Best Knowledge Base Software for 2026: 12 tools compared for buyers
This page compares knowledge base software for teams that need one searchable home for help articles, procedures and internal answers. Some tools below serve customers through a public help center, some serve employees through a private wiki, and a few cover both. If you are a support lead, an IT manager or an operations owner, the twelve tools here should help you narrow the field before you book demos.
We compared the tools on fit for the use case, editing and search features, ease of use and how clearly each vendor shows its pricing. Each tool also lists what its vendor publishes on security, admin controls and contract terms, such as SSO, SCIM and audit logs, so procurement and IT can check requirements early.
Our shortlist at a glance
- Best branded help center with admin controls
HelpjuiceHelpjuice offers a customizable branded help center, four user role levels, restriction by URL, IP, user or group, SSO through Okta, Azure AD or Auth0, and approval for drafts.
$249 per month (Knowledge Base, up to 30 users) - Best EU-hosted team wiki
SliteSlite hosts data in Belgium, holds SOC 2 Type II, and includes Ask AI search on all paid plans, which suits European teams that want an AI search wiki.
$10 per user/month billed yearly (Basic) - Quickest rollout for small teams
NuclinoNuclino is a simple, fast wiki with a free plan and Markdown-friendly editing, and it offers SAML SSO and an audit log on its top plan.
Free (up to 50 items); paid prices not stated - Best for Atlassian-based organizations
ConfluenceConfluence links closely to Jira and Jira Service Management, supports page and space permissions from Standard, and keeps page history with compare and revert on the Free plan.
Free up to 10 users; Standard about $5.42 per user per month billed annually - Best governance for sales and support answers
GuruGuru delivers verified, permission-aware answers inside Slack, the browser and chat, with role-based access, SSO, SCIM and audit logs aimed at mid-size and enterprise companies.
Contact sales - Best for small support teams with HIPAA needs
Help ScoutHelp Scout pairs a simple shared inbox with its Docs knowledge base for teams under 25 users, and the Pro plan supports HIPAA with a BAA.
Free up to 5 users; Standard $25 per user/month
What is knowledge base software?
Knowledge base software is a searchable library of written answers. Teams publish articles, FAQs and step-by-step procedures, organize them into categories and let readers find them with search. A public knowledge base answers customer questions and takes pressure off the support queue. An internal one gives employees a single place for policies, onboarding steps and process notes. Day to day, authors write and update pages, reviewers approve changes, and admins decide who can read or edit what. The core capabilities that define the category are a good editor, strong search, access control, version history and reporting on what readers actually look for.
Knowledge Base Software side by side
| Tool | Best for | Starting price | Free plan or trial |
|---|---|---|---|
| Helpjuice | Best branded help center with admin controls. | $249 per month (Knowledge Base, up to 30 users) | Free trial |
| Slite | Best EU-hosted team wiki. | $10 per user/month billed yearly (Basic) | Free trial |
| Nuclino | Quickest rollout for small teams. | Free (up to 50 items); paid prices not stated | Free plan, Free trial |
| Confluence | Best for Atlassian-based organizations. | Free up to 10 users; Standard about $5.42 per user per month billed annually | Free plan |
| Guru | Best governance for sales and support answers. | Contact sales | No |
| Help Scout | Best for small support teams with HIPAA needs. | Free up to 5 users; Standard $25 per user/month | Free plan, Free trial |
 Notion | Startups and small teams combining wiki and project tracking. | Free; Plus $10 per member per month billed annually | Free plan |
 Zendesk | Support teams that want a broad omnichannel suite with a regional data hosting option. | $19 per agent/month billed annually (Support Team) | Free trial |
 Freshdesk | SMB support teams wanting low entry price and SAML SSO on every plan. | $19 per agent/month billed annually (Growth) | Free trial |
 Bloomfire | Mid-size and enterprise teams that want a company-wide Q&A and knowledge library with search as the main feature. | Contact sales | No |
 Document360 | Product and SaaS documentation teams needing public and private KBs. | Contact sales | No |
 Tettra | Small and mid-size teams living in Slack that want a cheap internal wiki. | $8 per user/month (Scaling, 10-user minimum) | Free trial |
Prices as published by each vendor on October 24, 2026. "Contact sales" means the vendor publishes no price.
The 12 knowledge base software tools in detail
Best branded help center with admin controls
Helpjuice
Flat-fee knowledge base with a monthly price by user cap, with AI features bundled in the two higher plans.
Buyers who dislike per-seat math can compare a flat monthly fee tied to a user cap of 30, 100 or unlimited. Admins get four role levels and restrictions by URL, IP, user or group. In a trial, test the drafts approval flow, version restore and branded theming.
- Best for
- Teams that want predictable flat monthly cost.
- Company size
- Small teams to large organizations (unlimited-user tier)
Key features
- Authoring and editing experience
- WYSIWYG editor with tables, custom HTML, drag-and-drop media, real-time editing and comments.
- Search and AI answers
- AI-powered search with 'Ask AI', searches PDFs and images (AI plans)
- Internal vs public access control
- Restrict by URL, IP, user or group; four user role levels; SSO via Okta, Azure AD, Auth0.
- Versioning and review workflows
- Version history with compare and restore; approval process for drafts.
Pros
- Ease of use and setup.
- Responsive support.
Cons
- Limited customization in places.
- Editing can feel clunky.
Pricing: $249 per month (Knowledge Base, up to 30 users) · Free trial
Best EU-hosted team wiki
Slite
AI-first team wiki with per-user pricing, EU data hosting and SOC 2 Type II.
European teams wanting a wiki with AI answers at a published price should shortlist it, as data is hosted in Belgium and the vendor holds SOC 2 Type II. Doc verification starts on Basic, and Ask AI is on every paid plan. Look elsewhere for customer help centers or SCIM below Enterprise.
- Best for
- Small and mid-size teams wanting an AI search wiki at a published price.
- Company size
- G2: 64.4% of reviewers at companies of 50 or fewer.
Key features
- Search and AI answers
- Ask AI search on all paid plans; Agent and cross-tool search on Pro.
- Internal vs public access control
- Enforced SSO and external IdPs on higher plans; public docs on custom domain (Pro)
- Versioning and review workflows
- Doc verification workflow on Basic.
- Help desk and chat integrations
- MCP and API access on Basic; search across connected tools on Pro.
Pros
- Intuitive interface.
- Real-time collaboration.
Cons
- Limited formatting for complex documentation.
- Occasional crashes when pasting into tables (one reviewer)
Pricing: $10 per user/month billed yearly (Basic) · Free trial
Quickest rollout for small teams
Nuclino
Lightweight wiki and workspace with a free tier and SAML SSO plus audit log on the top plan.
Nuclino is a lightweight wiki and workspace for small teams, with a free tier and a Markdown-friendly editor. SAML SSO and an audit log arrive on the top plan, and teams above 100 users need a custom plan. It is not a customer help center.
- Best for
- Small teams wanting a simple, fast wiki with a free plan.
- Company size
- Small teams; custom plan above 100 users.
Key features
- Authoring and editing experience
- Markdown-friendly editor per G2 summary.
- Search and AI answers
- Sidekick AI on Business; G2 complaint: search does not tolerate typos.
- Internal vs public access control
- Publishing, custom domain, admin tools.
- Versioning and review workflows
- 30-day history on Starter, unlimited on Business.
Pros
- Easy to use, simple design.
- Clean markdown handling.
Cons
- Search handles typos poorly.
Pricing: Free (up to 50 items); paid prices not stated · Free plan, Free trial
Best for Atlassian-based organizations
Confluence
Atlassian's per-user wiki and team documentation tool, tightly linked to Jira and sold in Free, Standard, Premium and Enterprise tiers.
Organisations already running Jira or Jira Service Management get the tightest fit, with internal documentation at any size. A Free tier covers 10 users and page history with compare and revert is included there. Plan for an extra Atlassian Guard subscription if SSO is required.
- Best for
- Teams already on Jira or Jira Service Management.
- Company size
- Teams of all sizes; Free to 10 users, Enterprise for large deployments (up to 150 sites)
Key features
- Authoring and editing experience
- Real-time collaborative editing with inline and page comments.
- Search and AI answers
- Advanced search, labels and hierarchy; Rovo AI summarizes and explains jargon (Standard and up per third party)
- Internal vs public access control
- Page and space permissions for users, groups and anonymous from Standard.
- Versioning and review workflows
- Page history, compare and revert on Free.
Pros
- Best-in-class integration with Jira and Atlassian tools.
- Easy to use shared knowledge base.
Cons
- Navigation and layout can be confusing.
- Search is hard to use.
Pricing: Free up to 10 users; Standard about $5.42 per user per month billed annually · Free plan
Best governance for sales and support answers
Guru
AI knowledge platform that delivers verified answers inside work tools, sold on custom quotes.
Sales and support enablement leads in mid-size or enterprise firms can use it to push verified answers into Slack, the browser and chat. Access is role-based with SSO, SCIM and audit logs. Pricing is a custom quote, so ask how AI search citations and permissions behave in a pilot.
- Best for
- Sales and support teams needing verified answers in Slack, browser and chat.
- Company size
- Mid-size to enterprise.
Key features
- Authoring and editing experience
- Card-based knowledge with verification; details not confirmed.
- Search and AI answers
- Knowledge Agents and AI search, cited permission-aware answers, MCP delivery.
- Internal vs public access control
- Role-based access, SSO, SCIM, audit logs (enterprise governance)
- Versioning and review workflows
- Verification workflow not confirmed.
Pros
- Intuitive onboarding and browser extension.
- Helpful support team.
Cons
- Opaque pricing.
- Price rise versus older per-seat tiers (inferred from conflicting price listings)
Pricing: Contact sales
Best for small support teams with HIPAA needs
Help Scout
Shared-inbox style help desk with a built-in Docs knowledge base and per-resolution AI pricing.
A support team under 25 people that wants an uncluttered shared inbox with Docs attached is the natural buyer. Free use runs up to 5 users. Check the SSO path early, because it needs an add-on or the Pro plan, and HIPAA with a BAA also sits on Pro.
- Best for
- Small support teams under 25 users that want a simple inbox plus Docs.
- Company size
- Under 25 users on Standard; Pro for larger.
Key features
- Help desk and chat integrations
- Salesforce, Jira, HubSpot on Plus.
Best for
- Small support teams under 25 users that want a simple inbox plus Docs.
- Teams needing HIPAA support (Pro plan, BAA)
Not ideal for
- Teams needing SSO below the Pro plan (SSO is an add-on or Pro, 10 users minimum)
Pricing: Free up to 5 users; Standard $25 per user/month · Free plan, Free trial
Notion
All-in-one workspace for wikis, docs and lightweight project databases, priced per member with SSO starting on Business.
Startups and small teams that want wiki pages, docs and light project databases in one place can start on the free plan. SAML SSO arrives on Business and SCIM only on Enterprise. There is no native help desk, so test how the block editor copes with wide, long documentation.
- Best for
- Startups and small teams combining wiki and project tracking.
- Company size
- Two-thirds of G2 reviews from small business; Enterprise tier for large orgs.
Key features
- Authoring and editing experience
- Block editor with databases and docs.
- Search and AI answers
- Notion AI bundled in Business and Enterprise (third party); Free/Plus limited trial.
- Internal vs public access control
- Workspaces, teamspaces, guests (10 on Free); SAML SSO Business+, SCIM Enterprise.
- Versioning and review workflows
- Page history (7 days on Free)
Pros
- Flexibility to build docs, wikis and databases.
- Strong product direction (G2 sub-score 9.4)
Cons
- Learning curve (ease of use 8.3, lowest sub-score)
- Gaps for time tracking and resource planning.
Pricing: Free; Plus $10 per member per month billed annually · Free plan
Zendesk
Enterprise-grade help desk with per-agent plans, a bundled Guide knowledge base and per-resolution AI pricing.
Larger support organisations that need omnichannel coverage and a regional data hosting option are the target here, with Guide as the bundled knowledge base. Model total cost carefully: AI is billed per resolution, and Copilot, WEM, QA and 24/7 support are all extra. No free plan exists.
- Best for
- Support teams that want a broad omnichannel suite with a regional data hosting option.
- Company size
- Tiers from Support Team to Enterprise.
Best for
- Support teams that want a broad omnichannel suite with a regional data hosting option.
- Teams comfortable paying per AI resolution.
Not ideal for
- Teams wanting flat all-in pricing: Copilot, WEM, QA and 24/7 support are paid add-ons.
- Very small teams that need a free plan (none listed)
Pricing: $19 per agent/month billed annually (Support Team) · Free trial
Freshdesk
Help desk from Freshworks with three per-agent plans, session-based AI pricing and a built-in knowledge base.
Support teams on a tight budget can shortlist this Freshworks help desk, since SAML SSO ships on all three per-agent plans. Its knowledge base sits inside the ticketing product. In a trial, check how the 500 included AI sessions hold up against your chatbot volume.
- Best for
- SMB support teams wanting low entry price and SAML SSO on every plan.
- Company size
- SMB to mid-market tiers.
Key features
- Help desk and chat integrations
- Connector app tasks $80 per 5,000.
Best for
- SMB support teams wanting low entry price and SAML SSO on every plan.
- Teams with moderate AI chatbot volume (500 sessions included)
Not ideal for
- Teams needing audit logs without paying for Enterprise.
- Teams wanting a free plan (none listed)
Pricing: $19 per agent/month billed annually (Growth) · Free trial
Bloomfire
Internal knowledge-sharing platform with AI search, sold on a fixed quote based on scope rather than per-user rates.
Mid-size and enterprise knowledge teams that want search to be the front door should request a quote, since the fixed price depends on scope rather than headcount. No self-serve trial exists. During evaluation, ask what onboarding and content migration the quote covers and test search on your own content.
- Best for
- Mid-size and enterprise teams that want a company-wide Q&A and knowledge library with search as the main feature.
- Company size
- Sales-led; quote includes onboarding and content migration scoping.
Key features
- Search and AI answers
- G2 reviewers highlight search and discovery (AI-written G2 summary)
Pros
- Search and discovery are called out as strong.
- Little training needed for end users.
Cons
- No public pricing, quote needed for any comparison.
Pricing: Contact sales
Document360
Quote-priced knowledge base platform for public or private documentation sites with workflow, analytics and an AI add-on.
Product and SaaS documentation owners get a public, private or mixed knowledge base here, governed by a Custom Workflow Builder with reviewers. Admins can set SSO, SCIM, IP restriction and roles. Because pricing is quote-only, ask for team accounts, languages and AI usage to be itemised.
- Best for
- Product and SaaS documentation teams needing public and private KBs.
- Company size
- SMB to enterprise software documentation teams (inferred from dedicated success manager and SSO/SCIM)
Key features
- Authoring and editing experience
- Collaborative editing and Custom Workflow Builder; editor types not detailed on features page.
- Search and AI answers
- Eddy AI features included in plans; AI Chatbot sold as add-on.
- Internal vs public access control
- Public, private or mixed KB; reader accounts for private KBs; SSO, SCIM, IP restriction, roles.
- Versioning and review workflows
- Custom Workflow Builder with reviewers.
Pros
- Ease of use (G2 9.3) and support (9.5)
- Clean, user-friendly editor.
Cons
- Learning curve for editor and advanced features.
- Occasional slow loading and limited functionality.
Pricing: Contact sales
Tettra
Internal wiki and AI Q&A tool built around Slack, with a published per-user price and SSO sold as an add-on.
Slack-centric teams of 10 or more can roll this out as a cheap internal wiki, with an AI bot answering questions in Slack. Budget for extra spend, since SSO and SCIM are add-ons and group permissions need SCIM. It is not a fit for public help centers.
- Best for
- Small and mid-size teams living in Slack that want a cheap internal wiki.
- Company size
- Small to mid-size; volume discounts past 250 licenses.
Key features
- Search and AI answers
- AI answers and AI bot in Slack included on Scaling.
- Internal vs public access control
- Group permissions require the SCIM add-on.
- Analytics and content gaps
- Usage analytics on Scaling.
- Help desk and chat integrations
- Slack bot; Google Workspace integration; API access.
Pros
- Easy setup.
- Responsive support.
Cons
- SSO and SCIM cost extra on the entry plan.
Pricing: $8 per user/month (Scaling, 10-user minimum) · Free trial
What to look for in knowledge base software
Start with the audience. A tool for customers needs a branded public site, search that tolerates vague questions and links to your help desk. A tool for employees needs permissions, Slack or Teams access and easy page editing, because a wiki that nobody updates quickly becomes wrong. Then check who will write and approve content, which systems must connect, and what the vendor publishes about SSO, roles and audit logs. The criteria below cover each of these points in the order buyers usually test them.
Authoring and editing experience
The editor decides whether people actually keep articles current, so it matters more than most buyers expect. Strong tools offer a clean writing view, support for tables and media, comments and real-time collaboration. Weak ones feel clunky, which slows contributors and leaves old pages in place. In a demo, ask a non-expert on your team to publish a page.
- Helpjuice: WYSIWYG editor with tables, custom HTML, drag-and-drop media, real-time editing and comments.
- Nuclino: Markdown-friendly editor per G2 summary.
- Confluence: Real-time collaborative editing with inline and page comments.
- Guru: Card-based knowledge with verification; details not confirmed.
- Notion: Block editor with databases and docs.
Search and AI answers
Search is how readers reach an answer, and it determines whether a knowledge base actually reduces tickets or questions in chat. Strong tools return the right article for loosely worded queries, search attachments and offer AI answers that cite their sources. Weak search ignores typos and buries results. Test it with real questions from your support inbox.
- Helpjuice: AI-powered search with 'Ask AI', searches PDFs and images (AI plans)
- Slite: Ask AI search on all paid plans; Agent and cross-tool search on Pro.
- Nuclino: Sidekick AI on Business; G2 complaint: search does not tolerate typos.
- Confluence: Advanced search, labels and hierarchy; Rovo AI summarizes and explains jargon (Standard and up per third party)
- Guru: Knowledge Agents and AI search, cited permission-aware answers, MCP delivery.
Internal vs public access control
Access control separates an employee wiki from a customer help center, and some products let you run both. Look for public, private and mixed spaces, roles for authors and readers, group permissions, and SSO. Check whether SCIM provisioning and IP restrictions are included or sold separately, since several vendors treat them as add-ons.
- Helpjuice: Restrict by URL, IP, user or group; four user role levels; SSO via Okta, Azure AD, Auth0.
- Slite: Enforced SSO and external IdPs on higher plans; public docs on custom domain (Pro)
- Nuclino: Publishing, custom domain, admin tools.
- Confluence: Page and space permissions for users, groups and anonymous from Standard.
- Guru: Role-based access, SSO, SCIM, audit logs (enterprise governance)
Versioning and review workflows
Versioning keeps content accurate over time. Strong tools keep page history with compare and restore, and add review or approval steps so drafts do not go live unchecked. Some also offer verification workflows that prompt owners to confirm a page is still correct. Ask how an approval request is routed and who is notified.
- Helpjuice: Version history with compare and restore; approval process for drafts.
- Slite: Doc verification workflow on Basic.
- Nuclino: 30-day history on Starter, unlimited on Business.
- Confluence: Page history, compare and revert on Free.
- Guru: Verification workflow not confirmed.
Analytics and content gaps
Analytics show what readers search for, which articles help and where content is missing. The most useful report is failed searches, because it tells authors exactly which pages to write next. Weaker tools only count page views. Ask whether search terms, article ratings and usage by team are included in the plan you are pricing.
- Helpjuice: Reports on article impact, search terms, top topics and user activity.
- Nuclino: Team insights on Business.
- Confluence: Page insights on Standard; site, space and page analytics on Premium.
- Document360: Pro Analytics listed; failed-search reporting not confirmed.
- Tettra: Usage analytics on Scaling.
Help desk and chat integrations
Integrations connect articles to the places where questions arise, such as the help desk, chat and your CRM. Strong tools suggest articles inside tickets, answer questions in Slack or Teams and offer an API. Check which named integrations are included, and whether any sit behind a higher plan or a paid connector.
- Helpjuice: 100+ integrations incl. Slack, Salesforce, Zendesk, Zapier, Teams, Freshdesk; API and Chrome extension.
- Slite: MCP and API access on Basic; search across connected tools on Pro.
- Confluence: Jira, Jira Service Management, Trello and Marketplace apps; Slack not named on features page.
- Guru: 100+ integrations (vendor page)
- Help Scout: Salesforce, Jira, HubSpot on Plus.
Pricing model
Pricing models differ widely: per author, per agent, per accepted user, flat monthly fees by user cap, or custom quotes. The model changes the total cost as your team or readership grows, so compare at your expected headcount and not just the entry price. Ask about minimums, add-ons for AI and SSO, and what changes at renewal.
- Helpjuice: Flat monthly fee tiered by user cap (30, 100, unlimited)
- Slite: Per user per month.
- Nuclino: Per user including guests.
- Confluence: Per user per month, annual, tiered by user count.
- Guru: Custom platform quote, includes solution engineering team.
Target company size
Wiki tools, help desk suites and enterprise knowledge platforms are built for different scales. Small-team tools stay simple and cheap but may lack SCIM, audit logs or approval flows. Enterprise tools add governance, but require a sales process and longer contracts. Pick a tool whose typical customer looks like your company.
- Helpjuice: Small teams to large organizations (unlimited-user tier)
- Slite: G2: 64.4% of reviewers at companies of 50 or fewer.
- Nuclino: Small teams; custom plan above 100 users.
- Confluence: Teams of all sizes; Free to 10 users, Enterprise for large deployments (up to 150 sites)
- Guru: Mid-size to enterprise.
Buying knowledge base software: security, admin and vendor checks
Once a tool fits the team, the purchase depends on what the vendor commits to in writing: single sign-on, user provisioning, audit logs, where data lives and the contract. The checks below use each vendor's public pages, so a blank means "ask", not "no".
- Try before you buy
- 9 of 12
- Publish SAML SSO
- 7 of 12
- Publish SCIM provisioning
- 3 of 12
- Publish a DPA
- 6 of 12
5 free trials, 4 free plans
ask the rest in writing
Slite, Notion and Tettra
request it before signing
Must-haves and what each vendor publishes
A blank is not a no, but it is work for your security review. Notion publishes the most (5 of 5); Bloomfire and Document360 publish none of these controls, so every question goes to their sales team. Tick what your team requires; vendors that drop out show why, and the budget check prices the plan that actually includes single sign-on when you require it.
All 12 vendors shown. Tick a must-have to filter. ● published with the plan, ◐ mentioned without plan or details, ○ not on the vendor's public pages.
| Vendor | SAML SSO | SCIM | Audit logs | Data residency | DPA |
|---|---|---|---|---|---|
| Notion5 of 5 published | ● PublishedBusiness | ● PublishedEnterprise | ● PublishedEnterprise | ● PublishedEnterprise only; regions not named | ● Published |
| Slite4 of 5 published | ● PublishedPro | ● PublishedEnterprise | ● PublishedEnterprise | ○ Not published | ● Published |
| Freshdesk3 of 5 published | ● PublishedAll plans | ○ Not published | ● PublishedEnterprise | ○ Not published | ● Published |
| Zendesk2 of 5 published | ○ Not published | ○ Not published | ◐ Mentioned | ● PublishedUS, AU, JP and EEA via Data Center Location add-on | ● Published |
| Help Scout2 of 5 published | ● PublishedPro | ○ Not published | ○ Not published | ○ Not published | ● Published |
| Tettra2 of 5 published | ● PublishedEnterprise | ● PublishedEnterprise | ○ Not published | ○ Not published | ○ Not published |
| Confluence0 of 5 published | ◐ MentionedVia Atlassian Guard subscription (separate); tier disputed by… | ◐ Mentioned | ○ Not published | ◐ MentionedEnterprise example in third-party source; Atlassian lists… | ○ Not published |
| Guru1 of 5 published | ○ Not published | ○ Not published | ◐ Mentioned | ○ Not published | ● Published |
| Helpjuice1 of 5 published | ● PublishedAI-Knowledge Base | ◐ Mentioned | ○ Not published | ○ Not published | ○ Not published |
| Nuclino1 of 5 published | ● PublishedBusiness (SAML 2.0) | ○ Not published | ◐ Mentioned | ○ Not published | ○ Not published |
| Bloomfire0 of 5 published | ○ Not published | ○ Not published | ○ Not published | ○ Not published | ○ Not published |
| Document3600 of 5 published | ○ Not published | ○ Not published | ○ Not published | ○ Not published | ○ Not published |
How to evaluate knowledge base tools
Use the criteria below as a structured trial plan. Give each tool the same set of real articles, the same test searches and the same group of authors. Test the editor, the search and the permissions with actual users, not only in the vendor demo. Note which capabilities depend on a higher plan or an add-on, and check the security and integration points with IT before anyone commits to the purchase.
Authoring and editing experience
Ask two or three real authors to write and update an article in the trial and tell you what slowed them down. Check formatting options, templates, media embedding and import from your current content. Ask whether occasional contributors need a paid seat. An editor that people avoid will leave you with outdated content.
Search and AI answers
Prepare ten real questions your customers or employees ask and run them in each tool. Compare results, check whether search handles typos and synonyms, and review any AI answers for accuracy and source citations. Ask where AI features send your content and whether they can be turned off. Treat AI claims as unproven until your test questions confirm them.
Internal vs public access control
Test the separation yourself: create a private article and confirm that a public visitor or a restricted group cannot reach it. Ask about user groups, page-level permissions, SSO and SCIM, and which plan includes them. For a public help center, check custom domains and indexing controls. Request the vendor's security documentation for your review.
Versioning and review workflows
Ask how an article moves from draft to published. Check approval steps, reviewer assignment, version history, restore options and review reminders for old content. Test whether an editor can roll back a bad change. If your content is regulated, ask for audit logs and confirm which plan includes them.
Analytics and content gaps
Ask to see a failed-search report and article-level performance in the trial. Confirm what the dashboard shows about search terms with no results and articles that are never opened. Ask how long data is retained and whether you can export it. Reporting is how you will know the knowledge base is working.
Help desk and chat integrations
List the tools your team already uses, such as your help desk, Slack or Microsoft Teams, and test each connection. Check whether agents can insert or suggest articles inside tickets and whether chat bots can draw from the knowledge base. Ask if integrations are native or require a paid app. Confirm who maintains the connection if an API changes.
Pricing model
Ask exactly who counts as a billable user: authors, agents, readers or all accounts. Get a quote for your headcount today and in two years, plus the price of AI, extra sites and support packages. Ask about minimum user counts and renewal caps. A tool that will not give a clear number before the trial ends deserves lower priority.
Target company size
Ask for reference customers of your size and check minimum user counts on each plan. Consider the migration path, because outgrowing a lightweight wiki later means moving all your content. Ask the vendor what they recommend when a team passes a given size. Match the product to your next two years, including onboarding effort and who will administer it.
Questions to ask knowledge base vendors
Use the sales call to get written answers on the points that decide how the tool behaves after launch. Send the same list to every vendor and compare the responses. Keep notes on anything the vendor cannot confirm, and ask for it in the order form or security documentation. These questions focus on the issues that most often surface late in a knowledge base purchase.
Which plan includes SSO, SCIM and audit logs?
In several tools these sit on upper tiers or are paid add-ons. If your security team requires them, you need to know the true plan price. Ask for a plan-by-plan comparison in writing.
Can we run a public help center and a private wiki in one account?
Some vendors serve one audience and some serve both. Ask how separation works and whether private content can ever be indexed or exposed. This avoids buying two tools or exposing internal pages.
How is AI search built and what happens to our content?
Ask which models are used, where content is processed, whether it trains any model and whether AI answers cite sources. Also ask how AI usage is billed. Your legal and security teams will want these answers.
How do we migrate content in and out?
Ask which import formats are supported, whether the vendor helps with migration and how you can export articles and attachments if you leave. Check URL redirects for an existing help center. Lock-in is easier to avoid before you sign.
Who counts as a billable user, and what are the renewal terms?
Definitions vary between authors, agents and readers. Ask for the contract length, auto-renewal terms and any cap on annual price increases. Get these in the order form.
Where is data hosted and which compliance documents are available?
Ask for hosting region options, a data processing agreement and security certifications. If you need EU hosting or HIPAA support, confirm which plan allows it. Not every vendor offers these on every tier.
How to run the decision
Run the decision as a short project. Define your audience, authors and security needs, shortlist three tools and trial each with real articles, searches and permissions. Send every vendor the same written questions about SSO, AI, hosting, migration and renewal terms. Involve IT and the content owners before you sign, and choose the tool that passes the trial and the security check.
Our recommendation
Pick the audience first, then narrow by editor, search and permissions. Choose a public help center tool for customers, a wiki for staff, or a platform that handles both if you need each. Shortlist two or three tools, test them with real articles and real questions, and ask each vendor about SSO, SCIM, audit logs and contract terms. Then name one owner for content and one for the purchase, so the rollout does not stall.
Knowledge Base Software: frequently asked questions
What is knowledge base software?
Knowledge base software is a searchable library for help articles, FAQs and how-to guides. Customers use it to solve problems without contacting support, and employees use it to find policies and procedures. Good tools add access control, version history, search and reports on what people look for.
What is the best knowledge base software for small business?
Small teams usually do best with a simple, low-cost tool. Nuclino has a free plan and a fast editor, Slite offers an AI search wiki at a published per-user price, and Help Scout combines a shared inbox with Docs for support teams under 25 users. Confluence is free for up to 10 users.
Internal vs external knowledge base: which do I need?
Choose an external knowledge base if the goal is to answer customer questions on a public site. Choose an internal one if the goal is to share policies and processes with staff. Helpjuice and Document360 can serve public and private needs, while Tettra, Slite and Bloomfire focus on internal use.
What features should knowledge base software have?
Look for a comfortable editor, strong search with AI answers, roles and permissions, version history with approvals, reporting on failed searches, and integrations with your help desk and chat tools. Add SSO and audit logs if IT or security reviews your purchases.
Is there a free knowledge base software?
Yes. Confluence is free for up to 10 users, Notion has a free plan, Nuclino is free for up to 50 items, and Help Scout is free for up to 5 users. Free plans often limit history, guests or security features such as SSO, so check them against your needs.
Which knowledge base software include SSO below the enterprise plan?
Helpjuice (Listed on AI-Knowledge Base ($449) and Unlimited ($799); not listed on the $249 plan (a third party says SAML is on all plans, not confirmed by the vendor)); Nuclino (Business (SAML 2.0)); Confluence (Via Atlassian Guard subscription (separate); tier disputed by sources); Help Scout (Pro includes SSO/SAML; add-on on lower tiers); Freshdesk (SAML SSO on all plans). The other tools either reserve SAML SSO for their top tier or do not say on their public pages.