Kuvasz Uptime

Kuvasz Uptime is an open-source, self-hosted uptime and SSL monitoring service with status pages, designed for developers, teams, and self-hosters seeking a free alternative to commercial tools like UptimeRobot.

🚀 Overview

Kuvasz is a cloud-native monitoring solution that tracks the uptime of HTTP(S) services, SSL certificates, and push-based heartbeats for cron jobs or backups. It delivers alerts via multiple channels and generates customizable status pages to keep teams or customers informed.

What problem does this project solve? It addresses limitations in free tiers of services like UptimeRobot, such as monitor limits and restricted features, by providing unlimited checks, advanced configurations, and full self-hosting control.

Who is it built for? Self-hosters, homelab users, developers, and DevOps teams managing websites, APIs, and scheduled tasks.

Why did you build it? To create a free, open-source, feature-packed tool that's easy to deploy with Docker and PostgreSQL, offering more flexibility and no vendor dependencies—maintained by Adam Kobor as a robust alternative born from community needs.

✨ Key Features

HTTP monitoring (custom intervals, headers, keywords, response codes, latency) — precise, configurable checks for any service.
SSL monitoring — daily certificate validation with expiration alerts.
Push monitors (heartbeats) — track cron jobs, backups, or non-HTTP services.
Notifications via email, Slack, Discord, Telegram, PagerDuty — per-monitor setup.
Public/private status pages — share service health transparently.
Optional: REST API, YAML IaC, Prometheus/OTLP metrics, upcoming Ping, DNS, port checks, maintenance windows.

🛠 Tech Stack

Backend: Kotlin
Frontend: Vanilla JavaScript, HTML, CSS (no bloated frameworks)
Database: PostgreSQL
Auth: Built-in user management
Hosting: Docker (single image), Helm for Kubernetes, self-hosted

👥 Who Is This For?

This project is useful for:

Developers who want to ___ self-host unlimited uptime checks without costs
Teams looking for ___ customizable notifications and status pages
Indie makers building ___ reliable homelabs or production services

📸 Screenshots / Demo

Live demo: https://demo.kuvasz-uptime.dev (Username: demo, Password: secureDemoPassword)
GitHub: https://github.com/kuvasz-uptime/kuvasz

🔥 Project Status

🟢 Actively building

Last updated: 2026-03-24

❓ FAQ

Is this project free?

Yes / Freemium / Paid / Open Source Fully free and open-source under Apache 2.0 license—always will be, no paid tiers.

Is the source code available?

Yes — link to repository https://github.com/kuvasz-uptime/kuvasz (504 stars, 47 releases, latest v3.5.1)

Can I contribute?

Star the repo and Docker image, open issues/PRs for bugs/features, provide feedback, or sponsor via Ko-fi/GitHub Sponsors to support maintenance (13 contributors welcome more).