Guides/Best free uptime monitoring

Buyer’s guide

Best free uptime monitoring

“Free” means three different things here: a free tier with limits, open-source software you host yourself, or a product that is free while it stays simple. All three are real. What matters is what you give up — monitor count, a VPS to maintain, or advanced features — to pay nothing.

1. 1. GreenCrew

   Uptime checker · Hosted

   Free while it stays simple: scheduled HTTP checks and a public status page, hosted, with nothing to install.

   Pricing: Free while we keep it simple.

   See GreenCrew →Visit GreenCrew

2. 2. UptimeRobot

   Uptime checker · Hosted

   The free tier that defined the category — 5-minute checks and a status page, with paid plans waiting when your monitor count climbs.

   Pricing: Free tier, then inexpensive paid plans as monitor count grows.

   GreenCrew vs UptimeRobot →Visit UptimeRobot

3. 3. Uptime Kuma

   Uptime checker (self-hosted) · Self-hosted

   Free forever because you host it. You pay in a VPS, backups, and the risk that the monitor dies with its own server.

   Pricing: Free software. You pay the VPS, the backups, and the time.

   GreenCrew vs Uptime Kuma →Visit Uptime Kuma

4. 4. StatusCake

   Uptime checker · Hosted

   A freemium uptime plan that includes SSL and domain checks, with the usual ceiling before you upgrade.

   Pricing: Freemium uptime plans. SSL and domain tests sit beside HTTP, not behind APM.

   GreenCrew vs StatusCake →Visit StatusCake