Top Alternatives to Xamarin Studio

Eclipse is a free and open source IDE - Integrated Development Platform.

Microsoft Visual Studio is an Integrated Development Environment (IDE) from Microsoft Corporation.

NetBeans is Integrated Development Environment (IDE) for developing complex applications.

Aptana Studio is a free open-source web development IDE

Code::Blocks is a free, open-source, cross-platform C, C++ and Fortran IDE built to meet the most demanding needs of its users.

Xcode is a complete developer toolset for creating apps for Mac, iPhone, iPad, Apple Watch, and Apple TV.

Lazarus is a free cross-platform visual integrated development environment (IDE) for rapid application development (RAD) using the Free Pascal compiler, which supports dialects of Object Pascal, to varying degrees.

PyCharm is cross-platform, with Windows, macOS and Linux versions.

SharpDevelop (#develop) is a free and open source integrated development environment (IDE) for the .NET Framework, Mono, Gtk#, Glade# platforms.

Bloodshed Dev-C++ is a full-featured Integrated Development Environment (IDE).

KDevelop is a free and open-source integrated development environment (IDE) for Unix-like computer operating systems and Microsoft Windows.

Apache Cordova (PhoneGap) is a mobile application development framework.

CodeLite is a free, open-source, cross-platform IDE for the C, C++, PHP, and JavaScript (Node.js) programming languages.

Qt Creator is a cross-platform C++, JavaScript and QML integrated development environment which is part of the SDK for the Qt GUI Application development framework.

Orwell Dev-C++ is a free, portable, fast and simple C/C++ IDE.

Anjuta is an integrated development environment written for the GNOME project.

Apache Cordova (formerly PhoneGap) is a mobile application development framework.

B4X is a suite of rapid application development IDEs that allows the creation of applications.

Nvu is a WYSIWYG HTML editor, Nvu home page based on the Composer component of the Mozilla Application Suite.

Embarcadero Delphi is a software development kit (SDK) for desktop, mobile, web, and console applications.

Projucer is a digital-first branded content company focussed on building commercial IP in original programming.

Appcelerator Titanium is an open-source framework that allows the creation of native mobile apps on platforms including iOS, Android and Windows UWP.

Editra is a cross-platform, open-source text editor, released under a wxWindows license.

PhpED is a PHP IDE integrated development environment for developing web sites using PHP, HTML, Perl, JScript and CSS.

WeBuilder is a web developer's editor with support for HTML, CSS, JavaScript, PHP, ASP, Ruby, Perl and more.

phpDesigner is a PHP IDE and PHP editor with built-in HTML5, CSS3 and JavaScript editors.

Ultimate++ is a C++ cross-platform rapid application development framework focused on programmers productivity.

CodeTyphon is a Pascal programming studio.

GNOME Builder is a general purpose integrated development environment (IDE) for the GNOME desktop environment.

Microsoft Blend for Visual Studio (Microsoft Expression Blend) is a user interface design tool.

kodeWeave is a HTML/ CSS playground app.