Better Stack checks your endpoints from just 4 regions on a round-robin rotation under its standard plan, while Atlassian Statuspage adds per-subscriber and extra-status-page fees once a team scales past the base tier. Neither lets you point a health check at an internal service sitting behind a VPN or private subnet, since both are closed-source SaaS platforms running entirely on infrastructure you don't control. OpenStatus solves that gap with an 8.5MB self-hosted Docker image built specifically for running private-location probes inside your own network boundary, and Gatus takes the same idea further by defining every health check in a single version-controlled YAML file you can review in a pull request. Uptime Kuma and Peekaping go a step lighter, storing every heartbeat in a SQLite file on your own disk, while Checkmate's Capture agent pulls CPU, RAM, and disk metrics straight off your servers instead of only pinging a public endpoint.
| Name | Main Category | Sub-Category | Target Alternative | Free Tier Summary | Self-Hostable? | Short Description | Primary Link |
|---|---|---|---|---|---|---|---|
Upptime | DevOps & Application Hosting | GitOps Status Page (Serverless) | Atlassian Statuspage / Instatus | 100% Free - Self-Hosted (MIT License; runs on your own GitHub Actions minutes) | Yes - Binary | Runs your entire uptime monitor and status page on GitHub's own infrastructure: Actions schedule the checks, Issues become incident threads, and Pages hosts the static status site, so there's no server of your own to patch or pay for. Response-time history is committed straight to git, giving you a version-controlled audit trail of every check. | |
OpenStatus | DevOps & Application Hosting | Uptime Monitoring & Status Pages (Monitoring-as-Code) | Better Stack | 100% Free - Self-Hosted core (AGPL-3.0); managed cloud plans from $30/mo | Yes - Docker | Bundles branded status pages with uptime monitoring in one AGPL-3.0 codebase, checking HTTP and GraphQL endpoints from up to 28 regions across 3 cloud providers on the managed cloud. The self-hosted build ships as an 8.5MB Docker image built for running private-location probes behind your own firewall, with monitors and alerts definable as YAML or Terraform. | |
Gatus | Product Analytics & Monitoring | Config-as-Code Health Checks & Status Pages | Better Stack / Atlassian Statuspage / Checkly / Datadog Synthetics | 100% Free - Self-Hosted (Apache 2.0 License) | Yes - Docker / Kubernetes | Developer-oriented Go binary that executes declarative HTTP, ICMP, TCP, DNS, gRPC, and SSH health checks defined in YAML. Evaluates responses against custom condition assertions (status codes, body patterns, latency thresholds) and automatically renders the results on a public status page while routing alerts to 25+ notification channels. | |
Uptime Kuma | DevOps & Application Hosting | Uptime Monitoring & Status Pages | Better Stack / UptimeRobot / Pingdom | 100% Free - Self-Hosted (MIT License) | Yes - Docker | Single Docker container that monitors HTTP(s), TCP, DNS, Docker containers, and 10+ other check types at 20-second intervals, storing every heartbeat in a local SQLite database with no external dependencies. Ships with multi-domain status pages and 90+ built-in notification integrations, from Slack to Telegram. | |
Checkmate | DevOps & Application Hosting | Uptime & Infrastructure Monitoring | Better Stack / Datadog Synthetic Monitoring | 100% Free - Self-Hosted (AGPL-3.0 License) | Yes - Docker | MERN-stack platform (React, Node.js, MongoDB) that tracks uptime, response times, and server hardware metrics from a single Docker image, using an optional agent called Capture to pull CPU, RAM, and disk stats from remote servers. Ships with an incident log and configurable alert thresholds out of the box. | |
Cachet | DevOps & Application Hosting | Status Page / Incident Communication | Atlassian Statuspage | 100% Free - Self-Hosted (MIT License) | Yes - Docker | Laravel-based status page system for listing service components, publishing Markdown incident updates, and charting uptime metrics on a fully brandable public page. It doesn't run health checks itself, instead accepting updates through its JSON API from whatever monitoring tool you point at it. | |
Peekaping | DevOps & Application Hosting | Uptime Monitoring & Status Pages | Uptime Kuma / Better Stack | 100% Free - Self-Hosted (MIT License) | Yes - Docker | Go-and-React uptime monitor built as a more extensible successor to Uptime Kuma, with an API-first architecture so every monitor, notification, and status page can be managed through Terraform or the REST API. Supports 15+ check types and lets you choose SQLite for a quick start or PostgreSQL/MongoDB for production workloads. |
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