Foswiki vs. ikiwiki vs. PmWiki

General Features Foswiki ikiwiki PmWiki
Version
2.1.11
2.67
2.6.0
Last Release Date
2026-03-15 (2 months ago)
2008-10-17 (17 years ago)
2026-05-16 (28 days ago)
Last Update here
2026-03-15 (2 months ago)
2008-10-28 (17 years ago)
2026-05-16 (28 days ago)
Author
Foswiki Community
Joey Hess and the ikiwiki community
Petko Yotov (Original author: Patrick R. Michaud)
URL
Free and Open Source
Yes
Yes
Yes
License
GPL
GPL
GPL2+
Programming Language
Perl
Perl
PHP
Data Storage
Files, RCS
Files, RCS
Files
License Cost/ Fee
$0
0
0
Development status
Mature
Mature
Mature
Intended Audience
Enterprise, Corporate, Business, Intranets, Personal use, Community building, Educational, Intranet, Extranet
Anyone
All
System Requirements Foswiki ikiwiki PmWiki
Operating System
Linux, Windows, OS-X and others
Any
Linux, UNIX, Windows, MacOS X, probably others
Root Access
No
No
No
Webserver
Apache, Lighttpd, Nginx, or any other supporting (F)CGI
Any, or none
Apache, IIS, anything with PHP support. Can also be run with PHP's built-in webserver.
Other Requirements
RCS (optional), cron/scheduler, fgrep, egrep; Plugins may have additional dependencies
none
Datastorage Foswiki ikiwiki PmWiki
Text Files
Yes
Yes
Yes
MySQL
No
No
Plugin
PostgreSQL
No
No
No
Oracle
No
No
No
SQLite
No
No
Plugin
BerkeleyDB
No
No
No
RCS
Yes
Yes
Plugin
Other
caching of content into database using plugins
Compressed, XML and/or ephemeral files (modules). Can provide custom data backends.
Security/Anti-Spam Foswiki ikiwiki PmWiki
Page Permissions
Yes
Yes
Yes
ACL
Yes
Yes
Yes
Authentication Backends
Internal authentication; anything Apache supports such as LDAP, NIS, AD, Kerberos
Built-in, HTTP auth, OpenID; extensible via plugins
Internal: per page, per group, per user, per user group. External: .htpasswd, LDAP, Active Directory. Plugins: Mailman, forums w/MySQL, oAuth, custom possible.
Host Blocking
Plugin
Yes
Optional
Mail Encryption
Yes
Yes
Optional
nofollow
Yes
No
Yes
Blacklist
Plugin
Yes
Optional
CAPTCHA
Plugin
No
Plugin
Delayed Indexing
Plugin
No
Optional
Development/Support Foswiki ikiwiki PmWiki
# of Consultants
Preconfigured Hosting
Yes
No
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
Stars on GitHub
118 ⭐
N/A
N/A
Common Features Foswiki ikiwiki PmWiki
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
Yes
Special Features Foswiki ikiwiki PmWiki
Unicode Support
Yes
Yes
Yes
Right-to-Left Support
No
Yes
Optional
Interface Languages
22
Bulgarian, Czech, Danish, German, Greek, English, Spanish, Finnish, French, Italian, Japanese, Korean, Dutch, Norwegian, Polish, Portuguese, Brazilian Portuguese, Russian, Swedish, Ukrainian, Chinese, Chinese Traditional
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
Email notification
Yes
Yes
Optional
Comments
Plugin
Discussion Pages
Discussion Pages
Categories
Plugin
Plugin
Yes
Namespaces
Yes
Yes
Yes
Conflict Handling
Page Locking
Conflict Resolution
Conflict Resolution
Concurrent Editing
No
Unknown
Yes
Search
Full Text
Full Text
Full Text
Wiki Farming
Plugin
Yes
Yes
Structured Data
Yes
Unknown
Yes
Links Foswiki ikiwiki PmWiki
CamelCase
Yes
Plugin
Optional
Freelinks
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Plugin
Plugin
Yes
SisterWiki
Plugin
Plugin
Plugin
Image Links
Yes
Yes
Yes
Windows Shares
Plugin
Yes
Yes
Page Redirects
Plugin
Unknown
Yes
Syntax Features Foswiki ikiwiki PmWiki
HTML Tags
All
Optional
Plugin
Math formulas
Plugin
Plugin
Plugin
Tables
simple + complex
simple + complex
simple + complex
CREOLE support
Plugin
No
Optional
Markdown Support
Plugin
Yes
Plugin
Textile Support
Plugin
Plugin
No
BBCode Support
Plugin
No
Plugin
Emoticon Images
Plugin
Plugin
Plugin
Syntax Highlighting
Plugin
Plugin
Optional
Footnotes
Plugin
No
Plugin
Quoting
Yes
Yes
Plugin
Internal Comments
Yes
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
Yes
Yes
Yes
Scripting
JavaScript; Topic Markup Language
safe subset of HTML::Template supported via template plugin
MarkupExpressions (core, many add-ons). PageLists with templates (core structured data scripting). WikiSh (plugin), Data forms (optional)
Content Includes
Yes
Plugin
Yes
Feed Aggregation
Plugin
Plugin
Plugin
Usability Foswiki ikiwiki PmWiki
Section Editing
Plugin
No
Plugin
Page Templates
Yes
Yes
Yes
Double-Click Edit
Plugin
No
Plugin
Toolbar
Plugin
No
Optional
WYSIWYG Editing
Plugin
No
Plugin
Access Keys
Yes
No
Yes
Auto Signature
Yes
No
Yes
Statistics Foswiki ikiwiki PmWiki
Recent Changes
Yes
Yes
Yes
Wanted Pages
No
Plugin
Optional
Orphaned Pages
Plugin
Plugin
Optional
Most/Least Popular
Yes
No
No
Recent Visitors
Plugin
No
Plugin
Analysis
Yes
No
Plugin
Output Foswiki ikiwiki PmWiki
Printer Friendly
Print View
Print CSS
Print View
Mobile Friendly
Yes
Yes
Yes
Themes & Skins
Yes
Yes
Yes
RSS Feeds
Yes
Plugin
Optional
ATOM Feeds
Yes
Plugin
Optional
Abbreviations
Plugin
No
Plugin
Auto-TOC
Yes
Plugin
Optional
Raw Export
Yes
Yes
Yes
HTML Export
Yes
Yes
Plugin
XML export
Plugin
No
Plugin
PDF Export
Plugin
No
Plugin
Office Export
Plugin
Unknown
Plugin
Media and Files Foswiki ikiwiki PmWiki
File Attachments
Yes
Yes
Optional
Media Revisions
Yes
Yes
Optional
Embedded Flash
Plugin
Optional
Plugin
Embedded Video
Plugin
Optional
Plugin
Image Editing
Plugin
No
Plugin
SVG Editing
Plugin
No
Plugin
MindMap Editing
Plugin
No
Plugin
Media Search
Contents
Filenames only
Filenames only
Extras Foswiki ikiwiki PmWiki
Calendar
Plugin
Plugin
Plugin
Image Galleries
Plugin
Plugin
Plugin
Presentations
Plugin
Unknown
Plugin
Forums
Plugin
Unknown
Plugin
Blogs
Plugin
Yes
Plugin
Ticket System
Plugin
Yes
Plugin
Chat
No
Unknown
No
Syntax Examples Foswiki ikiwiki PmWiki
Internal Link
WikiWord autolink
Otherweb.WikiWord
[[Spaced text]]
[[WikiWord][label]]
[[internal]]
[[page name]]
[[page name | link text]]
[[link text -> page name]]
[[#anchor]]
[[#anchor|link to anchor]]
[[page name #anchor]]
External Link
External Link
http://foswiki.org/ autolink
[[http://foswiki.org/][label]]
[link text](http://example.org)
http://....
[[http://... | link text]]
[[link text -> http://...]]
Headlines
---+ Level 1
---++ Level 2
---+++ Level 3
---++++ Level 4
---+++++ Level 5
---++++++ Level 6
Two syntaxes:

# heading 1
## heading 2
### heading 3

heading 1
=========

heading 2
---------
! Level 1
!!#anchor Level 2
!!! Level 3
Bold Format
*bold*
**bold**
__bold__
'''bold'''
Italics Format
_italic_
*emphasized*
_emphasized_
''italic''
Underline Format
<u>underline</u>
via HTML: <u>underlined</u>
{+underlined+}
Monospace Format
=monospaced text= and
<verbatim>
multi line text
</verbatim>
`inline monospace`

indented block of
monospaced text

tab-indented
block
@@monospace@@
Strikethrough Format
<strike>strikethrough</strike>
via HTML: <del>deleted</del>
{-strikethrough-}
Superscript Format
<sup>superscript</sup>
via HTML: x<sup>2</sup>
'^superscript^'
Subscript Format
<sub>subscript</sub>
via HTML: a<sub>1</sub>
'_subscript_'
Images
%ATTACHURL%/image.png
http://any.domain/image.png
%IMAGE{"image.png"}%
![alt text](internal/image)
![alt text](http://example.org/external/image)
https://foo.bar/foo.jpg
Attach:foo.jpg
Attach:foo.jpg"alt/title text" | Caption
Aligning Text
| left |   center   |   right |
or HTML
or CSS
%center% centered text
%right% right aligned
%lfloat% left floating text
%rfloat% right floating text
%rframe% right floating frame
%lframe% left floating frame
Text Indentation
<blockquote>
multi line text
</blockquote>
-> indented text
--> more indentation
-< hanging text
--< more indentation
Bulleted Lists
* Item 1
* Item 1.1
* Item 2
* item 1
* item 2
* item 2.1
* item 2.2
* Item 1
** Item 1.1
* Item 2
alternatively, indented:
* item 1
* item 1.1
* item 2
Numbered Lists
1. Item 1
a. Item 1.a
1. Item 2
1. item 1
2. item 2
1. item 1.1
42. the value doesn't matter
1. any value works
# Item 1
## Item 1.1
# Item 2
alternatively, indented:
# Item 1
# Item 1.1
# Item 2
Definition Lists
$ Term: Definition
via HTML:
<dl>
<dt>term</dt>
<dd>definition</dd>
</dl>
: term : definition
Horizontal Rule
---
---
***
___
------------------
Any number > 3
- - - - - - - - - -
spaces don't matter
----
remove Foswiki remove ikiwiki remove PmWiki