Best Knowledge Base Software in 2026
Updated
In short: Confluence is ranked #1 of 138 as of 4 October 2026, ahead of ProProfs Knowledge Base and Nuclino. The best-ranked option with a free plan is ProProfs Knowledge Base. The lowest first paid tier on this page is Slite at $0.83/mo.
Keeping useful answers organized starts with choosing how content is published, maintained, and made available to readers. Compared on article limits, content analytics, custom domains, free plans, paid-from prices, publishing audiences, SSO support, and version history, knowledge base software can be weighed against your team’s needs. Confluence, ProProfs Knowledge Base, and Nuclino are among the services shown. Consider whether material is for an internal audience or broader publishing, and how important it is to review content performance or track changes. Article limits can help frame capacity, while SSO support bears on access. A custom domain, free-plan availability, and listed paid-from pricing offer further points to compare.
138 knowledge base software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 Confluence iPhone + Android RecognisedPhone appDocumentedFree plan 9.7$5.42/mo Publishing audience: bothCustom domain: Yes
- 2 ProProfs Knowledge Base iPhone + Android RecognisedPhone appDocumentedFree plan 9.7$0.99/mo Publishing audience: bothArticle limit: 25 articlesCustom domain: Yes
- 3 Nuclino iPhone + Android RecognisedPhone appDocumentedFree plan 9.5Free Publishing audience: bothArticle limit: 50 articlesCustom domain: Yes
- 4 Zoho Learn iPhone + Android RecognisedPhone appDocumentedFree plan 9.4Free Publishing audience: bothCustom domain: Yes
- 5 Elium iPhone + Android RecognisedPhone appDocumentedFree plan 8.5€15/mo
- 6 Slite iPhone + Android RecognisedPhone appDocumentedFree plan 8.5$0.83/mo Publishing audience: bothCustom domain: Yes
- 7 Hudu iPhone + Android RecognisedPhone appDocumentedFree plan 8.5
- 8 TheHelpFlow iPhone + Android RecognisedPhone appDocumentedFree plan 8.4$29/mo Publishing audience: bothCustom domain: Yes
- 9 Outline iPhone + Android RecognisedPhone appDocumentedFree plan 8.4$10/mo Publishing audience: bothCustom domain: Yes
- 10 IT Glue iPhone + Android RecognisedPhone appDocumentedFree plan 8.4$29/mo
- 11 Notejoy iPhone + Android RecognisedPhone appDocumentedFree plan 8.4$5/mo
- 12 Papyrs iPhone + Android RecognisedPhone appDocumentedFree plan 8.4Free
- 13 BlueSpice No phone app RecognisedPhone appDocumentedFree plan 8.2€4.50/mo Publishing audience: bothCustom domain: Yes
- 14 Intercom iPhone + Android RecognisedPhone appDocumentedFree plan 8.2$19/mo Publishing audience: Customers using a website, app, or product experience
- 15 GitBook No phone app RecognisedPhone appDocumentedFree plan 8.1$65/mo Publishing audience: bothCustom domain: Yes
- 16 Docmost No phone app RecognisedPhone appDocumentedFree plan 8.0Free Publishing audience: both
- 17 Slab No phone app RecognisedPhone appDocumentedFree plan 7.8$6.67/mo Publishing audience: bothCustom domain: Yes
- 18 Waybook iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$99/mo
- 19 Lark iPhone + Android RecognisedPhone appDocumentedFree plan 7.8Free
- 20 Wiki.js No phone app RecognisedPhone appDocumentedFree plan 7.7Free Publishing audience: bothCustom domain: Yes
- 21 BookStack No phone app RecognisedPhone appDocumentedFree plan 7.6£37.50/mo Publishing audience: bothCustom domain: Yes
- 22 Stonly iPhone + Android RecognisedPhone appDocumentedFree plan 7.6Free
- 23 Stack Internal No phone app RecognisedPhone appDocumentedFree plan 7.5Free
- 24 Docsie No phone app RecognisedPhone appDocumentedFree plan 7.5$170/mo Custom domain: Yes
- 25 Paligo No phone app RecognisedPhone appDocumentedFree plan 7.5$416.67/mo Custom domain: Yes
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which knowledge base software is ranked first on Samsung Mobile US Press?
Confluence is ranked #1 of 138 with a score of 9.7. ProProfs Knowledge Base is second and Nuclino third.
How many of these have a free plan?
16 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Slite has the lowest first paid tier we found: $0.83/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.