ProntoWiki vs. WackoWiki vs. Instiki

General Features ProntoWiki WackoWiki Instiki
Version
1.0.1
6.2.0
0.30.0
Last Release Date
2026-01-30 (today)
2025-12-14 (1 month ago)
2019-03-01 (6 years ago)
Last Update here
2006-08-23 (19 years ago)
2025-12-13 (1 month ago)
2019-03-04 (6 years ago)
Author
Clay Alberty
WackoWiki Team
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
URL
Free and Open Source
Yes
Yes
Yes
License
BSD
BSD
Ruby's
Programming Language
C#
PHP
Ruby on Rails
Data Storage
Database
Database
Database
License Cost/ Fee
Free
0
0
Development status
Mature
Mature
Mature
Intended Audience
Advanced End Users, Developers, End Users/Desktop
general, education
System Requirements ProntoWiki WackoWiki Instiki
Operating System
Windows
OS Independent
UNIX, Windows, MacOS X
Root Access
No
No
No
Webserver
IIS 5+
run with the appserver/webserver of your choice
Thin (included), or Apache/NGinx (via Passenger)
Other Requirements
.NET framework v2.0 or higher
mod_rewrite (optional)
Ruby 2.0-2.6
Datastorage ProntoWiki WackoWiki Instiki
Text Files
Unknown
No
No
MySQL
Unknown
Yes
Yes
PostgreSQL
Unknown
No
Yes
Oracle
Unknown
No
Plugin
SQLite
Unknown
Yes
Yes
BerkeleyDB
Unknown
No
No
RCS
Unknown
No
No
Other
SQLExpress or SQL 2000 or SQL 2005
MariaDB
Any Rails-compatible back-end datastore can be used.
Security/Anti-Spam ProntoWiki WackoWiki Instiki
Page Permissions
Yes
Yes
Yes
ACL
No
Yes
No
Authentication Backends
.NET Membership platform
LDAP (patch), ActiveDirectory
Host Blocking
No
Optional
Yes
Mail Encryption
No
Optional
Unknown
nofollow
No
Optional
Unknown
Blacklist
No
Yes
Yes
CAPTCHA
No
Yes
Unknown
Delayed Indexing
No
No
Unknown
Development/Support ProntoWiki WackoWiki Instiki
# of Consultants
Preconfigured Hosting
No
Yes
No
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
Stars on GitHub
N/A
54 ⭐
510 ⭐
Common Features ProntoWiki WackoWiki Instiki
Preview
Yes
Yes
No
Minor Changes
No
Yes
Yes
Change Summary
No
Yes
No
Page History
Yes
Yes
Yes
Page Revisions
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Sitemap
Unknown
Yes
Yes
Plugin System
No
Yes
No
Special Features ProntoWiki WackoWiki Instiki
Unicode Support
No
Yes
Yes
Right-to-Left Support
Unknown
Yes
Yes
Interface Languages
1
English
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
1
English
Email notification
No
Yes
No
Comments
No
Flat
No
Categories
Optional
Yes
Yes
Namespaces
No
Yes
No
Conflict Handling
Page Locking
Page Locking
Concurrent Editing
Unknown
No
Unknown
Search
Full Text
Full Text
Full Text
Wiki Farming
Unknown
Patch
Yes
Structured Data
Unknown
Plugin
No
Links ProntoWiki WackoWiki Instiki
CamelCase
Optional
Optional
Optional
Freelinks
Yes
Yes
Yes
Backlinks
No
Yes
Yes
InterWiki
No
Yes
Yes
SisterWiki
No
No
No
Image Links
Optional
Yes
Yes
Windows Shares
No
Yes
No
Page Redirects
Unknown
Yes
Yes
Syntax Features ProntoWiki WackoWiki Instiki
HTML Tags
Some
All
All
Math formulas
No
Plugin
Yes
Tables
none
simple
simple + complex
CREOLE support
Unknown
No
No
Markdown Support
Unknown
No
Yes
Textile Support
Unknown
No
Yes
BBCode Support
Unknown
Patch
No
Emoticon Images
No
Yes
No
Syntax Highlighting
No
Yes
Yes
Footnotes
Optional
Yes
Yes
Quoting
Optional
Yes
Yes
Internal Comments
No
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
No
No
No
Scripting
actions (PHP)
None
Content Includes
No
Yes
Yes
Feed Aggregation
No
Yes
No
Usability ProntoWiki WackoWiki Instiki
Section Editing
No
Yes
No
Page Templates
No
Yes
No
Double-Click Edit
No
Yes
No
Toolbar
Yes
Yes
No
WYSIWYG Editing
No
Plugin
No
Access Keys
No
Yes
Yes
Auto Signature
No
Yes
Yes
Statistics ProntoWiki WackoWiki Instiki
Recent Changes
Unknown
Yes
Yes
Wanted Pages
No
Yes
Yes
Orphaned Pages
No
Yes
Yes
Most/Least Popular
Optional
Yes
No
Recent Visitors
No
Yes
No
Analysis
No
Plugin
No
Output ProntoWiki WackoWiki Instiki
Printer Friendly
Print View
Print View
Mobile Friendly
Unknown
Yes
Yes
Themes & Skins
Yes
Yes
No
RSS Feeds
No
Yes
No
ATOM Feeds
No
No
Yes
Abbreviations
No
Patch
Yes
Auto-TOC
No
Yes
Yes
Raw Export
No
Yes
Yes
HTML Export
No
Yes
Yes
XML export
No
Yes
No
PDF Export
No
Patch
No
Office Export
Unknown
Patch
Unknown
Media and Files ProntoWiki WackoWiki Instiki
File Attachments
Yes
Yes
Yes
Media Revisions
No
No
No
Embedded Flash
Unknown
Yes
No
Embedded Video
Unknown
Yes
Yes
Image Editing
No
No
No
SVG Editing
No
No
Yes
MindMap Editing
No
Plugin
No
Media Search
Contents
No
Extras ProntoWiki WackoWiki Instiki
Calendar
Unknown
Plugin
No
Image Galleries
Unknown
Plugin
No
Presentations
Unknown
Plugin
Unknown
Forums
Unknown
Optional
No
Blogs
Unknown
Optional
No
Ticket System
Unknown
No
No
Chat
Unknown
Patch
Unknown
Syntax Examples ProntoWiki WackoWiki Instiki
Internal Link
[pagename]
[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
External Link
{title|url}
https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]
[another site](http://example.com)
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**
**bold**
Italics Format
''italics''
//italics//
_italic_, *italic*
Underline Format
__under__
__underline__
underlined
{: style='text-decoration:underlined'}
Monospace Format
##monospace##
`monospace`
Strikethrough Format
<<strike>> (using custom tags)
--strikethrough--
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
Superscript Format
<<super>> (using custom tags)
^^superscript^^
<sup>superscript</sup>
Subscript Format
<<sub>> (using custom tags)
vvsubscriptvv
<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
* 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 ProntoWiki remove WackoWiki remove Instiki