Lazarus
Delphi-compatible RAD IDE for Free Pascal—cross-compile GUI apps with the LCL widgetset.
Why it is included
GPL-2.0/LGPL-2.1 ecosystem keeping Object Pascal viable for desktop tools.
Best for
Maintaining legacy Pascal codebases or rapid Windows/Linux GUIs.
If you use Windows, Mac, or paid tools
RAD alternative to Delphi (paid) and legacy Visual Basic for maintaining Object Pascal desktop apps.
Strengths
- RAD designer
- Cross-platform LCL
- Large component set
Limitations
- Smaller hiring pool vs mainstream languages
Good alternatives
Free Pascal CLI · .NET
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