| General Features | PmWiki | ikiwiki | Hatta |
|---|---|---|---|
| Version |
2.6.0
|
2.67
|
1.6.6
|
| Last Release Date |
2026-05-16 (29 days ago)
|
2008-10-17 (17 years ago)
|
2015-08-29 (10 years ago)
|
| Last Update here |
2026-05-16 (29 days ago)
|
2008-10-28 (17 years ago)
|
2015-08-29 (10 years ago)
|
| Author |
Petko Yotov (Original author: Patrick R. Michaud)
|
Joey Hess and the ikiwiki community
|
Radomir Dopieralski
|
| URL | |||
| Free and Open Source |
Yes
|
Yes
|
Yes
|
| License |
GPL2+
|
GPL
|
GPL v2
|
| Programming Language |
PHP
|
Perl
|
Python
|
| Data Storage |
Files
|
Files, RCS
|
Files, RCS
|
| License Cost/ Fee |
0
|
0
|
0
|
| Development status |
Mature
|
Mature
|
Mature
|
| Intended Audience |
All
|
Anyone
|
|
| System Requirements | PmWiki | ikiwiki | Hatta |
| Operating System |
Linux, UNIX, Windows, MacOS X, probably others
|
Any
|
Linux, Unix, Windows, MacOSX
|
| Root Access |
No
|
No
|
No
|
| Webserver |
Apache, IIS, anything with PHP support. Can also be run with PHP's built-in webserver.
|
Any, or none
|
Standalone, WSGI, FastCGI, CGI
|
| Other Requirements |
none
|
Mercurial
|
|
| Datastorage | PmWiki | ikiwiki | Hatta |
| Text Files |
Yes
|
Yes
|
Yes
|
| MySQL |
Plugin
|
No
|
No
|
| PostgreSQL |
No
|
No
|
No
|
| Oracle |
No
|
No
|
No
|
| SQLite |
Plugin
|
No
|
Optional
|
| BerkeleyDB |
No
|
No
|
No
|
| RCS |
Plugin
|
Yes
|
Yes
|
| Other |
Compressed, XML and/or ephemeral files (modules). Can provide custom data backends.
|
Plain text files in Mercurial repository, with SQLite index
|
|
| Security/Anti-Spam | PmWiki | ikiwiki | Hatta |
| Page Permissions |
Yes
|
Yes
|
Yes
|
| ACL |
Yes
|
Yes
|
No
|
| 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.
|
Built-in, HTTP auth, OpenID; extensible via plugins
|
n/a
|
| Host Blocking |
Optional
|
Yes
|
No
|
| Mail Encryption |
Optional
|
Yes
|
Yes
|
| nofollow |
Yes
|
No
|
No
|
| Blacklist |
Optional
|
Yes
|
No
|
| CAPTCHA |
Plugin
|
No
|
Optional
|
| Delayed Indexing |
Optional
|
No
|
No
|
| Development/Support | PmWiki | ikiwiki | Hatta |
| # of Consultants | |||
| Preconfigured Hosting |
Yes
|
No
|
No
|
| Code Repository | |||
| Issue Tracker | |||
| Mailing List | |||
| Support Forum | |||
| Chat Channel |
#wiki at freenode.net
|
||
| Stars on GitHub |
N/A
|
N/A
|
N/A
|
| Common Features | PmWiki | ikiwiki | Hatta |
| Preview |
Yes
|
Yes
|
Yes
|
| Minor Changes |
Yes
|
No
|
Yes
|
| Change Summary |
Yes
|
Yes
|
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 |
Yes
|
Yes
|
No
|
| Special Features | PmWiki | ikiwiki | Hatta |
| Unicode Support |
Yes
|
Yes
|
Yes
|
| Right-to-Left Support |
Optional
|
Yes
|
Optional
|
| Interface Languages |
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 |
1
English |
15
Arabic, Czech, Danish, German, Greek, English, Spanish, Estonian, Finnish, French, Hungarian, Japanese, Polish, Russian, Swedish |
| Email notification |
Optional
|
Yes
|
No
|
| Comments |
Discussion Pages
|
Discussion Pages
|
No
|
| Categories |
Yes
|
Plugin
|
Yes
|
| Namespaces |
Yes
|
Yes
|
Optional
|
| Conflict Handling |
Conflict Resolution
|
Conflict Resolution
|
Conflict Resolution
|
| Concurrent Editing |
Yes
|
Unknown
|
Unknown
|
| Search |
Full Text
|
Full Text
|
Full Text
|
| Wiki Farming |
Yes
|
Yes
|
Optional
|
| Structured Data |
Yes
|
Unknown
|
No
|
| Links | PmWiki | ikiwiki | Hatta |
| CamelCase |
Optional
|
Plugin
|
Optional
|
| Freelinks |
Yes
|
Yes
|
Yes
|
| Backlinks |
Yes
|
Yes
|
Yes
|
| InterWiki |
Yes
|
Plugin
|
No
|
| SisterWiki |
Plugin
|
Plugin
|
No
|
| Image Links |
Yes
|
Yes
|
Yes
|
| Windows Shares |
Yes
|
Yes
|
No
|
| Page Redirects |
Yes
|
Unknown
|
No
|
| Syntax Features | PmWiki | ikiwiki | Hatta |
| HTML Tags |
Plugin
|
Optional
|
None
|
| Math formulas |
Plugin
|
Plugin
|
Optional
|
| Tables |
simple + complex
|
simple + complex
|
simple
|
| CREOLE support |
Optional
|
No
|
Yes
|
| Markdown Support |
Plugin
|
Yes
|
No
|
| Textile Support |
No
|
Plugin
|
No
|
| BBCode Support |
Plugin
|
No
|
No
|
| Emoticon Images |
Plugin
|
Plugin
|
Optional
|
| Syntax Highlighting |
Optional
|
Plugin
|
Optional
|
| Footnotes |
Plugin
|
No
|
No
|
| Quoting |
Plugin
|
Yes
|
Yes
|
| Internal Comments |
Yes
|
Yes
|
No
|
| Custom styles |
Yes
|
Yes
|
Yes
|
| FAQ Tags |
Yes
|
Yes
|
No
|
| Scripting |
MarkupExpressions (core, many add-ons). PageLists with templates (core structured data scripting). WikiSh (plugin), Data forms (optional)
|
safe subset of HTML::Template supported via template plugin
|
JavaScript
|
| Content Includes |
Yes
|
Plugin
|
No
|
| Feed Aggregation |
Plugin
|
Plugin
|
No
|
| Usability | PmWiki | ikiwiki | Hatta |
| Section Editing |
Plugin
|
No
|
No
|
| Page Templates |
Yes
|
Yes
|
No
|
| Double-Click Edit |
Plugin
|
No
|
Yes
|
| Toolbar |
Optional
|
No
|
No
|
| WYSIWYG Editing |
Plugin
|
No
|
No
|
| Access Keys |
Yes
|
No
|
No
|
| Auto Signature |
Yes
|
No
|
No
|
| Statistics | PmWiki | ikiwiki | Hatta |
| Recent Changes |
Yes
|
Yes
|
Yes
|
| Wanted Pages |
Optional
|
Plugin
|
Yes
|
| Orphaned Pages |
Optional
|
Plugin
|
Yes
|
| Most/Least Popular |
No
|
No
|
No
|
| Recent Visitors |
Plugin
|
No
|
No
|
| Analysis |
Plugin
|
No
|
No
|
| Output | PmWiki | ikiwiki | Hatta |
| Printer Friendly |
Print View
|
Print CSS
|
Print CSS
|
| Mobile Friendly |
Yes
|
Yes
|
Yes
|
| Themes & Skins |
Yes
|
Yes
|
Optional
|
| RSS Feeds |
Optional
|
Plugin
|
No
|
| ATOM Feeds |
Optional
|
Plugin
|
Yes
|
| Abbreviations |
Plugin
|
No
|
No
|
| Auto-TOC |
Optional
|
Plugin
|
No
|
| Raw Export |
Yes
|
Yes
|
Yes
|
| HTML Export |
Plugin
|
Yes
|
No
|
| XML export |
Plugin
|
No
|
No
|
| PDF Export |
Plugin
|
No
|
No
|
| Office Export |
Plugin
|
Unknown
|
Unknown
|
| Media and Files | PmWiki | ikiwiki | Hatta |
| File Attachments |
Optional
|
Yes
|
Yes
|
| Media Revisions |
Optional
|
Yes
|
Yes
|
| Embedded Flash |
Plugin
|
Optional
|
No
|
| Embedded Video |
Plugin
|
Optional
|
No
|
| Image Editing |
Plugin
|
No
|
No
|
| SVG Editing |
Plugin
|
No
|
No
|
| MindMap Editing |
Plugin
|
No
|
No
|
| Media Search |
Filenames only
|
Filenames only
|
Filenames only
|
| Extras | PmWiki | ikiwiki | Hatta |
| Calendar |
Plugin
|
Plugin
|
No
|
| Image Galleries |
Plugin
|
Plugin
|
No
|
| Presentations |
Plugin
|
Unknown
|
Unknown
|
| Forums |
Plugin
|
Unknown
|
No
|
| Blogs |
Plugin
|
Yes
|
No
|
| Ticket System |
Plugin
|
Yes
|
No
|
| Chat |
No
|
Unknown
|
Unknown
|
| Syntax Examples | PmWiki | ikiwiki | Hatta |
| Internal Link |
[[page name]] [[page name | link text]] [[link text -> page name]] [[#anchor]] [[#anchor|link to anchor]] [[page name #anchor]] |
[[internal]] |
[[link]] [[link|label]] |
| External Link |
http://.... [[http://... | link text]] [[link text -> http://...]] |
[link text](http://example.org) |
http://example.com
[[http://example.com]]
[[http://example.com|label]]
[[http://example.com|{{image}}]] |
| Headlines |
! Level 1 !!#anchor Level 2 !!! Level 3 |
Two syntaxes: # heading 1 ## heading 2 ### heading 3 heading 1 ========= heading 2 --------- |
= h1 = == h2 == ... ===== h5 ===== |
| Bold Format |
'''bold''' |
**bold** __bold__ |
**bold** |
| Italics Format |
''italic'' |
*emphasized* _emphasized_ |
//italic// |
| Underline Format |
{+underlined+} |
via HTML: <u>underlined</u> |
n/a |
| Monospace Format |
@@monospace@@ |
`inline monospace` indented block of monospaced text tab-indented block |
{{{verbatim}}} |
| Strikethrough Format |
{-strikethrough-} |
via HTML: <del>deleted</del> |
n/a |
| Superscript Format |
'^superscript^' |
via HTML: x<sup>2</sup> |
n/a |
| Subscript Format |
'_subscript_' |
via HTML: a<sub>1</sub> |
n/a |
| Images |
https://foo.bar/foo.jpg Attach:foo.jpg Attach:foo.jpg"alt/title text" | Caption |
  |
{{image}}
{{image|alt}} |
| Aligning Text |
%center% centered text %right% right aligned %lfloat% left floating text %rfloat% right floating text %rframe% right floating frame %lframe% left floating frame |
|
n/a |
| Text Indentation |
-> indented text --> more indentation -< hanging text --< more indentation |
|
n/a |
| Bulleted Lists |
* Item 1 ** Item 1.1 * Item 2 alternatively, indented: * item 1 * item 1.1 * item 2 |
* item 1 * item 2 * item 2.1 * item 2.2 |
* list ** sublist |
| Numbered Lists |
# Item 1 ## Item 1.1 # Item 2 alternatively, indented: # Item 1 # Item 1.1 # Item 2 |
1. item 1 2. item 2 1. item 1.1 42. the value doesn't matter 1. any value works |
n/a |
| Definition Lists |
: term : definition |
via HTML: <dl> <dt>term</dt> <dd>definition</dd> </dl> |
n/a |
| Horizontal Rule |
---- |
--- *** ___ ------------------ Any number > 3 - - - - - - - - - - spaces don't matter |
---- |
| remove PmWiki | remove ikiwiki | remove Hatta |