Instiki vs. WackoWiki vs. ikiwiki

General Features Instiki WackoWiki ikiwiki
Version
0.30.0
6.3.0
2.67
Last Release Date
2019-03-01 (7 years ago)
2026-07-18 (1 month ago)
2008-10-17 (17 years ago)
Last Update here
2019-03-04 (7 years ago)
2026-07-18 (1 month ago)
2008-10-28 (17 years ago)
Author
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
WackoWiki Team
Joey Hess and the ikiwiki community
URL
Free and Open Source
Yes
Yes
Yes
License
Ruby's
BSD
GPL
Programming Language
Ruby on Rails
PHP
Perl
Data Storage
Database
Database
Files, RCS
License Cost/ Fee
0
0
0
Development status
Mature
Mature
Mature
Intended Audience
general, education
Advanced End Users, Developers, End Users/Desktop
Anyone
System Requirements Instiki WackoWiki ikiwiki
Operating System
UNIX, Windows, MacOS X
OS Independent
Any
Root Access
No
No
No
Webserver
Thin (included), or Apache/NGinx (via Passenger)
run with the appserver/webserver of your choice
Any, or none
Other Requirements
Ruby 2.0-2.6
mod_rewrite (optional)
Datastorage Instiki WackoWiki ikiwiki
Text Files
No
No
Yes
MySQL
Yes
Yes
No
PostgreSQL
Yes
No
No
Oracle
Plugin
No
No
SQLite
Yes
Yes
No
BerkeleyDB
No
No
No
RCS
No
No
Yes
Other
Any Rails-compatible back-end datastore can be used.
MariaDB
Security/Anti-Spam Instiki WackoWiki ikiwiki
Page Permissions
Yes
Yes
Yes
ACL
No
Yes
Yes
Authentication Backends
LDAP (patch), ActiveDirectory
Built-in, HTTP auth, OpenID; extensible via plugins
Host Blocking
Yes
Optional
Yes
Mail Encryption
Unknown
Optional
Yes
nofollow
Unknown
Optional
No
Blacklist
Yes
Yes
Yes
CAPTCHA
Unknown
Yes
No
Delayed Indexing
Unknown
No
No
Development/Support Instiki WackoWiki ikiwiki
# of Consultants
Preconfigured Hosting
No
Yes
No
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
Stars on GitHub
508 ⭐
55 ⭐
N/A
Common Features Instiki WackoWiki ikiwiki
Preview
No
Yes
Yes
Minor Changes
Yes
Yes
No
Change Summary
No
Yes
Yes
Page History
Yes
Yes
Yes
Page Revisions
Unlimited
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Sitemap
Yes
Yes
Plugin
Plugin System
No
Yes
Yes
Special Features Instiki WackoWiki ikiwiki
Unicode Support
Yes
Yes
Yes
Right-to-Left Support
Yes
Yes
Yes
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
1
English
Email notification
No
Yes
Yes
Comments
No
Flat
Discussion Pages
Categories
Yes
Yes
Plugin
Namespaces
No
Yes
Yes
Conflict Handling
Page Locking
Page Locking
Conflict Resolution
Concurrent Editing
Unknown
No
Unknown
Search
Full Text
Full Text
Full Text
Wiki Farming
Yes
Patch
Yes
Structured Data
No
Plugin
Unknown
Links Instiki WackoWiki ikiwiki
CamelCase
Optional
Optional
Plugin
Freelinks
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Yes
Yes
Plugin
SisterWiki
No
No
Plugin
Image Links
Yes
Yes
Yes
Windows Shares
No
Yes
Yes
Page Redirects
Yes
Yes
Unknown
Syntax Features Instiki WackoWiki ikiwiki
HTML Tags
All
All
Optional
Math formulas
Yes
Plugin
Plugin
Tables
simple + complex
simple + complex
simple + complex
CREOLE support
No
No
No
Markdown Support
Yes
No
Yes
Textile Support
Yes
No
Plugin
BBCode Support
No
Patch
No
Emoticon Images
No
Yes
Plugin
Syntax Highlighting
Yes
Yes
Plugin
Footnotes
Yes
Yes
No
Quoting
Yes
Yes
Yes
Internal Comments
Yes
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
No
No
Yes
Scripting
None
actions (PHP)
safe subset of HTML::Template supported via template plugin
Content Includes
Yes
Yes
Plugin
Feed Aggregation
No
Yes
Plugin
Usability Instiki WackoWiki ikiwiki
Section Editing
No
Yes
No
Page Templates
No
Yes
Yes
Double-Click Edit
No
Yes
No
Toolbar
No
Yes
No
WYSIWYG Editing
No
Plugin
No
Access Keys
Yes
Yes
No
Auto Signature
Yes
Yes
No
Statistics Instiki WackoWiki ikiwiki
Recent Changes
Yes
Yes
Yes
Wanted Pages
Yes
Yes
Plugin
Orphaned Pages
Yes
Yes
Plugin
Most/Least Popular
No
Yes
No
Recent Visitors
No
Yes
No
Analysis
No
Plugin
No
Output Instiki WackoWiki ikiwiki
Printer Friendly
Print View
Print View
Print CSS
Mobile Friendly
Yes
Yes
Yes
Themes & Skins
No
Yes
Yes
RSS Feeds
No
Yes
Plugin
ATOM Feeds
Yes
No
Plugin
Abbreviations
Yes
Patch
No
Auto-TOC
Yes
Yes
Plugin
Raw Export
Yes
Yes
Yes
HTML Export
Yes
Yes
Yes
XML export
No
Yes
No
PDF Export
No
Patch
No
Office Export
Unknown
Patch
Unknown
Media and Files Instiki WackoWiki ikiwiki
File Attachments
Yes
Yes
Yes
Media Revisions
No
No
Yes
Embedded Flash
No
Yes
Optional
Embedded Video
Yes
Yes
Optional
Image Editing
No
No
No
SVG Editing
Yes
No
No
MindMap Editing
No
Plugin
No
Media Search
No
Contents
Filenames only
Extras Instiki WackoWiki ikiwiki
Calendar
No
Plugin
Plugin
Image Galleries
No
Plugin
Plugin
Presentations
Unknown
Plugin
Unknown
Forums
No
Optional
Unknown
Blogs
No
Optional
Yes
Ticket System
No
No
Yes
Chat
Unknown
Patch
Unknown
Syntax Examples Instiki WackoWiki ikiwiki
Internal Link
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase
[[internal]]
External Link
[another site](http://example.com)
https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]
[link text](http://example.org)
Headlines
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######
== Level 1 ==
=== Level 2 ===
==== Level 3 ====
===== Level 4 =====
====== Level 5 ======
Two syntaxes:

# heading 1
## heading 2
### heading 3

heading 1
=========

heading 2
---------
Bold Format
**bold**
**bold**
**bold**
__bold__
Italics Format
_italic_, *italic*
//italics//
*emphasized*
_emphasized_
Underline Format
underlined
{: style='text-decoration:underlined'}
__underline__
via HTML: <u>underlined</u>
Monospace Format
`monospace`
##monospace##
`inline monospace`

indented block of
monospaced text

tab-indented
block
Strikethrough Format
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
--strikethrough--
via HTML: <del>deleted</del>
Superscript Format
<sup>superscript</sup>
^^superscript^^
via HTML: x<sup>2</sup>
Subscript Format
<sub>subscript</sub>
,,subscript,,
via HTML: a<sub>1</sub>
Images
![alt text](http://ex.com/image.jpg),
[[image.jpg|alt text:pic]]
((image.png))
file:image.png
https://example.com/image.png
![alt text](internal/image)
![alt text](http://example.org/external/image)
Aligning Text
p{: style='text-align:left'}
p{: style='text-align:right'}
p{: style='text-align:center'}
p{: style='text-align:justify'}
{html}<div align="right">{html}

%%(wacko wrapper="text" wrapper_align="center")
content%%
Text Indentation
p
{: style='margin-left:3em'}

> blockquote
one
two
Bulleted Lists
* Item 1
** Item 1.1
* Item 2
*one
**One-two
*two
*three
* item 1
* item 2
* item 2.1
* item 2.2
Numbered Lists
1. Item 1
1. Item 1.1
2. Item 2
1. numbered List
1. numbered List-2
2.#8 numbered List, with break


1. item 1
2. item 2
1. item 1.1
42. the value doesn't matter
1. any value works
Definition Lists
term
: definition
{html}<dl>
<dt>Coffee</dt>
<dd>Black hot drink</dd>
<dt>Milk</dt>
<dd>White cold drink</dd>
</dl>{html}
via HTML:
<dl>
<dt>term</dt>
<dd>definition</dd>
</dl>
Horizontal Rule
***
----
---
***
___
------------------
Any number > 3
- - - - - - - - - -
spaces don't matter
remove Instiki remove WackoWiki remove ikiwiki