# Copyfree Programming Languages

If you want to learn a programming language and wish to choose something whose
implementation is copyfree, or if you just want to know how much choice you
have for selecting a copyfree implementation of a language you already know,
this collection of programming language lists may give you some guidance.

## Copyfree Reference Implementation Languages

These languages have an obvious primary implementation, and its implementation
(including runtime) is copyfree.  Being available under a disjunctive licensing
scheme, where the recipient may choose the license under which to use it, with
at least one copyfree option, qualifies here.  Minor dependencies with licenses
that are not copyfree may be overlooked here, as in the case of noncritical
components of the standard library shipped with the standard runtime package.

Agda
Alice ML
CoffeeScript
Epigram
D (DMD)
Factor
Fay
Ficl
Go
Haskell
Idris
Io
Ioke
Julia
Lua
mksh
Moonscript
Myrddin
Mythryl
Nim
OctaScript
oksh
Onyx
ooc
picoc
pdksh
PL/pgSQL
Pony
Pure Data
PureScript
Red
Ruby
Rust
scsh
Spry
Squirrel
Tcl
Wren
Zig
Zsh


## Copyfree Major Implementation Languages

These languages have no obvious primary implementation.  They do have several
major implementations of similar importance, however, and among them at least
one meets the same standard of copyfree implementation as the languages listed
in the Copyfree Reference Implementation Languages section.

assembly
C
C++
Common Lisp
JavaScript
Logo
Objective-C
Objective-C++
Scheme
Standard ML
SmallTalk


## Copyfree Alternate Implementation Languages

These languages have a primary implementation that is not copyfree, but also
have alternate implementations that meet the same standard of copyfree
implementation as the languages listed in the Copyfree Reference Implementation
Languages section.

C# (.NET Core, Mono)
Cobra (.NET Core, Mono)
Python (PyPy)
Visual Basic (.NET Core, Mono)


## Copyfree Language With Non-Copyfree Infrastructure

These languages have an obvious primary implementation that is copyfree, with
the significant exception that they target a runtime or compiler that is not
itself copyfree.  The most common cases for such languages is probably
languages that target a JVM.

Apricot
Capuchin
Fancy
Fuby
Functional Java
Huia
Lambra
Noscript
Poison
Rasp
Reia
Scala
Syme
Typhon