29 Best Knowledge Base Software in 2026

Atlassian Confluence is a flexible knowledge base and wiki used by many IT and product teams. It supports structured spaces, page templates, and strong integration with Jira and other Atlassian tools. It works well as online knowledge base software for internal documentation and can also back a public help center.

• Deep integration with Jira and other Atlassian tools
• Strong page templates and structure
• Good for technical teams and IT docs

• Can feel heavy for very small teams
• Needs some care to keep spaces organized

What stood out to me is how Confluence supports long-term, structured documentation. I like how you can turn it into a single source of truth for product and process knowledge. In my opinion, it is one of the best knowledge base software options for IT companies and engineering-heavy teams.

Bloomfire is an employee knowledge sharing and search platform. It combines Q&A, articles, and rich media in one place, with strong search and analytics. Many companies use it as a central hub for sales enablement and internal FAQs.

• Strong search and content discovery
• Good analytics on what people read
• Supports video and other rich content

• Focused more on internal than external use
• Pricing may be high for very small teams

I usually pay attention to how easy it is to find content once a knowledge base grows. Bloomfire does a good job of surfacing popular answers and tracking gaps. I tend to view it as one of the top-rated tools for knowledge base management when your main focus is internal knowledge sharing.

BookStack is free, open-source documentation software you can host yourself. It groups content into books, chapters, and pages, and aims to stay simple to use even for non-technical teams.

• Free knowledge base software (MIT licensed)
• Simple, book-style structure
• Good fit for teams that want to self-host

• Requires hosting and upkeep
• Fewer built-in integrations than SaaS tools

I found it genuinely helpful to think of BookStack as a “no-frills” wiki that you own. I like how quickly you can add pages without worrying about complex layouts. For teams that want the best free knowledge base software and full control over their data, BookStack stands out.

ClickUp includes docs and wiki features alongside tasks and projects. Teams use it to store process docs, runbooks, and internal guides next to their daily work.

• Docs tied to tasks and projects
• Flexible hierarchy and views
• Good free tier for small teams

• Not a dedicated knowledge base only
• Can feel busy if you only want documentation

While exploring ClickUp’s docs, I paid attention to how knowledge sits next to work. I like how you can link docs to tasks so instructions are close to the work itself. In my opinion, it makes sense for teams that want knowledge base apps built into their wider work management system.

Desk365 is a helpdesk with a built-in knowledge base. It focuses on self-service, with clear portals, FAQ sections, and AI support for creating articles.

• Helpdesk and knowledge base in one
• Strong self-service focus
• Role-based access and permissions

• Best fit for support teams, not pure internal docs
• Requires some setup to match your brand

I liked how naturally the knowledge base fits into the support flow, from ticket deflection to step-by-step guides. I found this especially useful when you want the best knowledge base software for support teams that handle repeat questions all day. It also shows up often in best knowledge base platforms comparison pieces for customer support.

Document360 is a standalone knowledge base platform with strong categorization, markdown editing, workflows, and version control. It can power both internal and external knowledge bases and supports AI-based suggestions.

• Rich editor with versioning
• Good category and navigation structure
• AI features and workflow automation

• More “documentation-heavy” than simple note tools
• Pricing may feel high for very small teams

I appreciated the way Document360 treats documentation as a full product, not just a side feature. What stood out to me is how clean the structure stays even as you add many articles. For teams comparing top knowledge base platforms with analytics and workflow controls, this belongs on the shortlist.

Featurebase is one of the best AI-powered knowledge base platforms, built as an all-in-one help center. It focuses on product docs, in-app widgets, and an AI agent that can answer common questions directly.

• Built-in AI support agent
• In-app widgets for product docs
• Free plan for smaller teams

• Geared mainly to product and support teams
• Newer tool compared to some legacy platforms

I found the approach interesting because the knowledge base is tightly linked with AI and in-product help. I liked how naturally it fits into a self-serve support model where customers get answers without leaving your app. In my opinion, it is one of the best AI-driven knowledge base software options right now.

Freshdesk by Freshworks offers a helpdesk with a built-in knowledge base, forums, and chatbot tools. Teams use it to run support, ticketing, and self-service from one place.

• Helpdesk + knowledge base in one
• Multi-brand and multilingual options
• Good fit for support teams of many sizes

• Less focused on deep internal docs
• Best features on higher-tier plans

When reviewing Freshdesk, I focused on how easy it is for agents to turn solved tickets into articles. I like that this helps the knowledge base grow naturally as the support team works. I’d position it as one of the best knowledge base software options for support teams that want to track ticket volume and reduce repeat questions.

GitBook is a documentation platform popular with SaaS and developer teams. It supports markdown, version control, and Git integration, making it a good fit for technical docs and API guides.

• Clean layout for technical content
• Git integration and versioning
• Good for public product and API docs

• Less suited to HR or policy content
• Not aimed at classic helpdesk setups

I appreciated how GitBook keeps technical documentation readable without hiding the underlying structure. I’ve noticed that it works particularly well when engineering and product teams own the docs. For many software companies, it sits near the top of the best knowledge base software for IT companies.

Guru is a knowledge base and “knowledge cards” tool that brings answers into tools like Slack, Teams, and browsers. It focuses on capturing answers where work happens and keeping them up to date with verification workflows.

• Browser extension and in-app suggestions
• Verification system to keep content fresh
• Strong fit for sales and support enablement

• Card model can feel different at first
• Not a classic long-form wiki

What I noticed fairly quickly is how Guru tries to meet you inside your existing tools instead of forcing you into a separate portal. I like how experts can “own” and verify content so people trust what they see. In my opinion, it’s one of the best knowledge base tools when you want just-in-time answers during daily work.

HelpDocs is a simple, hosted knowledge base platform focused on clean design and ease of use. It is aimed at product and support teams that want to publish a branded help center quickly.

• Clean, simple front-end
• Easy theming and branding
• Good for public help centers

• Limited internal collaboration features
• Fewer deep analytics than some rivals

I found it easy to imagine a small team spinning up a full help center in a short time here. I appreciated the way basic tasks like organizing categories and tweaking the layout stay straightforward. For teams that want online knowledge base software without a steep learning curve, HelpDocs is a good fit.

Helpjuice is a dedicated knowledge base platform that focuses on design, search, and analytics. It helps teams create internal or external knowledge bases with custom layouts and detailed reporting.

• Strong search and relevancy
• Flexible design and branding
• Detailed usage analytics

• Pricing aimed at growing teams
• Less focus on broader ticketing

I liked how Helpjuice treats search as a central part of the product. I spent some time exploring how articles can be styled while still staying consistent. For many companies, especially those doing a knowledge base platforms comparison with analytics as a key requirement, Helpjuice earns a spot.

Help Scout Docs is the knowledge base part of the Help Scout support platform. It provides branded docs sites, article organization, and beacon widgets that show help content inside your app or site.

• Tight integration with Help Scout mailbox
• Simple editor and organization
• Beacon widget for in-app help

• Best if you already use Help Scout
• Limited standalone internal features

I found it genuinely helpful that Docs and email support share the same ecosystem. I liked how agents can link to or insert articles directly into replies. If you already use Help Scout, this is one of the best knowledge base tools to add self-service without extra vendors.

HubSpot Service Hub includes a knowledge base feature that links to CRM, tickets, and chat. It helps teams publish help articles and see which ones reduce ticket volume.

• Tied to CRM and ticket history
• Good analytics on article performance
• Simple authoring experience

• Best for teams already in HubSpot
• More focused on external support than deep internal docs

I spent some time exploring how HubSpot shows which articles drive the most self-service. I appreciated this connection between documentation and real support outcomes. For support and success teams in the HubSpot ecosystem, it is one of the best knowledge base software platforms to consider.

Intercom offers Articles as part of its customer service suite. It supports a public help center plus in-product help via a messenger widget and bots.

• Strong in-app help and messenger links
• Easy article targeting inside the product
• Good for SaaS and product teams

• Best used with Intercom messaging
• Pricing linked to wider Intercom stack

While exploring this tool, I liked how easily you can surface specific articles based on user behavior. I found this especially useful when you want to guide users through new features without manual emails. In my opinion, Intercom sits among the best AI-powered knowledge base platforms for product-led support.

IT Glue is an IT documentation and knowledge base platform aimed at MSPs and internal IT teams. It stores network details, passwords, SOPs, and other technical knowledge.

• Structured IT documentation
• Asset and password management
• Good fit for MSPs and IT departments

• Very IT-focused, less general HR use
• Pricing and features tuned to MSP needs

I approached IT Glue as a specialist tool rather than a general help center. What stood out to me is how it turns scattered IT notes into a proper system of record. For IT teams that want the best tools for HR knowledge base management plus technical infrastructure docs, IT Glue is an important option.

KnowledgeOwl is a documentation and knowledge base tool aimed at technical writers, product teams, and support teams. It supports internal and external sites with flexible layouts.

• Strong focus on structured content
• Good permission and access controls
• Works for both internal and external docs

• UI feels more functional than flashy
• Setup can take time for complex sites

I liked how KnowledgeOwl leans into structure and content models, which helps as you scale. I found it easy to imagine it supporting the best knowledge base software for IT companies, product teams, and support teams at the same time. It’s a good fit when you care about content structure and permissions.

LiveAgent is a helpdesk that includes a knowledge base, forums, and ticketing. The knowledge base lets you create public help centers and internal FAQs for agents.

• Helpdesk and knowledge base in one
• Multi-brand and multilingual options
• Affordable plans for smaller teams

• UI feels more classic than modern
• Less suited for deep internal documentation

I appreciated the way LiveAgent keeps the knowledge base close to email and chat support. I’ve found that this style works well for teams that want free knowledge base tools or low-cost options bundled with support. It’s a sensible pick for small support teams that want to keep everything in one system.

Notion is a flexible workspace tool that many teams use as an internal knowledge base. It supports pages, databases, and templates, with a generous free tier and many community setups.

• Very flexible page and database model
• Strong templates and community examples
• Robust free plan for small teams

• Not a dedicated KB tool, so governance can be hard
• Search and structure need discipline as spaces grow

I like how easy it is to start a wiki in Notion without any training. What I noticed fairly quickly, though, is that you need naming rules and owners to keep it tidy. In many “best free knowledge base software” lists, Notion appears for good reason, but I still see it as a general workspace rather than a pure knowledge base.

Plain is a modern support platform that includes a knowledge base and strong APIs. It focuses on fast performance, AI features, and deep integration into B2B support workflows.

• AI-assisted support and docs
• Fast, developer-friendly platform
• Strong API for custom flows

• Aimed at product and support teams
• May be more than needed for simple FAQs

I found it interesting that Plain treats documentation and conversations as two sides of the same support experience. I liked how you can keep docs and tickets tightly linked. For teams looking at top knowledge base platforms 2025 that are also modern support tools, Plain is one to watch.

ProProfs Knowledge Base helps teams create internal wikis, customer help centers, and documentation sites. It offers templates, collaboration tools, and analytics.

• Flexible internal and external use
• Templates for many content types
• Integrations with other ProProfs tools

• Interface feels more traditional
• Best features on higher-tier plans

I spent some time exploring how ProProfs structures internal and external sites from the same content pool. I appreciated that it supports staff training solutions as well as customer help. For teams that want online employee training platforms and a knowledge base from the same provider, this can be a useful option.

ServiceNow includes knowledge management as part of its IT service and employee experience suites. It helps large organizations store solutions, run internal help centers, and connect knowledge with tickets and requests.

• Deep integration with ITSM and HR workflows
• Strong permissions and governance
• Good fit for large enterprises

• Heavy platform for small companies
• Requires clear ownership and admin skills

I approached ServiceNow as an enterprise platform first, knowledge base second. I liked how knowledge articles plug directly into service portals so staff can self-serve before opening tickets.

Slab is an internal knowledge base tool aimed at modern teams. It supports rich editing, topics, and integrations with tools like GitHub, Slack, and Google Drive.

• Clean, opinionated design
• Good search and topic system
• Integrates well with common tools

• Focuses on internal, not external KBs
• Needs some setup to match your structure

I liked how Slab gently pushes you toward good documentation habits with topics and suggestions. I found it easy to keep content clean and readable. For many teams, it is one of the best knowledge base platforms with analytics and a strong candidate when you want best tools for HR knowledge base management and team docs.

Slite is a knowledge base and note tool for distributed teams. It focuses on simple pages, team channels, and meeting notes, and is often used as a light internal wiki.

• Simple, uncluttered interface
• Good for remote collaboration
• Templates for recurring docs

• Less depth for complex help centers
• Limited external publishing options

What stood out to me is how Slite keeps things light for remote teams that just need a shared brain. I liked how channels group docs by squad or topic. For small to mid-size remote teams, it’s a good example of best knowledge base software for support teams and general collaboration.

Tettra is an internal knowledge base built for growing teams that use Slack and Microsoft Teams. It offers Q&A, page templates, and suggestions from within chat.

• Deep Slack and Teams integration
• Q&A flow to capture answers
• Simple, structured pages

• Focused on internal, not public docs
• Less suited for complex multi-brand help centers

I found it genuinely helpful that Tettra supports both pages and quick Q&A. I liked how naturally it fits into chat-first workflows where people are already asking questions. In my opinion, it sits among the best knowledge base tools for small and mid-size teams that live in Slack.

Zendesk Guide is Zendesk’s AI-powered knowledge base. It connects to tickets, chat, and AI agents to help teams create, manage, and surface help articles for customers and employees.

• Tight integration with Zendesk support
• AI tools for content and suggestions
• Multi-brand, multi-language support

• Best value with the full Zendesk suite
• Admin screens can feel dense at first

I appreciated the way Zendesk turns resolved tickets into article ideas and uses AI to suggest content. I’ve noticed that this makes it easier to keep help centers fresh without extra meetings. For many support organizations, it’s one of the top knowledge base platforms in 2026, especially when AI is a key requirement.

Zoho Desk includes a knowledge base that can power self-service portals and internal FAQs. It links directly to tickets, community forums, and multi-brand support.

• Integrated with Zoho Desk tickets
• Multi-brand portals
• Affordable pricing

• UI feels busier than some modern tools
• Best if you already use Zoho Desk

I liked how Zoho Desk lets you reuse the same article across portals and channels. I found it easy to see which articles actually reduce ticket volumes. For small and mid-size support teams, it is often mentioned in top-rated tools for knowledge base management alongside other Zoho tools.

Zoho Learn is a knowledge management and training tool that combines manuals, courses, and spaces. It helps teams build internal knowledge hubs and learning paths.

• Manuals plus training in one tool
• Spaces for teams and topics
• Fits well in the broader Zoho ecosystem

• Not a classic customer help center
• Some advanced features need setup

I was curious to see how Zoho Learn blends documentation and training. I like how you can turn knowledge base articles into structured learning content for new hires. For HR and L&D teams that want employee training apps and knowledge in one place, it is an interesting option.

Zoho Wiki (in regions where it’s still available) is a simple wiki-style knowledge base for small teams. It supports workspaces, pages, and basic permissions.

• Simple, wiki-style structure
• Fits smaller teams and departments
• Integrates with other Zoho tools

• Interface looks more dated than newer platforms
• Less suitable for large public help centers

I tend to view Zoho Wiki as an easy way to start internal documentation if you already use Zoho. I liked that teams can spin up workspaces without a long project. For very small teams looking for free knowledge base software or low-cost internal wikis, it can still be a practical choice.