WackoWiki vs. Instiki vs. Zwiki

General Features WackoWiki Instiki Zwiki
Version
6.2.1
0.30.0
0.61
Last Release Date
2026-03-03 (1 month ago)
2019-03-01 (7 years ago)
2008-10-28 (17 years ago)
Last Update here
2026-04-25 (5 days ago)
2019-03-04 (7 years ago)
2008-10-30 (17 years ago)
Author
WackoWiki Team
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
Simon Michael & the Zwiki dev team
URL
Free and Open Source
Yes
Yes
Yes
License
BSD
Ruby's
GPLv2
Programming Language
PHP
Ruby on Rails
Python
Data Storage
Database
Database
Database
License Cost/ Fee
0
0
0
Development status
Mature
Mature
Mature
Intended Audience
Advanced End Users, Developers, End Users/Desktop
general, education
anyone able to install or get access to a zope server
System Requirements WackoWiki Instiki Zwiki
Operating System
OS Independent
UNIX, Windows, MacOS X
any
Root Access
No
No
No
Webserver
run with the appserver/webserver of your choice
Thin (included), or Apache/NGinx (via Passenger)
Zope
Other Requirements
mod_rewrite (optional)
Ruby 2.0-2.6
Datastorage WackoWiki Instiki Zwiki
Text Files
No
No
Plugin
MySQL
Yes
Yes
Plugin
PostgreSQL
No
Yes
Plugin
Oracle
No
Plugin
Plugin
SQLite
Yes
Yes
Unknown
BerkeleyDB
No
No
Unknown
RCS
No
No
Unknown
Other
MariaDB
Any Rails-compatible back-end datastore can be used.
ZODB (zope object database)
Security/Anti-Spam WackoWiki Instiki Zwiki
Page Permissions
Yes
Yes
Yes
ACL
Yes
No
Yes
Authentication Backends
LDAP (patch), ActiveDirectory
any supported by Zope authentication plugins
Host Blocking
Optional
Yes
Patch
Mail Encryption
Optional
Unknown
Yes
nofollow
Optional
Unknown
Unknown
Blacklist
Yes
Yes
Yes
CAPTCHA
Yes
Unknown
No
Delayed Indexing
No
Unknown
Patch
Development/Support WackoWiki Instiki Zwiki
# of Consultants
Preconfigured Hosting
Yes
No
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
#zwiki on freenode
Stars on GitHub
55 ⭐
506 ⭐
N/A
Common Features WackoWiki Instiki Zwiki
Preview
Yes
No
Yes
Minor Changes
Yes
Yes
No
Change Summary
Yes
No
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
No
Yes
Special Features WackoWiki Instiki Zwiki
Unicode Support
Yes
Yes
Yes
Right-to-Left Support
Yes
Yes
Optional
Interface Languages
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
1
English
0
Email notification
Yes
No
Yes
Comments
Flat
No
Flat
Categories
Yes
Yes
No
Namespaces
Yes
No
No
Conflict Handling
Page Locking
Page Locking
Conflict Detection
Concurrent Editing
No
Unknown
Unknown
Search
Full Text
Full Text
Full Text
Wiki Farming
Patch
Yes
Unknown
Structured Data
Plugin
No
Unknown
Links WackoWiki Instiki Zwiki
CamelCase
Optional
Optional
Optional
Freelinks
Yes
Yes
Optional
Backlinks
Yes
Yes
Yes
InterWiki
Yes
Yes
Yes
SisterWiki
No
No
No
Image Links
Yes
Yes
Yes
Windows Shares
Yes
No
Unknown
Page Redirects
Yes
Yes
Unknown
Syntax Features WackoWiki Instiki Zwiki
HTML Tags
All
All
Optional
Math formulas
Plugin
Yes
Plugin
Tables
simple + complex
simple + complex
simple + complex
CREOLE support
No
No
No
Markdown Support
No
Yes
No
Textile Support
No
Yes
No
BBCode Support
Patch
No
No
Emoticon Images
Yes
No
Patch
Syntax Highlighting
Yes
Yes
No
Footnotes
Yes
Yes
Yes
Quoting
Yes
Yes
Yes
Internal Comments
Yes
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
No
No
Optional
Scripting
actions (PHP)
None
DTML
Content Includes
Yes
Yes
Yes
Feed Aggregation
Yes
No
Plugin
Usability WackoWiki Instiki Zwiki
Section Editing
Yes
No
No
Page Templates
Yes
No
No
Double-Click Edit
Yes
No
Patch
Toolbar
Yes
No
No
WYSIWYG Editing
Plugin
No
Plugin
Access Keys
Yes
Yes
Yes
Auto Signature
Yes
Yes
Yes
Statistics WackoWiki Instiki Zwiki
Recent Changes
Yes
Yes
Yes
Wanted Pages
Yes
Yes
No
Orphaned Pages
Yes
Yes
Optional
Most/Least Popular
Yes
No
Optional
Recent Visitors
Yes
No
Plugin
Analysis
Plugin
No
No
Output WackoWiki Instiki Zwiki
Printer Friendly
Print View
Print View
Print View
Mobile Friendly
Yes
Yes
Unknown
Themes & Skins
Yes
No
Yes
RSS Feeds
Yes
No
Yes
ATOM Feeds
No
Yes
No
Abbreviations
Patch
Yes
Unknown
Auto-TOC
Yes
Yes
Plugin
Raw Export
Yes
Yes
Yes
HTML Export
Yes
Yes
Yes
XML export
Yes
No
Yes
PDF Export
Patch
No
Patch
Office Export
Patch
Unknown
Unknown
Media and Files WackoWiki Instiki Zwiki
File Attachments
Yes
Yes
Yes
Media Revisions
No
No
No
Embedded Flash
Yes
No
Yes
Embedded Video
Yes
Yes
Yes
Image Editing
No
No
No
SVG Editing
No
Yes
No
MindMap Editing
Plugin
No
No
Media Search
Contents
No
Filenames only
Extras WackoWiki Instiki Zwiki
Calendar
Plugin
No
Unknown
Image Galleries
Plugin
No
Unknown
Presentations
Plugin
Unknown
Unknown
Forums
Optional
No
Unknown
Blogs
Optional
No
Unknown
Ticket System
No
No
Unknown
Chat
Patch
Unknown
Unknown
Syntax Examples WackoWiki Instiki Zwiki
Internal Link
[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
WikiName
[freeform name]
[[double-bracketed]]
External Link
https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]
[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 ======
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######
Bold Format
**bold**
**bold**
Italics Format
//italics//
_italic_, *italic*
Underline Format
__underline__
underlined
{: style='text-decoration:underlined'}
Monospace Format
##monospace##
`monospace`
Strikethrough Format
--strikethrough--
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
Superscript Format
^^superscript^^
<sup>superscript</sup>
Subscript Format
,,subscript,,
<sub>subscript</sub>
Images
((image.png))
file:image.png
https://example.com/image.png
![alt text](http://ex.com/image.jpg),
[[image.jpg|alt text:pic]]
Aligning Text
{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
one
two
p
{: style='margin-left:3em'}

> blockquote
Bulleted Lists
*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


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
----
***
remove WackoWiki remove Instiki remove Zwiki