Uptime Monitoring

Alternatives to STS

Compare healthier or more active tools in the same use case using ToolVitals public evidence.

Why compare

Signals behind this alternatives page

  • STS currently shows at least one risk or watch signal in ToolVitals data.
  • The project is active, but some maintenance signals are mixed.
  • Health score: 59/100.
  • Shipping score: 45/100.

Switching guide

Best alternatives by need

Best overallUptime Kuma

Highest organic ToolVitals fit for this use case.

Healthier optionsUptime Kuma, Checkmate, Kener, OpenStatus

Stronger current public-health signal than STS.

Verified open/source-visibleUptime Kuma, Checkmate, Kener, OpenStatus

Useful when portability and inspectability matter.

Trust note: Sponsors and affiliate links are separate from rankings. ToolVitals does not let monetization change scores, risk labels, organic ordering, or evidence display.

Ranked alternatives

Best-fit uptime monitoring options

12 tools
02

Checkmate

Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. Don't be shy, join here: https://discord.com/invite/NAb6H3UTjK :)

Active
Health95
Shipping94
Score95
Confidence90
Stars11k
ModeSource-visible project
04

OpenStatus

🫖 Status page with uptime monitoring & API monitoring as code 🫖

Active
Health92
Shipping87
Score90
Confidence90
Stars9.2k
ModeSource-visible project
05

Kuvasz

Kuvasz (pronounce as [ˈkuvɒs]) is an open-source uptime and SSL monitoring service, with multiple notification channels, status pages, IAC support via YAML, Prometheus integration, a complete REST API and many more!

Active
Health90
Shipping91
Score90
Confidence90
Stars668
ModeSource-visible project
07

OpsKnight

Open-source platform for on-call management, incident response, and status pages.

Active
Health89
Shipping93
Score91
Confidence90
Stars58
ModeSource-visible project
08

Healthchecks

Open-source cron job and background task monitoring service, written in Python & Django

Active
Health85
Shipping89
Score86
Confidence90
Stars10.5k
ModeSource-visible project
11

Yet Another Status Page

A modern, open-source status page built with Next.js and PayloadCMS, designed for flexible and reliable infrastructure monitoring.

Active
Health85
Shipping85
Score85
Confidence90
Stars39
ModeSource-visible project