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As an experiment, we have decided to offer everyone interested a PVS-Studio registration key for 5 days to study its 64-bit diagnostics more thoroughly. The PVS-Studio demo version is absolutely full-function. It is sufficient to study the tool and get familiar with its capabilities. The user has up to 200 clicks to navigate through code fragments the analyzer considers to be probably incorrect. We believe it's quite enough for the user to decide if he/she likes the tool or not. However, that might be insufficient in case you are searching for 64-bit errors. Many of the 64-bit warnings are false positives or are irrelevant to this program, as fragments they point to cannot cause errors. That's why the restriction of 200 messages you can click to navigate through the code may prevent you from forming a definite opinion of the tool. We have been watching an increasing interest towards development of 64-bit software lately. Perhaps this has to do with the release of Embarcadero RAD Studio XE3 Update 1 that has learned now to compile 64-bit applications. Or maybe it's just that the time has come.

JSHint is a tool to detect errors and potential problems in JavaScript code.

Processing is an open source programming language and environment for people who want to program images, animation, and interactions. It is used by students, artists, designers, researchers, and hobbyists for learning, prototyping, and production. It is created to teach fundamentals of computer programming within a visual context and to serve as a software sketchbook and professional production tool. Processing is an alternative to proprietary software tools in the same domain. Processing is free to download and available for GNU/Linux, Mac OS X, and Windows. Please help to release the next version!

This website provides tutorials and sample course content so CS students and educators can learn more about current computing technologies and paradigms. In particular, this content is Creative Commons licensed which makes it easy for CS educators to use in their own classes. The Courses section contains tutorials, lecture slides, and problem sets for a variety of topic areas: AJAX Programming Algorithms Distributed Systems Web Security Languages In the Tools 101 section, you will find a set of introductions to some common tools used in Computer Science such as version control systems and databases.

"BOUML is a free UML 2 tool box allowing you to specify and generate code in C++, Java, Idl, Php and Python."

FlexibleRules aims at supporting the design and editing of computer board games by introducing a simplified programming model and set of software tools. Seems well documented with examples, tutorials

Source code documentation generator tool. Doxygen is a documentation system for C++, C, Java, Objective-C, Python, IDL (Corba and Microsoft flavors), Fortran, VHDL, PHP, C#, and to some extent D.

The Akihabara which you can download here is my personal dream too. It is a set of libraries, tools and presets to create pixelated indie-style 8/16-bit era games in Javascript that runs in your browser without any Flash plugin, making use of a small small small subset of the HTML5 features, that are actually available on many modern browsers.

Lazarus is a free and open source development tool for the FreePascal Compiler. The purpose of the project is to serve as a Code Repository, Wiki Knowledgebase and support site for converting existing components and libraries to work with Lazarus and FPC

with pre made examples for HTML ( extract urls, emails, tags...) Uses Microsoft Silverlight 

The Clang Static Analyzer is source code analysis tool that find bugs in C and Objective-C programs.

The PushButton Engine is an open-source Flash game engine. There are lots of great libaries for building Flash games; PushButton Engine makes it easier to bring them together. PushButton Engine is written in ActionScript 3, and relies on Flash 9 or higher. It officially supports Flex Builder, command line builds, and Flash CS4, and people have succesfully used it with FlashDevelop and other ActionScript development environments. More concretely, PushButton Engine provides some useful utilities (like an XML serialization/level format, logger and other debugging tools, time management, resource manager, and more), and a component system which lets you easily package game functionality into resuable modules. The component system draws on nearly a decade of game development history - you can read about it in detail in the Components section of the manual.

Unity is a multiplatform game development tool, designed from the start to ease creation. A fully integrated professional application, Unity just happens to contain the most powerful engine this side of a million dollars.

Auto Complete Mode is the most intelligent auto-completion extension for GNU Emacs. 

"wxDev-C++ is an extension of Dev-C++ by Colin Laplace et. al. This program helps you to create dialogs and frames for wxWidgets visually using a form designer. With all the wonderful features of Dev-C++, wxDev-C++ is still being actively developed. The main aim of this project is to provide the wxWidgets community with a free, open-source, commercial-grade IDE/RAD tool for development with wxWidgets."

Open Watcom is a project of the open source community to maintain and enhance the Watcom C, C++, and Fortran cross compilers and tools.

Android Emulator is used to run, debug and test the android application. If you don't have the real device, it can be the best way to run, debug and test the application. It uses an open source processor emulator technology called QEMU. The emulator tool enables you to start the emulator from the command line. You need to write: emulator -avd In case of Eclipse IDE, you can create AVD by Window menu > AVD Manager > New. In the given image, you can see the android emulator, it displays the output of the hello android example. hello android example

PVS-Studio is a static analyzer that detects errors in source code of C/C++/C++11 applications. The PVS-Studio tool integrates into the Visual Studio 2005/2008/2010 environment.

We have a practice of occasionally re-analyzing projects we have already checked with PVS-Studio. There are several reasons why we do so. For example, we want to know if we have managed to eliminate false positives for certain diagnostics. But the most interesting thing is to see how new diagnostic rules work and what errors they can find. It is very interesting to watch the tool catch more and more new defects in a project that seems to be cleaned out already. The next project we have re-checked is Clang.

The best way to advertise a static code analyzer is to find errors in open source projects and share them with the world. We have been using this method for a long time while promoting our tool PVS-Studio. If you have ever heard of PVS-Studio, it was most likely from our articles reporting on the checks of such projects as Chromium, WinMerge, TortoiseSVN, Apache HTTP Server, Qt, Clang and many others.