ErfurtWiki vs. Instiki vs. WackoWiki

General Features ErfurtWiki Instiki WackoWiki
Version
R1.02b (kind of final release :-)
0.30.0
6.2.0
Last Release Date
2005-06-16 (20 years ago)
2019-03-01 (6 years ago)
2025-12-14 (2 months ago)
Last Update here
2010-04-04 (15 years ago)
2019-03-04 (6 years ago)
2026-02-27 (today)
Author
Mario Salzer & Andi Fundinger
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
WackoWiki Team
URL
Free and Open Source
Yes
Yes
Yes
License
Public Domain (!)
Ruby's
BSD
Programming Language
PHP
Ruby on Rails
PHP
Data Storage
Database, Files, RCS
Database
Database
License Cost/ Fee
0
0
0
Development status
Mature
Mature
Mature
Intended Audience
small + medium sites, development teams
general, education
Advanced End Users, Developers, End Users/Desktop
System Requirements ErfurtWiki Instiki WackoWiki
Operating System
any
UNIX, Windows, MacOS X
OS Independent
Root Access
No
No
No
Webserver
anything with PHP support
Thin (included), or Apache/NGinx (via Passenger)
run with the appserver/webserver of your choice
Other Requirements
none
Ruby 2.0-2.6
mod_rewrite (optional)
Datastorage ErfurtWiki Instiki WackoWiki
Text Files
Plugin
No
No
MySQL
Plugin
Yes
Yes
PostgreSQL
Plugin
Yes
No
Oracle
No
Plugin
No
SQLite
Plugin
Yes
Yes
BerkeleyDB
Plugin
No
No
RCS
Plugin
No
No
Other
no
Any Rails-compatible back-end datastore can be used.
MariaDB
Security/Anti-Spam ErfurtWiki Instiki WackoWiki
Page Permissions
Yes
Yes
Yes
ACL
Yes
No
Yes
Authentication Backends
UNIX, LDAP, MySQL, PHP, other
LDAP (patch), ActiveDirectory
Host Blocking
Plugin
Yes
Optional
Mail Encryption
Plugin
Unknown
Optional
nofollow
Plugin
Unknown
Optional
Blacklist
Plugin
Yes
Yes
CAPTCHA
Plugin
Unknown
Yes
Delayed Indexing
Patch
Unknown
No
Development/Support ErfurtWiki Instiki WackoWiki
# of Consultants
Preconfigured Hosting
No
No
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
not yet :-)
Stars on GitHub
N/A
507 ⭐
55 ⭐
Common Features ErfurtWiki Instiki WackoWiki
Preview
Yes
No
Yes
Minor Changes
Plugin
Yes
Yes
Change Summary
Plugin
No
Yes
Page History
Yes
Yes
Yes
Page Revisions
Unlimited
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Sitemap
Plugin
Yes
Yes
Plugin System
Yes
No
Yes
Special Features ErfurtWiki Instiki WackoWiki
Unicode Support
No
Yes
Yes
Right-to-Left Support
Patch
Yes
Yes
Interface Languages
4
German, English, Spanish, Dutch
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
Email notification
Plugin
No
Yes
Comments
Plugin
No
Flat
Categories
Yes
Yes
Yes
Namespaces
No
No
Yes
Conflict Handling
Page Locking
Page Locking
Page Locking
Concurrent Editing
Unknown
Unknown
No
Search
Full Text
Full Text
Full Text
Wiki Farming
Optional
Yes
Patch
Structured Data
No
No
Plugin
Links ErfurtWiki Instiki WackoWiki
CamelCase
Yes
Optional
Optional
Freelinks
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Plugin
Yes
Yes
SisterWiki
Plugin
No
No
Image Links
Patch
Yes
Yes
Windows Shares
Yes
No
Yes
Page Redirects
Plugin
Yes
Yes
Syntax Features ErfurtWiki Instiki WackoWiki
HTML Tags
Plugin
All
All
Math formulas
No
Yes
Plugin
Tables
simple + complex
simple + complex
simple
CREOLE support
Optional
No
No
Markdown Support
No
Yes
No
Textile Support
No
Yes
No
BBCode Support
Plugin
No
Patch
Emoticon Images
Plugin
No
Yes
Syntax Highlighting
Plugin
Yes
Yes
Footnotes
Plugin
Yes
Yes
Quoting
Plugin
Yes
Yes
Internal Comments
Yes
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
Yes
No
No
Scripting
optional
None
actions (PHP)
Content Includes
Plugin
Yes
Yes
Feed Aggregation
Plugin
No
Yes
Usability ErfurtWiki Instiki WackoWiki
Section Editing
No
No
Yes
Page Templates
Yes
No
Yes
Double-Click Edit
Patch
No
Yes
Toolbar
No
No
Yes
WYSIWYG Editing
No
No
Plugin
Access Keys
Optional
Yes
Yes
Auto Signature
No
Yes
Yes
Statistics ErfurtWiki Instiki WackoWiki
Recent Changes
Plugin
Yes
Yes
Wanted Pages
Plugin
Yes
Yes
Orphaned Pages
Plugin
Yes
Yes
Most/Least Popular
Plugin
No
Yes
Recent Visitors
Optional
No
Yes
Analysis
No
No
Plugin
Output ErfurtWiki Instiki WackoWiki
Printer Friendly
Print CSS
Print View
Print View
Mobile Friendly
Yes
Yes
Yes
Themes & Skins
Yes
No
Yes
RSS Feeds
Plugin
No
Yes
ATOM Feeds
Plugin
Yes
No
Abbreviations
Optional
Yes
Patch
Auto-TOC
Plugin
Yes
Yes
Raw Export
Yes
Yes
Yes
HTML Export
Yes
Yes
Yes
XML export
Optional
No
Yes
PDF Export
Optional
No
Patch
Office Export
Unknown
Unknown
Patch
Media and Files ErfurtWiki Instiki WackoWiki
File Attachments
Plugin
Yes
Yes
Media Revisions
No
No
No
Embedded Flash
Plugin
No
Yes
Embedded Video
Plugin
Yes
Yes
Image Editing
No
No
No
SVG Editing
No
Yes
No
MindMap Editing
No
No
Plugin
Media Search
No
No
Contents
Extras ErfurtWiki Instiki WackoWiki
Calendar
Plugin
No
Plugin
Image Galleries
Plugin
No
Plugin
Presentations
Unknown
Unknown
Plugin
Forums
No
No
Optional
Blogs
Yes
No
Optional
Ticket System
No
No
No
Chat
Unknown
Unknown
Patch
Syntax Examples ErfurtWiki Instiki WackoWiki
Internal Link
WikiPage
[WikiPage | Go here]
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase
External Link
http://erfurtwiki.sf.net
[http://erfurtwiki.sf.net | Go here]
mario@wiki.net
[another site](http://example.com)
https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]
Headlines
!!! Big Headline
!! Medium Headline
! Section Headline
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######
== Level 1 ==
=== Level 2 ===
==== Level 3 ====
===== Level 4 =====
====== Level 5 ======
Bold Format
__bold text__
**bold text**
**bold**
**bold**
Italics Format
''ialic text''
_italic_, *italic*
//italics//
Underline Format
optional or via css
underlined
{: style='text-decoration:underlined'}
__underline__
Monospace Format
==monospaced text==
`monospace`
##monospace##
Strikethrough Format
optional or via css
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
--strikethrough--
Superscript Format
^^superscript text^^
<sup>superscript</sup>
^^superscript^^
Subscript Format
optional or via css
<sub>subscript</sub>
,,subscript,,
Images
[link to the image.jpg]
![alt text](http://ex.com/image.jpg),
[[image.jpg|alt text:pic]]
((image.png))
file:image.png
https://example.com/image.png
Aligning Text
optional or via css
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
just use 3 spaces or tabs
indented text
p
{: style='margin-left:3em'}

> blockquote
one
two
Bulleted Lists
* Item A
* Item B
** Item B1
* Item 1
** Item 1.1
* Item 2
*one
**One-two
*two
*three
Numbered Lists
# Item 1
## Item 1.1
##* Item 1.1a
##* Item 1.1b

1. Item 1
1. Item 1.1
2. Item 2
1. numbered List
1. numbered List-2
2.#8 numbered List, with break


Definition Lists
:definition: explanation
:anotherdef: another description
term
: definition
{html}<dl>
<dt>Coffee</dt>
<dd>Black hot drink</dd>
<dt>Milk</dt>
<dd>White cold drink</dd>
</dl>{html}
Horizontal Rule
----
***
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remove ErfurtWiki remove Instiki remove WackoWiki