Instiki vs. WikkaWiki vs. PhpWiki

General Features Instiki WikkaWiki PhpWiki
Version
0.30.0
1.4.2
phpwiki-1.3.14
Last Release Date
2019-03-01 (7 years ago)
2020-04-20 (6 years ago)
2007-07-01 (19 years ago)
Last Update here
2019-03-04 (7 years ago)
2020-04-20 (6 years ago)
2009-04-03 (17 years ago)
Author
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
Wikka Development Team
Steve Wainstead, Jeff Dairiki, Reini Urban, Carsten Klapp, Marc-Etienne Vargenau
URL
Free and Open Source
Yes
Yes
Yes
License
Ruby's
GPL
GPL
Programming Language
Ruby on Rails
PHP
PHP
Data Storage
Database
Database
Database, Files, RCS
License Cost/ Fee
0
0
0
Development status
Mature
Mature
Mature
Intended Audience
general, education
Individual users (PIM/website backend), development teams (software documentation/knowledge base), organizations and companies (intranet/public website backend)
Any
System Requirements Instiki WikkaWiki PhpWiki
Operating System
UNIX, Windows, MacOS X
any (platform-independent)
UNIX, Windows, MacOS X, probably others
Root Access
No
No
No
Webserver
Thin (included), or Apache/NGinx (via Passenger)
any server with PHP/MySQL support
Apache, IIS, anything with PHP support
Other Requirements
Ruby 2.0-2.6
mod_rewrite (optional)
various opt. helpers
Datastorage Instiki WikkaWiki PhpWiki
Text Files
No
No
Yes
MySQL
Yes
Yes
Yes
PostgreSQL
Yes
No
Yes
Oracle
Plugin
No
Yes
SQLite
Yes
Yes
Yes
BerkeleyDB
No
No
Yes
RCS
No
No
Yes
Other
Any Rails-compatible back-end datastore can be used.
No
gdbm, cvs, MSSQL, ... (ADODB, PearDB)
Security/Anti-Spam Instiki WikkaWiki PhpWiki
Page Permissions
Yes
Yes
Yes
ACL
No
Yes
Yes
Authentication Backends
Active Directory (patch)
db, session, pop, imap, ldap, file, webserver
Host Blocking
Yes
Yes
No
Mail Encryption
Unknown
No
No
nofollow
Unknown
Yes
Yes
Blacklist
Yes
Yes
Yes
CAPTCHA
Unknown
Plugin
Yes
Delayed Indexing
Unknown
No
No
Development/Support Instiki WikkaWiki PhpWiki
# of Consultants
Preconfigured Hosting
No
Yes
No
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
#phpwiki
Stars on GitHub
508 ⭐
42 ⭐
N/A
Common Features Instiki WikkaWiki PhpWiki
Preview
No
Yes
Yes
Minor Changes
Yes
No
Yes
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
Yes
Plugin System
No
Yes
Yes
Special Features Instiki WikkaWiki PhpWiki
Unicode Support
Yes
Yes
Yes
Right-to-Left Support
Yes
Yes
No
Interface Languages
1
English
0
9
German, English, Spanish, French, Italian, Japanese, Dutch, Swedish, Chinese Traditional
Email notification
No
Patch
Yes
Comments
No
Threaded
Plugin
Categories
Yes
Yes
Yes
Namespaces
No
No
No
Conflict Handling
Page Locking
Page Locking
Conflict Resolution
Concurrent Editing
Unknown
Yes
Unknown
Search
Full Text
Full Text
Full Text
Wiki Farming
Yes
No
Yes
Structured Data
No
Plugin
Patch
Links Instiki WikkaWiki PhpWiki
CamelCase
Optional
Yes
Yes
Freelinks
Yes
Patch
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Yes
Yes
Yes
SisterWiki
No
No
No
Image Links
Yes
Yes
Yes
Windows Shares
No
No
Yes
Page Redirects
Yes
Patch
Yes
Syntax Features Instiki WikkaWiki PhpWiki
HTML Tags
All
Some
Some
Math formulas
Yes
Plugin
Plugin
Tables
simple + complex
simple + complex
simple + complex
CREOLE support
No
No
No
Markdown Support
Yes
No
No
Textile Support
Yes
No
No
BBCode Support
No
No
No
Emoticon Images
No
No
No
Syntax Highlighting
Yes
Yes
Plugin
Footnotes
Yes
Plugin
Yes
Quoting
Yes
Yes
Yes
Internal Comments
Yes
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
No
No
No
Scripting
None
Extensibility through drop-in plugins
plugins, templates, PHP
Content Includes
Yes
Yes
Yes
Feed Aggregation
No
Yes
Yes
Usability Instiki WikkaWiki PhpWiki
Section Editing
No
No
No
Page Templates
No
Yes
Yes
Double-Click Edit
No
Yes
Optional
Toolbar
No
Yes
Yes
WYSIWYG Editing
No
Plugin
Patch
Access Keys
Yes
Patch
Yes
Auto Signature
Yes
Patch
Yes
Statistics Instiki WikkaWiki PhpWiki
Recent Changes
Yes
Yes
Yes
Wanted Pages
Yes
Yes
Yes
Orphaned Pages
Yes
Yes
Yes
Most/Least Popular
No
Patch
Yes
Recent Visitors
No
Patch
Yes
Analysis
No
Yes
Plugin
Output Instiki WikkaWiki PhpWiki
Printer Friendly
Print View
Print CSS
Print CSS
Mobile Friendly
Yes
Unknown
No
Themes & Skins
No
Yes
Yes
RSS Feeds
No
Yes
Yes
ATOM Feeds
Yes
Plugin
No
Abbreviations
Yes
Patch
No
Auto-TOC
Yes
Yes
Yes
Raw Export
Yes
Yes
Yes
HTML Export
Yes
Yes
Yes
XML export
No
Patch
No
PDF Export
No
No
Yes
Office Export
Unknown
No
Unknown
Media and Files Instiki WikkaWiki PhpWiki
File Attachments
Yes
Yes
Yes
Media Revisions
No
No
Yes
Embedded Flash
No
Yes
Yes
Embedded Video
Yes
No
Yes
Image Editing
No
No
No
SVG Editing
Yes
No
No
MindMap Editing
No
Yes
No
Media Search
No
No
No
Extras Instiki WikkaWiki PhpWiki
Calendar
No
Plugin
Yes
Image Galleries
No
Plugin
Yes
Presentations
Unknown
No
Unknown
Forums
No
No
Yes
Blogs
No
Plugin
Yes
Ticket System
No
No
No
Chat
Unknown
No
Unknown
Syntax Examples Instiki WikkaWiki PhpWiki
Internal Link 
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
 
CamelCase
[[forced]]
[[forced|This is a link]]
[[forced |日本語]]
 
WikiWord or [somelink]
[ desc | pagename ]
External Link 
[another site](http://example.com)
 
http://wikkawiki.org
[[http://wikkawiki.org|Wikka Wiki]]
[[Wikipedia:WikkaWiki]]
 
http://someserver/someurl
[ desc | exturl ]
Headlines 
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######

====== Level 1 ======
===== Level 2 =====
==== Level 3 ====
=== Level 4 ===
== Level 5 ==
 
!!!Headline1
!!Headline2
!Headline3
Bold Format 
**bold**
 
**bold**
 
*bold* or
<strong>bold</strong>
Italics Format 
_italic_, *italic*
 
//italic//
 
_italics_ or 
or
<em>italics</em>
Underline Format 
underlined
{: style='text-decoration:underlined'}
 
__underlined__
 
<u>underlined</u>
Monospace Format 
`monospace`
 
##monospaced##
 
<tt>monospace</tt>
<code>code</code>
<pre>preformatted</pre>
<verbatim>
unparsed text</verbatim>
Strikethrough Format 
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
 
++Strike through text++
 
<strike>striked through</strike>
Superscript Format 
<sup>superscript</sup>
 
""<sup>Superscript</sup>""
 
<sup>above</sup>
Subscript Format 
<sub>subscript</sub>
 
""<sub>Subscript</sub>""
 
<sub>below</sub>
Images 
![alt text](http://ex.com/image.jpg),
[[image.jpg|alt text:pic]]
 
http://foo.bar/bar.jpg
{{image url="local.jpg"}}
{{image url="http://foo.bar/bar.jpg"}}
 
[ http://foo.org/1.jpg size=30%] 
external image
[Upload:view.jpg align=right size=50x40] 
view uploaded image
[Upload:view.jpg | http://server/external-linkjpg ] 
view and link to another image
Aligning Text 
p{: style='text-align:left'}
p{: style='text-align:right'}
p{: style='text-align:center'}
p{: style='text-align:justify'}
 
@@Center text@@
<<left floated<<
>>right floated>>
 
<?plugin RawHtml <span align="right"> ?>right<?plugin RawHtml </span> ?>
or <div align="right"> right </div>
Text Indentation 
p
{: style='margin-left:3em'}

> blockquote
 
(4 spaces or a ~ can replace a tab)
indented
~indented
 
;: left indent
;;: more left indent

or 
paragraph
and another level
Bulleted Lists 
* Item 1
** Item 1.1
* Item 2
 
(4 spaces or a ~ can replace a tab)

~- Item 1
~~- Item 1.1
~- Item 2
 
* list
or
- list
Numbered Lists 
1. Item 1
1. Item 1.1
2. Item 2
 
(4 spaces or a ~ can replace a tab)

~1) Item 1
~~1) Item 1.1
~1) Item 2

(more options for lists are available)
 
# list
Definition Lists 
term
: definition
 
""<dl>
<dt>Coffee</dt>
<dd>Black hot drink</dd>
<dt>Milk</dt>
<dd>White cold drink</dd>
</dl>""
 
Term:<def>
def
Horizontal Rule 
***
 
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remove Instiki remove WikkaWiki remove PhpWiki