Lazarus - Lazarus is a cross-platform IDE for the Free Pascal compiler.
Free Pascal - Free Pascal (aka FPK Pascal) is a 32 and 64 bit professional Pascal compiler.
Dev-Pascal - [DISCONTINUED] Dev-Pascal is a full-featured integrated development environment (IDE), which is...
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
GNU Pascal - The GNU Pascal Compiler (GPC) is, as the name says, the Pascal compiler of the GNU family,
Embarcadero Delphi - Delphi is the fastest way to write, compile, package and deploy cross-platform native applications on Windows, macOS, iOS, Android and Linux.