Instiki vs. XWiki vs. Zwiki

General Features Instiki XWiki Zwiki
Version
0.30.0
18.5.0
0.61
Last Release Date
2019-03-01 (7 years ago)
2026-06-29 (7 days ago)
2008-10-28 (17 years ago)
Last Update here
2019-03-04 (7 years ago)
2026-06-29 (7 days ago)
2008-10-30 (17 years ago)
Author
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
XWiki Development Team
Simon Michael & the Zwiki dev team
URL
Free and Open Source
Yes
Yes
Yes
License
Ruby's
LGPL + Free hosting on https://myxwiki.org for individuals/non profit
GPLv2
Programming Language
Ruby on Rails
Java
Python
Data Storage
Database
Database, RCS
Database
License Cost/ Fee
0
0
0
Development status
Mature
Mature
Mature
Intended Audience
general, education
Enterprise, Workgroups, Developers
anyone able to install or get access to a zope server
Hosting Features Instiki XWiki Zwiki
Storage Quota
N/A
N/A
Bandwidth Quota
N/A
N/A
Other Limits
N/A
N/A
Topic Restrictions
N/A
N/A
Corporate Branding
N/A
Yes
N/A
Own Domain
N/A
Yes
N/A
Ads allowed
N/A
No
N/A
System Requirements Instiki XWiki Zwiki
Operating System
UNIX, Windows, MacOS X
Any platform supporting Java 21 or greater
any
Root Access
No
No
No
Webserver
Thin (included), or Apache/NGinx (via Passenger)
Servlet 5.0+
Zope
Other Requirements
Ruby 2.0-2.6
Java 21, MySQL/MariaDB/PostgreSQL/HSQLDB/etc (JDBC Driver required)
Datastorage Instiki XWiki Zwiki
Text Files
No
No
Plugin
MySQL
Yes
Yes
Plugin
PostgreSQL
Yes
Yes
Plugin
Oracle
Plugin
Yes
Plugin
SQLite
Yes
No
Unknown
BerkeleyDB
No
No
Unknown
RCS
No
Plugin
Unknown
Other
Any Rails-compatible back-end datastore can be used.
JDBC Databases and in general any database supported by Hibernate; any custom implementation, as the storage is pluggable. Attachments can be saved on the filesystem
ZODB (zope object database)
Security/Anti-Spam Instiki XWiki Zwiki
Page Permissions
Yes
Yes
Yes
ACL
No
Yes
Yes
Authentication Backends
XWiki, OpenID Connect, LDAP, custom (Open API), Kerberos, NTLM, Headers, PUMA, SAML, Trusted LDAP, Sun SSO
any supported by Zope authentication plugins
Host Blocking
Yes
No
Patch
Mail Encryption
Unknown
Yes
Yes
nofollow
Unknown
No
Unknown
Blacklist
Yes
Plugin
Yes
CAPTCHA
Unknown
Yes
No
Delayed Indexing
Unknown
Yes
Patch
Development/Support Instiki XWiki Zwiki
# of Consultants
Preconfigured Hosting
No
Yes
Yes
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
#zwiki on freenode
Stars on GitHub
505 ⭐
N/A
N/A
Common Features Instiki XWiki Zwiki
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 XWiki Zwiki
Unicode Support
Yes
Yes
Yes
Right-to-Left Support
Yes
No
Optional
Interface Languages
1
English
40
Bulgarian, Catalan, Czech, Danish, German, Greek, English, Spanish, Persian, French, Galician, Hindi, Croatian, Hungarian, Indonesian, Italian, Japanese, Cambodian, Kannada, Korean, Lithuanian, Latvian, Lettish, Marathi, Dutch, Norwegian, Polish, Portuguese, Brazilian Portuguese, Romanian, Russian, Sinhalese, Slovak, Slovenian, Swedish, Turkish, Uighur, Ukrainian, Vietnamese, Chinese, Chinese Traditional
0
Email notification
No
Yes
Yes
Comments
No
Threaded
Flat
Categories
Yes
Yes
No
Namespaces
No
Yes
No
Conflict Handling
Page Locking
Conflict Resolution
Conflict Detection
Concurrent Editing
Unknown
Yes
Unknown
Search
Full Text
Full Text
Full Text
Wiki Farming
Yes
Yes
Unknown
Structured Data
No
Yes
Unknown
Links Instiki XWiki Zwiki
CamelCase
Optional
Yes
Optional
Freelinks
Yes
Yes
Optional
Backlinks
Yes
Yes
Yes
InterWiki
Yes
Yes
Yes
SisterWiki
No
Yes
No
Image Links
Yes
Yes
Yes
Windows Shares
No
Yes
Unknown
Page Redirects
Yes
Yes
Unknown
Syntax Features Instiki XWiki Zwiki
HTML Tags
All
All
Optional
Math formulas
Yes
Yes
Plugin
Tables
simple + complex
simple + complex
simple + complex
CREOLE support
No
Yes
No
Markdown Support
Yes
Yes
No
Textile Support
Yes
No
No
BBCode Support
No
No
No
Emoticon Images
No
Yes
Patch
Syntax Highlighting
Yes
Yes
No
Footnotes
Yes
Yes
Yes
Quoting
Yes
Yes
Yes
Internal Comments
Yes
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
No
Plugin
Optional
Scripting
None
velocity, groovy, ruby, jython, generic JSR223 & very powerful API
DTML
Content Includes
Yes
Yes
Yes
Feed Aggregation
No
Yes
Plugin
Usability Instiki XWiki Zwiki
Section Editing
No
Yes
No
Page Templates
No
Yes
No
Double-Click Edit
No
No
Patch
Toolbar
No
Yes
No
WYSIWYG Editing
No
Yes
Plugin
Access Keys
Yes
Yes
Yes
Auto Signature
Yes
No
Yes
Statistics Instiki XWiki Zwiki
Recent Changes
Yes
Yes
Yes
Wanted Pages
Yes
Yes
No
Orphaned Pages
Yes
Yes
Optional
Most/Least Popular
No
Yes
Optional
Recent Visitors
No
Yes
Plugin
Analysis
No
Yes
No
Output Instiki XWiki Zwiki
Printer Friendly
Print View
Print CSS
Print View
Mobile Friendly
Yes
Yes
Unknown
Themes & Skins
No
Yes
Yes
RSS Feeds
No
Yes
Yes
ATOM Feeds
Yes
Optional
No
Abbreviations
Yes
Plugin
Unknown
Auto-TOC
Yes
Optional
Plugin
Raw Export
Yes
Yes
Yes
HTML Export
Yes
Yes
Yes
XML export
No
Yes
Yes
PDF Export
No
Yes
Patch
Office Export
Unknown
Yes
Unknown
Media and Files Instiki XWiki Zwiki
File Attachments
Yes
Yes
Yes
Media Revisions
No
Yes
No
Embedded Flash
No
Yes
Yes
Embedded Video
Yes
Yes
Yes
Image Editing
No
Plugin
No
SVG Editing
Yes
Plugin
No
MindMap Editing
No
Plugin
No
Media Search
No
Contents
Filenames only
Extras Instiki XWiki Zwiki
Calendar
No
Plugin
Unknown
Image Galleries
No
Yes
Unknown
Presentations
Unknown
Plugin
Unknown
Forums
No
Plugin
Unknown
Blogs
No
Plugin
Unknown
Ticket System
No
Plugin
Unknown
Chat
Unknown
Plugin
Unknown
Syntax Examples Instiki XWiki Zwiki
Internal Link
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
XWiki supports 16+ input syntaxes (e.g. confluence, twiki, docbook, mediawiki, xwiki, markdown, etc), see http://rendering.xwiki.org/xwiki/bin/view/Main/WebHome#HSupportedSyntaxes for details.

The syntax documented below is XWiki Syntax 2.1 (http://platform.xwiki.org/xwiki/bin/view/Main/XWikiSyntax).

[[wiki syntax here>>Space.Page]]
[[Space.Page]]
(Space is optional and is the current space if not specified)
WikiName
[freeform name]
[[double-bracketed]]
External Link
[another site](http://example.com)
[[wiki syntax here>>http://www.xwiki.com]]
http://www.xwiki.com
Bare urls plus markup-specific 
link syntax. This and all 
following syntax examples depend 
on which markup mode is used for 
a page, including:

restructured text, structured 
text, wikiwikiweb, moinmoin, 
html, plaintext..
Headlines
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######
= Headline
== Subheadline
=== Sub-subheadline
==== etc..
Bold Format
**bold**
**bold**
Italics Format
_italic_, *italic*
//Italics//
Underline Format
underlined
{: style='text-decoration:underlined'}
__underline__
Monospace Format
`monospace`
##monospace##
Strikethrough Format
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
--Strike--
Superscript Format
<sup>superscript</sup>
^^superscript^^
Subscript Format
<sub>subscript</sub>
,,subscript,,
Images
![alt text](http://ex.com/image.jpg),
[[image.jpg|alt text:pic]]
image:img.png
image:Space.Page@img.png
[[image:img.png||width="25" height="25"]]
image:http://some/url/img.png

Starting with the xwiki/2.1 syntax, also:
image:icon:cancel
Aligning Text
p{: style='text-align:left'}
p{: style='text-align:right'}
p{: style='text-align:center'}
p{: style='text-align:justify'}
(% style="... css here..." %)Text
Text Indentation
p
{: style='margin-left:3em'}

> blockquote
Non-semantic text indentation through styling:

(% style="... css here..." %)multi line text

Quotes:

> This is a quoted text
Bulleted Lists
* Item 1
** Item 1.1
* Item 2
* List
** list
*** list
Numbered Lists
1. Item 1
1. Item 1.1
2. Item 2
1. Item 1
11. Item 2
111. Item 3
1. Item 4
Definition Lists
term
: definition
; term
: definition
Horizontal Rule
***
----
remove Instiki remove XWiki remove Zwiki