WackoWiki vs. Zim vs. Wikidot vs. PmWiki

General Features WackoWiki Zim Wikidot PmWiki
Version
6.2.1
0.56
2.5.8
Last Release Date
2026-03-03 (9 days ago)
2012-04-02 (13 years ago)
2026-03-09 (3 days ago)
Last Update here
2026-03-03 (9 days ago)
2012-07-16 (13 years ago)
2009-12-09 (16 years ago)
2026-03-09 (3 days ago)
Author
WackoWiki Team
Jaap Karssenberg
Michal Frackowiak
Petko Yotov (Original author: Patrick R. Michaud)
URL
Free and Open Source
Yes
Yes
Yes
Yes
License
BSD
GPL
AGPLv3
GPL2+
Programming Language
PHP
Python
PHP
Data Storage
Database
Files, RCS
Database
Files
License Cost/ Fee
0
0
Free / Paid Accounts (starts from $5 per month)
0
Development status
Mature
Mature
Mature
Mature
Intended Audience
Advanced End Users, Developers, End Users/Desktop
Private users, small teams
companies, private users, social groups and communities, software developers, tech geeks
All
Hosting Features WackoWiki Zim Wikidot PmWiki
Storage Quota
N/A
N/A
1500MB for free users, more for Pro accounts
N/A
Bandwidth Quota
N/A
N/A
no limit
N/A
Other Limits
N/A
N/A
max uploaded file size limit
N/A
Topic Restrictions
N/A
N/A
by Terms Of Service
N/A
Corporate Branding
N/A
N/A
Yes
N/A
Own Domain
N/A
N/A
Yes
N/A
Ads allowed
N/A
N/A
Yes
N/A
System Requirements WackoWiki Zim Wikidot PmWiki
Operating System
OS Independent
Linux, Windows, OSX
Linux, UNIX, Windows, MacOS X, probably others
Root Access
No
No
No
No
Webserver
run with the appserver/webserver of your choice
None
Apache, IIS, anything with PHP support. Can also be run with PHP's built-in webserver.
Other Requirements
mod_rewrite (optional)
Desktop environment with Gtk toolkit
none
Datastorage WackoWiki Zim Wikidot PmWiki
Text Files
No
Yes
Unknown
Yes
MySQL
Yes
No
Unknown
Plugin
PostgreSQL
No
No
Yes
No
Oracle
No
No
Unknown
No
SQLite
Yes
No
Unknown
Plugin
BerkeleyDB
No
No
Unknown
No
RCS
No
Plugin
Unknown
Plugin
Other
MariaDB
Text Files with index in SQLite
Compressed, XML and/or ephemeral files (modules). Can provide custom data backends.
Security/Anti-Spam WackoWiki Zim Wikidot PmWiki
Page Permissions
Yes
No
Yes
Yes
ACL
Yes
No
Yes
Yes
Authentication Backends
LDAP (patch), ActiveDirectory
File permissions
Internal: per page, per group, per user, per user group. External: .htpasswd, LDAP, Active Directory. Plugins: Mailman, forums w/MySQL, oAuth, custom possible.
Host Blocking
Optional
No
Yes
Optional
Mail Encryption
Optional
No
No
Optional
nofollow
Optional
No
Yes
Yes
Blacklist
Yes
No
Yes
Optional
CAPTCHA
Yes
No
Yes
Plugin
Delayed Indexing
No
No
Yes
Optional
Development/Support WackoWiki Zim Wikidot PmWiki
# of Consultants
Preconfigured Hosting
Yes
No
Yes
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
Stars on GitHub
56 ⭐
N/A
N/A
N/A
Common Features WackoWiki Zim Wikidot PmWiki
Preview
Yes
No
Yes
Yes
Minor Changes
Yes
No
Yes
Yes
Change Summary
Yes
No
Yes
Yes
Page History
Yes
Plugin
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
No
Yes
Special Features WackoWiki Zim Wikidot PmWiki
Unicode Support
Yes
Yes
Yes
Yes
Right-to-Left Support
Yes
Yes
Yes
Optional
Interface Languages
30
Arabic, Bulgarian, Czech, Danish, German, Greek, English, Spanish, Estonian, Persian, Finnish, French, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Dutch, Norwegian, Polish, Portuguese, Brazilian Portuguese, Romanian, Russian, Swedish, Tamil, 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
2
English, Polish
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
Email notification
Yes
No
Yes
Optional
Comments
Flat
No
Threaded
Discussion Pages
Categories
Yes
Plugin
Yes
Yes
Namespaces
Yes
Yes
Yes
Yes
Conflict Handling
Page Locking
Conflict Resolution
Page Locking
Conflict Resolution
Concurrent Editing
No
Unknown
Unknown
Yes
Search
Full Text
Full Text
Full Text
Full Text
Wiki Farming
Patch
Yes
Yes
Yes
Structured Data
Plugin
No
Yes
Yes
Links WackoWiki Zim Wikidot PmWiki
CamelCase
Optional
Yes
No
Optional
Freelinks
Yes
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
Yes
InterWiki
Yes
Yes
Yes
Yes
SisterWiki
No
No
No
Plugin
Image Links
Yes
Yes
Yes
Yes
Windows Shares
Yes
Yes
No
Yes
Page Redirects
Yes
No
Yes
Yes
Syntax Features WackoWiki Zim Wikidot PmWiki
HTML Tags
All
None
None
Plugin
Math formulas
Plugin
Plugin
Yes
Plugin
Tables
simple + complex
none
simple + complex
simple + complex
CREOLE support
No
No
No
Optional
Markdown Support
No
No
No
Plugin
Textile Support
No
No
No
No
BBCode Support
Patch
No
No
Plugin
Emoticon Images
Yes
No
No
Plugin
Syntax Highlighting
Yes
No
Yes
Optional
Footnotes
Yes
No
Yes
Plugin
Quoting
Yes
No
Yes
Plugin
Internal Comments
Yes
No
Yes
Yes
Custom styles
Yes
No
Yes
Yes
FAQ Tags
No
No
No
Yes
Scripting
actions (PHP)
None
CSS styles, embeddable JavaScript, reporting language
MarkupExpressions (core, many add-ons). PageLists with templates (core structured data scripting). WikiSh (plugin), Data forms (optional)
Content Includes
Yes
No
Yes
Yes
Feed Aggregation
Yes
No
Yes
Plugin
Usability WackoWiki Zim Wikidot PmWiki
Section Editing
Yes
Yes
Yes
Plugin
Page Templates
Yes
Yes
Yes
Yes
Double-Click Edit
Yes
Yes
No
Plugin
Toolbar
Yes
Yes
Yes
Optional
WYSIWYG Editing
Plugin
Yes
No
Plugin
Access Keys
Yes
Yes
Yes
Yes
Auto Signature
Yes
No
Yes
Yes
Statistics WackoWiki Zim Wikidot PmWiki
Recent Changes
Yes
No
Yes
Yes
Wanted Pages
Yes
Yes
Yes
Optional
Orphaned Pages
Yes
No
Yes
Optional
Most/Least Popular
Yes
No
No
No
Recent Visitors
Yes
No
No
Plugin
Analysis
Plugin
No
Yes
Plugin
Output WackoWiki Zim Wikidot PmWiki
Printer Friendly
Print View
Print View
Print View
Print View
Mobile Friendly
Yes
No
Optional
Yes
Themes & Skins
Yes
Optional
Yes
Yes
RSS Feeds
Yes
No
Yes
Optional
ATOM Feeds
No
No
No
Optional
Abbreviations
Patch
No
No
Plugin
Auto-TOC
Yes
Optional
Yes
Optional
Raw Export
Yes
Yes
Yes
Yes
HTML Export
Yes
Yes
No
Plugin
XML export
Yes
No
No
Plugin
PDF Export
Patch
No
No
Plugin
Office Export
Patch
Unknown
Unknown
Plugin
Media and Files WackoWiki Zim Wikidot PmWiki
File Attachments
Yes
Yes
Yes
Optional
Media Revisions
No
No
No
Optional
Embedded Flash
Yes
No
Yes
Plugin
Embedded Video
Yes
No
Yes
Plugin
Image Editing
No
No
No
Plugin
SVG Editing
No
No
No
Plugin
MindMap Editing
Plugin
No
No
Plugin
Media Search
Contents
No
No
Filenames only
Extras WackoWiki Zim Wikidot PmWiki
Calendar
Plugin
Yes
Optional
Plugin
Image Galleries
Plugin
No
Yes
Plugin
Presentations
Plugin
Unknown
Unknown
Plugin
Forums
Optional
No
Yes
Plugin
Blogs
Optional
Optional
Yes
Plugin
Ticket System
No
No
Yes
Plugin
Chat
Patch
Unknown
Unknown
No
Syntax Examples WackoWiki Zim Wikidot PmWiki
Internal Link
[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase
CamelCase [[foobar:subpage]] +subpage 
[[[page-name]]] or
[[[page-name|anchor]]]
[[page name]]
[[page name | link text]]
[[link text -> page name]]
[[#anchor]]
[[#anchor|link to anchor]]
[[page name #anchor]]
External Link
https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]
wp?Wiki_Engine http://wikimatrix.org 
ftp://somehost/share
\\host\share\..
http://www.wikimatrix.org or 
[http://www.wikimatrix.org WikiMatrix]
http://....
[[http://... | link text]]
[[link text -> http://...]]
Headlines
== Level 1 ==
=== Level 2 ===
==== Level 3 ====
===== Level 4 =====
====== Level 5 ======
=== Heading ===
+++ headline level 3
! Level 1
!!#anchor Level 2
!!! Level 3
Bold Format
**bold**
**bold**
**bold text**
'''bold'''
Italics Format
//italics//
//italic//
//italic text//
''italic''
Underline Format
__underline__
__underline__
__underlined text__
{+underlined+}
Monospace Format
##monospace##
``monospace``
{{monospaced text}}
@@monospace@@
Strikethrough Format
--strikethrough--
~~strike~~
--strikethrough text--
{-strikethrough-}
Superscript Format
^^superscript^^
^{sup}
^^superscript^^
'^superscript^'
Subscript Format
,,subscript,,
_{sub}
,,subscript,,
'_subscript_'
Images
((image.png))
file:image.png
https://example.com/image.png
{{./image.png}}
[[image src="..."]]
https://foo.bar/foo.jpg
Attach:foo.jpg
Attach:foo.jpg"alt/title text" | Caption
Aligning Text
{html}<div align="right">{html}

%%(wacko wrapper="text" wrapper_align="center")
content%%
not implemented
= Centered line
%center% centered text
%right% right aligned
%lfloat% left floating text
%rfloat% right floating text
%rframe% right floating frame
%lframe% left floating frame
Text Indentation
one
two
indent with tabs
> First level of indentation
>> Second level of indentation.
-> indented text
--> more indentation
-< hanging text
--< more indentation
Bulleted Lists
*one
**One-two
*two
*three
* List item
* sub items
* with indent
* element 1
* element 2
* Item 1
** Item 1.1
* Item 2
alternatively, indented:
* item 1
* item 1.1
* item 2
Numbered Lists
1. numbered List
1. numbered List-2
2.#8 numbered List, with break


1. List item
a. with sub items
b. ...
# element 1
# element 1
# Item 1
## Item 1.1
# Item 2
alternatively, indented:
# Item 1
# Item 1.1
# Item 2
Definition Lists
{html}<dl>
<dt>Coffee</dt>
<dd>Black hot drink</dd>
<dt>Milk</dt>
<dd>White cold drink</dd>
</dl>{html}
not implemented
: item : description
: term : definition
Horizontal Rule
----
not implemented
----
----
remove WackoWiki remove Zim remove Wikidot remove PmWiki