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Ranked on the record · 138 apps

Best Knowledge Base Software 2026

Knowledge base software helps teams create, organize and publish internal or customer-facing information. This guide helps you compare tools for documentation, support content and shared company knowledge.

Compare free plans, paid starting points, publishing audience, article limits, custom domains, SSO support, version history and content analytics. Check platform fit across web, API, self-hosted, Windows, Linux and macOS options.

01

ProProfs Knowledge Base runs on web, Android, iOS and Windows, with a free plan and 25-article limit.

Free plan Free trial From $0.99 a month, billed yearly AndroidiPhone & iPadWebWindowsBrowser extensionAPI
Record8.7 Visit site The record
02

Confluence

Confluence runs on web, Android, iOS and self-hosted deployments for team knowledge publishing.

AndroidiPhone & iPadWeb+1
Record8.4 Visit
03

Nuclino

Nuclino offers web, Android, iOS, Windows, macOS and Linux access, plus a 50-article free tier.

AndroidiPhone & iPadWeb+4
Record8.4 Visit
05

Slite

Slite offers paid knowledge publishing across web, desktop, mobile and extensions, plus custom domains.

AndroidiPhone & iPadWeb+4
Record8.0 Visit
6
Zoho Learn

Zoho Learn is a web, Android and iOS knowledge base with a free plan and API access.

AndroidiPhone & iPadWeb+1 Free plan Record7.9 Visit
7
BlueSpice

BlueSpice is a self-hosted knowledge base with free and paid plans for internal or external publishing.

Self-hosted €4.50 a month, billed yearly Record7.7 Visit
8
XWiki

XWiki is a self-hosted and web knowledge base with free and paid plans, API access and Windows support.

WebWindowsLinux+2 Free plan Record7.7 Visit
9
GitBook

GitBook provides web publishing and API access for internal or external documentation.

WebAPI $65 a month, billed yearly Record7.7 Visit
10
Docmost

Docmost is open-source wiki software for collaborative editing on web and self-hosted installations.

WebAPISelf-hosted $72 a year Record7.7 Visit
11
Hudu

Hudu is a paid web, mobile and self-hosted knowledge base with API, extensions and SSO.

AndroidiPhone & iPadWeb+3 — Record7.5 Visit
12
Stack Internal

Stack Internal uses web and API access to turn AI tools, chats and wikis into verified knowledge.

WebAPI Free plan Record7.4 Visit
13
Elium

Elium is a paid knowledge base for web, mobile, extensions and self-hosted use, with SSO.

AndroidiPhone & iPadWeb+3 — Record7.3 Visit
14
tela
WebAPISelf-hosted $6 a month, billed yearly Record7.3 Visit
15
Wiki.js
WebWindowsMac+3 Free plan Record7.2 Visit
16
BookStack

BookStack suits people or organizations that want to manage information on their own self-hosted platform.

WebLinuxAPI+1 £450 a year Record7.2 Visit
17
Papyrs

Papyrs is a web, desktop and mobile knowledge base with a free plan and API access.

AndroidiPhone & iPadWeb+4 $89 a month, billed yearly Record7.1 Visit
18
TheHelpFlow

TheHelpFlow is a paid web and mobile knowledge base with API access, custom domains and SSO.

AndroidiPhone & iPadWeb+1 $29 a month, billed yearly Record7.0 Visit
19
Outline

Outline offers paid knowledge publishing on web, Windows, macOS, iOS, Android and Linux, with custom domains.

AndroidiPhone & iPadWeb+3 $10 a month, billed yearly Record7.0 Visit
20
IT Glue

IT Glue suits IT service providers and IT teams that need structured documentation, connected records, and password management.

AndroidiPhone & iPadWeb+2 $29 one-time Record7.0 Visit
21
Read the Docs
Web $50 a month, billed yearly Record7.0 Visit
22
Slab

Slab suits teams publishing shared knowledge across web and desktop computers.

WebWindowsMac $6.67 a month, billed yearly Record6.9 Visit
23
Intercom

Intercom is a paid web, Android and iOS support platform with live chat and a website chatbot.

AndroidiPhone & iPadWeb $19 a month, billed yearly Record6.9 Visit
24
Helpable
WebAPI $25 a month Record6.9 Visit
25
Guru

Guru provides an internal knowledge base on web, Android and iOS with SSO and version history.

AndroidiPhone & iPadWeb+2 — Record6.8 Visit

Before you choose

Check the pricing path

Pricing models include freemium and paid plans. A free plan can help you start without a subscription, while a free trial gives you a temporary way to evaluate a paid product.

ProProfs Knowledge Base lists a free plan, a paid plan from $0.99 per user per month with annual billing, and a 15-day trial.

Match the publishing audience

Compare where your articles will appear and who can read them. Publishing audience is a listed comparison field, so check whether a tool fits internal documentation, customer help content or both.

Choose a deployment fit

Web access is common in this category. API, self-hosted, Windows, Linux and macOS options also appear, so match the software to your team's systems and deployment needs.

Review access and change controls

SSO support can affect sign-in management for an organization. Version history helps track changes to documentation, so review both fields before choosing a workspace.

Check limits and reporting

Article limits may shape how much documentation you can publish. Custom domains can affect the address readers use, while content analytics can show how published material performs.

Consider source and hosting needs

Open-source products appear alongside hosted freemium and paid services. If you need control over deployment or code, check whether self-hosting and the product's licence match your requirements.

Questions

Do knowledge base tools offer free plans?
Yes. Free plans are available on part of the list, alongside paid plans and free trials.
Can I try paid knowledge base software before subscribing?
Free trials are available for part of the list. Trial length and terms depend on the product.
Which platforms can knowledge base software use?
Listed platform options include web, API, self-hosted, Windows, Linux and macOS.
What comparison fields matter for a knowledge base?
The list compares free plan, paid starting price, publishing audience, article limit, custom domain, SSO support, version history and content analytics.
Is open-source knowledge base software available?
Yes. Open-source products appear on the list alongside freemium and paid software.

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