Open source RMM: the 2026 landscape

An open source RMM is a remote monitoring and management platform whose source code is publicly available under a license that permits inspection, modification, and self-hosting. It gives IT teams and MSPs the same core capabilities as commercial RMM (remote access, monitoring, patching, and automation) without per-device fees or vendor lock-in, and with the ability to audit exactly what the agent running on every managed device is doing.

The leading open source RMM projects in 2026 are MeshCentral (mature remote management and remote desktop), TacticalRMM (community-driven RMM with strong scripting, built on top of MeshCentral), NetLock RMM (German-built AGPL platform with whitelabel and a free Community Edition up to 25 devices), and Breeze (a full-platform RMM with 64 modules and a built-in AI operator that works the fleet under a risk engine you control). Each targets a different level of scope and geography.

Yes. Breeze is released under the AGPL-3.0 license. The complete source code is available on GitHub, and you can self-host the entire platform with no per-device fees, no user caps, and no feature gating. A managed cloud option is also available in beta (US and EU) for teams that prefer not to run the infrastructure themselves.

Yes. All four leading open source RMMs (MeshCentral, TacticalRMM, NetLock RMM, and Breeze) can be self-hosted at no licensing cost (NetLock's Community Edition caps at 25 devices on the free tier). Your only expenses are infrastructure: a VPS with 1–8 GB of RAM (depending on the platform) typically costs $10–100 per month and handles 200–1,000 endpoints. That is usually an order of magnitude cheaper than commercial RMM per-device pricing at comparable scale.

MeshCentral is a remote management and remote desktop platform: excellent remote control, no monitoring or patching. TacticalRMM is built on top of MeshCentral and adds script-based monitoring, alerting, and Windows patch management. NetLock RMM is an independently developed German AGPL-3.0 project with multi-tenancy, security baseline management, whitelabel, and a free Community Edition up to 25 devices. If you only need remote access, MeshCentral fits. If you need script-heavy monitoring, TacticalRMM. If you need EU data sovereignty and whitelabel, NetLock.

Yes, and auditability is often a compliance advantage over closed-source alternatives. Because you can inspect and build the agent from source, you can verify exactly what it does on managed endpoints, a meaningful reduction in supply-chain risk. The security responsibility shifts to you: you own host hardening, TLS, backups, and access control. With standard operational discipline, open source RMM meets the security requirements of HIPAA, SOC 2, and CIS Controls engagements.

MeshCentral runs comfortably on a 1–2 GB RAM VPS and handles hundreds of agents. TacticalRMM recommends 4–8 GB RAM due to its Django + PostgreSQL + Redis + Celery + MeshCentral stack. NetLock RMM runs on a .NET + MySQL stack and needs roughly 2–4 GB RAM for the Community Edition at 25 devices. Breeze runs on comparable resources to TacticalRMM with a simpler single-PostgreSQL architecture. For production workloads of 200–500 endpoints, budget $50–100 per month for a properly sized VPS.

Commercial RMM makes sense when you lack the technical depth or desire to manage hosting infrastructure, when you need vendor-backed SLAs for uptime and support, when your PSA integration requirements are specific to a particular vendor ecosystem, or when per-device cost is not a material factor in your business economics. If any of those apply, the operational simplicity of a managed commercial platform can outweigh the higher cost.

NetLock RMM is an open source (AGPL-3.0) remote monitoring and management platform built by a German developer, with active development and a public GitHub repository. The Community Edition is free and self-hosted with a 25-device limit, covering the full core platform: multi-tenancy, remote shell and screen control, antivirus and firewall monitoring, security baseline enforcement, jobs and sensors, and whitelabel support. The paid Professional tier (€55/month at time of writing) lifts the device limit and adds SLA support, and a cloud-hosted option is also available.

Yes, but check what kind of free you are being offered. Commercial free RMM tiers are capped acquisition funnels: a device limit (Action1’s free tier covers 200 endpoints, NetLock’s Community Edition caps at 25 devices) or gated features, with the upgrade conversation built in. Open source RMM is free at the license level: Breeze is AGPL-3.0 with unlimited devices, unlimited technicians, and no feature gating, and MeshCentral and TacticalRMM are similarly uncapped. Your only real cost is infrastructure and the time to run it, typically a $10–100/month VPS depending on fleet size.

It depends on the scope you need, and we are not neutral here (we build Breeze). If you only need remote access, MeshCentral is the mature choice. If you want script-driven monitoring and Windows patching, TacticalRMM. If you need EU data sovereignty and whitelabel under 25 devices, NetLock RMM. If you need the full commercial RMM scope self-hosted (monitoring, patching across Windows, macOS, and Linux, compliance automation, SNMP, backup verification) plus a built-in AI operator, Breeze is the only open source project that covers it. All four deploy on your own infrastructure; Breeze runs from a Docker Compose file with a single PostgreSQL database.

Yes. The licenses in this space (Apache-2.0 for MeshCentral, AGPL-3.0 for NetLock RMM and Breeze) all permit commercial use, so an MSP can run them to manage paying clients with no licensing fee. The AGPL’s one real obligation kicks in if you modify the software and offer it to others as a network service: you must publish your modifications. Running Breeze as-is to manage client fleets does not trigger that, and neither does self-hosting it internally. What is not free is the operation: hosting, updates, and backups are on you unless you choose a managed option.