Free Pascal is a GPL&#39;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&#39;t need to do any recoding to produce identical products for different platforms.

Lazarus is completely API independent. Programs could be compiled against Win32, GTK2, Qt, Carbon, FpGUI and more custom drawn widgetsets. With GTK2 and Qt for Windows supported as well.

LCL is largely resembles VCL, so Delphi code could be largely reused.


Lazarus

Windows

Linux

OpenSolaris

Lazarus is a cross-platform IDE for the Free Pascal compiler. It tries to offer a Delphi-like programming experience through its own 'Lazarus Component Library' and supporting many platforms like Windows, OSX, Linux, BSD, Android, iOS and more.

CodeTyphon is a fork/distribution of http://alternativeto.net/software/lazarus/ with thousands of Lazarus/Free Pascal components bundled into distribution and with own Lazarus expansion features.

CodeTyphon is the free &quot;Pascal Visual Programming Studio&quot;, for Cross-Platform Native Development, with Multi-OS, Multi-CPU and Cross-Build abilities. Has Lazarus+FreePascal+Tools+Free Components packages+Free Libraries and all these with full source and samples.

CodeTyphon

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

Red is a new programming language, strongly inspired by http://alternativeto.net/software/rebol/. 

Main characteristics are:

-Functional, imperative and symbolic
-Prototype-based object support
-Homoiconic (Red is its own meta-language)
-Both statically and JIT-compiled to native code
-Concurrency and parallelism strong support (actors, parallel collections)
 -Low-level system programming abilities through the built-in Red/System DSL
-High-level scripting and REPL console support
-Highly embeddable
-Low memory footprint, garbage collected
-Low disk footprint (&lt; 1MB)


Red (Programming Language)

Red is a new programming language, strongly inspired by <a href='//alternativeto.net/software/rebol/'><img alt='Small REBOL icon' class='mini-app-icon' src='//d2.alternativeto.net/dist/icons/rebol_12312.png?width=36&height=36&mode=crop&upscale=false' />REBOL</a>. Main characteristics are:-Functional, imperative and symbolic


Main Features:
- Fast 32 bit assembler, linker, and compiler.
- Uses standard COFF and LIB format files.
- Easily upgradeable and expandable.
- Integrated Scintilla based editor and debugger.
- Multi module programming through projects.
- Supports Windows 98,ME,NT,2000,XP,Vista, and Win7.
- Executables created are royalty free.
- Able to create and use static libraries.
- Generates native machine code, no runtimes! 

IonicWind Basic

IWBasic is a 32-bit BASIC compiler from Ionic Wind Software featuring an integrated development environment with syntax similar to the BASIC programming language. Creates small and fast programs that support all Windows versions.

Apps with 'Compiles to native assembly code' feature

Lazarus

CodeTyphon

Red (Programming Language)

IonicWind Basic