Lazarus

Lazarus is a cross-platform IDE for the Free Pascal compiler.

Free Open Source Mac OS X Windows Linux BSD OpenSolaris

Delphi

Embarcadero Delphi, formerly CodeGear Delphi and Borland Delphi, is a software development environment for Microsoft Windows applications originally developed by Borland and now owned and developed by Embarcadero Technologies.

Commercial Windows

Free Pascal

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.

Free Open Source Mac OS X Windows Linux BSD Haiku Windows Mobile AmigaOS AROS

CodeTyphon

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

Free Open Source Windows Linux BSD

Turbo Pascal

Turbo Pascal is a software development system that includes a compiler and an integrated development environment (IDE) for the Pascal programming language running on...

Free Personal Windows

PascalABC.NET

The new generation Pascal programming language that combines simplicity of classic Pascal, a great number of modern extensions and broad capabilities of Microsoft .NET...

Free Windows