ProntoWiki vs. WackoWiki vs. Confluence vs. Instiki vs. Zwiki

General Features ProntoWiki WackoWiki Confluence Instiki Zwiki
Version
1.0.1
6.2.1
5.2
0.30.0
0.61
Last Release Date
2026-04-30 (today)
2026-03-03 (1 month ago)
2013-08-13 (12 years ago)
2019-03-01 (7 years ago)
2008-10-28 (17 years ago)
Last Update here
2006-08-23 (19 years ago)
2026-04-25 (5 days ago)
2013-08-22 (12 years ago)
2019-03-04 (7 years ago)
2008-10-30 (17 years ago)
Author
Clay Alberty
WackoWiki Team
Atlassian
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
Simon Michael & the Zwiki dev team
URL
Free and Open Source
Yes
Yes
No
Yes
Yes
License
BSD
BSD
Commercial + Free personal/open source project/community use
Ruby's
GPLv2
Programming Language
C#
PHP
Java
Ruby on Rails
Python
Data Storage
Database
Database
Database
Database
Database
License Cost/ Fee
Free
0
starting at US $10 installed (unlimited wikis)
0
0
Development status
Mature
Mature
Mature
Mature
Mature
Intended Audience
Advanced End Users, Developers, End Users/Desktop
Enterprise + Technical Teams
general, education
anyone able to install or get access to a zope server
Hosting Features ProntoWiki WackoWiki Confluence Instiki Zwiki
Storage Quota
N/A
N/A
Unlimited
N/A
N/A
Bandwidth Quota
N/A
N/A
N/A
N/A
Other Limits
N/A
N/A
No
N/A
N/A
Topic Restrictions
N/A
N/A
No
N/A
N/A
Corporate Branding
N/A
N/A
Yes
N/A
N/A
Own Domain
N/A
N/A
Optional
N/A
N/A
Ads allowed
N/A
N/A
No
N/A
N/A
System Requirements ProntoWiki WackoWiki Confluence Instiki Zwiki
Operating System
Windows
OS Independent
Windows, Linux and Unix variants
UNIX, Windows, MacOS X
any
Root Access
No
No
No
No
No
Webserver
IIS 5+
run with the appserver/webserver of your choice
Apache Tomcat
Thin (included), or Apache/NGinx (via Passenger)
Zope
Other Requirements
.NET framework v2.0 or higher
mod_rewrite (optional)
Oracle JDK 1.6.0_4+
Ruby 2.0-2.6
Datastorage ProntoWiki WackoWiki Confluence Instiki Zwiki
Text Files
Unknown
No
No
No
Plugin
MySQL
Unknown
Yes
Yes
Yes
Plugin
PostgreSQL
Unknown
No
Yes
Yes
Plugin
Oracle
Unknown
No
Yes
Plugin
Plugin
SQLite
Unknown
Yes
No
Yes
Unknown
BerkeleyDB
Unknown
No
No
No
Unknown
RCS
Unknown
No
No
No
Unknown
Other
SQLExpress or SQL 2000 or SQL 2005
MariaDB
Any Rails-compatible back-end datastore can be used.
ZODB (zope object database)
Security/Anti-Spam ProntoWiki WackoWiki Confluence Instiki Zwiki
Page Permissions
Yes
Yes
Yes
Yes
Yes
ACL
No
Yes
Yes
No
Yes
Authentication Backends
.NET Membership platform
LDAP (patch), ActiveDirectory
LDAP, NTLM, Siteminder, CAS and more
any supported by Zope authentication plugins
Host Blocking
No
Optional
No
Yes
Patch
Mail Encryption
No
Optional
Optional
Unknown
Yes
nofollow
No
Optional
Optional
Unknown
Unknown
Blacklist
No
Yes
No
Yes
Yes
CAPTCHA
No
Yes
Yes
Unknown
No
Delayed Indexing
No
No
No
Unknown
Patch
Development/Support ProntoWiki WackoWiki Confluence Instiki Zwiki
# of Consultants
Preconfigured Hosting
No
Yes
Yes
No
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
#zwiki on freenode
Stars on GitHub
N/A
55 ⭐
N/A
506 ⭐
N/A
Common Features ProntoWiki WackoWiki Confluence Instiki Zwiki
Preview
Yes
Yes
Yes
No
Yes
Minor Changes
No
Yes
Yes
Yes
No
Change Summary
No
Yes
Yes
No
Yes
Page History
Yes
Yes
Yes
Yes
Yes
Page Revisions
Unlimited
Unlimited
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Between all
Between all
Sitemap
Unknown
Yes
Yes
Yes
Yes
Plugin System
No
Yes
Yes
No
Yes
Special Features ProntoWiki WackoWiki Confluence Instiki Zwiki
Unicode Support
No
Yes
Yes
Yes
Yes
Right-to-Left Support
Unknown
Yes
No
Yes
Optional
Interface Languages
1
English
34
Arabic, Bulgarian, Czech, Danish, German, Greek, English, Spanish, Estonian, Persian, Finnish, French, Hindi, Croatian, Hungarian, Indonesian, Italian, Japanese, Korean, Dutch, Norwegian, Polish, Portuguese, Brazilian Portuguese, Romanian, Russian, Swedish, Tamil, Thai, Turkish, Ukrainian, Vietnamese, Chinese, Chinese Traditional
15
Danish, German, Greek, English, Spanish, Finnish, French, Hungarian, Japanese, Korean, Portuguese, Russian, Swahili, Chinese, Chinese Traditional
1
English
0
Email notification
No
Yes
Yes
No
Yes
Comments
No
Flat
Threaded
No
Flat
Categories
Optional
Yes
Yes
Yes
No
Namespaces
No
Yes
Yes
No
No
Conflict Handling
Page Locking
Conflict Resolution
Page Locking
Conflict Detection
Concurrent Editing
Unknown
No
Unknown
Unknown
Unknown
Search
Full Text
Full Text
Full Text
Full Text
Full Text
Wiki Farming
Unknown
Patch
Yes
Yes
Unknown
Structured Data
Unknown
Plugin
Plugin
No
Unknown
Links ProntoWiki WackoWiki Confluence Instiki Zwiki
CamelCase
Optional
Optional
Yes
Optional
Optional
Freelinks
Yes
Yes
Yes
Yes
Optional
Backlinks
No
Yes
Yes
Yes
Yes
InterWiki
No
Yes
Optional
Yes
Yes
SisterWiki
No
No
No
No
No
Image Links
Optional
Yes
Yes
Yes
Yes
Windows Shares
No
Yes
Yes
No
Unknown
Page Redirects
Unknown
Yes
Plugin
Yes
Unknown
Syntax Features ProntoWiki WackoWiki Confluence Instiki Zwiki
HTML Tags
Some
All
Optional
All
Optional
Math formulas
No
Plugin
Plugin
Yes
Plugin
Tables
none
simple + complex
simple + complex
simple + complex
simple + complex
CREOLE support
Unknown
No
No
No
No
Markdown Support
Unknown
No
No
Yes
No
Textile Support
Unknown
No
Yes
Yes
No
BBCode Support
Unknown
Patch
No
No
No
Emoticon Images
No
Yes
Yes
No
Patch
Syntax Highlighting
No
Yes
Yes
Yes
No
Footnotes
Optional
Yes
Plugin
Yes
Yes
Quoting
Optional
Yes
Yes
Yes
Yes
Internal Comments
No
Yes
Plugin
Yes
Yes
Custom styles
Yes
Yes
Yes
Yes
Yes
FAQ Tags
No
No
Yes
No
Optional
Scripting
actions (PHP)
Macros, plugins, widgets, JavaScript and more
None
DTML
Content Includes
No
Yes
Yes
Yes
Yes
Feed Aggregation
No
Yes
Yes
No
Plugin
Usability ProntoWiki WackoWiki Confluence Instiki Zwiki
Section Editing
No
Yes
No
No
No
Page Templates
No
Yes
Yes
No
No
Double-Click Edit
No
Yes
No
No
Patch
Toolbar
Yes
Yes
Yes
No
No
WYSIWYG Editing
No
Plugin
Yes
No
Plugin
Access Keys
No
Yes
Yes
Yes
Yes
Auto Signature
No
Yes
No
Yes
Yes
Statistics ProntoWiki WackoWiki Confluence Instiki Zwiki
Recent Changes
Unknown
Yes
Yes
Yes
Yes
Wanted Pages
No
Yes
Yes
Yes
No
Orphaned Pages
No
Yes
Yes
Yes
Optional
Most/Least Popular
Optional
Yes
Yes
No
Optional
Recent Visitors
No
Yes
No
No
Plugin
Analysis
No
Plugin
Yes
No
No
Output ProntoWiki WackoWiki Confluence Instiki Zwiki
Printer Friendly
Print View
Print CSS
Print View
Print View
Mobile Friendly
Unknown
Yes
Plugin
Yes
Unknown
Themes & Skins
Yes
Yes
Yes
No
Yes
RSS Feeds
No
Yes
Yes
No
Yes
ATOM Feeds
No
No
Yes
Yes
No
Abbreviations
No
Patch
No
Yes
Unknown
Auto-TOC
No
Yes
Yes
Yes
Plugin
Raw Export
No
Yes
Yes
Yes
Yes
HTML Export
No
Yes
Yes
Yes
Yes
XML export
No
Yes
Yes
No
Yes
PDF Export
No
Patch
Yes
No
Patch
Office Export
Unknown
Patch
Unknown
Unknown
Unknown
Media and Files ProntoWiki WackoWiki Confluence Instiki Zwiki
File Attachments
Yes
Yes
Yes
Yes
Yes
Media Revisions
No
No
Yes
No
No
Embedded Flash
Unknown
Yes
Yes
No
Yes
Embedded Video
Unknown
Yes
Yes
Yes
Yes
Image Editing
No
No
Plugin
No
No
SVG Editing
No
No
Plugin
Yes
No
MindMap Editing
No
Plugin
Plugin
No
No
Media Search
Contents
Contents
No
Filenames only
Extras ProntoWiki WackoWiki Confluence Instiki Zwiki
Calendar
Unknown
Plugin
Plugin
No
Unknown
Image Galleries
Unknown
Plugin
Yes
No
Unknown
Presentations
Unknown
Plugin
Unknown
Unknown
Unknown
Forums
Unknown
Optional
Plugin
No
Unknown
Blogs
Unknown
Optional
Yes
No
Unknown
Ticket System
Unknown
No
Plugin
No
Unknown
Chat
Unknown
Patch
Unknown
Unknown
Unknown
Syntax Examples ProntoWiki WackoWiki Confluence Instiki Zwiki
Internal Link
[pagename]
[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase
[Page Title]
[Link Title|Page Title#anchor]
[~username]
[^attachment.doc]
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
WikiName
[freeform name]
[[double-bracketed]]
External Link
{title|url}
https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]
[http://www.example.com]
[Link Title|http://www.example.com]
[Shortcut Link|PageName@otherwiki]
[another site](http://example.com)
Bare urls plus markup-specific 
link syntax. This and all 
following syntax examples depend 
on which markup mode is used for 
a page, including:

restructured text, structured 
text, wikiwikiweb, moinmoin, 
html, plaintext..
Headlines
!, !!, !!!
== Level 1 ==
=== Level 2 ===
==== Level 3 ====
===== Level 4 =====
====== Level 5 ======
h1. Top Level Heading
h2. Smaller Heading
h6. Smallest Heading
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######
Bold Format
**bold**
**bold**
*bold*
**bold**
Italics Format
''italics''
//italics//
_italics_
_italic_, *italic*
Underline Format
__under__
__underline__
+underline+
underlined
{: style='text-decoration:underlined'}
Monospace Format
##monospace##
{{monospace}}
`monospace`
Strikethrough Format
<<strike>> (using custom tags)
--strikethrough--
-strikethrough-
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
Superscript Format
<<super>> (using custom tags)
^^superscript^^
^superscript^
<sup>superscript</sup>
Subscript Format
<<sub>> (using custom tags)
,,subscript,,
~subscript~
<sub>subscript</sub>
Images
{guid} - this is displayed and can be inserted automatically for each image/page
((image.png))
file:image.png
https://example.com/image.png
![alt text](http://ex.com/image.jpg),
[[image.jpg|alt text:pic]]
Aligning Text
available through custom tags
{html}<div align="right">{html}

%%(wacko wrapper="text" wrapper_align="center")
content%%
p{: style='text-align:left'}
p{: style='text-align:right'}
p{: style='text-align:center'}
p{: style='text-align:justify'}
Text Indentation
multiple spaces -> &nbsp;
one
two
p
{: style='margin-left:3em'}

> blockquote
Bulleted Lists
+
++
+++
++++
*one
**One-two
*two
*three
* one
** one-two
* two
* three
* Item 1
** Item 1.1
* Item 2
Numbered Lists
#
##
###
####
1. numbered List
1. numbered List-2
2.#8 numbered List, with break


# one
## one-two
# two
# three
1. Item 1
1. Item 1.1
2. Item 2
Definition Lists
{html}<dl>
<dt>Coffee</dt>
<dd>Black hot drink</dd>
<dt>Milk</dt>
<dd>White cold drink</dd>
</dl>{html}
term
: definition
Horizontal Rule
----
----
***
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