Checkmate
Checkmate: A broad free monitoring stack for teams comfortable running it themselves. Ranked #27 of 32 in Infrastructure Monitoring by our editors (7.1/10); pricing: Free plan; best for free self-hosted endpoint and service monitoring.
At a glance
- Editor score7.1 / 10
- PricingFree plan
- Best forFree self-hosted endpoint and service monitoring
- Free planYes
- Paid fromFree
- Founded2023
- Facts checked23 Sep 2026
Where it wins
- No monitor limits and all features included on the Free plan
- Covers endpoints, hosts, containers, services, DNS, SSL, and hardware
- Alerts through Slack, Teams, PagerDuty, SMS, webhooks, and more
Where it doesn't
- Self-hosted deployment puts infrastructure responsibility on your team
- No AI features are included
- Founded in 2023, it has a shorter operating history than older tools
Our verdict on Checkmate
Checkmate is an open-source monitoring platform for teams that need self-hosted visibility across websites, APIs, network targets, containers, services, and server hardware. Its coverage includes HTTP and HTTPS endpoints, ICMP ping checks for hosts and virtual machines, TCP ports, DNS, gRPC, WebSocket, game servers, PageSpeed, SSL, and Docker containers. The Capture agent adds CPU, memory, disk, network, temperature, and S.M.A.R.T. metrics. It also includes incident management, public status pages, historical data, alerting, and REST API access, making it suited to teams that want one system for uptime and infrastructure checks.
The published Free plan costs 0 and includes self-hosted deployment, no monitor limits, all features, and an AGPL-3.0 license. There are no separate feature tiers to compare, so the product's value comes from the breadth of the single offering rather than from paid-plan upgrades. Notification options include email, Slack, Discord, Microsoft Teams, Telegram, SMS, PagerDuty, and webhooks, while integrations extend to Matrix, Rocket.Chat, Pushover, ntfy, Docker, Kubernetes/Helm, and Google Lighthouse. That combination gives Checkmate a wide ecosystem fit for teams already operating these tools.
Deployment is available through Docker, Kubernetes/Helm, or source, with web, API, Linux, Windows, macOS, and self-hosted support listed. This flexibility suits teams that can manage their own monitoring environment and want control over deployment and data handling. The trade-off is operational ownership: self-hosting requires the team to handle installation, upgrades, availability, and maintenance. Checkmate is a strong fit for cost-conscious technical teams needing broad checks without monitor limits. Teams seeking a vendor-managed service, a longer-established product, or AI-assisted monitoring should consider alternatives with those priorities.
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Checkmate pricing
Checkmate fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Included hosts | Not verified |
| VM monitoring | Yes |
| Service monitoring | Yes |
| Metrics retention | Not verified |
| Deployment model | Self-hosted |
| OS coverage | Multiple |
| Agentless monitoring | No |
| Deployment | Self-hosted |
| Platforms | Linux, Windows, macOS |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 12 integrations: Email, Slack, Discord, Telegram, Twilio SMS, Pushover … |
| Pricing | Free plan |
| Website | checkmate.so |
| Facts checked | 23 Sep 2026 |
Checkmate integrations
Checkmate lists 12 integrations on its own site.
- Slack
- Discord
- Telegram
- Twilio SMS
- Pushover
- Matrix
- ntfy
- Rocket.Chat
- PagerDuty
- Microsoft Teams
- Webhooks
Alternatives to Checkmate
- ZabbixA broad monitoring platform with a free self-hosted edition and flexible deployment options.9.4
- CheckmkA broad hybrid-monitoring platform with free open-source coverage and paid automation tiers.9.3
- Datadog Infrastructure MonitoringBroad infrastructure observability for cloud-native teams, with host-based pricing.9.2
See all Checkmate alternatives →
Also Ranked In
Checkmate is ranked in 4 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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