NetMap
NetMap: An open-source toolkit combining topology, discovery, IPAM, inventory, and monitoring. Ranked #33 of 45 in Network Topology Mapping Software by our editors (5.8/10); pricing: Open source; best for small teams managing self-hosted networks.
At a glance
- Editor score5.8 / 10
- PricingOpen source
- Best forSmall teams managing self-hosted networks
- Paid fromFree
- Automated discoveryYes
- Facts checked20 Sep 2026
Where it wins
- Editable topology canvas with links, VLANs, clusters, annotations, and sites
- Combines Nmap discovery, device inventory, IPAM, monitoring, and syslog
- Exports to PDF, CSV, and JSON; supports database backup and restore
Where it doesn't
- Self-hosted deployment requires operating the software environment
- Stated fit centers on solo users and small environments
- Support channels are limited to documentation
Our verdict on NetMap
NetMap is an open-source, self-hosted network visibility and operations tool aimed at home labs and small environments. It brings topology mapping together with device inventory, IP address management, monitoring, discovery, and firewall syslog ingestion. The topology canvas supports device links, VLANs, logical clusters, annotations, and named sites, while the inventory is searchable and supports filters, bulk editing, device types, and custom icon packs. This combination suits small teams that want a single place to map and track their network rather than a topology-only application.
Its operational scope is broader than the canvas. Discovery uses bundled Nmap, with optional SNMPv2c queries for routers or Layer 3 switches; data sources also include DHCP lease files and syslog over UDP or TCP. Monitoring covers ICMP, TCP, HTTP/HTTPS, and DHCP-aware checks with uptime tracking. IPAM handles subnets, VLANs, DHCP leases, reservations, and external allocations. Alerts can go through email, chat, webhooks, and notification services, and firewall syslog messages can be searched and linked to inventory. Network utilities include ping, traceroute, TCP connect, DNS lookup, SNMP probe, and a subnet calculator.
NetMap runs in a single Docker container containing its web UI, API, database, and syslog receiver, without cloud accounts or subscriptions. The repository describes it as self-hosted with no subscriptions; the product is open source, but no commercial plan structure is documented. It also provides role-based access control, PDF, CSV, and JSON exports, and database backup and restore. Its stated solo and small-team fit, plus documentation as the support channel, make it a more natural choice for operators comfortable managing self-hosted tools than for organizations seeking a vendor-supported, broader-scale platform.
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NetMap pricing
NetMap fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Automated discovery | Yes |
| Dependency mapping | Not verified |
| Topology views | Mixed |
| Deployment | On-premises |
| Device limit | Not verified |
| Network data sources | Nmap, SNMPv2c, DHCP lease files, and syslog over UDP/TCP using RFC-5424 or RFC-3164 |
| Deployment | Self-hosted |
| Platforms | Web |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 16 integrations: pfSense, OPNsense, UniFi, Nmap, SNMPv2c, ntfy … |
| Pricing | Open source |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
NetMap integrations
NetMap lists 16 integrations on its own site.
- pfSense
- OPNsense
- UniFi
- Nmap
- SNMPv2c
- ntfy
- Telegram
- Signal
- Email SMTP
- Discord
- Slack
- Gotify
- Pushover
- Google Chat
- Generic webhooks
- Apprise
Alternatives to NetMap
- SolarWinds Network Topology MapperA dedicated mapper for teams that need automated discovery, change detection, and exportable diagrams.9.2
- ManageEngine OpManagerSelf-hosted network monitoring with device discovery, Layer 2 maps, traffic analysis, and alerts.9.0
- Datadog Network Performance MonitoringPairs topology and path views with traffic monitoring and application correlation.8.9
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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