Free is html platform independent software for linux

NewsCloud Media Platform project is a LAMP-based social network community site for news aggregation and citizen journalism. The system integrates Smarty for template customization.
The NewsCloud Media Platform allows bloggers, developers, communities and organizations to integrate news gathering and discussions between their own Web sites and the NewsCloud community. The NewsCloud Media Platform is open source and can also be used to launch independent news-based community Web sites.
The NewsCloud Wiki will help you get more involved in using the NewsCloud Media Platform.
Guides for Bloggers and Groups
NewsCloud makes it easy for bloggers to share their work with our community and improve the news gathering elements of your own site. If you are a blogger interested in using NewsCloud to enhance and promote your blog, youll want to read our Guide for Bloggers. Our Guide for Groups is coming soon.
Guide for Developers
Whether you are interested in using our NewsCloud Web Services API to enhance your own Web site or want to get involved in using or extending the code behind NewsCloud, youll want to learn more about the NewsCloud Media Platform. Please visit our Guide for Developers for more information.
We also have set up a Google Groups Developer Forum for discussions and peer support.
Guide to Templates
NewsCloud provides a powerful templating system for customizing your journal, your groups and soon your own news site. If you are interested in designing the look and feel of your NewsCloud pages to brand your organization, non-profit, blog or Web site, please visit our Guide to Templates
Enhancements:
- We made some slight changes to make installation easier.
- We have a complete Debian install script on our Wiki now.

Untangle Gateway Platform is a Linux-based network gateway with pluggable modules for network applications like spam blocking, Web filtering, anti-virus, anti-spyware, intrusion prevention, VPN, SSL VPN, firewall, and more.
Enhancements:
- Bugfixes from 5.0.0-beta; this release is stable.

Mimas Toolkit is a C++ computer vision toolkit. It is easy to use and includes tools for edge detection, corner detection, various filters, optic flow, tracking, blob analysis, Web cam tools for real-time applications, and much more.
Mimas Toolkit project also includes many implementations of traditional algorithms such as Canny. It was developed for GNU/Linux but as the GUI is largely separate, porting to other platforms should be straightforward.
Mimas was originally conceived as a platform for real-time machine vision research. Its aim was and still is to reduce the turnaround time of new research into the application workspace. It is written in C++ and is released in source code form subject to the GNU Lesser General Public License (LGPL).
Mimas has been used to build a number of vision systems including for two European Union sponsored projects, namely MINIMAN (completed in 2002) and MiCRoN (expected to complete in the 3rd quarter of 2005). Mimas is also being used to build a number of customised vision solutions for academia and industry. As such, if you do require a vision-based solution then please contact the authors of this software.
Main features:
- generic image class (greylevel and colour)
- low level image processing
- frequency domain processing
- variety of recognition methods
- variety of tracking methods
- active contours
- comprehensive matrix library
- variety of statistical operations
- associative neural network
- multi-layer perceptrons ANN
- image capture
- various example interfaces
Mimas is designed to be platform independent from the ground-up. Hence a user interface is not built-in. Rather Mimas acts as the engine of a vision system. Since it is written in C++, we recommend that you use the GPL-ed version of the cross-platform Qt toolkit or the Mozilla XP toolkit for building user interfaces.

JXHTMLEDIT is a browser-based HTML/XHTML content authoring. JXHTMLEDIT tool is based on the Java 2 Platform that allows WYSIWYG editing on multiple platforms (require the Sun JavaTM Plug-in 1.4 or higher installed on client).
JXHTMLEdit is a cross-platform WYSIWYG (What You See Is What You Get) HTML/XHTML content authoring tool, a very small Java Applet based on the Java 2 Platform. JXHTMLEdit provides word processor-like user interface that allows users to edit the XHTML document directly in the final form (as will be rendered). This empower non-technical users to become content contributors without any knowledge of HTML or XHTML.
Specifically designed and optimized to edit only the < body > portion of HTML/XHTML page, JXHTMLEdit outputs to your choice HTML or well-formed XHTML.
JXHTMLEDIT preloads the HTML/XHTML content during startup from a specified html form field (e.g.: < textarea >) where it also saves the generated code.
JXHTMLEdit has been designed to offer great flexibility and could be used to easily integrate WYSIWYG authoring functionality into existing websites, CMS, WMS or any other Web-based software. The Applet JAR archive is less than 150 KB and its cacheable, so it loads very quickly.
Main features:
- platform independent, works on most Operating Systems available today
- browser-based and cross-browser Java Applet, works fine with any Javascript-enabled internet browser that support Sun JavaTM Plug-in 1.4 or higher
- two different jar versions are available:
- signed (jxhtmledit.jar) : to support cut-and-paste to and from system clipboard;
- unsigned (jxhtmledit_u.jar) : support only local clipboard;
- applet jar is less than 150 KB, loads quickly
- WYSIWYG and source code editing (the source editor pane may be disabled)
- partial support for stylesheet CSS1
- support custom tags
- customizable charset encoding, support international character sets and html entities (require appropriate OS/browsers)
- output HTML or well-formed XHTML to your choice
- support XHTML indentation (to increase readability) or compact mode (to reduce code size)
- could be launched as a popup window or used as a textarea
- support copy, cut-n-paste, undo, redo, search and select-all
- buttons and combo boxes are configured using external XML file (java/config/buttons.xml)
- support custom buttons and custom selection boxes to add custom tags or execute predefined actions
- strings could be localized using external TMX file (java/config/tmx.xml)
- all x/HTML tags and relative attributes are defined using external XML files (java/config/tags.xml, attributes.xml, categories.xml, status.xml)
- support help tooltips (popup descriptions that appear when mouse pointer is over the button)
Enhancements:
- The license was changed to the GPL.

Freejtv HTML/Javascript Slideshow Template is a cross-browser, cross-platform HTML/Javascript template page for building your own slideshow and gallery. The project supports more than 30 DirectX transitions in the IE browser and fade in/out transition in Firefox.
Howto:
Press Simple Slide, Effect Slide and Collage Slide on top menubar to generate your own thumbnail photo album and music photo presentation (NO demo versions restriction or other functional limitations). Its a self-aid free service (based on Java applet, 1.4.2 or higher is required).
Nowadays a lot of free web hosting services provide free subdomain web space (100-500M space, 5G-20G bandwidth/Month, 500K filesize limit, PHP support, Zero cost for 1 year). You can upload the generated thumbnail gallery and the slide page to any web spaces. If the photos are too large, you can press the Image Processing on top menubar to reduce the filesize of a group of jpeg files. Its much easier than using photoshop to save them one by one.
Problems:
The most common error is caused by applets cache. For efficiency, applet and application data are cached and sticky in a directory other than browsers cache. If the applet could not work correctly, you should open the java plugin control panel and empty the cache first.
Error could also be caused by proxy. As this site is powered by services from Blogger, Googlepages and Myjavaserver, users should make sure that the browser could visit the 3 sites. Since applet may use a network connection different from browsers, users should make sure that the applet could visit all the three sites too. Applets network connection could be set from java plugin control panel.
If it still could not work, email the java consoles output to me.
Enhancements:
- Background music playing is improved in Firefox and Safari.
- This release works with Safari correctly.
- Music pause/resume support has been added.
- The documentation has been revised.

The Irrlicht Engine is an open source high performance realtime 3D engine written and usable in C++ and also available for .NET languages.
Irrlicht Engine is completely cross-platform, using D3D, OpenGL and its own software renderer, and has all of the state-of-the-art features which can be found in commercial 3d engines.
Weve got a huge active community, and there are lots of projects in development that use the engine.
You can find enhancements for Irrlicht all over the web, like alternative terrain renderers, portal renderers, exporters, world layers, tutorials, editors, language bindings for java, perl, ruby, basic, python, lua, and so on. And best of all: Its completely free.
Main features:
- High performance realtime 3D rendering using Direct3D and OpenGL [more]
- Platform independent. Runs on Windows95, 98, NT, 2000, XP and Linux.[more]
- Huge built-in and extensible material library with vertex and pixel shader support [more].
- Seamless indoor and outdoor mixing through highly customizeable scene mangagment. [more]
- Character animation system with skeletal and morph target animation. [more]
- Particle effects, billboards, light maps, environment mapping, stencil buffer shadows, and lots of other special effects. [more]
- .NET language binding which makes the engine available to all .NET languages like C#, VisualBasic, and Delphi.NET.
- Platform and driver independent fast software renderer included. It features z-buffer, gouraud shading, alpha-blending and transparency, fast 2D drawing.
- Powerful, customizeable and easy to use 2D GUI System with Buttons, Lists, Edit boxes, ..
- 2D drawing functions like alpha blending, color key based blitting, font drawing and mixing 3D with 2D graphics.
- Clean, easy to understand and well documentated API with lots of examples and tutorials.
- Written in pure C++ and totally object orientated.
- Direct import of common mesh file formats: Maya (.obj), 3DStudio (.3ds), COLLADA (.dae), DeleD (.dmf), Milkshape (.ms3d), Quake 3 levels (.bsp), Quake2 models (.md2), Microsoft DirectX (.X)... [more]
- Direct import of Textures: Windows Bitmap (.bmp), Portable Network Graphics (.png), Adobe Photoshop (.psd), JPEG File Interchange Format (.jpg), Truevision Targa (.tga), ZSoft Painbrush (.pcx)... [more]
- Fast and easy collision detection and response.
- Optimized fast 3D math and container template libraries.
- Directly reading from (compressed) archives. (.zip)
- Integrated fast XML parser.
- Unicode support for easy localisation.
- Works with Microsofts VisualStudio6.0?, VisualStudio.NET 7.0-8.0?, Metrowerks Codewarrior, and Bloodshed Dev-C++ with g++3.2-4.0.
- The engine is open source and totally free. You can debug it, fix bugs and even change things you do not like. And you do not have to publish your changes: The engine is licensed under the zlib licence, not the GPL or the LGPL.

More for C++ is a class library that provides some features usually not common for C++

More for C++ includes a mark-sweep garbage collector, platform-independent classes for threading, sockets, and I/O, unit tests, and a few other utility classes.

First of all, there is a garbage collector for automatic memory management. When an object has been referenced by a special smart pointer and should not be used any more, it will be destroyed by the librarys garbage collector.

Next, there are platform independent packages for file operations, networking and multithreading. At the time being, concrete implementations exist for Win32 and GNU/Linux.

Additionally, the library has some utility classes like containers, observers and (of course the inevitable class "String" (which - like any other class provided by and used with this library - will also be managed by the garbage collector).
One of the most recent packages is called "servlet". It offers the possibility to write loadable modules for the popular Apache web server, serving dynamic content with C++.

Last but not least, "More for C++" comes with its own framework for writing unit tests. This package has been inspired by the fabulous JUnit by Kent Beck and Erich Gamma.

By using this library, you are able to combine the performance of C++ with the elegance and ease of use of Java and Python. A native garbage collector in combination with the smart pointer class helps you to avoid common programming errors like dangling pointers or memory leaks. Besides this, the platform independence helps you to easily port your programs to the most important operating systems.