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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

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.

Axiis is an open source data visualization framework designed for beginner and expert developers alike. Whether you are building elegant charts for executive briefings or exploring the boundaries of advanced data visualization research, Axiis has something for you. Axiis provides both pre-built visualization components as well as abstract layout patterns and rendering classes that allow you to create your own unique visualizations.

ecoder is an open-source web-based code editor, with real-time colour syntax highlighting, which allows multiple documents to be edited directly online at the same time. mecoder made possible thanks to editarea javascript wizardy.requirementsecoder works with most standards compliant browsers which have javascript enabled. internet explorer 6 is not supported.

The Google Visualization API lets you access multiple sources of structured data that you can display, choosing from a large selection of visualizations. Google Visualization API enables you to expose your own data, stored on any data-store that is connected to the web, as a Visualization compliant datasource. Thus you can create reports and dashboards as well as analyze and display your data through the wealth of available visualization applications. The Google Visualization API also provides a platform that can be used to create, share and reuse visualizations written by the developer community at large.

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!

Bespin is an online code editor by Mozilla. It allows you to write and edit code, share projects, and connect to existing open-source projects.

ActiveState Code is a site for learning from and sharing code recipes - with a focus on dynamic languages and languages used for web development. The recipes you'll find here highlight programming best practices and can be used directly in day-to-day tasks, as a source of ideas, or as a way to learn more about languages or libraries. We invite you to contribute code, comments, and ratings for recipes. The recipes are freely available for review and use.

search API returns links and facts. Another way Factery is different is that you decide the sources to use. You can search Twitter, Digg, or a standard search engine. All you need are pages containing a list of links and Factery does the rest.

Matt Nowack has taken the awesome HTML5 presentation app in HTML5, which is open source, and has created a presentation discussing jQuery 1.4. It is good stuff, using the fact that you can embed the features that you want to show. Just as long as you can hit the right arrow to get through the "look at all the people who use jQuery" part (we get it! lots of people use jQuery!)

Placecast MatchAPI is a Rosetta Stone for location data, translating addresses from different location data sources and resolving them to the one correct place. The Placecast MatchAPI resolves the two most challenging problems of working with large location-based data sets. First, it disambiguates addresses by identifying all of the different ways to express the address of a location and verifying that those differing expressions refer to the same place. Second, it maps all the relevant IDs from your different content providers to that same place so that it is always referred to correctly by any other system.

"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."

Jitsi is a set of open-source projects that allows you to easily build and deploy secure videoconferencing solutions. End-to-end encryption for video conferencing

CakePHP is a opensource web application framework which follows model-views-controller (MVC) approach and is written in PHP. Lets see an example on Pagination in CakePHP.

In today's era, Node.js is an open source framework and is becoming immensely popular. Node.js is used to create APIs as well as construct a new interoperability matrix over web. Node.js is a platform used to design server side apps. To know more about Node.js web application framework, read this article.

Yes, you've guessed correctly - the answer is "42". In this article you will find 42 recommendations about coding in C++ that can help a programmer avoid a lot of errors, save time and effort. The author is Andrey Karpov - technical director of "Program Verification Systems", a team of developers, working on PVS-Studio static code analyzer. Having checked a large number of open source projects, we have seen a large variety of ways to shoot yourself in the foot; there is definitely much to share with the readers. Every recommendation is given with a practical example, which proves the currentness of this question. These tips are intended for C/C++ programmers, but usually they are universal, and may be of interest for developers using other languages.

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