phpIPAM vs NIPAP vs NetBox: Best Self-Hosted IP Address Management (IPAM) 2026

Managing IP addresses across growing networks is one of those tasks that seems simple until a spreadsheet starts conflicting with reality. When your organization runs dozens of subnets, VLANs, and DHCP scopes, a proper IP Address Management (IPAM) system stops being a luxury and becomes a necessity.

The commercial IPAM market is dominated by expensive enterprise platforms from Infoblox, SolarWinds, and BlueCat. But three mature open-source alternatives offer comparable functionality without licensing costs: phpIPAM, NIPAP, and NetBox. Each takes a different approach to network source-of-truth management, and the right choice depends on your team’s size, network complexity, and automation needs.

Why Self-Host Your IP Address Management?

IP address management sits at the foundation of every network. Every device, service, and endpoint needs an IP. When this information lives in scattered spreadsheets, Slack messages, or individual engineers’ heads, things break:

• IP conflicts: Two devices assigned the same address cause outages that are painful to debug
• Wasted address space: Untracked allocations leave entire subnets underutilized
• Compliance gaps: Auditors need documented IP assignments; ad-hoc tracking won’t pass
• Automation dependency: Infrastructure-as-Code pipelines (Terraform, Ansible) need a reliable source of truth for IP allocation
• No vendor lock-in: Self-hosted IPAM means your network data stays under your control, with full API access and no recurring subscription fees
• Integration flexibility: Open-source IPAM tools integrate directly with your existing monitoring, DHCP, DNS, and CI/CD stack

For teams managing more than a handful of subnets, the ROI of a dedicated IPAM system becomes obvious within weeks. For related reading on building a self-hosted network infrastructure, see our DHCP server comparison and network configuration backup guide.

Quick Comparison Table

phpIPAM — Lightweight Web-Based IPAM

phpIPAM is the most straightforward IPAM solution of the three. It provides a clean web interface for managing subnets, IP addresses, VLANs, VRFs, and devices. Its strength is simplicity — you can have it running in minutes and your team can start using it immediately without training.

Key Strengths

• Automatic IP discovery: phpIPAM can scan subnets via ping, ARP tables, and SNMP to find which addresses are actually in use. This is invaluable for migrating from spreadsheets — run a scan and instantly see which IPs are occupied
• Built-in PowerDNS integration: Manage DNS records directly from the IPAM interface
• IPv4 and IPv6: Full dual-stack support with subnet calculators
• Device management: Track physical devices, their locations, and assigned IPs
• Mail notifications: Automatic alerts for subnet utilization thresholds and IP conflicts
• API-driven: RESTful API for automation and integrations

Docker Deployment

phpIPAM ships an official Docker image with over 25 million pulls. Here’s a production-ready setup:

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services:
  phpipam-db:
    image: mariadb:11
    environment:
      MYSQL_ROOT_PASSWORD: rootpassword
      MYSQL_DATABASE: phpipam
      MYSQL_USER: phpipam
      MYSQL_PASSWORD: phpipam_secret
    volumes:
      - phpipam-mariadb:/var/lib/mysql
    healthcheck:
      test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
      interval: 10s
      timeout: 5s
      retries: 5

  phpipam-www:
    image: phpipam/phpipam-www:latest
    ports:
      - "8080:80"
    environment:
      - MYSQL_HOST=phpipam-db
      - MYSQL_USER=phpipam
      - MYSQL_PASS=phpipam_secret
      - MYSQL_DB=phpipam
    depends_on:
      phpipam-db:
        condition: service_healthy

volumes:
  phpipam-mariadb:

Deploy with docker compose up -d and access the web interface at http://localhost:8080. The first login uses Admin / ipamadmin.

Best Use Case

phpIPAM is ideal for small-to-medium teams that need a practical, no-frills IPAM with discovery capabilities. If your primary need is “track which IPs are assigned where and find conflicts,” phpIPAM delivers this with minimal overhead. The automatic scanning feature alone can save hours during network audits.

NIPAP — Hierarchical IP Address Planning

NIPAP (Neat IP Address Planner) takes a fundamentally different approach. Instead of being a web-first management tool, NIPAP is designed as a backend service with a powerful PostgreSQL-based data model that excels at hierarchical IP planning and smart allocation.

Key Strengths

• Smart pool allocation: NIPAP’s standout feature is its intelligent IP allocation engine. Ask it for “the next available /28 in this pool” and it returns the optimal answer based on your allocation policies
• Schema-driven design: Define pool hierarchies, prefixes, and tags with structured metadata. This makes NIPAP ideal for organizations with complex addressing plans
• Multi-tenant architecture: Built-in tenant isolation makes it suitable for hosting providers and managed service providers
• CLI and API-first: While it has a web frontend (nipap-www), the real power comes from the CLI tool (nipap-cli) and Python API library
• DHCP integration: NIPAP can integrate with ISC DHCP and Kea DHCP servers to automate address assignment
• VRF support: Full VRF (Virtual Routing and Forwarding) awareness for complex network topologies

Docker Deployment

NIPAP doesn’t have an official Docker image on Docker Hub, but community builds are available. Here’s a self-built setup using the project’s Dockerfiles:

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services:
  nipap-db:
    image: postgres:16-alpine
    environment:
      POSTGRES_DB: nipap
      POSTGRES_USER: nipap
      POSTGRES_PASSWORD: nipap_secret
    volumes:
      - nipap-postgres:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U nipap"]
      interval: 5s
      timeout: 3s
      retries: 5

  nipapd:
    build:
      context: .
      dockerfile: Dockerfile.nipapd
    environment:
      - DB_HOST=nipap-db
      - DB_PORT=5432
      - DB_NAME=nipap
      - DB_USERNAME=nipap
      - DB_PASSWORD=nipap_secret
    depends_on:
      nipap-db:
        condition: service_healthy
    ports:
      - "1337:1337"

  nipap-www:
    build:
      context: .
      dockerfile: Dockerfile.www
    environment:
      - NIPAP_XMLRPC_URI=http://nipapd:1337
    ports:
      - "5000:5000"
    depends_on:
      - nipapd

volumes:
  nipap-postgres:

Build the daemon and web images from the NIPAP repository, then deploy with docker compose up -d.

Best Use Case

NIPAP shines when you have complex IP allocation needs — multiple sites with hierarchical addressing, strict allocation policies, and automated provisioning requirements. It’s the choice for network engineers who think in terms of pools, prefixes, and allocation algorithms rather than simple IP lists.

NetBox — The Network Source of Truth

NetBox is the heavyweight of the three. Originally developed by DigitalOcean, it has grown into the most comprehensive open-source network source-of-truth platform available. NetBox goes far beyond IPAM — it models your entire network infrastructure.

Key Strengths

• Comprehensive data model: IP addresses, prefixes, VLANs, VRFs, devices, racks, sites, regions, circuits, cables, virtual machines, and more — all interconnected
• REST API + GraphQL: First-class API support with both REST and GraphQL interfaces, making it ideal for automation and infrastructure-as-code workflows
• Plugin ecosystem: Extensive plugin system adds functionality like DNS management, BGP configuration, and custom data models
• Git integration: Native support for storing configuration backups in Git repositories, enabling version-controlled network changes
• Virtualization: Track virtual machines, clusters, and their relationship to physical infrastructure
• Cable and circuit tracking: Model physical connections between devices, including patch panels and upstream circuits
• Large community: With over 20,000 GitHub stars, NetBox has the largest community, most plugins, and most third-party integrations
• Role-based access control: Granular permissions system for multi-team environments

Docker Deployment

NetBox has an official Docker deployment maintained by the community at netbox-community/netbox-docker. Here’s the production setup:

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services:
  netbox:
    image: docker.io/netboxcommunity/netbox:latest
    depends_on:
      - postgres
      - redis
      - redis-cache
    env_file: env/netbox.env
    user: "netbox:root"
    ports:
      - "8080:8080"
    volumes:
      - ./configuration:/etc/netbox/config:z,ro
      - netbox-media-files:/opt/netbox/netbox/media:rw
      - netbox-reports-files:/opt/netbox/netbox/reports:rw
      - netbox-scripts-files:/opt/netbox/netbox/scripts:rw
    healthcheck:
      test: "curl -f http://localhost:8080/login/ || exit 1"
      start_period: 90s
      timeout: 3s
      interval: 15s

  netbox-worker:
    image: docker.io/netboxcommunity/netbox:latest
    depends_on:
      netbox:
        condition: service_healthy
    env_file: env/netbox.env
    user: "netbox:root"
    command:
      - /opt/netbox/venv/bin/python
      - /opt/netbox/netbox/manage.py
      - rqworker

  postgres:
    image: docker.io/postgres:18-alpine
    env_file: env/postgres.env
    volumes:
      - netbox-postgres:/var/lib/postgresql/data
    healthcheck:
      test: "pg_isready -t 2 -d $$POSTGRES_DB -U $$POSTGRES_USER"
      start_period: 20s
      timeout: 30s
      interval: 10s
      retries: 5

  redis:
    image: docker.io/valkey/valkey:9.0-alpine

  redis-cache:
    image: docker.io/valkey/valkey:9.0-alpine

volumes:
  netbox-postgres:
  netbox-media-files:

Create the required env/ directory with netbox.env, postgres.env files, then run docker compose up -d. The official documentation provides detailed configuration templates.

Best Use Case

NetBox is the right choice for organizations that need a comprehensive network source of truth. If you’re managing racks, devices, circuits, virtual machines, and IP addresses in a unified system — or if you’re building automation pipelines that consume network topology data — NetBox is the industry standard.

Architecture Comparison

The three tools differ fundamentally in scope and design philosophy:

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phpIPAM                    NIPAP                      NetBox
┌──────────────┐          ┌──────────────┐          ┌─────────────────┐
│   Web UI     │          │  Web UI (UX) │          │    Web UI       │
│   (primary)  │          │  (secondary) │          │    (secondary)  │
├──────────────┤          ├──────────────┤          ├─────────────────┤
│   REST API   │          │  XML-RPC API │          │ REST + GraphQL  │
├──────────────┤          ├──────────────┤          ├─────────────────┤
│ IP/Subnet    │          │ Pool/Prefix   │          │ Full data model │
│ Device Mgmt  │          │ Smart Alloc   │          │ IP + DCIM +     │
│ VLAN/VRF     │          │ DHCP Integ    │          │ VMs + Circuits  │
│ IP Discovery │          │ VRF aware     │          │ Plugins + Git   │
│ PowerDNS     │          │ Multi-tenant  │          │ RBAC + Tenants  │
├──────────────┤          ├──────────────┤          ├─────────────────┤
│  MariaDB     │          │  PostgreSQL  │          │  PostgreSQL     │
│              │          │              │          │  Valkey/Redis   │
└──────────────┘          └──────────────┘          └─────────────────┘

phpIPAM is the simplest: a web application that manages IP addresses and provides discovery. Its database schema mirrors the web interface directly.

NIPAP is a backend service with intelligent allocation. The web frontend is an afterthought — the real value is in the API and allocation algorithms.

NetBox is a platform: a Django application with a rich data model, plugin system, and API designed to serve as the single source of truth for your entire network infrastructure.

Feature Deep Dive

IP Address Discovery

Only phpIPAM offers built-in IP discovery. It can scan subnets using three methods:

1. Ping sweep: ICMP echo requests to every address in a subnet
2. ARP table reading: Query connected devices for their ARP tables
3. SNMP polling: Query switches and routers for connected hosts

This is invaluable when inheriting a network with no documentation. Run a discovery scan and phpIPAM will populate your subnets with actual usage data within minutes.

Neither NIPAP nor NetBox has this capability — they assume you’re building your inventory from scratch or importing it.

Automation and API

For teams building infrastructure-as-code pipelines, API quality is critical:

NetBox offers the most complete API with both REST and GraphQL interfaces. Every object type (IP addresses, devices, cables, VMs) has full CRUD operations, and the GraphQL API allows you to fetch exactly the data you need in a single query. NetBox also supports webhooks for event-driven automation.

phpIPAM provides a straightforward REST API covering IP addresses, subnets, VLANs, and devices. It’s functional but less comprehensive than NetBox — some operations require multiple API calls, and the response format is less consistent.

NIPAP uses an XML-RPC API with a Python client library. The API is powerful for allocation operations but less intuitive for general CRUD. The CLI tool (nipap-cli) provides a convenient interface for interactive use.

Extensibility

NetBox leads by a wide margin with its plugin system. Community plugins add BGP management, DNS integration, custom fields, reporting, and more. If you need functionality beyond the core data model, there’s likely a plugin — or you can write one using NetBox’s well-documented plugin framework.

phpIPAM supports custom fields and has a limited plugin mechanism, but the ecosystem is small. Most customization requires modifying the PHP source directly.

NIPAP has virtually no extensibility beyond its core API. It does one thing (IP address management) and does it well, but don’t expect a plugin ecosystem.

Recommendation: Which Should You Choose?

Choose phpIPAM if:

• You need a quick, straightforward IPAM with a web interface
• Automatic IP discovery is important (inheriting undocumented networks)
• Your team prefers PHP/MariaDB stacks
• You want PowerDNS integration out of the box
• Your primary need is “track IPs and find conflicts”

Choose NIPAP if:

• You have complex hierarchical IP allocation requirements
• Smart prefix allocation (give me the next /28 in pool X) is a core requirement
• You need multi-tenant IPAM (hosting providers, MSPs)
• You prefer Python/PostgreSQL and API-first design
• DHCP integration is important

Choose NetBox if:

• You need a comprehensive network source of truth (not just IPAM)
• Rack, device, circuit, and cable tracking matter to your workflow
• You’re building automation pipelines that consume network topology data
• You want the largest community, most plugins, and best documentation
• GraphQL API access and webhook-based automation are requirements
• You’re already using or planning to use Infrastructure-as-Code tools

For teams evaluating broader network infrastructure tools, our Snipe-IT vs NetBox IT asset management comparison covers the overlap between these domains. If you’re building a complete self-hosted DNS infrastructure alongsidadguard home check our AdGuard Home vs Pi-hole vs Technitium DNS guide for DNS server recommendations.

FAQ

What is IPAM and why do I need it?

IPAM (IP Address Management) is the practice of planning, tracking, and managing IP address space within a network. Without IPAM, organizations typically use spreadsheets to track IP assignments, which leads to conflicts, wasted address space, and difficulty answering basic questions like “which IPs are available in this subnet?” Any network with more than 10 subnets benefits from a dedicated IPAM system.

Can I migrate from a spreadsheet to one of these tools?

Yes, all three tools support CSV import. phpIPAM is the easiest for this use case — its IP discovery feature can also scan your existing network and auto-populate the database, making migration from spreadsheets nearly painless. NetBox supports bulk imports through its API and admin interface, while NIPAP requires importing via its API or CLI.

Which IPAM tool supports both IPv4 and IPv6?

All three — phpIPAM, NIPAP, and NetBox — fully support IPv4 and IPv6 address management, including dual-stack subnets, IPv6 prefix allocation, and SLAAC tracking.

Do these tools integrate with DHCP servers?

NIPAP has the deepest DHCP integration, supporting both ISC DHCP and Kea DHCP servers for automated address assignment. phpIPAM can read DHCP lease files for discovery purposes. NetBox does not directly integrate with DHCP servers but its API can serve as the authoritative source for DHCP configuration generation.

Is NetBox too complex for simple IPAM needs?

NetBox can be complex if you only need basic IP address tracking. However, its web interface makes simple tasks (adding subnets, assigning IPs) straightforward. The complexity comes from the breadth of features — you can ignore racks, circuits, and virtual machines if you don’t need them. If you anticipate needing more than IPAM in the future, starting with NetBox avoids a migration later.

How do these tools handle IP address conflicts?

phpIPAM actively detects and reports IP conflicts during discovery scans and manual assignments. NetBox enforces uniqueness at the database level and will reject duplicate IP assignments. NIPAP prevents conflicts through its pool-based allocation system — the smart allocation engine will never assign an already-used address from a pool.

Can I use these tools in a multi-site organization?

All three support multi-site deployments. NetBox has the most sophisticated multi-site model with regions, sites, and hierarchical location tracking. NIPAP supports multi-tenant operation with VRF-aware prefix management. phpIPAM supports sections (logical groupings) that can represent different sites or departments.