Wiki.js is a powerful and extensible open source wiki software designed for creating and managing knowledge bases and documentation.

Wikidot is a wiki hosting service for creating and managing wikis.

PBworks is a secure, hosted online team collaboration software for capturing knowledge, sharing files, and managing projects for businesses and education.

Slab is knowledge base and wiki software for creating, organizing, and searching internal company documentation, used by technical and non-technical teams.

Outline is a modern, open-source team knowledge base and wiki offering intuitive editing, real-time collaboration, and powerful AI search for internal documentation.

BookStack is a simple, open-source, self-hosted platform for organizing information

XWiki is an open source Structured Wiki and knowledge management platform offering ready-to-use or custom solutions, on-premise or in the cloud.

Website-Scripts offers web-based software solutions including Knowledgebase Manager Pro, Form Maker Pro, and Form Processor Pro for knowledge management and web form processing.

Ikiwiki is a wiki compiler that converts wiki pages into static HTML, functioning as a flexible static site generator with dynamic features.

ShoutWiki is a free, ad-supported wiki hosting service offering MediaWiki software, advanced features, and customer support for individuals and communities.

Paradox Wikis appears to be a wiki platform or service, but the content is blocked, suggesting a focus on knowledge sharing or collaborative content creation.

Notejoy is a fast and focused note-taking application for individuals and teams, designed for real-time collaboration and knowledge management.

Klutch is an internal knowledge base and productivity tool for teams to organize a company wiki, manage canned responses, and streamline onboarding.

Kipwise is a lightweight company wiki and knowledge base tool featuring AI suggestions, built-in workflows, and powerful integrations to boost team productivity.

WikiTelevisions is a community-maintained database of wiki articles, functioning as a free encyclopedia focused on television-related topics.

DokuWiki is the best open source wiki software for documentation and collaboration and is used by enterprises and individuals alike.