TiddlyWiki vs. PodWiki vs. Instiki

General Features TiddlyWiki PodWiki Instiki
Version
5.1.21
0.9.1
0.30.0
Last Release Date
2019-07-24 (4 years ago)
2007-02-12 (17 years ago)
2019-02-28 (5 years ago)
Last Update here
2019-11-20 (4 years ago)
2007-02-13 (17 years ago)
2019-03-04 (5 years ago)
Author
Jeremy Ruston, TiddlyWiki community
Thomas Linden
David Heinemeier Hansson, Jacques Distler, Matthias Tarasiewicz
URL
Free and Open Source
Yes
Yes
Yes
License
BSD
GPL
Ruby's
Programming Language
HTML, JavaScript
Perl
Ruby on Rails
Data Storage
Files
Files, RCS
Database
License Cost/ Fee
0
GPL / none
0
Development status
Mature
Mature
Mature
Intended Audience
Individuals, private, small groups
average to advanced users
general, education
System Requirements TiddlyWiki PodWiki Instiki
Operating System
Any
Unix
UNIX, Windows, MacOS X
Root Access
No
No
No
Webserver
Not required (optional backends available)
apache
Thin (included), or Apache/NGinx (via Passenger)
Other Requirements
A common browser
mod_rewrite optional
Ruby 2.0-2.6
Datastorage TiddlyWiki PodWiki Instiki
Text Files
Optional
Yes
No
MySQL
No
No
Yes
PostgreSQL
No
No
Yes
Oracle
No
No
Plugin
SQLite
No
No
Yes
BerkeleyDB
No
No
No
RCS
No
Yes
No
Other
Data self contained in html file OR as individual data files
perl Storable(v0.7) for users, attributes and stuff
Any Rails-compatible back-end datastore can be used.
Security/Anti-Spam TiddlyWiki PodWiki Instiki
Page Permissions
Yes
Yes
Yes
ACL
No
Yes
No
Authentication Backends
optional extensions available
builtin
Host Blocking
No
No
Yes
Mail Encryption
No
Yes
Unknown
nofollow
Unknown
No
Unknown
Blacklist
No
No
Yes
CAPTCHA
No
Yes
Unknown
Delayed Indexing
Unknown
No
Unknown
Development/Support TiddlyWiki PodWiki Instiki
# of Consultants
Preconfigured Hosting
Yes
No
No
Code Repository
Issue Tracker
Mailing List
Support Forum
Chat Channel
#49
Stars on GitHub
7039 ⭐
N/A
478 ⭐
Common Features TiddlyWiki PodWiki Instiki
Preview
Yes
Yes
No
Minor Changes
Yes
No
Yes
Change Summary
Unknown
No
No
Page History
Plugin
Yes
Yes
Page Revisions
Unlimited
Unlimited
Unlimited
Revision Diffs
Between all
Between all
Between all
Sitemap
Yes
Optional
Yes
Plugin System
Yes
No
No
Special Features TiddlyWiki PodWiki Instiki
Unicode Support
Yes
No
Yes
Right-to-Left Support
Yes
No
Yes
Interface Languages
4
German, English, French, Japanese
1
English
1
English
Email notification
Unknown
No
No
Comments
Plugin
Threaded
No
Categories
Yes
Yes
Yes
Namespaces
Plugin
No
No
Conflict Handling
None
Page Locking
Page Locking
Concurrent Editing
Unknown
Unknown
Unknown
Search
Full Text
Full Text
Full Text
Wiki Farming
Yes
Unknown
Yes
Structured Data
Yes
Unknown
No
Links TiddlyWiki PodWiki Instiki
CamelCase
Yes
Yes
Optional
Freelinks
Yes
Yes
Yes
Backlinks
Yes
Yes
Yes
InterWiki
Plugin
Yes
Yes
SisterWiki
No
No
No
Image Links
Yes
Yes
Yes
Windows Shares
Yes
No
No
Page Redirects
Plugin
Unknown
Yes
Syntax Features TiddlyWiki PodWiki Instiki
HTML Tags
Optional
Plugin
All
Math formulas
Yes
No
Yes
Tables
complex
simple + complex
simple + complex
CREOLE support
Plugin
Yes
No
Markdown Support
Yes
No
Yes
Textile Support
No
Yes
Yes
BBCode Support
No
Yes
No
Emoticon Images
Plugin
No
No
Syntax Highlighting
Plugin
No
Yes
Footnotes
Plugin
No
Yes
Quoting
Yes
Yes
Yes
Internal Comments
Yes
Yes
Yes
Custom styles
Yes
Yes
Yes
FAQ Tags
Plugin
No
No
Scripting
JavaScript
Perl
None
Content Includes
Yes
Yes
Yes
Feed Aggregation
Plugin
Yes
No
Usability TiddlyWiki PodWiki Instiki
Section Editing
Yes
No
No
Page Templates
Yes
No
No
Double-Click Edit
Plugin
No
No
Toolbar
Yes
Yes
No
WYSIWYG Editing
Plugin
No
No
Access Keys
Yes
No
Yes
Auto Signature
Plugin
No
Yes
Statistics TiddlyWiki PodWiki Instiki
Recent Changes
Yes
Yes
Yes
Wanted Pages
Yes
No
Yes
Orphaned Pages
Yes
No
Yes
Most/Least Popular
Plugin
Yes
No
Recent Visitors
No
No
No
Analysis
Plugin
No
No
Output TiddlyWiki PodWiki Instiki
Printer Friendly
Print CSS
Print View
Print View
Mobile Friendly
Yes
Unknown
Yes
Themes & Skins
Yes
Yes
No
RSS Feeds
Plugin
Optional
No
ATOM Feeds
Plugin
No
Yes
Abbreviations
Unknown
Yes
Yes
Auto-TOC
Yes
Yes
Yes
Raw Export
Yes
Yes
Yes
HTML Export
Yes
No
Yes
XML export
Unknown
No
No
PDF Export
Plugin
No
No
Office Export
Unknown
Unknown
Unknown
Media and Files TiddlyWiki PodWiki Instiki
File Attachments
Plugin
Yes
Yes
Media Revisions
No
No
No
Embedded Flash
Plugin
Optional
No
Embedded Video
Yes
Optional
Yes
Image Editing
Yes
No
No
SVG Editing
No
No
Yes
MindMap Editing
Plugin
No
No
Media Search
No
No
No
Extras TiddlyWiki PodWiki Instiki
Calendar
Plugin
Unknown
No
Image Galleries
Plugin
Unknown
No
Presentations
Plugin
Unknown
Unknown
Forums
Plugin
Unknown
No
Blogs
Yes
Unknown
No
Ticket System
Plugin
Unknown
No
Chat
Unknown
Unknown
Unknown
Syntax Examples TiddlyWiki PodWiki Instiki
Internal Link 
WikiWord (CamelCase)
[[link]]
[[label|link]]
 
POD:
L<Sandbox>
L<Link Description|Sandbox>

Creole:
[[Sandbox]]
[[Sandbox|Link Description]]

BBcode:
[url]Sandbox[/url]
[url=Sandbox]Link Description[/url]
 
[[Some Page]]
[[Some Page|anchor text]]
[[Some Page#anchor]]
[[Some Page#anchor|anchor text]]
External Link 
http://www.example.com
[[label|http://www.example.com]]
 
L<http://www.daemon.de>
 
[another site](http://example.com)
Headlines 
! Level 1
!! Level 2
!!! Level 3
!!!! Level 4
!!!!! Level 5
 
=head1 The Weather
 
#Level 1#
##Level 2##
###Level 3###
####Level 4####
#####Level 5#####
######Level 6######
Bold Format 
''bold''
 
B<bold>
 
**bold**
Italics Format 
//italic//
 
I<italics>
 
_italic_, *italic*
Underline Format 
__underline__
 
via html only
 
underlined
{: style='text-decoration:underlined'}
Monospace Format 
{{{monospaced}}}
 
put a space in front of monospaced text
 
`monospace`
Strikethrough Format 
--strikethrough--
 
via html only
 
<del>strikethrough</del>
strikethrough
{: style='text-decoration:line-through'}
Superscript Format 
^^superscript^^
 
via html only
 
<sup>superscript</sup>
Subscript Format 
~~subscript~~
 
via html only
 
<sub>subscript</sub>
Images 
[img[local.jpg]]
[img[http://foo.bar/foo.jpg]]
 
G<logo.png>
 
![alt text](http://ex.com/image.jpg),
[[image.jpg|alt text:pic]]
Aligning Text 
using custom classes, e.g.
{{right{
text
}}}
 
via stylesheet only
 
p{: style='text-align:left'}
p{: style='text-align:right'}
p{: style='text-align:center'}
p{: style='text-align:justify'}
Text Indentation 
:indent

> quote

<<<
blockquote
<<<
 
via stylesheet only
 
p
{: style='margin-left:3em'}

> blockquote
Bulleted Lists 
* Item 1
** Item 1.1
* Item 2
 
=over

=item* listitem

=back
 
* Item 1
** Item 1.1
* Item 2
Numbered Lists 
# Item 1
## Item 1.1
# Item 2
 
=over

=item 1. listitem

=back
 
1. Item 1
1. Item 1.1
2. Item 2
Definition Lists 
; term
: description
 
via html only
 
term
: definition
Horizontal Rule 
----
 
---
 
***
remove TiddlyWiki remove PodWiki remove Instiki