PmWiki vs. TWiki vs. Zim

General Features PmWiki TWiki Zim
Version
2.5.4
TWiki-6.1.0
0.56
Last Release Date
2025-12-06 (11 days ago)
2018-07-16 (7 years ago)
2012-04-02 (13 years ago)
Last Update here
2025-12-06 (11 days ago)
2019-07-19 (6 years ago)
2012-07-16 (13 years ago)
Author
Petko Yotov (Original author: Patrick R. Michaud)
Peter Thoeny, TWiki community
Jaap Karssenberg
URL
Free and Open Source
Yes
Yes
Yes
License
GPL2+
GPL
GPL
Programming Language
PHP
Perl, JavaScript
Python
Data Storage
Files
Files, RCS
Files, RCS
License Cost/ Fee
0
N/A
0
Development status
Mature
Mature
Mature
Intended Audience
All
Large enterprise; small to medium businesses
Private users, small teams
System Requirements PmWiki TWiki Zim
Operating System
Linux, UNIX, Windows, MacOS X, probably others
Linux, Windows, OS-X and other
Linux, Windows, OSX
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
None
Other Requirements
none
RCS (optional), cron/scheduler, fgrep, egrep; Plugins may have additional dependencies
Desktop environment with Gtk toolkit
Datastorage PmWiki TWiki Zim
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
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
Text Files with index in SQLite
Security/Anti-Spam PmWiki TWiki Zim
Page Permissions
Yes
Yes
No
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
File permissions
Host Blocking
Optional
Plugin
No
Mail Encryption
Optional
Yes
No
nofollow
Yes
Plugin
No
Blacklist
Optional
Plugin
No
CAPTCHA
Plugin
Plugin
No
Delayed Indexing
Optional
Plugin
No
Development/Support PmWiki TWiki Zim
# 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 Zim
Preview
Yes
Yes
No
Minor Changes
Yes
Yes
No
Change Summary
Yes
Yes
No
Page History
Yes
Yes
Plugin
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 Zim
Unicode Support
Yes
Yes
Yes
Right-to-Left Support
Optional
No
Yes
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
27
Catalan, Czech, Danish, German, Greek, English, Spanish, Estonian, French, Galician, Hebrew, Hungarian, Italian, Japanese, Dutch, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Serbian, Swedish, Turkish, Ukrainian, Chinese, Chinese Traditional
Email notification
Optional
Yes
No
Comments
Discussion Pages
Threaded
No
Categories
Yes
Yes
Plugin
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
No
Links PmWiki TWiki Zim
CamelCase
Optional
Yes
Yes
Freelinks
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Yes
Yes
Yes
SisterWiki
Plugin
Plugin
No
Image Links
Yes
Yes
Yes
Windows Shares
Yes
Plugin
Yes
Page Redirects
Yes
Plugin
No
Syntax Features PmWiki TWiki Zim
HTML Tags
Plugin
All
None
Math formulas
Plugin
Plugin
Plugin
Tables
simple + complex
simple + complex
none
CREOLE support
Optional
No
No
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
No
Feed Aggregation
Plugin
Yes
No
Usability PmWiki TWiki Zim
Section Editing
Plugin
Plugin
Yes
Page Templates
Yes
Yes
Yes
Double-Click Edit
Plugin
Plugin
Yes
Toolbar
Optional
Plugin
Yes
WYSIWYG Editing
Plugin
Yes
Yes
Access Keys
Yes
Yes
Yes
Auto Signature
Yes
Yes
No
Statistics PmWiki TWiki Zim
Recent Changes
Yes
Yes
No
Wanted Pages
Optional
No
Yes
Orphaned Pages
Optional
Plugin
No
Most/Least Popular
No
Yes
No
Recent Visitors
Plugin
Plugin
No
Analysis
Plugin
Yes
No
Output PmWiki TWiki Zim
Printer Friendly
Print View
Print View
Print View
Mobile Friendly
Yes
Plugin
No
Themes & Skins
Yes
Yes
Optional
RSS Feeds
Optional
Yes
No
ATOM Feeds
Optional
Yes
No
Abbreviations
Plugin
Plugin
No
Auto-TOC
Optional
Yes
Optional
Raw Export
Yes
Yes
Yes
HTML Export
Plugin
Yes
Yes
XML export
Plugin
Plugin
No
PDF Export
Plugin
Plugin
No
Office Export
Plugin
Unknown
Unknown
Media and Files PmWiki TWiki Zim
File Attachments
Optional
Yes
Yes
Media Revisions
Optional
Yes
No
Embedded Flash
Plugin
Plugin
No
Embedded Video
Plugin
Plugin
No
Image Editing
Plugin
Plugin
No
SVG Editing
Plugin
Plugin
No
MindMap Editing
Plugin
Plugin
No
Media Search
Filenames only
Contents
No
Extras PmWiki TWiki Zim
Calendar
Plugin
Plugin
Yes
Image Galleries
Plugin
Plugin
No
Presentations
Plugin
Unknown
Unknown
Forums
Plugin
Plugin
No
Blogs
Plugin
Plugin
Optional
Ticket System
Plugin
Plugin
No
Chat
No
Unknown
Unknown
Syntax Examples PmWiki TWiki Zim
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]]
CamelCase [[foobar:subpage]] +subpage 
External Link
http://....
[[http://... | link text]]
[[link text -> http://...]]
http://twiki.org/ autolink
[[http://twiki.org/][label]]
wp?Wiki_Engine http://wikimatrix.org 
ftp://somehost/share
\\host\share\..
Headlines
! Level 1
!! Level 2
!!! Level 3
---+ Level 1
---++ Level 2
---+++ Level 3
---++++ Level 4
---+++++ Level 5
---++++++ Level 6
=== Heading ===
Bold Format
'''bold'''
*bold*
**bold**
Italics Format
''italic''
_italic_
//italic//
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>
~~strike~~
Superscript Format
'^superscript^'
<sup>superscript</sup>
^{sup}
Subscript Format
'_subscript_'
<sub>subscript</sub>
_{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
{{./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
not implemented
Text Indentation
-> indented text
--> more indentation
-< hanging text
--< more indentation
<blockquote>
multi line text
</blockquote>
indent with tabs
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
* List item
* sub items
* with indent
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
1. List item
a. with sub items
b. ...
Definition Lists
: term : definition
$ Term: Definition
not implemented
Horizontal Rule
----
---
not implemented
remove PmWiki remove TWiki remove Zim