10 Best Knowledge Base Software of 2026

1. 1

   Freshdesk

   A help desk from Freshworks whose entry plan includes a customer portal backed by a knowledge base.

   8.7overall

   A help desk from Freshworks whose entry plan includes a customer portal backed by a knowledge base.

   Best forbudget-conscious support teams that want a knowledge base included on the entry plan

   Adoption data

   74,000+Freshworks says more than 74,000 businesses worldwide use its software, on the Freshdesk pricing page.

   Freshworks, Freshdesk pricing (2026): “Trusted by 74,000+ Businesses Worldwide”

   Freshdesk is the cheapest route on this list to a help center that sits inside a full ticketing tool. The Growth plan, at $19 per agent per month billed annually, includes ticketing, a shared inbox, a customer portal powered by a knowledge base, out-of-the-box reporting and the Freddy AI Agent with 500 sessions included. Extra AI sessions cost $49 per 100. Moving to Pro at $55 adds a multilingual help desk, custom dashboards, intelligent routing and multiple SLA policies, and Enterprise at $89 adds skill-based routing, a sandbox and audit logs. Freshworks states on the pricing page that more than 74,000 businesses use its software. The knowledge base is a support feature rather than a standalone documentation product, so teams that need versioned product docs, granular article workflows or many separate sites should compare it with the dedicated tools further down.

   Strengths

   • +Lowest verified entry price among the help desks here that include a knowledge base
   • +500 AI Agent sessions included before usage fees start
   • +14-day free trial

   Limitations

   • −Multilingual support starts on Pro at $55 per agent per month
   • −AI Copilot is a $29 per agent per month add-on
   • −No permanent free plan is listed on the pricing page

   SummaryFreshdesk is the best value knowledge base for small support teams because the customer portal and knowledge base come with the $19 Growth plan. Pick Pro if you publish in more than one language.

2. 2

   Zendesk

   A customer service suite whose Suite plans bundle a public help center, an AI knowledge base, ticketing, messaging and voice.

   8.7overall

   A customer service suite whose Suite plans bundle a public help center, an AI knowledge base, ticketing, messaging and voice.

   Best forsupport teams that want the help center inside their ticketing suite

   Adoption data

   80,000+Zendesk says more than 80,000 companies choose its software for AI customer service.

   Zendesk, Zendesk company overview (2026): “See why 80,000+ companies choose Zendesk for AI service”

   Zendesk treats the knowledge base as part of its customer service suite rather than a separate product. On the pricing page, the $19 Support Team plan covers email ticketing, while Suite Team at $55 per agent per month paid yearly adds AI agents, an AI knowledge base, messaging, live chat and telephony. Help center options scale with the tier: one default language at the bottom against more than 40 languages higher up, and up to 5 help centers for separate brands. Articles can be embedded in the web widget and mobile SDK, limited by audience with view permissions, and mapped to your own subdomain. An add-on called knowledge builder drafts a starter knowledge base from past tickets. Zendesk reports more than 80,000 companies as customers, the largest count published by a help desk vendor on this list. The trade-off is that you pay per agent for a full service suite, which is costly if you only need a public documentation site.

   Strengths

   • +Articles, tickets and AI agents share one workspace, so agents can link articles inside tickets
   • +Article view permissions limit content to agents, custom segments or the public
   • +Host mapping puts the help center on your own subdomain

   Limitations

   • −The $19 Support Team plan does not include the help center features of the Suite plans
   • −Priced per agent, so costs grow with the support team rather than the docs team
   • −No permanent free plan

   SummaryZendesk is the best knowledge base software for support teams that already work in tickets, because its help center, AI agents and ticketing share one Suite plan from $55 per agent per month. Teams that only need public docs will pay for a lot they do not use.

3. 3

   Confluence

   Atlassian's team wiki for pages, spaces and databases, with Rovo AI search on paid plans.

   8.5overall

   Atlassian's team wiki for pages, spaces and databases, with Rovo AI search on paid plans.

   Best forinternal knowledge bases for teams already on Jira

   Adoption data

   350,000+Atlassian said in its Q4 fiscal 2026 shareholder letter that more than 350,000 organizations use its products; the figure covers all Atlassian products, not Confluence alone.

   Atlassian, Atlassian Q4 FY26 shareholder letter (2026): “More than 350,000 organizations across every industry use the Atlassian’s System of Work to plan, track, and execute”

   Confluence is the knowledge base most teams already have through Jira, and its pricing is the lowest per seat here. The Free plan covers 10 users with pages, spaces, databases, templates and 2 GB of storage. Standard at $5.78 per user per month adds Rovo Search, Chat and Agents, free guest access, advanced permissions and 250 GB of storage, and Premium at $11.16 adds unlimited pages, spaces and storage plus a dynamic intranet. Atlassian's Q4 fiscal 2026 shareholder letter says more than 350,000 organizations use its products, though that count is not specific to Confluence. The catch for this list's audience is publishing: Confluence is designed for internal documentation and team wikis, and it lacks the branded public help center, article feedback and support widgets that Zendesk, Help Scout or Document360 provide. Use it for internal runbooks and policies, and pair it with a dedicated help center for customers.

   Strengths

   • +Cheapest verified per-user paid plan on this list at $5.78
   • +Free plan covers 10 users
   • +Tight links between Confluence pages and Jira work items

   Limitations

   • −Built as an internal wiki, not a branded public help center
   • −Free plan is limited to 3 active whiteboards per user and 2 GB of storage
   • −Enterprise pricing is only shown with annual billing selected

   SummaryConfluence is the best internal knowledge base for Jira teams because it is free for 10 users and costs $5.78 per user on Standard. It is a weaker fit for a public, customer-facing help center.

4. 4

   Help Scout Docs

   The Docs knowledge base inside Help Scout's shared inbox, with branded help center sites and the Beacon widget.

   8.4overall

   The Docs knowledge base inside Help Scout's shared inbox, with branded help center sites and the Beacon widget.

   Best forsmall support teams that want a free help center

   Adoption data

   12,000Help Scout says more than 12,000 businesses use its customer support platform.

   Help Scout, Help Scout customers (2026): “More than 12,000 businesses delight their customers with Help Scout”

   Help Scout Docs is the knowledge base module of Help Scout, and it is the easiest way on this list to publish a branded help center without paying. The Free plan includes 5 users, one shared inbox and one Docs site, though contacts are capped at 100 per month. Standard at $25 per user per month billed annually raises that to 2 Docs sites and unlimited contacts, Plus at $45 gives 3 sites and Pro at $75 gives 5, with extra sites at $20 per month paid annually. Docs sites support custom branding, embedded contact forms and restricted access through the API, and the Beacon widget puts article search inside your product. The Envoy AI assistant answers from your knowledge base for $0.75 per resolution. Help Scout says more than 12,000 businesses use its platform. Authoring is simpler than in Document360 or Helpjuice, with fewer review workflows and less control over article structure.

   Strengths

   • +Free plan pairs a shared inbox with a branded public Docs site
   • +Articles and the shared inbox live in the same product
   • +Restricted Docs sites can limit who views content through the API

   Limitations

   • −Free plan caps contacts at 100 per month
   • −Paid seats start at $25 per user, more than Freshdesk's $19 entry plan
   • −Fewer authoring workflow tools than dedicated platforms such as Document360

   SummaryHelp Scout Docs is the best free knowledge base for small support teams because its free plan includes a public Docs site for 5 users. Paid plans add more sites from $25 per user per month.

5. 5

   GitBook

   A docs platform for public product and API documentation with Git sync and AI features.

   8.1overall

   A docs platform for public product and API documentation with Git sync and AI features.

   Best forsoftware companies publishing product and API docs

   Adoption data

   two millionGitBook says on its about page that more than two million people use its platform.

   GitBook, About GitBook (2026): “Today, we’re used by more than two million people”

   GitBook is built for teams that publish product documentation the way they ship code. Content can sync with GitHub or GitLab, API references are generated and interactive, and published docs automatically expose an MCP server so AI coding assistants can read them. Pricing is per site: Essential costs $65 per site per month billed annually or $79 monthly, plus $12 per additional team member, and Ultimate costs $249 per site. A free plan covers individuals, and paid plans start with a 14-day trial. GitBook says more than two million people use the product. For a classic support help center, it lacks the ticketing link, contact forms and in-app widgets that Zendesk, Freshdesk and Help Scout bundle. It fits developer-facing documentation better than consumer support articles, and costs climb if you need several separate sites.

   Strengths

   • +Two-way Git sync suits teams that review docs in pull requests
   • +Free plan for individuals
   • +Monthly option at $79 per site for teams that avoid annual contracts

   Limitations

   • −Priced per site plus $12 per user, which adds up with many sites
   • −Less suited to ticket deflection than help desk knowledge bases
   • −Enterprise pricing is customized

   SummaryGitBook is the best knowledge base for software companies publishing developer docs because it syncs with GitHub and GitLab and generates interactive API references. Support teams focused on ticket deflection should look at help desk tools first.

6. 6

   Notion

   An all-in-one workspace for docs, wikis and databases that can publish pages as public Sites.

   8.0overall

   An all-in-one workspace for docs, wikis and databases that can publish pages as public Sites.

   Best forsmall teams that want one tool for internal wiki and simple public pages

   Adoption data

   100 millionNotion said in a company blog post that it passed 100 million users.

   Notion, 100 million of you (2024): “Last month, Notion passed 100M users!”

   Notion is the most widely used product on this list, and many teams already keep their internal wiki there. Pages and databases can be published as public Sites, and a custom domain with Notion branding removed costs $8 per month per domain paid annually or $10 monthly. Sites can be customized with a header bar and light or dark mode. Notion passed 100 million users according to its own blog, a figure that covers every use of the product, not knowledge bases specifically. For a customer help center it is thin: there is no link to a ticketing system, no built-in article feedback or deflection reporting, and no support widget. Its pricing page showed euros from our location, so we mark the USD paid plan price as pending. Notion suits small teams that want one place for internal docs and a simple public page set.

   Strengths

   • +Largest user base of any product on this list
   • +One workspace for internal wiki and simple public pages
   • +Free plan to start

   Limitations

   • −No ticketing link, article feedback or support widget for a help center
   • −Custom domains and branding removal cost extra per domain
   • −Pricing page showed euros from our location, so the USD price is pending

   SummaryNotion is the best fit for small teams that want their internal wiki and a few public pages in one workspace, with a custom domain for $8 per month. It is not a replacement for a support help center.

7. 7

   Document360

   A dedicated knowledge base platform for public and internal documentation with the Eddy AI assistant.

   7.3overall

   A dedicated knowledge base platform for public and internal documentation with the Eddy AI assistant.

   Best fordocumentation teams that need structured authoring workflows

   Document360 is a dedicated knowledge base product, and its feature list is the deepest on this page for teams whose main job is writing documentation. The vendor lists Markdown and advanced WYSIWYG editors, article revision history, category and tag management, reusable content blocks, a glossary, a custom workflow builder, translation, an embedded help center and interactive decision trees, plus the Eddy AI assistant. The pricing page lists SOC 2 Type II and ISO 27001:2022. What it does not list is a price. Document360 now shows customized pricing built around projects and reader accounts, so we could not verify a starting price and mark it as pending. The homepage says it is used by thousands of businesses in more than 150 countries but gives no exact count, so we score adoption conservatively. Expect a sales conversation before you know the cost.

   Strengths

   • +Most complete authoring toolset among the dedicated knowledge base tools here
   • +SOC 2 Type II and ISO 27001:2022 listed on the pricing page
   • +Content migration and branding services offered by the vendor

   Limitations

   • −No flat prices published; pricing is customized per setup
   • −No published customer count to cite
   • −No permanent free plan listed

   SummaryDocument360 is the best choice for documentation teams that need review workflows, reusable content and a glossary in a dedicated knowledge base. Its pricing is quote-based, so budget time for a sales call.

8. 8

   Helpjuice

   A knowledge base platform sold in flat monthly tiers with a custom-designed theme for every customer.

   7.2overall

   A knowledge base platform sold in flat monthly tiers with a custom-designed theme for every customer.

   Best forcompanies that want a custom-designed knowledge base without in-house design work

   Adoption data

   8,500+Helpjuice says on its homepage that more than 8,500 knowledge bases run on its platform.

   Helpjuice, Helpjuice knowledge base software (2026): “8500+ Knowledge Bases”

   Helpjuice sells a dedicated knowledge base in flat tiers instead of per-seat pricing. The entry tier includes 30 users and 12 GB of storage, the second tier 100 users with 24 GB and the full AI suite, and the top tier unlimited users with 38 GB. Every tier includes a knowledge base design customized by the Helpjuice team, live collaboration and workflows, localization and AI article translation into more than 40 languages. AI writer, AI search and an AI chatbot are only included from the second tier. Helpjuice says more than 8,500 knowledge bases run on its platform. From our location the pricing page showed tier prices without a currency symbol, so we mark the USD price as pending. The flat pricing favors larger teams with many editors, while a five-person team will likely pay less with HelpDocs or Help Scout.

   Strengths

   • +Flat pricing per tier rather than per agent
   • +Custom design work included on every tier
   • +14-day free trial

   Limitations

   • −AI suite is not included on the entry tier
   • −Pricing page did not show a currency from our location, so the price is pending
   • −No free plan

   SummaryHelpjuice is the best choice for companies that want a custom-designed knowledge base with many editors, because each tier is a flat monthly fee that includes design work. Small teams will find cheaper options here.

9. 9

   HelpDocs

   A dedicated knowledge base with flat team pricing, unlimited viewers and built-in AI credits.

   7.1overall

   A dedicated knowledge base with flat team pricing, unlimited viewers and built-in AI credits.

   Best forsmall teams that want a standalone help center at a flat price

   HelpDocs is a standalone knowledge base with flat pricing per plan, which suits teams that want a public help center without buying a help desk. Sprout costs $99 per month billed annually ($129 monthly) and includes 5 editors, unlimited viewers, 1,000 AI credits per month, 3 languages, the Lighthouse widget and custom CSS and JavaScript. Bloom at $239 adds 15 editors, 20 languages, advanced permissions, an audit trail and embedded SSO, and Harvest at $399 adds 25 editors, unlimited languages and SAML and OIDC SSO. HelpDocs also serves content to AI assistants over MCP and as llms.txt and Markdown. Every plan starts with a 14-day trial with no credit card. HelpDocs does not publish a customer count, so its adoption score is conservative. The main limit is editor count: growing writing teams will move up to Bloom quickly.

   Strengths

   • +Flat price covers unlimited readers
   • +14-day free trial on every plan with no credit card
   • +AI credits included rather than sold separately

   Limitations

   • −Only 5 editors on the entry plan
   • −Advanced permissions and audit trail start on Bloom at $239 per month
   • −No published customer count

   SummaryHelpDocs is the best standalone help center for small teams because $99 per month billed annually covers 5 editors and unlimited readers. Larger writing teams should price Bloom at $239.

10. 10

    Tettra

    An internal knowledge base and Q&A tool that answers employee questions in Slack.

    6.5overall

    An internal knowledge base and Q&A tool that answers employee questions in Slack.

    Best forSlack-based teams answering repeat internal questions

    Tettra targets internal knowledge rather than public help centers, and it earns a place here for support and operations teams that answer the same internal questions repeatedly. The Scaling plan costs $8 per user per month with a 10-user minimum and includes AI answers in Slack DMs and channels, AI thread summarization, AI page tagging and FAQ generation, and training on Google Docs. Knowledge management tools include page requests, verification, a stale pages report and an unowned content report. Permissions cover guest users, read-only users and invite-only categories, and SAML SSO and SCIM are paid add-ons below Enterprise. Tettra offers a 30-day trial and two free months for annual billing. It does not publish a customer count. It is not built to host a branded, customer-facing help center, so pair it with one of the tools above if customers need self-service.

    Strengths

    • +30-day free trial
    • +Low per-user price for an AI internal Q&A tool
    • +Paying annually earns two free months

    Limitations

    • −10-user minimum puts the floor at about $80 per month
    • −Internal focus, not a customer-facing help center
    • −SAML SSO and SCIM are paid add-ons below Enterprise

    SummaryTettra is the best choice for Slack-based teams that want AI answers from internal docs, at $8 per user per month with a 10-user minimum. It does not replace a public help center.

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