Glassmkr
Glassmkr: Free monitoring for Linux hardware, with hosted simplicity or self-hosted control. Ranked #1 of 59 in Hardware Monitoring Software by our editors (9.3/10); pricing: Free plan; best for free server fleet monitoring.
At a glance
- Editor score9.3 / 10
- PricingFree plan
- Best forFree server fleet monitoring
- Free planYes
- Paid fromFree
- Remote monitoringYes
- Facts checked19 Sep 2026
Where it wins
- Covers SMART, IPMI, RAID, ZFS, and operating-system metrics
- Includes alert remediation, multiple notification channels, and AI analysis
- Offers hosted or self-hosted deployment with a full read/write API
Where it doesn't
- Hosted Glassmkr is limited to 10 nodes per account
- Self-hosting requires databases, upgrades, backups, and TLS
- Monitoring is centered on Linux and bare-metal server environments
Our verdict on Glassmkr
Glassmkr is an open-source monitoring product for Linux and bare-metal servers. An agent collects hardware and operating-system metrics, including CPU, memory, network, security signals, SMART disk health, IPMI sensors and system event logs, RAID, and ZFS. Its dashboard evaluates alert rules, shows server health, provides remediation guidance, and supports optional AI analysis. It is suited to teams monitoring physical server fleets that need detailed hardware visibility without a software license fee.
The published plans show two free deployment paths. Hosted Glassmkr provides a dashboard operated by Glassmkr, supports up to 10 nodes per account, and retains history for 90 days. It includes all alert rules and notification channels, a full read and write API, and AI analysis. Notifications can be routed through Email, Telegram, Slack, Discord, PagerDuty, and webhooks. This makes the hosted option a straightforward fit for smaller server groups that want managed access and broad alert delivery without operating the monitoring stack.
Self-hosted Glassmkr is a free, one-time option built on an AGPL-3.0-only stack with no node limit. Telemetry remains on the user's network, while alert rules, notification channels, the full API, and optional AI analysis remain available. The trade-off is operational responsibility: users must operate the databases and handle upgrades, backups, and TLS. The product also focuses on Linux and bare-metal environments rather than presenting a broad multi-platform scope. Choose Glassmkr for hardware-level monitoring, flexible deployment, and automation through its API; choose another product if a managed service for more than 10 hosted nodes or a lower-maintenance self-hosted setup is the priority.
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Glassmkr pricing
All 2 Glassmkr plans and prices →
Glassmkr fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported platforms | linux, api, self_hosted |
| Remote monitoring | Yes |
| Monitored device limit | 10 devices |
| Sensor history | 90 days |
| Alert channels | email, Telegram, Slack, Discord, PagerDuty, webhooks |
| Custom sensor support | Not verified |
| Deployment | Desktop, Self-hosted |
| Platforms | Linux |
| Integrations | 6 integrations: Email, Telegram, Slack, Discord, PagerDuty, Webhooks |
| Pricing | Free plan (source) |
| Website | glassmkr.com |
| Facts checked | 19 Sep 2026 |
Glassmkr integrations
Glassmkr lists 6 integrations on its own site.
- Telegram
- Slack
- Discord
- PagerDuty
- Webhooks
Alternatives to Glassmkr
- Supermicro SuperDoctor 5A free, focused monitor for Supermicro server health, alerts, logs, and remote power control.9.2
- HWiNFOA deep Windows diagnostics suite for users who need detailed sensors, reports, and alerts.9.1
- NVIDIA Data Center GPU ManagerA specialized Linux toolkit for operating NVIDIA GPUs across data-center and cluster environments.8.8
See all Glassmkr alternatives →
Glassmkr vs the competition
- Glassmkr vs Supermicro SuperDoctor 5
- Glassmkr vs HWiNFO
- Glassmkr vs NVIDIA Data Center GPU Manager
- Glassmkr vs smartmontools
- Glassmkr vs MSI Afterburner
- Glassmkr vs IPMI Monitor
Compare Glassmkr with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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