PmWiki vs. TWiki vs. Confluence

General Features PmWiki TWiki Confluence
Version
2.3.33
TWiki-6.1.0
5.2
Last Release Date
2024-04-20 (28 days ago)
2018-07-15 (5 years ago)
2013-08-12 (10 years ago)
Last Update here
2024-04-21 (27 days ago)
2019-07-19 (4 years ago)
2013-08-22 (10 years ago)
Author
Petko Yotov (Original author: Patrick R. Michaud)
Peter Thoeny, TWiki community
Atlassian
URL
Free and Open Source
Yes
Yes
No
License
GPL2+
GPL
Commercial + Free personal/open source project/community use
Programming Language
PHP
Perl, JavaScript
Java
Data Storage
Files
Files, RCS
Database
License Cost/ Fee
0
N/A
starting at US $10 installed (unlimited wikis)
Development status
Mature
Mature
Mature
Intended Audience
All
Large enterprise; small to medium businesses
Enterprise + Technical Teams
Hosting Features PmWiki TWiki Confluence
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
Own Domain
N/A
N/A
Optional
Ads allowed
N/A
N/A
No
System Requirements PmWiki TWiki Confluence
Operating System
Linux, UNIX, Windows, MacOS X, probably others
Linux, Windows, OS-X and other
Windows, Linux and Unix variants
Root Access
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
Other Requirements
none
RCS (optional), cron/scheduler, fgrep, egrep; Plugins may have additional dependencies
Oracle JDK 1.6.0_4+
Datastorage PmWiki TWiki Confluence
Text Files
Yes
Yes
No
MySQL
Plugin
No
Yes
PostgreSQL
No
No
Yes
Oracle
No
No
Yes
SQLite
Plugin
No
No
BerkeleyDB
No
No
No
RCS
Plugin
Yes
No
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
Security/Anti-Spam PmWiki TWiki Confluence
Page Permissions
Yes
Yes
Yes
ACL
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
Host Blocking
Optional
Plugin
No
Mail Encryption
Optional
Yes
Optional
nofollow
Yes
Plugin
Optional
Blacklist
Optional
Plugin
No
CAPTCHA
Plugin
Plugin
Yes
Delayed Indexing
Optional
Plugin
No
Development/Support PmWiki TWiki Confluence
# of Consultants
Preconfigured Hosting
Yes
Yes
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
Stars on GitHub
N/A
N/A
N/A
Common Features PmWiki TWiki Confluence
Preview
Yes
Yes
Yes
Minor Changes
Yes
Yes
Yes
Change Summary
Yes
Yes
Yes
Page History
Yes
Yes
Yes
Page Revisions
Unlimited
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Sitemap
Yes
Yes
Yes
Plugin System
Yes
Yes
Yes
Special Features PmWiki TWiki Confluence
Unicode Support
Yes
Yes
Yes
Right-to-Left Support
Optional
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
Email notification
Optional
Yes
Yes
Comments
Discussion Pages
Threaded
Threaded
Categories
Yes
Yes
Yes
Namespaces
Yes
Yes
Yes
Conflict Handling
Conflict Resolution
Conflict Resolution
Conflict Resolution
Concurrent Editing
Yes
Unknown
Unknown
Search
Full Text
Full Text
Full Text
Wiki Farming
Yes
Optional
Yes
Structured Data
Yes
Yes
Plugin
Links PmWiki TWiki Confluence
CamelCase
Optional
Yes
Yes
Freelinks
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Yes
Yes
Optional
SisterWiki
Plugin
Plugin
No
Image Links
Yes
Yes
Yes
Windows Shares
Yes
Plugin
Yes
Page Redirects
Yes
Plugin
Plugin
Syntax Features PmWiki TWiki Confluence
HTML Tags
Plugin
All
Optional
Math formulas
Plugin
Plugin
Plugin
Tables
simple + complex
simple + complex
simple + complex
CREOLE support
Optional
No
No
Markdown Support
Plugin
No
No
Textile Support
No
Plugin
Yes
BBCode Support
Plugin
No
No
Emoticon Images
Plugin
Yes
Yes
Syntax Highlighting
Optional
Plugin
Yes
Footnotes
Plugin
Plugin
Plugin
Quoting
Plugin
Yes
Yes
Internal Comments
Yes
Yes
Plugin
Custom styles
Yes
Yes
Yes
FAQ Tags
Yes
Yes
Yes
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
Content Includes
Yes
Yes
Yes
Feed Aggregation
Plugin
Yes
Yes
Usability PmWiki TWiki Confluence
Section Editing
Plugin
Plugin
No
Page Templates
Yes
Yes
Yes
Double-Click Edit
Plugin
Plugin
No
Toolbar
Optional
Plugin
Yes
WYSIWYG Editing
Plugin
Yes
Yes
Access Keys
Yes
Yes
Yes
Auto Signature
Yes
Yes
No
Statistics PmWiki TWiki Confluence
Recent Changes
Yes
Yes
Yes
Wanted Pages
Optional
No
Yes
Orphaned Pages
Optional
Plugin
Yes
Most/Least Popular
No
Yes
Yes
Recent Visitors
Plugin
Plugin
No
Analysis
Plugin
Yes
Yes
Output PmWiki TWiki Confluence
Printer Friendly
Print View
Print View
Print CSS
Mobile Friendly
Yes
Plugin
Plugin
Themes & Skins
Yes
Yes
Yes
RSS Feeds
Optional
Yes
Yes
ATOM Feeds
Optional
Yes
Yes
Abbreviations
Plugin
Plugin
No
Auto-TOC
Optional
Yes
Yes
Raw Export
Yes
Yes
Yes
HTML Export
Plugin
Yes
Yes
XML export
Plugin
Plugin
Yes
PDF Export
Plugin
Plugin
Yes
Office Export
Plugin
Unknown
Unknown
Media and Files PmWiki TWiki Confluence
File Attachments
Optional
Yes
Yes
Media Revisions
Optional
Yes
Yes
Embedded Flash
Plugin
Plugin
Yes
Embedded Video
Plugin
Plugin
Yes
Image Editing
Plugin
Plugin
Plugin
SVG Editing
No
Plugin
Plugin
MindMap Editing
Plugin
Plugin
Plugin
Media Search
Filenames only
Contents
Contents
Extras PmWiki TWiki Confluence
Calendar
Plugin
Plugin
Plugin
Image Galleries
Plugin
Plugin
Yes
Presentations
Plugin
Unknown
Unknown
Forums
Plugin
Plugin
Plugin
Blogs
Plugin
Plugin
Yes
Ticket System
Plugin
Plugin
Plugin
Chat
No
Unknown
Unknown
Syntax Examples PmWiki TWiki Confluence
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]
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]
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
Bold Format
'''bold'''
*bold*
*bold*
Italics Format
''italic''
_italic_
_italics_
Underline Format
{+underlined+}
<u>underline</u>
+underline+
Monospace Format
@@monospace@@
=monospaced text= and
<verbatim>
multi line text
</verbatim>
{{monospace}}
Strikethrough Format
{-strikethrough-}
<strike>strikethrough</strike>
-strikethrough-
Superscript Format
'^superscript^'
<sup>superscript</sup>
^superscript^
Subscript Format
'_subscript_'
<sub>subscript</sub>
~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
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
Text Indentation
-> indented text
--> more indentation
-< hanging text
--< more indentation
<blockquote>
multi line text
</blockquote>
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
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
Definition Lists
: term : definition
$ Term: Definition
Horizontal Rule
----
---
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remove PmWiki remove TWiki remove Confluence