Best On-Premises IT Documentation Software of 2025

Device42 is a robust and comprehensive data center and network management software designed by IT engineers to help them discover, document and manage Data Centers and overall IT. Device42 provides actionable insight into enterprise infrastructures. It clearly identifies hardware, software, services, and network interdependencies. It also features powerful visualizations and an easy-to-use user interface, webhooks and APIs. Device42 can help you plan for network changes and reduce MTTR in case of an unexpected outage. It provides everything you need for maintenance, audits and warranty, license certificate, warranty and lifecycle management, passwords/secrets and inventory, asset tracking and budgeting, building rooms and rack layouts... Device42 can integrate with your favorite IT management tools. This includes integration with SIEM, CM and ITSM; data mapping; and many more! As part of the Freshworks family, we are committed to, and you should expect us to provide even better solutions and continued support for our global customers and partners, just as we always have.

JDisc Discovery is a powerful IT asset management and network discovery tool, designed to provide organizations with clear, real-time insights into their entire IT environment. By automatically scanning the network, it identifies and catalogs devices, from physical servers and workstations to virtual machines and network appliances, giving users a detailed inventory of their assets. The tool captures essential data such as hardware specifications, installed software, system configurations, and interdependencies among devices. A key advantage of JDisc Discovery is its agentless architecture. Rather than requiring installation on each device, it uses multiple protocols (like SNMP, SSH, WMI) to gather information, ensuring quick deployment and compatibility across various operating systems, including Windows, Linux, and Unix. This makes it ideal for diverse and dynamic IT ecosystems, enabling efficient and non-intrusive data collection.

Faddom's software for application dependency mapping uses network traffic protocols in order to automatically map all cloud and on-prem platforms. Get a 24/7, real-time holistic view of all hybrid servers, applications and dependencies. Lightweight. No agents. No credentials. No firewalls. Pricing starts at $1 per node per month. Free for 30 days. Trial is free with no credit card.

BookStack is a user-friendly, self-hosted platform designed for efficiently organizing and managing information. It is completely free and operates under the MIT license, with its source code accessible on GitHub. Users can easily download and set up their own instance of BookStack without any associated costs. The design emphasizes simplicity, making it easy for anyone to navigate. All content within BookStack is searchable, allowing users to find information at the level of books, chapters, or pages. Additionally, direct linking to any paragraph helps maintain interconnected documentation seamlessly. The platform offers various configuration options, enabling customization to fit different user needs, such as modifying the name, logo, and registration settings. Users can also control the visibility of the entire system, choosing whether it should be public or restricted. Built on PHP and the Laravel framework, BookStack uses MySQL for data storage. It has been optimized for performance, capable of running smoothly on a budget-friendly $5 Digital Ocean VPS, making it accessible for individual users or small teams. This combination of features and affordability makes BookStack an attractive choice for those seeking an efficient way to manage their knowledge.