Interoperativity

Julia in conjuction with other programming languages.

• Julia Interop Organization

Mathematica

• JuliaInterop/MathLink.jl : Julia language interface for Mathematica/Wolfram Engine.

Git

• JuliaVersionControl/Git.jl : Julia wrapper for command line Git.
• JuliaWeb/GitHub.jl : A Julia package for interfacing with the GitHub API.

C

• Built-in C interface
• JuliaInterop/Clang.jl : A Julia language wrapper for libclang: the stable, C-exported interface to the LLVM Clang compiler.
• analytech-solutions/CBinding.jl : Automatically creating C library bindings with Julia at runtime.

Cpp

• JuliaInterop/CxxWrap.jl : A package to provide a Boost.Python-like wrapping for C+- types and functions to Julia.

Erlang

• billosys/ErlPort.jl : A Julia-Erlang module for use in the erlport project.

Fortran

Julia has built-in Fortran interface.

Java

Running Java from Julia

• JuliaInterop/JavaCall.jl : call Java programs from Julia.
• JuliaDatabases/JDBC.jl : Julia interface to Java database drivers.
• ChevronETC/TeaSeis.jl : JavaSeis IO implementation for the Julia language.

Running Julia from Java

Discourse thread: Embedding Julia in the Java Virtual Machine.

• rssdev10/julia4j : Julia4J uses SWIG to build a Java Native Interface (JNI) integration with Julia.
• cnuernber/libjulia-clj : Julia bindings for Clojure JVM.

JavaScript

• JuliaGizmos/JSExpr.jl : Translate Julia to JavaScript.
• jverzani/Mustache.jl : Port of mustache.js to julia.
• JuliaComputing/TableView.jl : an ag-grid based table viewer built on WebIO.jl.

MATLAB

• matlab-to-julia online translator.

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• byuflowlab/Fmincon.jl : Wrapper for MATLAB's fmincon function.
• JuliaIO/MAT.jl : A Julia module for reading MATLAB files.
• jondeuce/MATDaemon.jl : Call Julia from MATLAB.
• JuliaInterop/MATLAB.jl : an interface for using MATLAB® from Julia using the MATLAB C api.
• byuflowlab/Mex.jl : Embedding Julia in the MATLAB process.

ObjectiveC

• JuliaInterop/ObjectiveC.jl : A Julia library that allows you to call Objective-C methods using native syntax.

Python

• JuliaPy/Conda.jl : Conda managing Julia binary dependencies. e.g. for IJulia.jl and PyPlot.jl.
• cjdoris/CondaPkg.jl : Julia Pkg-like interface for the conda package mamanger.
• magonser/FStrings.jl : Implementation of Python style fsrings literal string interpolation based on Printf.@sprintf.
• JuliaPy/PyCall.jl : Call Python functions from Julia.
• JuliaPy/pyjulia : Python interface to Julia. (Call Julia functions from Python)
• JuliaPy/PythonCall.jl : Bringing Python and Julia code in harmony. You can also call Julia from Python.

R

• Julia in Rmarkdown using JuliaCall.

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• JuliaInterop/RCall.jl : Embedded R within Julia - ports all the R API functions from C into Julia.
• JuliaData/RData.jl : Read R data files from Julia.

REDUCE

• chakravala/Reduce.jl : Symbolic parser generator for Julia language expressions using REDUCE algebra term rewriter.
• JuliaReducePkg/ReduceAlgebra.jl : Meta-package for Reduce.jl and External Packages.
• JuliaReducePkg/ReduceLinAlg.jl : A selection of functions that are useful in the world of linear algebra.

Ruby

Ruby interoperability

• mrkn/ruby-julia : Julia on Ruby

Rust

• Taaitaaiger/jlrs : Julia bindings for Rust.