Top 10 Best IT Infrastructure Documentation Software of 2026

Auvik is a strong fit for infrastructure teams that need network topology snapshots, port-level switch mapping, and configuration archives tied to device identities. It supports SNMP polling and neighbor discovery workflows like LLDP to connect devices into a dependency view. The documentation output is driven by ongoing discovery intervals instead of one-time imports.

A key tradeoff is that Auvik focuses on network infrastructure coverage and does not replace broader application or service documentation hubs like Confluence or Notion. It is a better match when diagram accuracy and freshness matter for network changes, such as onboarding new subnets or preparing for CAB reviews. It is less suitable when documentation must be managed primarily as documentation-as-code or structured runbooks across non-network systems.

Snipe-IT’s core value for infrastructure documentation comes from treating each physical asset as a record that can be assigned to a rack, a room, or a person, then linked to maintenance events and lifecycle dates. The system also supports attachments and notes on assets so operational context can live alongside the inventory baseline. Import and export flows help teams bootstrap from CSV and keep documentation current during on-premises inventory reconciliation.

A practical tradeoff is that Snipe-IT does not natively model network topology relationships or capture port-level discovery results, so it is better for inventory and ownership documentation than for topology mapping. Snipe-IT fits teams that need consistent asset documentation across hybrid environments, then complement it with separate tools for SNMP or LLDP neighbor discovery.

GLPI supports structured documentation via typed items like computers and network devices, plus relationship fields that connect assets to organizations, locations, and tickets. Network documentation can be enriched by device attributes, ports, and cabling-related fields when the right plugin or data entry model is used. Administration includes role-based access controls for forms, data visibility, and ticket operations, which helps separate documentation creation from approvals.

A key tradeoff is that network topology mapping and live state polling are not equal to purpose-built network discovery platforms unless discovery is added through plugins or custom integrations. GLPI fits best for hybrid environments where teams need an audit trail of changes through ticket and history records while keeping a single asset record for documentation.

ServiceNow CMDB records configuration items and relationships so infrastructure teams can map services to underlying systems and dependencies. It integrates CMDB data with ServiceNow workflows for change tracking, incident context, and audit evidence needs tied to configuration history.

Device42 documents infrastructure relationships with an asset-first configuration database and topology visualizations that connect racks, networks, and services. It supports scheduled discovery and configuration backups with change history so teams can compare current device state against prior baselines.

i-doit is an infrastructure documentation tool designed to keep a CMDB-style inventory current for on-prem networks and datacenters. It models configuration items like devices, services, locations, and relationships, then supports topology views and documentation from that shared catalog.

ManageEngine OpUtils is network documentation software that builds topology and documentation from live network device data. It focuses on discovery-driven inventories, including switch connectivity views and configuration backup workflows, then turns results into exportable diagrams and structured records.

BookStack is a documentation wiki focused on books, chapters, and pages, which maps well to operational knowledge like procedures and infrastructure notes. It ships with lightweight structure controls, including roles and permissions for viewing and editing documents.

Hyperview documents infrastructure by turning topology and inventory inputs into navigable diagrams and dependency views. Hyperview focuses on network and data center artifacts like rack and cable records, device connections, and configuration backups that teams can keep current over time.

SolarWinds Network Topology Mapper maps network dependencies by building topology views from discovery data and ongoing polling. It supports SNMP-based device discovery and relationship inference so teams can see upstream and downstream paths between nodes.