What is a knowledge base?

A centralized, organized repository of information about a product, service, department, or topic. It's used for self-service by customers (external) or as a reference for employees (internal).

Who uses one?

Support managers and ops teams choosing knowledge base tools (Zendesk vs Confluence vs Notion vs Document360)

What does it cost?

Pricing varies. The cheapest provider in our Top 11 starts around $8/mo. See the cheapest providers ranked.

How do I pick one?

Read the full methodology for our 9.4-point scoring framework, then look at the canonical Document360 vs Zendesk Guide vs Intercom Articles: 11 Best Knowledge Base Software 2026. If you want a slice of the ranking by price, fit, or compliance, jump to: cheapest · highest-rated · fastest onboarding.

Source: Top 11 Document360 vs Zendesk Guide vs Intercom Articles: 11 Best Knowledge Base Software 2026, verified June 8, 2026.