PmWiki vs. TWiki vs. UseMod

General Features PmWiki TWiki UseMod
Version
2.6.0
TWiki-6.1.0
1.2.2
Last Release Date
2026-05-16 (1 month ago)
2018-07-16 (7 years ago)
2023-11-10 (2 years ago)
Last Update here
2026-05-16 (1 month ago)
2019-07-19 (6 years ago)
2025-02-25 (1 year ago)
Author
Petko Yotov (Original author: Patrick R. Michaud)
Peter Thoeny, TWiki community
Clifford Adams
URL
Free and Open Source
Yes
Yes
Yes
License
GPL2+
GPL
GPL
Programming Language
PHP
Perl, JavaScript
Perl
Data Storage
Files
Files, RCS
Files
License Cost/ Fee
0
N/A
0
Development status
Mature
Mature
Mature
Intended Audience
All
Large enterprise; small to medium businesses
System Requirements PmWiki TWiki UseMod
Operating System
Linux, UNIX, Windows, MacOS X, probably others
Linux, Windows, OS-X and other
Linux, Windows, MacOS X
Root Access
No
No
No
Webserver
Apache, IIS, anything with PHP support. Can also be run with PHP's built-in webserver.
Almost any webserver, typically Apache and Ngnix
Apache, probably anything with CGI support
Other Requirements
none
RCS (optional), cron/scheduler, fgrep, egrep; Plugins may have additional dependencies
Datastorage PmWiki TWiki UseMod
Text Files
Yes
Yes
Yes
MySQL
Plugin
No
No
PostgreSQL
No
No
No
Oracle
No
No
No
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
No
Security/Anti-Spam PmWiki TWiki UseMod
Page Permissions
Yes
Yes
Yes
ACL
Yes
Yes
No
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
Host Blocking
Optional
Plugin
Yes
Mail Encryption
Optional
Yes
Unknown
nofollow
Yes
Plugin
Patch
Blacklist
Optional
Plugin
Patch
CAPTCHA
Plugin
Plugin
No
Delayed Indexing
Optional
Plugin
No
Development/Support PmWiki TWiki UseMod
# of Consultants
Preconfigured Hosting
Yes
Yes
No
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
Stars on GitHub
N/A
N/A
N/A
Common Features PmWiki TWiki UseMod
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
No
Special Features PmWiki TWiki UseMod
Unicode Support
Yes
Yes
Yes
Right-to-Left Support
Optional
No
Unknown
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
0
Email notification
Optional
Yes
Unknown
Comments
Discussion Pages
Threaded
No
Categories
Yes
Yes
Unknown
Namespaces
Yes
Yes
Unknown
Conflict Handling
Conflict Resolution
Conflict Resolution
Conflict Detection
Concurrent Editing
Yes
Unknown
No
Search
Full Text
Full Text
Full Text
Wiki Farming
Yes
Optional
Unknown
Structured Data
Yes
Yes
Unknown
Links PmWiki TWiki UseMod
CamelCase
Optional
Yes
Optional
Freelinks
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Yes
Yes
Yes
SisterWiki
Plugin
Plugin
Yes
Image Links
Yes
Yes
Yes
Windows Shares
Yes
Plugin
No
Page Redirects
Yes
Plugin
Yes
Syntax Features PmWiki TWiki UseMod
HTML Tags
Plugin
All
Some
Math formulas
Plugin
Plugin
No
Tables
simple + complex
simple + complex
simple
CREOLE support
Optional
No
Unknown
Markdown Support
Plugin
No
No
Textile Support
No
Plugin
No
BBCode Support
Plugin
No
No
Emoticon Images
Plugin
Yes
No
Syntax Highlighting
Optional
Plugin
No
Footnotes
Plugin
Plugin
No
Quoting
Plugin
Yes
No
Internal Comments
Yes
Yes
No
Custom styles
Yes
Yes
No
FAQ Tags
Yes
Yes
No
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
None
Content Includes
Yes
Yes
Unknown
Feed Aggregation
Plugin
Yes
Unknown
Usability PmWiki TWiki UseMod
Section Editing
Plugin
Plugin
No
Page Templates
Yes
Yes
No
Double-Click Edit
Plugin
Plugin
No
Toolbar
Optional
Plugin
No
WYSIWYG Editing
Plugin
Yes
No
Access Keys
Yes
Yes
Unknown
Auto Signature
Yes
Yes
No
Statistics PmWiki TWiki UseMod
Recent Changes
Yes
Yes
Yes
Wanted Pages
Optional
No
Patch
Orphaned Pages
Optional
Plugin
Patch
Most/Least Popular
No
Yes
No
Recent Visitors
Plugin
Plugin
No
Analysis
Plugin
Yes
No
Output PmWiki TWiki UseMod
Printer Friendly
Print View
Print View
No
Mobile Friendly
Yes
Plugin
Unknown
Themes & Skins
Yes
Yes
No
RSS Feeds
Optional
Yes
Yes
ATOM Feeds
Optional
Yes
No
Abbreviations
Plugin
Plugin
No
Auto-TOC
Optional
Yes
Yes
Raw Export
Yes
Yes
No
HTML Export
Plugin
Yes
No
XML export
Plugin
Plugin
No
PDF Export
Plugin
Plugin
No
Office Export
Plugin
Unknown
Unknown
Media and Files PmWiki TWiki UseMod
File Attachments
Optional
Yes
Optional
Media Revisions
Optional
Yes
No
Embedded Flash
Plugin
Plugin
No
Embedded Video
Plugin
Plugin
No
Image Editing
Plugin
Plugin
Unknown
SVG Editing
Plugin
Plugin
Unknown
MindMap Editing
Plugin
Plugin
Unknown
Media Search
Filenames only
Contents
No
Extras PmWiki TWiki UseMod
Calendar
Plugin
Plugin
Unknown
Image Galleries
Plugin
Plugin
Unknown
Presentations
Plugin
Unknown
Unknown
Forums
Plugin
Plugin
Unknown
Blogs
Plugin
Plugin
Unknown
Ticket System
Plugin
Plugin
Unknown
Chat
No
Unknown
Unknown
Syntax Examples PmWiki TWiki UseMod
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]]
External Link
http://....
[[http://... | link text]]
[[link text -> http://...]]
http://twiki.org/ autolink
[[http://twiki.org/][label]]
Headlines
! Level 1
!!#anchor Level 2
!!! Level 3
---+ Level 1
---++ Level 2
---+++ Level 3
---++++ Level 4
---+++++ Level 5
---++++++ Level 6
= Level 1 =
== Level 2 ==
=== Level 3 ===
==== Level 4 ====
===== Level 5 =====
====== Level 6 ======
Bold Format
'''bold'''
*bold*
'''bold'''
Italics Format
''italic''
_italic_
''italic''
Underline Format
{+underlined+}
<u>underline</u>
<u>underline</u>
Monospace Format
@@monospace@@
=monospaced text= and
<verbatim>
multi line text
</verbatim>
<tt>for monospace text</tt>
Strikethrough Format
{-strikethrough-}
<strike>strikethrough</strike>
N/A
Superscript Format
'^superscript^'
<sup>superscript</sup>
<sup>superscript</sup>
Subscript Format
'_subscript_'
<sub>subscript</sub>
<sub>subscript</sub>
Images
https://foo.bar/foo.jpg
Attach:foo.jpg
Attach:foo.jpg"alt/title text" | Caption
%ATTACHURL%/image.png
http://any.domain/image.png
http://url.com/pic.gif
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
N/A
Text Indentation
-> indented text
--> more indentation
-< hanging text
--< more indentation
<blockquote>
multi line text
</blockquote>
: indented
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
* Item 1
** Item 1.1
* Item 2
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
# Item 1
## Item 1.1
# Item 2
Definition Lists
: term : definition
$ Term: Definition
;Term:Definition
Horizontal Rule
----
---
----
remove PmWiki remove TWiki remove UseMod