Delphi!

Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft. It is used to develop computer programs for Microsoft Windows, as well as web sites, web applications and web services. Visual Studio uses Microsoft software development platforms such as Windows API, Windows Forms, Windows Presentation Foundation, Windows Store and Microsoft Silverlight. It can produce both native code and managed code.

Free Pascal is a GPL'ed compiler that runs on Linux, Win32, OS/2, 68K and more. Free Pascal is designed to be able to understand and compile Delphi syntax, which is of course OOP. Lazarus is the part of the missing puzzle that will allow you to develop Delphi like programs in all of the above platforms. Unlike Java which strives to be a write once run anywhere, Lazarus and Free Pascal strives for write once compile anywhere. Since the exact same compiler is available on all of the above platforms it means you don't need to do any recoding to produce identical products for different platforms. »

MonoDevelop is a cross-platform IDE primarily designed for C# and other .NET languages. MonoDevelop enables developers to quickly write desktop and ASP.NET Web applications on Linux, Windows and Mac OSX. MonoDevelop makes it easy for developers to port .NET applications created with Visual Studio to Linux and Mac OSX maintaining a single code base for all platforms.

KDevelop is a free, open source IDE (Integrated Development Environment) for Linux, Windows (beta) and macOS (experimental).It is a feature-full, plugin extensible IDE for C/C++, Python, JavaScript and PHP.It is based on KDevPlatform, and the KDE and Qt libraries.

CodeTyphon is a fork/distribution of Lazarus with thousands of Lazarus/Free Pascal components bundled into distribution and with own Lazarus expansion features.

Free Pascal (aka FPK Pascal) is a 32 and 64 bit professional Pascal compiler. It is available for different processors: Intel x86, Amd64/x86_64, PowerPC, PowerPC64, Sparc, ARM. The following operating systems are supported: Linux, FreeBSD, Haiku, Mac OS X/Darwin, DOS, Win32, Win64, WinCE, OS/2, Netware (libc and classic) and MorphOS.

Anjuta is a versatile Integrated Development Environment (IDE) for C and C++ on GNU/Linux. It has been written for GTK/GNOME and features a number of advanced programming facilities including project management, application wizards, an interactive debugger and a powerful source editor with source browsing and syntax highlighting. Anjuta is an effort to marry the flexibility and power of text-based command-line tools with the ease of use of the GNOME graphical user interface. That is why it has been made as user-friendly as possible. Anjuta is licensed under the GNU GPL. »

A simple development environment databases, without the help of specialists and programming skills, you will create a Windows application databases. It can be as simple telephone directory and accounting system in your business.

Embarcadero RAD Studio is the industry’s most powerful rapid application development suite for visually building GUI-intensive, data-driven end-user applications for both native Windows and .NET. RAD Studio includes Delphi, C++Builder and Delphi Prism, enabling you to deliver applications up to 5x faster across multiple Windows and database platforms.

Turbo Pascal is a software development system that includes a compiler and an integrated development environment (IDE) for the Pascal programming language running on CP/M, CP/M-86, and DOS.

The C++ IDE for professional developers.

Real Software and Real Studio are now Xojo. Create your own apps, like commercial or in house apps, games, utilities and more with Xojo! This object-oriented multi-platform development tool enables ordinary people to create extraordinary apps for the Desktop, Web, Console, and, soon, iOS.

Pelles C is a comprehensive development suite that can help you create apps compatible with Windows and ARM platforms.