Xcode Alternatives for Mac OS X

Eclipse is a powerful, open-source Integrated Development Environment (IDE) widely used for Java development, but also supporting a variety of other programming languages through its extensive plugin ecosystem. It provides a robust set of tools for coding, debugging, testing, and deployment.

NetBeans is a free and open-source Integrated Development Environment (IDE) specifically designed for enterprise-level Java development, supporting a wide array of other languages and technologies, including PHP, C++, JavaScript, HTML, and CSS. It provides comprehensive tools for coding, debugging, testing, and deploying applications.

Atom is a highly customizable and extensible open-source text editor developed by GitHub. Built on Electron, it provides a modern, hackable platform for developers, offering robust features like syntax highlighting, Git integration, and a vast ecosystem of packages to enhance productivity and tailor the editing experience to individual needs.

Aptana Studio was a robust, open-source integrated development environment (IDE) specifically designed for web development. It provided developers with a comprehensive set of tools and features to build web applications efficiently, supporting various web technologies like HTML, CSS, JavaScript, PHP, and Python.

IntelliJ IDEA is a powerful Integrated Development Environment (IDE) designed primarily for Java programming, but also supporting a wide range of other languages and frameworks. Renowned for its intelligent code assistance, developer-friendly features, and robust tooling, it accelerates development workflows and improves code quality.

Lazarus is a powerful, free, and open-source visual IDE for rapid application development with Free Pascal. It provides a Delphi-like experience for creating cross-platform native applications across various operating systems.

WebStorm is a powerful JavaScript IDE from JetBrains, designed for modern web development. It offers advanced coding assistance for JavaScript, HTML, and CSS, alongside support for many related technologies like Node.js, React, Angular, and Vue.js. Its rich feature set includes smart code completion, error detection, refactoring, debugging, and integrated development tools.

PhoneGap, powered by Apache Cordova, is a popular open-source mobile development framework enabling developers to build cross-platform mobile applications using standard web technologies like HTML, CSS, and JavaScript.

CodeLite is a free, open-source, and cross-platform Integrated Development Environment (IDE) designed specifically for C, C++, PHP, and JavaScript (Node.js) development. It provides a feature-rich environment to streamline the coding process for these languages.

Qt Creator is a powerful, cross-platform Integrated Development Environment (IDE) tailored for building applications with the Qt framework. It supports C++, QML, and JavaScript, offering a comprehensive suite of tools for designing UIs, writing code, debugging, and deploying software across various platforms.

Zend Studio is a comprehensive Integrated Development Environment (IDE) specifically designed for professional PHP developers. It offers a rich set of tools to streamline the development lifecycle for web and mobile applications.

MIT App Inventor is an intuitive, block-based visual programming environment designed for beginners to create fully functional Android applications. It leverages a drag-and-drop interface within a web browser, removing the complexity of traditional coding and making mobile app development accessible to everyone.

Projucer is a powerful IDE and project management tool for C++ developers, particularly those working with the JUCE framework. It simplifies the creation, management, and deployment of cross-platform audio and plugin applications.

Appcelerator Titanium is a powerful open-source framework designed for building native mobile applications from a single JavaScript codebase. It enables developers to leverage their existing web development skills to create high-performance, truly native user experiences across iOS and Android devices.