensed, with no monitor limits
  • Very wide range of monitor types, including databases and message queues
  • 90+ notification services and unlimited status pages
  • Polished web interface

Cons

  • Checks run from wherever you host it, so you get one location unless you add Globalping
  • You are responsible for its own uptime, backups and upgrades
  • No SLA or vendor support

Uptime Kuma in our comparisons