Best Knowledge Base Software in 2026: 12 Tools Compared by Company Size and Requirements

Top picks by situation

• An internal wiki for a team on Jira

  Confluence

  No charge for up to 10 users, page history on the free tier and close Jira links; Standard adds page and space permissions plus page insights.

  From: Free up to 10 users

• A branded customer help center at a flat fee

  Helpjuice

  Pricing is a monthly fee by user cap, starting at $249 for 30 users, with version history, approval for drafts and reports on search terms.

  From: $249 per month (Knowledge Base, up to 30 users)

• Product docs with public and private sections

  Document360

  A knowledge base can be public, private or mixed, with workflow reviewers, SSO, SCIM and a dedicated success manager for every customer.

  From: Contact sales

• A 30-person European startup wanting an AI wiki

  Slite

  Every paid plan includes Ask AI search, production data sits in Belgium under an EU setup, and SOC 2 Type II plus a public DPA are listed.

  From: $10 per user/month billed yearly (Basic)

• Support and sales teams needing verified answers in Slack

  Guru

  Cited, permission-aware AI answers appear in work tools, with SSO, SCIM and audit logs under enterprise governance and a solution engineering team in the quote.

  From: Contact sales

• A five-person team wanting a quick, free wiki

  Nuclino

  The free plan holds up to 50 items, Markdown is handled cleanly, and the Business plan adds SAML SSO plus an audit log.

  From: Free (up to 50 items)

Knowledge Base Software comparison table

Knowledge Base Software compared

Tool	Best for	Starting price	Free plan	Free trial	G2 rating
Freshdesk	SMB support teams wanting low entry price and SAML SSO on every plan	$19 per agent/month billed annually (Growth)	No	Yes	4.4 (3,750 reviews)
Help Scout	Small support teams under 25 users that want a simple inbox plus Docs	Free up to 5 users	Yes	Yes	4.4 (428 reviews)
Document360	Product and SaaS documentation teams needing public and private KBs	Contact sales	No	Not stated	4.7 (501 reviews)
Tettra	Small and mid-size teams living in Slack that want a cheap internal wiki	$8 per user/month (Scaling, 10-user minimum)	No	Yes	4.7 (159 reviews)
Helpjuice	Teams that want predictable flat monthly cost	$249 per month (Knowledge Base, up to 30 users)	No	Yes	4.7 (380 reviews)
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	No	4.6 (509 reviews)
Slite	Small and mid-size teams wanting an AI search wiki at a published price	$10 per user/month billed yearly (Basic)	No	Yes	4.6 (271 reviews)
Zendesk	Support teams that want a broad omnichannel suite with a regional data hosting option	$19 per agent/month billed annually (Support Team)	No	Yes	4.3 (7,001 reviews)
Guru	Sales and support teams needing verified answers in Slack, browser and chat	Contact sales	No	Not stated	4.7 (2,344 reviews)
Confluence	Teams already on Jira or Jira Service Management	Free up to 10 users	Yes	Not stated	4.1 (4,233 reviews)
Notion	Startups and small teams combining wiki and project tracking	Free	Yes	Not stated	4.6 (10,967 reviews)
Nuclino	Small teams wanting a simple, fast wiki with a free plan	Free (up to 50 items)	Yes	Yes	4.7 (24 reviews)

What is knowledge base software?

Knowledge base software holds help articles, FAQs and step-by-step procedures in one searchable library. Companies publish it for customers, who then find answers without opening a ticket, or keep it private so employees can look up policies and processes. Authors write and update pages in an editor, reviewers approve them, and search or an AI assistant brings up the right page. Analytics reveal which searches found nothing, which tells the team what to write next. Support departments, IT groups, HR and product organizations all depend on knowledge base software to keep answers consistent as headcount grows.

Core capabilities

• Article editor

  Lets non-technical staff write, format and update pages with images, tables and links, usually together in real time.

• Search and AI answers

  Finds the right article from a loose question, and newer tools write a cited answer from the library.

• Public and private access

  Separates a customer help center from an employee wiki with roles, groups and single sign-on.

• Versioning and approvals

  Keeps page history and routes drafts to a reviewer so content stays accurate.

• Analytics and content gaps

  Reports article views, ratings and failed searches to show where content is missing.

• Help desk and chat integrations

  Suggests articles inside tickets, Slack or chat so agents and customers see answers where they work.

The 12 best knowledge base software, reviewed

1

Freshdesk

$19 per agent/month billed annually (Growth)

Freshdesk comes from Freshworks and bundles a knowledge base into its help desk, sold in three per-agent plans with AI charged per session. Every plan has SAML SSO, but audit logs stay on Enterprise. No free plan is listed, and Growth costs $19 per agent.

• 1-10: no data
• 11-50: strong fit
• 51-500: strong fit
• 500+: no data

Best for

• SMB support teams wanting low entry price and SAML SSO on every plan
• Teams with moderate AI chatbot volume (500 sessions included)

Look elsewhere if

• Teams needing audit logs without paying for Enterprise
• Teams wanting a free plan (none listed)

Key features

Help desk and chat integrations

Connector app tasks $80 per 5,000

Pricing model

Per agent plus AI session packs

Target company size

SMB to mid-market tiers

Full Freshdesk profileRequest an offer

2

Help Scout

Free up to 5 users

Help Scout is a help desk in shared-inbox style that ships with Docs, its knowledge base. Teams of up to 25 on Standard are the typical buyers, and the free tier serves 5 users. Pro brings SSO and HIPAA support but needs 10 or more users.

• 1-10: strong fit
• 11-50: strong fit
• 51-500: workable
• 500+: no data

Best for

• Small support teams under 25 users that want a simple inbox plus Docs
• Teams needing HIPAA support (Pro plan, BAA)

Look elsewhere if

• Teams needing SSO below the Pro plan (SSO is an add-on or Pro, 10 users minimum)

Key features

Help desk and chat integrations

Salesforce, Jira, HubSpot on Plus

Pricing model

Per user plus per-resolution AI

Target company size

Under 25 users on Standard; Pro for larger

Full Help Scout profileRequest an offer

3

Document360

Contact sales

Document360 builds public or private documentation sites for product and SaaS teams, with a workflow builder, roles and IP restriction. Pricing is a custom quote based on editors, workspaces, languages, SSO and AI. Every customer gets a dedicated success manager, and standard migration is included in most quotes.

• 1-10: poor fit
• 11-50: strong fit
• 51-500: strong fit
• 500+: workable

Best for

• Product and SaaS documentation teams needing public and private KBs
• Teams wanting a dedicated success manager and migration included

Look elsewhere if

• Buyers who want public self-serve pricing
• Very small teams needing a cheap wiki

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

Analytics and content gaps

Pro Analytics listed; failed-search reporting not confirmed

Help desk and chat integrations

Connects to third-party help desks, chatbots and collaboration tools (specific names not listed by the vendor)

Pricing model

Custom quote by team accounts, workspaces, languages, SSO and AI usage

Target company size

SMB to enterprise software documentation teams (inferred from dedicated success manager and SSO/SCIM)

What users like

• Ease of use (G2 9.3) and support (9.5)
• Clean, user-friendly editor

Common complaints

• Learning curve for editor and advanced features
• Occasional slow loading and limited functionality

Full Document360 profileRequest an offer

4

Tettra

$8 per user/month (Scaling, 10-user minimum)

Tettra is a wiki for internal use built around Slack, plus AI answers to team questions. Scaling costs $8 per user with a 10-user minimum, and SSO plus SCIM are paid extras there. Customer-facing help centers are outside its scope.

• 1-10: poor fit
• 11-50: strong fit
• 51-500: strong fit
• 500+: no data

Best for

• Small and mid-size teams living in Slack that want a cheap internal wiki
• Teams of 10 or more who want a published monthly price

Look elsewhere if

• Teams under 10 users (10-user minimum on Scaling)
• Buyers who need SSO and SCIM included in the base plan
• Customer-facing help centers

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

Pricing model

Per accepted user, 10-user minimum

Target company size

Small to mid-size; volume discounts past 250 licenses

What users like

• Easy setup
• Responsive support

Common complaints

• SSO and SCIM cost extra on the entry plan

Full Tettra profileRequest an offer

5

Helpjuice

$249 per month (Knowledge Base, up to 30 users)

Helpjuice does not bill per seat. One monthly sum covers 30, 100 or any number of users depending on the tier, and the upper two tiers add AI. Branded help centers, live co-editing and SSO through Okta, Azure AD or Auth0 are covered. SCIM is reportedly missing.

• 1-10: poor fit
• 11-50: strong fit
• 51-500: strong fit
• 500+: workable

Best for

• Teams that want predictable flat monthly cost
• Support teams needing a customizable branded help center

Look elsewhere if

• Teams under 30 users with tiny budgets (cheapest plan $249 per month)
• Buyers needing SCIM provisioning (third-party says unsupported)

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

Analytics and content gaps

Reports on article impact, search terms, top topics and user activity

Help desk and chat integrations

100+ integrations incl. Slack, Salesforce, Zendesk, Zapier, Teams, Freshdesk; API and Chrome extension

Pricing model

Flat monthly fee tiered by user cap (30, 100, unlimited)

Target company size

Small teams to large organizations (unlimited-user tier)

What users like

• Ease of use and setup
• Responsive support

Common complaints

• Limited customization in places
• Editing can feel clunky

Full Helpjuice profileRequest an offer

6

Bloomfire

Contact sales

Bloomfire offers internal knowledge sharing with AI search, priced as a fixed quote tied to scope, with no per-user counting. Sales scopes onboarding and content migration. Mid-size and enterprise teams are the audience; it does not target customer help centers.

• 1-10: poor fit
• 11-50: poor fit
• 51-500: strong fit
• 500+: strong fit

Best for

• Mid-size and enterprise teams that want a company-wide Q&A and knowledge library with search as the main feature
• Buyers who prefer a fixed price with no per-user counting

Look elsewhere if

• Small teams wanting a published price or self-serve trial
• Customer-facing help centers (positioned as internal knowledge sharing)

Key features

Search and AI answers

G2 reviewers highlight search and discovery (AI-written G2 summary)

Pricing model

Fixed quote based on scope, no user counts or consumption charges

Target company size

Sales-led; quote includes onboarding and content migration scoping

What users like

• Search and discovery are called out as strong
• Little training needed for end users

Common complaints

• No public pricing, quote needed for any comparison

Full Bloomfire profileRequest an offer

7

Slite

$10 per user/month billed yearly (Basic)

Slite is a team wiki built around AI, priced per user. Paid plans include Ask AI, and Basic adds a verification workflow for pages. SCIM and audit logs are Enterprise-only. It serves internal knowledge, not public help centers.

• 1-10: workable
• 11-50: strong fit
• 51-500: strong fit
• 500+: workable

Best for

• Small and mid-size teams wanting an AI search wiki at a published price
• European buyers wanting EU-hosted data (Belgium)

Look elsewhere if

• Teams needing SCIM below Enterprise
• Customer-facing help centers (internal wiki positioning)

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

Pricing model

Per user per month

Target company size

G2: 64.4% of reviewers at companies of 50 or fewer

What users like

• Intuitive interface
• Real-time collaboration

Common complaints

• Limited formatting for complex documentation
• Occasional crashes when pasting into tables (one reviewer)

Full Slite profileRequest an offer

8

Zendesk

$19 per agent/month billed annually (Support Team)

Zendesk is an enterprise-grade help desk that includes the Guide knowledge base, sold per agent with per-resolution AI fees. Data hosting can be chosen in the US, Australia, Japan or the EEA through an add-on. Copilot, quality assurance and 24/7 support are paid extras.

• 1-10: poor fit
• 11-50: workable
• 51-500: strong fit
• 500+: strong fit

Best for

• Support teams that want a broad omnichannel suite with a regional data hosting option
• Teams comfortable paying per AI resolution

Look elsewhere if

• 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)

Key features

Pricing model

Per agent plus per-resolution AI fees and add-ons

Target company size

Tiers from Support Team to Enterprise

Full Zendesk profileRequest an offer

9

Guru

Contact sales

Guru is a knowledge platform that surfaces verified answers, with sources cited, wherever employees already work. Contracts are custom quotes for mid-size and enterprise buyers and include a solution engineering team. Its governance bundle lists SAML SSO, SCIM, audit logs and roles.

• 1-10: poor fit
• 11-50: poor fit
• 51-500: strong fit
• 500+: strong fit

Best for

• Sales and support teams needing verified answers in Slack, browser and chat
• Mid-size and enterprise orgs wanting SSO, SCIM and governance

Look elsewhere if

• Small teams wanting public per-seat pricing
• Public customer-facing help centers

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

Help desk and chat integrations

100+ integrations (vendor page)

Pricing model

Custom platform quote, includes solution engineering team

Target company size

Mid-size to enterprise

What users like

• Intuitive onboarding and browser extension
• Helpful support team

Common complaints

• Opaque pricing
• Price rise versus older per-seat tiers (inferred from conflicting price listings)

Full Guru profileRequest an offer

10

Confluence

Free up to 10 users

Confluence is Atlassian's team wiki with deep ties to Jira, sold per user in Free, Standard, Premium and Enterprise. The Free tier stops at 10 users. Single sign-on and SCIM need a separate Atlassian Guard subscription, and reviewers describe confusing navigation and search.

• 1-10: strong fit
• 11-50: strong fit
• 51-500: strong fit
• 500+: strong fit

Best for

• Teams already on Jira or Jira Service Management
• Internal wikis and project documentation at any size

Look elsewhere if

• Public customer-facing help centers as the main goal
• Buyers who need SSO without buying an extra Atlassian Guard subscription

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

Analytics and content gaps

Page insights on Standard; site, space and page analytics on Premium

Help desk and chat integrations

Jira, Jira Service Management, Trello and Marketplace apps; Slack not named on features page

Pricing model

Per user per month, annual, tiered by user count

Target company size

Teams of all sizes; Free to 10 users, Enterprise for large deployments (up to 150 sites)

What users like

• Best-in-class integration with Jira and Atlassian tools
• Easy to use shared knowledge base

Common complaints

• Navigation and layout can be confusing
• Search is hard to use

Full Confluence profileRequest an offer

11

Notion

Free

Notion is a flexible workspace for wikis, docs and databases, priced per member, with Notion AI bundled in Business and Enterprise. SAML SSO starts on Business and SCIM on Enterprise. It has no native help desk, so it works better internally than as a support center.

• 1-10: strong fit
• 11-50: strong fit
• 51-500: workable
• 500+: workable

Best for

• Startups and small teams combining wiki and project tracking
• Teams wanting flexible databases and docs in one tool

Look elsewhere if

• Teams needing time tracking or workload planning
• Companies needing SCIM or audit logs below Enterprise

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)

Help desk and chat integrations

Slack link previews, GitHub and Jira embeds noted; no native help desk

Pricing model

Per member per month; yearly saves up to 20%

Target company size

Two-thirds of G2 reviews from small business; Enterprise tier for large orgs

What users like

• Flexibility to build docs, wikis and databases
• Strong product direction (G2 sub-score 9.4)

Common complaints

• Learning curve (ease of use 8.3, lowest sub-score)
• Gaps for time tracking and resource planning

Full Notion profileRequest an offer

12

Nuclino

Free (up to 50 items)

Nuclino is a lightweight wiki with a free plan limited to 50 items and paid tiers that charge per user, guests included. SAML SSO and an audit log are on Business. Over 100 users requires a custom plan, and G2 reviewers complain that search tolerates typos poorly.

• 1-10: strong fit
• 11-50: strong fit
• 51-500: workable
• 500+: poor fit

Best for

• Small teams wanting a simple, fast wiki with a free plan
• Teams that need SAML SSO at a lower tier than enterprise suites

Look elsewhere if

• Teams over 100 users (custom talk needed)
• Heavy workflow or approval needs
• Customer help centers

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

Analytics and content gaps

Team insights on Business

Pricing model

Per user including guests

Target company size

Small teams; custom plan above 100 users

What users like

• Easy to use, simple design
• Clean markdown handling

Common complaints

• Search handles typos poorly

Full Nuclino profileRequest an offer

How to choose knowledge base software

Feature coverage at a glance

A check means the vendor documents the capability publicly (hover for the detail). A dash means we found no public documentation, which is a question to put in your request, not proof the feature is missing.

Knowledge Base Software requirements checklist

Use this list to write down what your team actually needs. Sorting requirements into must-have, should-have and nice-to-have is what lets vendors quote accurately instead of pitching their biggest plan.

Turn this checklist into a request

Questions vendors will ask you

Have answers ready for these, and your first conversation with a vendor starts at pricing instead of discovery.

1. Is the knowledge base for customers, employees or both?Some products serve only one audience, which narrows the list quickly.
2. How many authors and how many readers will you have?Pricing can count editors, agents, all users or a flat user cap.
3. Which help desk or chat tools should connect?Native integrations decide whether agents can use articles inside tickets.
4. Do you need approval workflows and article history?Workflow features sit on different plans for different vendors.
5. How many articles must be migrated, and from which system?Migration help is included by some vendors and billed by others.
6. Do you need AI answers, and what monthly volume do you expect?AI is billed per session, per resolution or by credits, which changes the total.

Example request

Write your own request

Knowledge Base Software FAQ

The bottom line

Decide first whether the library serves customers, employees or both, because that removes half of the options. Then check approval workflows, search and SSO against your must-haves and compare the remaining tools on how they bill authors, readers and AI. A precise request on SaaSBid helps vendors quote the correct plan and migration scope, so the offers are comparable.

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