| General Features | Instiki | PmWiki | WikkaWiki |
|---|---|---|---|
| Version |
0.30.0
|
2.6.0
|
1.4.2
|
| Last Release Date |
2019-03-01 (7 years ago)
|
2026-05-16 (1 month ago)
|
2020-04-20 (6 years ago)
|
| Last Update here |
2019-03-04 (7 years ago)
|
2026-05-16 (1 month ago)
|
2020-04-20 (6 years ago)
|
| Author |
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
|
Petko Yotov (Original author: Patrick R. Michaud)
|
Wikka Development Team
|
| URL | |||
| Free and Open Source |
Yes
|
Yes
|
Yes
|
| License |
Ruby's
|
GPL2+
|
GPL
|
| Programming Language |
Ruby on Rails
|
PHP
|
PHP
|
| Data Storage |
Database
|
Files
|
Database
|
| License Cost/ Fee |
0
|
0
|
0
|
| Development status |
Mature
|
Mature
|
Mature
|
| Intended Audience |
general, education
|
All
|
Individual users (PIM/website backend), development teams (software documentation/knowledge base), organizations and companies (intranet/public website backend)
|
| System Requirements | Instiki | PmWiki | WikkaWiki |
| Operating System |
UNIX, Windows, MacOS X
|
Linux, UNIX, Windows, MacOS X, probably others
|
any (platform-independent)
|
| Root Access |
No
|
No
|
No
|
| Webserver |
Thin (included), or Apache/NGinx (via Passenger)
|
Apache, IIS, anything with PHP support. Can also be run with PHP's built-in webserver.
|
any server with PHP/MySQL support
|
| Other Requirements |
Ruby 2.0-2.6
|
none
|
mod_rewrite (optional)
|
| Datastorage | Instiki | PmWiki | WikkaWiki |
| Text Files |
No
|
Yes
|
No
|
| MySQL |
Yes
|
Plugin
|
Yes
|
| PostgreSQL |
Yes
|
No
|
No
|
| Oracle |
Plugin
|
No
|
No
|
| SQLite |
Yes
|
Plugin
|
Yes
|
| BerkeleyDB |
No
|
No
|
No
|
| RCS |
No
|
Plugin
|
No
|
| Other |
Any Rails-compatible back-end datastore can be used.
|
Compressed, XML and/or ephemeral files (modules). Can provide custom data backends.
|
No
|
| Security/Anti-Spam | Instiki | PmWiki | WikkaWiki |
| Page Permissions |
Yes
|
Yes
|
Yes
|
| ACL |
No
|
Yes
|
Yes
|
| Authentication Backends |
Internal: per page, per group, per user, per user group. External: .htpasswd, LDAP, Active Directory. Plugins: Mailman, forums w/MySQL, oAuth, custom possible.
|
Active Directory (patch)
|
|
| Host Blocking |
Yes
|
Optional
|
Yes
|
| Mail Encryption |
Unknown
|
Optional
|
No
|
| nofollow |
Unknown
|
Yes
|
Yes
|
| Blacklist |
Yes
|
Optional
|
Yes
|
| CAPTCHA |
Unknown
|
Plugin
|
Plugin
|
| Delayed Indexing |
Unknown
|
Optional
|
No
|
| Development/Support | Instiki | PmWiki | WikkaWiki |
| # of Consultants | |||
| Preconfigured Hosting |
No
|
Yes
|
Yes
|
| Code Repository | |||
| Issue Tracker | |||
| Mailing List | |||
| Support Forum | |||
| Chat Channel | |||
| Stars on GitHub |
506 ⭐
|
N/A
|
42 ⭐
|
| Common Features | Instiki | PmWiki | WikkaWiki |
| Preview |
No
|
Yes
|
Yes
|
| Minor Changes |
Yes
|
Yes
|
No
|
| 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 | PmWiki | WikkaWiki |
| Unicode Support |
Yes
|
Yes
|
Yes
|
| Right-to-Left Support |
Yes
|
Optional
|
Yes
|
| Interface Languages |
1
English |
38
Arabic, Bulgarian, Breton, Catalan, Czech, Danish, German, Greek, English, Esperanto, Spanish, Persian, Finnish, French, Hungarian, Indonesian, Italian, Japanese, Lithuanian, Latvian, Lettish, Macedonian, Dutch, Norwegian, Polish, Portuguese, Brazilian Portuguese, Romanian, Russian, Slovak, Slovenian, Albanian, Swedish, Tamil, Turkish, Ukrainian, Vietnamese, Chinese, Chinese Traditional |
0
|
| Email notification |
No
|
Optional
|
Patch
|
| Comments |
No
|
Discussion Pages
|
Threaded
|
| Categories |
Yes
|
Yes
|
Yes
|
| Namespaces |
No
|
Yes
|
No
|
| Conflict Handling |
Page Locking
|
Conflict Resolution
|
Page Locking
|
| Concurrent Editing |
Unknown
|
Yes
|
Yes
|
| Search |
Full Text
|
Full Text
|
Full Text
|
| Wiki Farming |
Yes
|
Yes
|
No
|
| Structured Data |
No
|
Yes
|
Plugin
|
| Links | Instiki | PmWiki | WikkaWiki |
| CamelCase |
Optional
|
Optional
|
Yes
|
| Freelinks |
Yes
|
Yes
|
Patch
|
| Backlinks |
Yes
|
Yes
|
Yes
|
| InterWiki |
Yes
|
Yes
|
Yes
|
| SisterWiki |
No
|
Plugin
|
No
|
| Image Links |
Yes
|
Yes
|
Yes
|
| Windows Shares |
No
|
Yes
|
No
|
| Page Redirects |
Yes
|
Yes
|
Patch
|
| Syntax Features | Instiki | PmWiki | WikkaWiki |
| HTML Tags |
All
|
Plugin
|
Some
|
| Math formulas |
Yes
|
Plugin
|
Plugin
|
| Tables |
simple + complex
|
simple + complex
|
simple + complex
|
| CREOLE support |
No
|
Optional
|
No
|
| Markdown Support |
Yes
|
Plugin
|
No
|
| Textile Support |
Yes
|
No
|
No
|
| BBCode Support |
No
|
Plugin
|
No
|
| Emoticon Images |
No
|
Plugin
|
No
|
| Syntax Highlighting |
Yes
|
Optional
|
Yes
|
| Footnotes |
Yes
|
Plugin
|
Plugin
|
| Quoting |
Yes
|
Plugin
|
Yes
|
| Internal Comments |
Yes
|
Yes
|
Yes
|
| Custom styles |
Yes
|
Yes
|
Yes
|
| FAQ Tags |
No
|
Yes
|
No
|
| Scripting |
None
|
MarkupExpressions (core, many add-ons). PageLists with templates (core structured data scripting). WikiSh (plugin), Data forms (optional)
|
Extensibility through drop-in plugins
|
| Content Includes |
Yes
|
Yes
|
Yes
|
| Feed Aggregation |
No
|
Plugin
|
Yes
|
| Usability | Instiki | PmWiki | WikkaWiki |
| Section Editing |
No
|
Plugin
|
No
|
| Page Templates |
No
|
Yes
|
Yes
|
| Double-Click Edit |
No
|
Plugin
|
Yes
|
| Toolbar |
No
|
Optional
|
Yes
|
| WYSIWYG Editing |
No
|
Plugin
|
Plugin
|
| Access Keys |
Yes
|
Yes
|
Patch
|
| Auto Signature |
Yes
|
Yes
|
Patch
|
| Statistics | Instiki | PmWiki | WikkaWiki |
| Recent Changes |
Yes
|
Yes
|
Yes
|
| Wanted Pages |
Yes
|
Optional
|
Yes
|
| Orphaned Pages |
Yes
|
Optional
|
Yes
|
| Most/Least Popular |
No
|
No
|
Patch
|
| Recent Visitors |
No
|
Plugin
|
Patch
|
| Analysis |
No
|
Plugin
|
Yes
|
| Output | Instiki | PmWiki | WikkaWiki |
| Printer Friendly |
Print View
|
Print View
|
Print CSS
|
| Mobile Friendly |
Yes
|
Yes
|
Unknown
|
| Themes & Skins |
No
|
Yes
|
Yes
|
| RSS Feeds |
No
|
Optional
|
Yes
|
| ATOM Feeds |
Yes
|
Optional
|
Plugin
|
| Abbreviations |
Yes
|
Plugin
|
Patch
|
| Auto-TOC |
Yes
|
Optional
|
Yes
|
| Raw Export |
Yes
|
Yes
|
Yes
|
| HTML Export |
Yes
|
Plugin
|
Yes
|
| XML export |
No
|
Plugin
|
Patch
|
| PDF Export |
No
|
Plugin
|
No
|
| Office Export |
Unknown
|
Plugin
|
No
|
| Media and Files | Instiki | PmWiki | WikkaWiki |
| File Attachments |
Yes
|
Optional
|
Yes
|
| Media Revisions |
No
|
Optional
|
No
|
| Embedded Flash |
No
|
Plugin
|
Yes
|
| Embedded Video |
Yes
|
Plugin
|
No
|
| Image Editing |
No
|
Plugin
|
No
|
| SVG Editing |
Yes
|
Plugin
|
No
|
| MindMap Editing |
No
|
Plugin
|
Yes
|
| Media Search |
No
|
Filenames only
|
No
|
| Extras | Instiki | PmWiki | WikkaWiki |
| Calendar |
No
|
Plugin
|
Plugin
|
| Image Galleries |
No
|
Plugin
|
Plugin
|
| Presentations |
Unknown
|
Plugin
|
No
|
| Forums |
No
|
Plugin
|
No
|
| Blogs |
No
|
Plugin
|
Plugin
|
| Ticket System |
No
|
Plugin
|
No
|
| Chat |
Unknown
|
No
|
No
|
| Syntax Examples | Instiki | PmWiki | WikkaWiki |
| Internal Link |
[[Some Page]] [[Some Page|anchor text]] [[Some Page#anchor]] [[Some Page#anchor|anchor text]] |
[[page name]] [[page name | link text]] [[link text -> page name]] [[#anchor]] [[#anchor|link to anchor]] [[page name #anchor]] |
CamelCase [[forced]] [[forced|This is a link]] [[forced |日本語]] |
| External Link |
[another site](http://example.com) |
http://.... [[http://... | link text]] [[link text -> http://...]] |
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 !!#anchor Level 2 !!! Level 3 |
====== 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+} |
__underlined__ |
| Monospace Format |
`monospace` |
@@monospace@@ |
##monospaced## |
| Strikethrough Format |
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'} |
{-strikethrough-} |
++Strike through text++ |
| Superscript Format |
<sup>superscript</sup> |
'^superscript^' |
""<sup>Superscript</sup>"" |
| Subscript Format |
<sub>subscript</sub> |
'_subscript_' |
""<sub>Subscript</sub>"" |
| Images |
, [[image.jpg|alt text:pic]] |
https://foo.bar/foo.jpg Attach:foo.jpg Attach:foo.jpg"alt/title text" | Caption |
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% centered text %right% right aligned %lfloat% left floating text %rfloat% right floating text %rframe% right floating frame %lframe% left floating frame |
@@Center text@@ <<left floated<< >>right floated>> |
| Text Indentation |
p
{: style='margin-left:3em'}
> blockquote |
-> indented text --> more indentation -< hanging text --< more indentation |
(4 spaces or a ~ can replace a tab) indented ~indented |
| Bulleted Lists |
* Item 1 ** Item 1.1 * Item 2 |
* Item 1 ** Item 1.1 * Item 2 alternatively, indented: * 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. Item 1 1. Item 1.1 2. Item 2 |
# Item 1 ## Item 1.1 # Item 2 alternatively, indented: # Item 1 # Item 1.1 # 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 |
term : definition |
: term : definition |
""<dl> <dt>Coffee</dt> <dd>Black hot drink</dd> <dt>Milk</dt> <dd>White cold drink</dd> </dl>"" |
| Horizontal Rule |
*** |
---- |
---- |
| remove Instiki | remove PmWiki | remove WikkaWiki |