PatchMon

PatchMon is a central patch-monitoring and management dashboard for Linux, FreeBSD, and Windows server fleets. It suits infrastructure teams that need approvals, scheduling, audit evidence, and compliance scoring around patch work. The main qualification is that automated Windows deployment is still on the roadmap.

Overview

PatchMon combines fleet visibility with governed patch operations. Teams can define policies, validate them with dry runs, require approval, and retain a record of each execution. OpenSCAP CIS scans add a compliance view rather than leaving patch status and benchmark evidence in separate tools.

The hybrid deployment model is practical for organizations with different operating preferences. Community Edition is self-hosted under AGPLv3, so you run the server and own updates, backups, and uptime. Cloud tiers remove that operational burden, while PatchMon's stated security controls include TLS in transit, AES-GCM for sensitive data at rest, customer-scoped keys, and tenant isolation. PatchMon Ltd is not ISO 27001 certified, although its hosting provider holds ISO/IEC 27001 and BSI C5 Type 1 certification.

Key features

Controlled patching

Policies support immediate, delayed, or fixed-time execution, with approval workflows and assignment to individual hosts or host groups. Dry-run validation is valuable where administrators must check scope before touching production. Automated deployment is available on Linux and FreeBSD; Windows systems can be monitored, but Windows deployment is not currently provided.

Accountability and compliance

Every patch run captures the initiating and approving users, timestamps, policy information, affected packages, and command output. That record is suited to change review and post-incident investigation. OpenSCAP CIS scans show per-rule results, severity, remediation guidance, and score tracking, giving security teams actionable benchmark evidence instead of a single pass/fail indicator.

Connections and agent design

Integrations cover Proxmox LXC, Ansible, GetHomepage, REST API, Docker, OpenSCAP, Claude, OpenAI, Slack, Discord, SMTP, webhooks, ntfy, SSH, and Windows RDP. Agents connect outbound over WebSocket with TLS, and monitoring does not require root, reducing the privilege needed for routine observation. PatchMon does not provide configuration management, so it is not a replacement for a broader configuration-control platform.

Pricing

The Community Edition costs nothing, is free forever, and is licensed under AGPLv3. It is the choice for teams willing to operate their own service; the trade-off is responsibility for hosting, updates, backups, and availability.

Starter costs $1 per endpoint per month, billed monthly. Annual billing is ten months of that monthly rate, effectively giving two months free. It includes core patch monitoring, up to three users, and email and Discord support. Choose it for basic oversight; it does not include the manual runs, scheduling and approval workflow, Docker monitoring, or unlimited users listed for Plus.

Plus costs $2 per endpoint per month, with the same annual billing formula. It adds manual patch runs, scheduling and approval workflow, and Docker monitoring, and allows unlimited users. This is the sensible Cloud tier for teams that need governed operations rather than status reporting alone.

Max costs $3 per endpoint per month, again with annual billing at ten months of the monthly rate. It adds browser SSH and RDP, compliance scanning, and a bring-your-own-AI terminal assistant, while retaining unlimited users. It fits organizations that want administration and benchmark work in the same subscription.

PRO uses custom pricing and adds professional services, vendor support, custom deployment, architecture, training, and priority support. Cloud trials last 14 days with the full Plus feature set, require a card at signup, and incur no charge when cancelled before the trial ends. Support varies by tier: Starter has email and Discord, Plus adds Slack, and Max also includes phone support.

Platforms

PatchMon supports API, Linux, self-hosted, web, and Windows access, with server coverage for Linux, FreeBSD, and Windows. Deployment automation currently applies to Linux and FreeBSD, making mixed fleets workable only when Windows patch installation is handled elsewhere.

Who it's for

It is aimed at infrastructure teams managing mixed server fleets, from small startups to enterprises with up to a thousand hosts. Community Edition suits organizations with in-house operations capacity and a preference for open-source self-hosting. Starter suits small teams needing inexpensive monitoring, while Plus is better for formal approval and scheduling. Max is for teams combining patch governance, compliance scans, and remote administration. Organizations requiring configuration management or one workflow that deploys Windows patches today should choose another product.

Pros and cons

Pros

• Strong change control: scheduling, dry runs, approvals, and host scoping reduce the risk of uncontrolled updates.
• Useful evidence: detailed run records and per-rule CIS results support audits and remediation work.
• Flexible operating model: a free self-hosted edition sits alongside low per-endpoint Cloud tiers.
• Broad integration surface: API, automation, messaging, container, access, and AI connections can fit existing workflows.

Cons

• No Windows deployment yet: Windows fleets can be monitored but not patched automatically through PatchMon.
• Self-hosting has real overhead: Community Edition leaves uptime, backups, updates, and server operation to the customer.
• No configuration management: teams needing broader state enforcement require another system.
• Certification limitation: PatchMon Ltd itself is not ISO 27001 certified.

Alternatives

For a wider directory of automation tools, see IT Automation Software, or compare dedicated products in Patch Management Software.

ManageEngine Patch Manager Plus is the better fit when you need Android, iOS, macOS, and Windows coverage plus a free edition capped at 20 workstations and five servers, with a paid Professional Cloud option.

ManageEngine Mobile Device Manager Plus suits teams prioritizing mobile management, offering a fully featured free edition for up to 25 devices.

OPSI is an option for unlimited-device community deployment with one worker process, or a smaller installation capped at 30 devices on its Basic plan.

CFEngine is a choice for GNU GPL Linux management with community support, with Enterprise available on custom terms.

Rundeck fits small teams seeking free runbook automation, while PagerDuty Runbook Automation targets a commercial workflow.

Salt is the straightforward free, Apache 2.0 open-source option for API, Linux, macOS, self-hosted, and Windows environments.

AWS Systems Manager State Manager is appropriate when AWS-native state enforcement is the priority and no additional charge is preferred, subject to its limits.

Foreman is a free, open-source self-managed installation for API, Linux, and web environments.

Verdict

Choose PatchMon when your team needs auditable, approval-driven patching and CIS compliance visibility across Linux and FreeBSD, with a low-cost Cloud path or an AGPLv3 self-hosted edition. Look elsewhere if automated Windows deployment or configuration management is a non-negotiable requirement today.