WackoWiki vs. ErfurtWiki vs. Instiki

General Features WackoWiki ErfurtWiki Instiki
Version
6.2.0
R1.02b (kind of final release :-)
0.30.0
Last Release Date
2025-12-14 (1 month ago)
2005-06-16 (20 years ago)
2019-03-01 (6 years ago)
Last Update here
2025-12-13 (1 month ago)
2010-04-04 (15 years ago)
2019-03-04 (6 years ago)
Author
WackoWiki Team
Mario Salzer & Andi Fundinger
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
URL
Free and Open Source
Yes
Yes
Yes
License
BSD
Public Domain (!)
Ruby's
Programming Language
PHP
PHP
Ruby on Rails
Data Storage
Database
Database, Files, RCS
Database
License Cost/ Fee
0
0
0
Development status
Mature
Mature
Mature
Intended Audience
Advanced End Users, Developers, End Users/Desktop
small + medium sites, development teams
general, education
System Requirements WackoWiki ErfurtWiki Instiki
Operating System
OS Independent
any
UNIX, Windows, MacOS X
Root Access
No
No
No
Webserver
run with the appserver/webserver of your choice
anything with PHP support
Thin (included), or Apache/NGinx (via Passenger)
Other Requirements
mod_rewrite (optional)
none
Ruby 2.0-2.6
Datastorage WackoWiki ErfurtWiki Instiki
Text Files
No
Plugin
No
MySQL
Yes
Plugin
Yes
PostgreSQL
No
Plugin
Yes
Oracle
No
No
Plugin
SQLite
Yes
Plugin
Yes
BerkeleyDB
No
Plugin
No
RCS
No
Plugin
No
Other
MariaDB
no
Any Rails-compatible back-end datastore can be used.
Security/Anti-Spam WackoWiki ErfurtWiki Instiki
Page Permissions
Yes
Yes
Yes
ACL
Yes
Yes
No
Authentication Backends
LDAP (patch), ActiveDirectory
UNIX, LDAP, MySQL, PHP, other
Host Blocking
Optional
Plugin
Yes
Mail Encryption
Optional
Plugin
Unknown
nofollow
Optional
Plugin
Unknown
Blacklist
Yes
Plugin
Yes
CAPTCHA
Yes
Plugin
Unknown
Delayed Indexing
No
Patch
Unknown
Development/Support WackoWiki ErfurtWiki Instiki
# of Consultants
Preconfigured Hosting
Yes
No
No
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
not yet :-)
Stars on GitHub
54 ⭐
N/A
510 ⭐
Common Features WackoWiki ErfurtWiki Instiki
Preview
Yes
Yes
No
Minor Changes
Yes
Plugin
Yes
Change Summary
Yes
Plugin
No
Page History
Yes
Yes
Yes
Page Revisions
Unlimited
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Sitemap
Yes
Plugin
Yes
Plugin System
Yes
Yes
No
Special Features WackoWiki ErfurtWiki Instiki
Unicode Support
Yes
No
Yes
Right-to-Left Support
Yes
Patch
Yes
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
4
German, English, Spanish, Dutch
1
English
Email notification
Yes
Plugin
No
Comments
Flat
Plugin
No
Categories
Yes
Yes
Yes
Namespaces
Yes
No
No
Conflict Handling
Page Locking
Page Locking
Page Locking
Concurrent Editing
No
Unknown
Unknown
Search
Full Text
Full Text
Full Text
Wiki Farming
Patch
Optional
Yes
Structured Data
Plugin
No
No
Links WackoWiki ErfurtWiki Instiki
CamelCase
Optional
Yes
Optional
Freelinks
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Yes
Plugin
Yes
SisterWiki
No
Plugin
No
Image Links
Yes
Patch
Yes
Windows Shares
Yes
Yes
No
Page Redirects
Yes
Plugin
Yes
Syntax Features WackoWiki ErfurtWiki Instiki
HTML Tags
All
Plugin
All
Math formulas
Plugin
No
Yes
Tables
simple
simple + complex
simple + complex
CREOLE support
No
Optional
No
Markdown Support
No
No
Yes
Textile Support
No
No
Yes
BBCode Support
Patch
Plugin
No
Emoticon Images
Yes
Plugin
No
Syntax Highlighting
Yes
Plugin
Yes
Footnotes
Yes
Plugin
Yes
Quoting
Yes
Plugin
Yes
Internal Comments
Yes
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
No
Yes
No
Scripting
actions (PHP)
optional
None
Content Includes
Yes
Plugin
Yes
Feed Aggregation
Yes
Plugin
No
Usability WackoWiki ErfurtWiki Instiki
Section Editing
Yes
No
No
Page Templates
Yes
Yes
No
Double-Click Edit
Yes
Patch
No
Toolbar
Yes
No
No
WYSIWYG Editing
Plugin
No
No
Access Keys
Yes
Optional
Yes
Auto Signature
Yes
No
Yes
Statistics WackoWiki ErfurtWiki Instiki
Recent Changes
Yes
Plugin
Yes
Wanted Pages
Yes
Plugin
Yes
Orphaned Pages
Yes
Plugin
Yes
Most/Least Popular
Yes
Plugin
No
Recent Visitors
Yes
Optional
No
Analysis
Plugin
No
No
Output WackoWiki ErfurtWiki Instiki
Printer Friendly
Print View
Print CSS
Print View
Mobile Friendly
Yes
Yes
Yes
Themes & Skins
Yes
Yes
No
RSS Feeds
Yes
Plugin
No
ATOM Feeds
No
Plugin
Yes
Abbreviations
Patch
Optional
Yes
Auto-TOC
Yes
Plugin
Yes
Raw Export
Yes
Yes
Yes
HTML Export
Yes
Yes
Yes
XML export
Yes
Optional
No
PDF Export
Patch
Optional
No
Office Export
Patch
Unknown
Unknown
Media and Files WackoWiki ErfurtWiki Instiki
File Attachments
Yes
Plugin
Yes
Media Revisions
No
No
No
Embedded Flash
Yes
Plugin
No
Embedded Video
Yes
Plugin
Yes
Image Editing
No
No
No
SVG Editing
No
No
Yes
MindMap Editing
Plugin
No
No
Media Search
Contents
No
No
Extras WackoWiki ErfurtWiki Instiki
Calendar
Plugin
Plugin
No
Image Galleries
Plugin
Plugin
No
Presentations
Plugin
Unknown
Unknown
Forums
Optional
No
No
Blogs
Optional
Yes
No
Ticket System
No
No
No
Chat
Patch
Unknown
Unknown
Syntax Examples WackoWiki ErfurtWiki Instiki
Internal Link
[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase
WikiPage
[WikiPage | Go here]
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
External Link
https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]
http://erfurtwiki.sf.net
[http://erfurtwiki.sf.net | Go here]
mario@wiki.net
[another site](http://example.com)
Headlines
== Level 1 ==
=== Level 2 ===
==== Level 3 ====
===== Level 4 =====
====== Level 5 ======
!!! Big Headline
!! Medium Headline
! Section Headline
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######
Bold Format
**bold**
__bold text__
**bold text**
**bold**
Italics Format
//italics//
''ialic text''
_italic_, *italic*
Underline Format
__underline__
optional or via css
underlined
{: style='text-decoration:underlined'}
Monospace Format
##monospace##
==monospaced text==
`monospace`
Strikethrough Format
--strikethrough--
optional or via css
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
Superscript Format
^^superscript^^
^^superscript text^^
<sup>superscript</sup>
Subscript Format
vvsubscriptvv
optional or via css
<sub>subscript</sub>
Images
((image.png))
file:image.png
https://example.com/image.png
[link to the image.jpg]
![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%%
optional or via css
p{: style='text-align:left'}
p{: style='text-align:right'}
p{: style='text-align:center'}
p{: style='text-align:justify'}
Text Indentation
one
two
just use 3 spaces or tabs
indented text
p
{: style='margin-left:3em'}

> blockquote
Bulleted Lists
*one
**One-two
*two
*three
* Item A
* Item B
** Item B1
* Item 1
** Item 1.1
* Item 2
Numbered Lists
1. numbered List
1. numbered List-2
2.#8 numbered List, with break


# Item 1
## Item 1.1
##* Item 1.1a
##* Item 1.1b

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}
:definition: explanation
:anotherdef: another description
term
: definition
Horizontal Rule
----
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***
remove WackoWiki remove ErfurtWiki remove Instiki