Instiki vs. ErfurtWiki vs. WackoWiki

General Features Instiki ErfurtWiki WackoWiki
Version
0.30.0
R1.02b (kind of final release :-)
6.2.0
Last Release Date
2019-03-01 (6 years ago)
2005-06-16 (20 years ago)
2025-12-14 (1 month ago)
Last Update here
2019-03-04 (6 years ago)
2010-04-04 (15 years ago)
2025-12-13 (1 month ago)
Author
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
Mario Salzer & Andi Fundinger
WackoWiki Team
URL
Free and Open Source
Yes
Yes
Yes
License
Ruby's
Public Domain (!)
BSD
Programming Language
Ruby on Rails
PHP
PHP
Data Storage
Database
Database, Files, RCS
Database
License Cost/ Fee
0
0
0
Development status
Mature
Mature
Mature
Intended Audience
general, education
small + medium sites, development teams
Advanced End Users, Developers, End Users/Desktop
System Requirements Instiki ErfurtWiki WackoWiki
Operating System
UNIX, Windows, MacOS X
any
OS Independent
Root Access
No
No
No
Webserver
Thin (included), or Apache/NGinx (via Passenger)
anything with PHP support
run with the appserver/webserver of your choice
Other Requirements
Ruby 2.0-2.6
none
mod_rewrite (optional)
Datastorage Instiki ErfurtWiki WackoWiki
Text Files
No
Plugin
No
MySQL
Yes
Plugin
Yes
PostgreSQL
Yes
Plugin
No
Oracle
Plugin
No
No
SQLite
Yes
Plugin
Yes
BerkeleyDB
No
Plugin
No
RCS
No
Plugin
No
Other
Any Rails-compatible back-end datastore can be used.
no
MariaDB
Security/Anti-Spam Instiki ErfurtWiki WackoWiki
Page Permissions
Yes
Yes
Yes
ACL
No
Yes
Yes
Authentication Backends
UNIX, LDAP, MySQL, PHP, other
LDAP (patch), ActiveDirectory
Host Blocking
Yes
Plugin
Optional
Mail Encryption
Unknown
Plugin
Optional
nofollow
Unknown
Plugin
Optional
Blacklist
Yes
Plugin
Yes
CAPTCHA
Unknown
Plugin
Yes
Delayed Indexing
Unknown
Patch
No
Development/Support Instiki ErfurtWiki WackoWiki
# of Consultants
Preconfigured Hosting
No
No
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
not yet :-)
Stars on GitHub
510 ⭐
N/A
55 ⭐
Common Features Instiki ErfurtWiki WackoWiki
Preview
No
Yes
Yes
Minor Changes
Yes
Plugin
Yes
Change Summary
No
Plugin
Yes
Page History
Yes
Yes
Yes
Page Revisions
Unlimited
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Sitemap
Yes
Plugin
Yes
Plugin System
No
Yes
Yes
Special Features Instiki ErfurtWiki WackoWiki
Unicode Support
Yes
No
Yes
Right-to-Left Support
Yes
Patch
Yes
Interface Languages
1
English
4
German, English, Spanish, Dutch
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
No
Plugin
Yes
Comments
No
Plugin
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
Yes
Optional
Patch
Structured Data
No
No
Plugin
Links Instiki ErfurtWiki WackoWiki
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
No
Yes
Yes
Page Redirects
Yes
Plugin
Yes
Syntax Features Instiki ErfurtWiki WackoWiki
HTML Tags
All
Plugin
All
Math formulas
Yes
No
Plugin
Tables
simple + complex
simple + complex
simple
CREOLE support
No
Optional
No
Markdown Support
Yes
No
No
Textile Support
Yes
No
No
BBCode Support
No
Plugin
Patch
Emoticon Images
No
Plugin
Yes
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
None
optional
actions (PHP)
Content Includes
Yes
Plugin
Yes
Feed Aggregation
No
Plugin
Yes
Usability Instiki ErfurtWiki WackoWiki
Section Editing
No
No
Yes
Page Templates
No
Yes
Yes
Double-Click Edit
No
Patch
Yes
Toolbar
No
No
Yes
WYSIWYG Editing
No
No
Plugin
Access Keys
Yes
Optional
Yes
Auto Signature
Yes
No
Yes
Statistics Instiki ErfurtWiki WackoWiki
Recent Changes
Yes
Plugin
Yes
Wanted Pages
Yes
Plugin
Yes
Orphaned Pages
Yes
Plugin
Yes
Most/Least Popular
No
Plugin
Yes
Recent Visitors
No
Optional
Yes
Analysis
No
No
Plugin
Output Instiki ErfurtWiki WackoWiki
Printer Friendly
Print View
Print CSS
Print View
Mobile Friendly
Yes
Yes
Yes
Themes & Skins
No
Yes
Yes
RSS Feeds
No
Plugin
Yes
ATOM Feeds
Yes
Plugin
No
Abbreviations
Yes
Optional
Patch
Auto-TOC
Yes
Plugin
Yes
Raw Export
Yes
Yes
Yes
HTML Export
Yes
Yes
Yes
XML export
No
Optional
Yes
PDF Export
No
Optional
Patch
Office Export
Unknown
Unknown
Patch
Media and Files Instiki ErfurtWiki WackoWiki
File Attachments
Yes
Plugin
Yes
Media Revisions
No
No
No
Embedded Flash
No
Plugin
Yes
Embedded Video
Yes
Plugin
Yes
Image Editing
No
No
No
SVG Editing
Yes
No
No
MindMap Editing
No
No
Plugin
Media Search
No
No
Contents
Extras Instiki ErfurtWiki WackoWiki
Calendar
No
Plugin
Plugin
Image Galleries
No
Plugin
Plugin
Presentations
Unknown
Unknown
Plugin
Forums
No
No
Optional
Blogs
No
Yes
Optional
Ticket System
No
No
No
Chat
Unknown
Unknown
Patch
Syntax Examples Instiki ErfurtWiki WackoWiki
Internal Link
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
WikiPage
[WikiPage | Go here]
[[InternalLink]] 
((InternalLink))
[[InternalLink alternate text]]
CamelCase
External Link
[another site](http://example.com)
http://erfurtwiki.sf.net
[http://erfurtwiki.sf.net | Go here]
mario@wiki.net
https://wackowiki.org
[[https://wackowiki.org WackoWiki]]
[[Wikipedia:WackoWiki]]
Headlines
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######
!!! Big Headline
!! Medium Headline
! Section Headline
== Level 1 ==
=== Level 2 ===
==== Level 3 ====
===== Level 4 =====
====== Level 5 ======
Bold Format
**bold**
__bold text__
**bold text**
**bold**
Italics Format
_italic_, *italic*
''ialic text''
//italics//
Underline Format
underlined
{: style='text-decoration:underlined'}
optional or via css
__underline__
Monospace Format
`monospace`
==monospaced text==
##monospace##
Strikethrough Format
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
optional or via css
--strikethrough--
Superscript Format
<sup>superscript</sup>
^^superscript text^^
^^superscript^^
Subscript Format
<sub>subscript</sub>
optional or via css
vvsubscriptvv
Images
![alt text](http://ex.com/image.jpg),
[[image.jpg|alt text:pic]]
[link to the image.jpg]
((image.png))
file:image.png
https://example.com/image.png
Aligning Text
p{: style='text-align:left'}
p{: style='text-align:right'}
p{: style='text-align:center'}
p{: style='text-align:justify'}
optional or via css
{html}<div align="right">{html}

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

> blockquote
just use 3 spaces or tabs
indented text
one
two
Bulleted Lists
* Item 1
** Item 1.1
* Item 2
* Item A
* Item B
** Item B1
*one
**One-two
*two
*three
Numbered Lists
1. Item 1
1. Item 1.1
2. Item 2
# Item 1
## Item 1.1
##* Item 1.1a
##* Item 1.1b

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


Definition Lists
term
: definition
:definition: explanation
:anotherdef: another description
{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 Instiki remove ErfurtWiki remove WackoWiki