Lazarus is the class libraries for Free Pascal that emulate Delphi. 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.

aPLib is a 32-bit compression library based on the compression algorithm used in aPACK (my executable compressor). aPLib is an easy-to-use alternative to many of the heavy-weight compression libraries available.

PHP Pacsal is a pascal compiler, where the bytecode interpeter is written in PHP. The compiler core is written in itself (in PHP Pascal).

BeRoTinyPascal is an very small selfcompiling pascal compiler only with 28kB source code, which produces standard win32 peexe executables with native 32-bit x86 machine code.

Features: 

With Turbo™ Delphi® for .NET, you can develop powerful desktop and web applications in Delphi for WinForms, VCL.NET, and ASP.NET Produce 100% PE Verifiable .NET assemblies and have access to the entire .NET Framework 1.1 Class Library. You can build .NET Web Services, .NET remoting servers and clients, and components for WinForms, VCL.NET and ASP.NET. Code faster with refactorings, live templates, code completion, code insight and block completion. And with the customizable and extendable environment for build-your-own and third party components and IDE add-ons you have everything you need to start real .NET development today!

Turbo™ Delphi® is the only truly RAD native Win32® development tool, allowing you to build ultra high-performance applications with no runtime deployment, fast compiles, and a highly productive IDE. Code faster with refactorings, live templates, code completion, code insight and block completion. Rapidly build web applications without needing to know HTML, Javascript, CSS, or HTTP using the IntraWeb technology bundled with Turbo Delphi for Win32. The Visual Component Library including 200+ pre-built drag and drop components, extendable environment for build-your-own and third party components and IDE add-ons provide everything you need to start real Windows development today!

The DPas compiler is a tiny Pascal Compiler which creates compact 32 bit code for protected mode DOS applications. It supports the main key words of Pascal and allows to link multiple units into a single application.

• Lot of small bugs and compatibility fixes
• Improved SSE support
• Improved inlining
• Enhanced variant support
• Embedded resource support for targets using elf32 executable format

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, Sparc. The discontinued 1.0 version also supports the Motorola 680x0. The following operating systems are supported: Linux, FreeBSD, Mac OS X/Darwin, Mac OS classic, DOS, Win32, OS/2, Netware (libc and classic) and MorphOS.

Inno Pascal is a simple Pascal compiler for Win32. It produces compact, native-code x86 executables without requiring any external assemblers or linkers. It was written entirely from scratch; it is not based on any other existing compilers. Full source code is included under the GPL license.

Standalone editor for Delphi Form files (*.dfm) in both binary and text format. It has object tree, object inspector and syntax highlighted editor and form previewing capability. It can be extended with external packages (bpl files) to know more classes. Forms can also be extracted from executables or libraries. Supports D1-D7 forms.