| General Features | Friki | Instiki | WikkaWiki |
|---|---|---|---|
| Version |
2.1.1
|
0.30.0
|
1.4.2
|
| Last Release Date |
2004-05-14 (21 years ago)
|
2019-03-01 (7 years ago)
|
2020-04-20 (5 years ago)
|
| Last Update here |
2006-02-14 (20 years ago)
|
2019-03-04 (7 years ago)
|
2020-04-20 (5 years ago)
|
| Author |
Frank Carver
|
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
|
Wikka Development Team
|
| URL | |||
| Free and Open Source |
Yes
|
Yes
|
Yes
|
| License |
ASL or LGPL
|
Ruby's
|
GPL
|
| Programming Language |
Java
|
Ruby on Rails
|
PHP
|
| Data Storage |
Files
|
Database
|
Database
|
| License Cost/ Fee |
0
|
0
|
0
|
| Development status |
Mature
|
Mature
|
Mature
|
| Intended Audience |
private users and small teams
|
general, education
|
Individual users (PIM/website backend), development teams (software documentation/knowledge base), organizations and companies (intranet/public website backend)
|
| System Requirements | Friki | Instiki | WikkaWiki |
| Operating System |
Any that can run Java 1.3 or later
|
UNIX, Windows, MacOS X
|
any (platform-independent)
|
| Root Access |
No
|
No
|
No
|
| Webserver |
Any that can run or call Java
|
Thin (included), or Apache/NGinx (via Passenger)
|
any server with PHP/MySQL support
|
| Other Requirements |
Java 1.3 or later
|
Ruby 2.0-2.6
|
mod_rewrite (optional)
|
| Datastorage | Friki | Instiki | WikkaWiki |
| Text Files |
Yes
|
No
|
No
|
| MySQL |
No
|
Yes
|
Yes
|
| PostgreSQL |
No
|
Yes
|
No
|
| Oracle |
No
|
Plugin
|
No
|
| SQLite |
No
|
Yes
|
Yes
|
| BerkeleyDB |
No
|
No
|
No
|
| RCS |
No
|
No
|
No
|
| Other |
Any Rails-compatible back-end datastore can be used.
|
No
|
|
| Security/Anti-Spam | Friki | Instiki | WikkaWiki |
| Page Permissions |
No
|
Yes
|
Yes
|
| ACL |
No
|
No
|
Yes
|
| Authentication Backends |
Active Directory (patch)
|
||
| Host Blocking |
Patch
|
Yes
|
Yes
|
| Mail Encryption |
No
|
Unknown
|
No
|
| nofollow |
Optional
|
Unknown
|
Yes
|
| Blacklist |
No
|
Yes
|
Yes
|
| CAPTCHA |
No
|
Unknown
|
Plugin
|
| Delayed Indexing |
No
|
Unknown
|
No
|
| Development/Support | Friki | Instiki | WikkaWiki |
| # of Consultants | |||
| Preconfigured Hosting |
No
|
No
|
Yes
|
| Code Repository | |||
| Issue Tracker | |||
| Mailing List | |||
| Support Forum | |||
| Chat Channel | |||
| Stars on GitHub |
N/A
|
506 ⭐
|
42 ⭐
|
| Common Features | Friki | Instiki | WikkaWiki |
| Preview |
No
|
No
|
Yes
|
| Minor Changes |
No
|
Yes
|
No
|
| Change Summary |
No
|
No
|
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
|
No
|
Yes
|
| Special Features | Friki | Instiki | WikkaWiki |
| Unicode Support |
Yes
|
Yes
|
Yes
|
| Right-to-Left Support |
Unknown
|
Yes
|
Yes
|
| Interface Languages |
0
|
1
English |
0
|
| Email notification |
No
|
No
|
Patch
|
| Comments |
No
|
No
|
Threaded
|
| Categories |
Unknown
|
Yes
|
Yes
|
| Namespaces |
Unknown
|
No
|
No
|
| Conflict Handling |
None
|
Page Locking
|
Page Locking
|
| Concurrent Editing |
Unknown
|
Unknown
|
Yes
|
| Search |
Full Text
|
Full Text
|
Full Text
|
| Wiki Farming |
Unknown
|
Yes
|
No
|
| Structured Data |
Unknown
|
No
|
Plugin
|
| Links | Friki | Instiki | WikkaWiki |
| CamelCase |
Yes
|
Optional
|
Yes
|
| Freelinks |
Yes
|
Yes
|
Patch
|
| Backlinks |
Yes
|
Yes
|
Yes
|
| InterWiki |
Yes
|
Yes
|
Yes
|
| SisterWiki |
No
|
No
|
No
|
| Image Links |
Optional
|
Yes
|
Yes
|
| Windows Shares |
No
|
No
|
No
|
| Page Redirects |
Unknown
|
Yes
|
Patch
|
| Syntax Features | Friki | Instiki | WikkaWiki |
| HTML Tags |
None
|
All
|
Some
|
| Math formulas |
No
|
Yes
|
Plugin
|
| Tables |
complex
|
simple + complex
|
simple + complex
|
| CREOLE support |
Unknown
|
No
|
No
|
| Markdown Support |
Optional
|
Yes
|
No
|
| Textile Support |
Optional
|
Yes
|
No
|
| BBCode Support |
Optional
|
No
|
No
|
| Emoticon Images |
Optional
|
No
|
No
|
| Syntax Highlighting |
Optional
|
Yes
|
Yes
|
| Footnotes |
No
|
Yes
|
Plugin
|
| Quoting |
No
|
Yes
|
Yes
|
| Internal Comments |
No
|
Yes
|
Yes
|
| Custom styles |
Yes
|
Yes
|
Yes
|
| FAQ Tags |
No
|
No
|
No
|
| Scripting |
None
|
Extensibility through drop-in plugins
|
|
| Content Includes |
No
|
Yes
|
Yes
|
| Feed Aggregation |
No
|
No
|
Yes
|
| Usability | Friki | Instiki | WikkaWiki |
| Section Editing |
No
|
No
|
No
|
| Page Templates |
No
|
No
|
Yes
|
| Double-Click Edit |
No
|
No
|
Yes
|
| Toolbar |
No
|
No
|
Yes
|
| WYSIWYG Editing |
No
|
No
|
Plugin
|
| Access Keys |
Unknown
|
Yes
|
Patch
|
| Auto Signature |
No
|
Yes
|
Patch
|
| Statistics | Friki | Instiki | WikkaWiki |
| Recent Changes |
Yes
|
Yes
|
Yes
|
| Wanted Pages |
No
|
Yes
|
Yes
|
| Orphaned Pages |
No
|
Yes
|
Yes
|
| Most/Least Popular |
No
|
No
|
Patch
|
| Recent Visitors |
Yes
|
No
|
Patch
|
| Analysis |
No
|
No
|
Yes
|
| Output | Friki | Instiki | WikkaWiki |
| Printer Friendly |
No
|
Print View
|
Print CSS
|
| Mobile Friendly |
Unknown
|
Yes
|
Unknown
|
| Themes & Skins |
Optional
|
No
|
Yes
|
| RSS Feeds |
No
|
No
|
Yes
|
| ATOM Feeds |
No
|
Yes
|
Plugin
|
| Abbreviations |
No
|
Yes
|
Patch
|
| Auto-TOC |
No
|
Yes
|
Yes
|
| Raw Export |
No
|
Yes
|
Yes
|
| HTML Export |
No
|
Yes
|
Yes
|
| XML export |
No
|
No
|
Patch
|
| PDF Export |
No
|
No
|
No
|
| Office Export |
Unknown
|
Unknown
|
No
|
| Media and Files | Friki | Instiki | WikkaWiki |
| File Attachments |
No
|
Yes
|
Yes
|
| Media Revisions |
No
|
No
|
No
|
| Embedded Flash |
No
|
No
|
Yes
|
| Embedded Video |
No
|
Yes
|
No
|
| Image Editing |
Unknown
|
No
|
No
|
| SVG Editing |
Unknown
|
Yes
|
No
|
| MindMap Editing |
Unknown
|
No
|
Yes
|
| Media Search |
No
|
No
|
No
|
| Extras | Friki | Instiki | WikkaWiki |
| Calendar |
Unknown
|
No
|
Plugin
|
| Image Galleries |
Unknown
|
No
|
Plugin
|
| Presentations |
Unknown
|
Unknown
|
No
|
| Forums |
Unknown
|
No
|
No
|
| Blogs |
Unknown
|
No
|
Plugin
|
| Ticket System |
Unknown
|
No
|
No
|
| Chat |
Unknown
|
Unknown
|
No
|
| Syntax Examples | Friki | Instiki | WikkaWiki |
| 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]] |
| External Link |
|
[another site](http://example.com) |
http://wikkawiki.org [[http://wikkawiki.org|Wikka Wiki]] [[Wikipedia:WikkaWiki]] |
| Headlines |
|
#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'' |
**bold** |
**bold** |
| Italics Format |
''italic'' |
_italic_, *italic* |
//italic// |
| Underline Format |
|
underlined
{: style='text-decoration:underlined'} |
__underlined__ |
| Monospace Format |
monospace |
`monospace` |
##monospaced## |
| Strikethrough Format |
|
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'} |
++Strike through text++ |
| Superscript Format |
|
<sup>superscript</sup> |
""<sup>Superscript</sup>"" |
| Subscript Format |
|
<sub>subscript</sub> |
""<sub>Subscript</sub>"" |
| Images |
http://stringtree.org/friki/logo.gif |
, [[image.jpg|alt text:pic]] |
http://foo.bar/bar.jpg
{{image url="local.jpg"}}
{{image url="http://foo.bar/bar.jpg"}} |
| 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>> |
| Text Indentation |
: indented |
p
{: style='margin-left:3em'}
> blockquote |
(4 spaces or a ~ can replace a tab) indented ~indented |
| Bulleted Lists |
* first * second |
* Item 1 ** Item 1.1 * Item 2 |
(4 spaces or a ~ can replace a tab) ~- Item 1 ~~- Item 1.1 ~- Item 2 |
| Numbered Lists |
1. first 1. second |
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) |
| Definition Lists |
title: description |
term : definition |
""<dl> <dt>Coffee</dt> <dd>Black hot drink</dd> <dt>Milk</dt> <dd>White cold drink</dd> </dl>"" |
| Horizontal Rule |
|
*** |
---- |
| remove Friki | remove Instiki | remove WikkaWiki |