Twiki Alternatives

DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.

MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.

WackoWiki is a light and easy to install multilingual Wiki-engine.

open-source

Foswiki is the free and open source enterprise collaboration platform.

Nuclino is a unified real-time workspace for teams that brings all your notes, tasks, and docs together in one place.

freemium

A powerful Open Source collaborative platform enhancing collaboration and communication.

An open source, modern and powerful wiki app built on Node.js, Git, and Markdown.

a non-linear personal web notebook

Beautiful Wikis for Teams. Get started today, free forever!

Confluence is content collaboration software that changes how modern teams work

WikkaWiki is a flexible, standards-compliant and lightweight wiki engine written in PHP.

MoinMoin is an advanced, easy to use and extensible WikiEngine with a large community of users.

PmWiki is a wiki-based system for collaborative creation and maintenance of websites.