PmWiki vs. TWiki vs. Confluence vs. XWiki

General Features PmWiki TWiki Confluence XWiki
Version
2.3.33
TWiki-6.1.0
5.2
16.3.0
Last Release Date
2024-04-20 (15 days ago)
2018-07-15 (5 years ago)
2013-08-12 (10 years ago)
2024-04-29 (6 days ago)
Last Update here
2024-04-21 (14 days ago)
2019-07-19 (4 years ago)
2013-08-22 (10 years ago)
2024-04-30 (5 days ago)
Author
Petko Yotov (Original author: Patrick R. Michaud)
Peter Thoeny, TWiki community
Atlassian
XWiki Development Team
URL
Free and Open Source
Yes
Yes
No
Yes
License
GPL2+
GPL
Commercial + Free personal/open source project/community use
LGPL + Free hosting on https://myxwiki.org for individuals/non profit
Programming Language
PHP
Perl, JavaScript
Java
Java
Data Storage
Files
Files, RCS
Database
Database, RCS
License Cost/ Fee
0
N/A
starting at US $10 installed (unlimited wikis)
0
Development status
Mature
Mature
Mature
Mature
Intended Audience
All
Large enterprise; small to medium businesses
Enterprise + Technical Teams
Enterprise, Workgroups, Developers
Hosting Features PmWiki TWiki Confluence XWiki
Storage Quota
N/A
N/A
Unlimited
Bandwidth Quota
N/A
N/A
Other Limits
N/A
N/A
No
Topic Restrictions
N/A
N/A
No
Corporate Branding
N/A
N/A
Yes
Yes
Own Domain
N/A
N/A
Optional
Yes
Ads allowed
N/A
N/A
No
No
System Requirements PmWiki TWiki Confluence XWiki
Operating System
Linux, UNIX, Windows, MacOS X, probably others
Linux, Windows, OS-X and other
Windows, Linux and Unix variants
Any platform supporting Java 11 or greater
Root Access
No
No
No
No
Webserver
Apache, IIS, anything with PHP support. Can also be run w/o a webserver.
Almost any webserver, typically Apache and Ngnix
Apache Tomcat
Servlet 3.1+
Other Requirements
none
RCS (optional), cron/scheduler, fgrep, egrep; Plugins may have additional dependencies
Oracle JDK 1.6.0_4+
Java 11, MySQL/MariaDB/PostgreSQL/HSQLDB/etc (JDBC Driver required)
Datastorage PmWiki TWiki Confluence XWiki
Text Files
Yes
Yes
No
No
MySQL
Plugin
No
Yes
Yes
PostgreSQL
No
No
Yes
Yes
Oracle
No
No
Yes
Yes
SQLite
Plugin
No
No
No
BerkeleyDB
No
No
No
No
RCS
Plugin
Yes
No
Plugin
Other
Compressed, XML and/or ephemeral files (modules). Can provide custom data backends.
RcsLite Perl library for version control without external RCS; backend API for other storage
JDBC Databases and in general any database supported by Hibernate; any custom implementation, as the storage is pluggable. Attachments can be saved on the filesystem
Security/Anti-Spam PmWiki TWiki Confluence XWiki
Page Permissions
Yes
Yes
Yes
Yes
ACL
Yes
Yes
Yes
Yes
Authentication Backends
Internal: per page, per group, per user, per user group. External: .htpasswd, LDAP, Active Directory. Plugins: Mailman, forums w/MySQL, oAuth, custom possible.
Internal authentication; anything Apache supports such as LDAP, NIS, AD, Kerberos
LDAP, NTLM, Siteminder, CAS and more
XWiki, LDAP, custom (Open API), Kerberos, NTLM, Headers, PUMA, SAML, Trusted LDAP, Sun SSO
Host Blocking
Optional
Plugin
No
No
Mail Encryption
Optional
Yes
Optional
Yes
nofollow
Yes
Plugin
Optional
No
Blacklist
Optional
Plugin
No
Plugin
CAPTCHA
Plugin
Plugin
Yes
Yes
Delayed Indexing
Optional
Plugin
No
Yes
Development/Support PmWiki TWiki Confluence XWiki
# of Consultants
Preconfigured Hosting
Yes
Yes
Yes
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
Stars on GitHub
N/A
N/A
N/A
N/A
Common Features PmWiki TWiki Confluence XWiki
Preview
Yes
Yes
Yes
Yes
Minor Changes
Yes
Yes
Yes
Yes
Change Summary
Yes
Yes
Yes
Yes
Page History
Yes
Yes
Yes
Yes
Page Revisions
Unlimited
Unlimited
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Between all
Sitemap
Yes
Yes
Yes
Yes
Plugin System
Yes
Yes
Yes
Yes
Special Features PmWiki TWiki Confluence XWiki
Unicode Support
Yes
Yes
Yes
Yes
Right-to-Left Support
Optional
No
No
No
Interface Languages
38
Arabic, Bulgarian, Breton, Catalan, Czech, Danish, German, Greek, English, Esperanto, Spanish, Persian, Finnish, French, Hungarian, Indonesian, Italian, Japanese, Lithuanian, Latvian, Lettish, Macedonian, Dutch, Norwegian, Polish, Portuguese, Brazilian Portuguese, Romanian, Russian, Slovak, Slovenian, Albanian, Swedish, Tamil, Turkish, Ukrainian, Vietnamese, Chinese, Chinese Traditional
19
Bulgarian, Czech, Danish, German, English, Spanish, Finnish, French, Italian, Japanese, Korean, Dutch, Polish, Portuguese, Russian, Swedish, Ukrainian, Chinese, Chinese Traditional
15
Danish, German, Greek, English, Spanish, Finnish, French, Hungarian, Japanese, Korean, Portuguese, Russian, Swahili, Chinese, Chinese Traditional
40
Bulgarian, Catalan, Czech, Danish, German, Greek, English, Spanish, Persian, French, Galician, Hindi, Croatian, Hungarian, Indonesian, Italian, Japanese, Cambodian, Kannada, Korean, Lithuanian, Latvian, Lettish, Marathi, Dutch, Norwegian, Polish, Portuguese, Brazilian Portuguese, Romanian, Russian, Sinhalese, Slovak, Slovenian, Swedish, Turkish, Uighur, Ukrainian, Vietnamese, Chinese, Chinese Traditional
Email notification
Optional
Yes
Yes
Yes
Comments
Discussion Pages
Threaded
Threaded
Threaded
Categories
Yes
Yes
Yes
Yes
Namespaces
Yes
Yes
Yes
Yes
Conflict Handling
Conflict Resolution
Conflict Resolution
Conflict Resolution
Conflict Resolution
Concurrent Editing
Yes
Unknown
Unknown
Plugin
Search
Full Text
Full Text
Full Text
Full Text
Wiki Farming
Yes
Optional
Yes
Yes
Structured Data
Yes
Yes
Plugin
Yes
Links PmWiki TWiki Confluence XWiki
CamelCase
Optional
Yes
Yes
Yes
Freelinks
Yes
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
Yes
InterWiki
Yes
Yes
Optional
Yes
SisterWiki
Plugin
Plugin
No
Yes
Image Links
Yes
Yes
Yes
Yes
Windows Shares
Yes
Plugin
Yes
Yes
Page Redirects
Yes
Plugin
Plugin
Yes
Syntax Features PmWiki TWiki Confluence XWiki
HTML Tags
Plugin
All
Optional
All
Math formulas
Plugin
Plugin
Plugin
Yes
Tables
simple + complex
simple + complex
simple + complex
simple + complex
CREOLE support
Optional
No
No
Yes
Markdown Support
Plugin
No
No
Yes
Textile Support
No
Plugin
Yes
No
BBCode Support
Plugin
No
No
No
Emoticon Images
Plugin
Yes
Yes
Yes
Syntax Highlighting
Optional
Plugin
Yes
Yes
Footnotes
Plugin
Plugin
Plugin
Yes
Quoting
Plugin
Yes
Yes
Yes
Internal Comments
Yes
Yes
Plugin
Yes
Custom styles
Yes
Yes
Yes
Yes
FAQ Tags
Yes
Yes
Yes
Plugin
Scripting
MarkupExpressions (core, many add-ons). PageLists with templates (core structured data scripting). WikiSh (plugin), Data forms (optional)
TWiki Markup Language, TWiki variables, JavaScript, extensive API
Macros, plugins, widgets, JavaScript and more
velocity, groovy, ruby, jython, generic JSR223 & very powerful API
Content Includes
Yes
Yes
Yes
Yes
Feed Aggregation
Plugin
Yes
Yes
Yes
Usability PmWiki TWiki Confluence XWiki
Section Editing
Plugin
Plugin
No
Yes
Page Templates
Yes
Yes
Yes
Yes
Double-Click Edit
Plugin
Plugin
No
No
Toolbar
Optional
Plugin
Yes
Yes
WYSIWYG Editing
Plugin
Yes
Yes
Yes
Access Keys
Yes
Yes
Yes
Yes
Auto Signature
Yes
Yes
No
No
Statistics PmWiki TWiki Confluence XWiki
Recent Changes
Yes
Yes
Yes
Yes
Wanted Pages
Optional
No
Yes
Yes
Orphaned Pages
Optional
Plugin
Yes
Yes
Most/Least Popular
No
Yes
Yes
Yes
Recent Visitors
Plugin
Plugin
No
Yes
Analysis
Plugin
Yes
Yes
Yes
Output PmWiki TWiki Confluence XWiki
Printer Friendly
Print View
Print View
Print CSS
Print CSS
Mobile Friendly
Yes
Plugin
Plugin
Yes
Themes & Skins
Yes
Yes
Yes
Yes
RSS Feeds
Optional
Yes
Yes
Yes
ATOM Feeds
Optional
Yes
Yes
Optional
Abbreviations
Plugin
Plugin
No
Plugin
Auto-TOC
Optional
Yes
Yes
Optional
Raw Export
Yes
Yes
Yes
Yes
HTML Export
Plugin
Yes
Yes
Yes
XML export
Plugin
Plugin
Yes
Yes
PDF Export
Plugin
Plugin
Yes
Yes
Office Export
Plugin
Unknown
Unknown
Yes
Media and Files PmWiki TWiki Confluence XWiki
File Attachments
Optional
Yes
Yes
Yes
Media Revisions
Optional
Yes
Yes
Yes
Embedded Flash
Plugin
Plugin
Yes
Yes
Embedded Video
Plugin
Plugin
Yes
Yes
Image Editing
Plugin
Plugin
Plugin
Plugin
SVG Editing
No
Plugin
Plugin
Plugin
MindMap Editing
Plugin
Plugin
Plugin
Plugin
Media Search
Filenames only
Contents
Contents
Contents
Extras PmWiki TWiki Confluence XWiki
Calendar
Plugin
Plugin
Plugin
Plugin
Image Galleries
Plugin
Plugin
Yes
Yes
Presentations
Plugin
Unknown
Unknown
Plugin
Forums
Plugin
Plugin
Plugin
Plugin
Blogs
Plugin
Plugin
Yes
Plugin
Ticket System
Plugin
Plugin
Plugin
Plugin
Chat
No
Unknown
Unknown
Plugin
Syntax Examples PmWiki TWiki Confluence XWiki
Internal Link
[[page name]]
[[page name | link text]]
[[link text -> page name]]
[[#anchor]]
[[#anchor|link to anchor]]
[[page name #anchor]]
WikiWord autolink
Otherweb.WikiWord
[[Spaced text]]
[[WikiWord][label]]
[Page Title]
[Link Title|Page Title#anchor]
[~username]
[^attachment.doc]
XWiki supports 16+ input syntaxes (e.g. confluence, twiki, docbook, mediawiki, xwiki, markdown, etc), see http://rendering.xwiki.org/xwiki/bin/view/Main/WebHome#HSupportedSyntaxes for details.

The syntax documented below is XWiki Syntax 2.1 (http://platform.xwiki.org/xwiki/bin/view/Main/XWikiSyntax).

[[wiki syntax here>>Space.Page]]
[[Space.Page]]
(Space is optional and is the current space if not specified)
External Link
http://....
[[http://... | link text]]
[[link text -> http://...]]
http://twiki.org/ autolink
[[http://twiki.org/][label]]
[http://www.example.com]
[Link Title|http://www.example.com]
[Shortcut Link|PageName@otherwiki]
[[wiki syntax here>>http://www.xwiki.com]]
http://www.xwiki.com
Headlines
! Level 1
!! Level 2
!!! Level 3
---+ Level 1
---++ Level 2
---+++ Level 3
---++++ Level 4
---+++++ Level 5
---++++++ Level 6
h1. Top Level Heading
h2. Smaller Heading
h6. Smallest Heading
= Headline
== Subheadline
=== Sub-subheadline
==== etc..
Bold Format
'''bold'''
*bold*
*bold*
**bold**
Italics Format
''italic''
_italic_
_italics_
//Italics//
Underline Format
{+underlined+}
<u>underline</u>
+underline+
__underline__
Monospace Format
@@monospace@@
=monospaced text= and
<verbatim>
multi line text
</verbatim>
{{monospace}}
##monospace##
Strikethrough Format
{-strikethrough-}
<strike>strikethrough</strike>
-strikethrough-
--Strike--
Superscript Format
'^superscript^'
<sup>superscript</sup>
^superscript^
^^superscript^^
Subscript Format
'_subscript_'
<sub>subscript</sub>
~subscript~
,,subscript,,
Images
https://foo.bar/foo.jpg
Attach:foo.jpg
Attach:foo.jpg"alt/title text" | Caption
%ATTACHURL%/image.png
http://any.domain/image.png
image:img.png
image:Space.Page@img.png
[[image:img.png||width="25" height="25"]]
image:http://some/url/img.png

Starting with the xwiki/2.1 syntax, also:
image:icon:cancel
Aligning Text
%center% centered text
%right% right aligned
%lfloat% left floating text
%rfloat% right floating text
%rframe% right floating frame
%lframe% left floating frame
| left |   center   |   right |
or HTML
or CSS
(% style="... css here..." %)Text
Text Indentation
-> indented text
--> more indentation
-< hanging text
--< more indentation
<blockquote>
multi line text
</blockquote>
Non-semantic text indentation through styling:

(% style="... css here..." %)multi line text

Quotes:

> This is a quoted text
Bulleted Lists
* Item 1
** Item 1.1
* Item 2
alternatively, indented:
* item 1
* item 1.1
* item 2
* Item 1
* Item 1.1
* Item 2
* one
** one-two
* two
* three
* List
** list
*** list
Numbered Lists
# Item 1
## Item 1.1
# Item 2
alternatively, indented:
# Item 1
# Item 1.1
# Item 2
1. Item 1
a. Item 1.a
1. Item 2
# one
## one-two
# two
# three
1. Item 1
11. Item 2
111. Item 3
1. Item 4
Definition Lists
: term : definition
$ Term: Definition
; term
: definition
Horizontal Rule
----
---
----
----
remove PmWiki remove TWiki remove Confluence remove XWiki