All participants in the Julia community are requested to read the Julia Community Standards, and abide by them in all Julia related forums.

Mailing Lists

Discourse

The primary online discussion venue for Julia is the Discourse forum at discourse.julialang.org. This is a new site which is to replace many of the mailing lists below. Announcements will be made on the relevant lists if and when they are moved.

Google groups

julia-news – low traffic mailing list for important announcements, such as new releases.
JuliaBox – discussions related to running Julia in the so-called cloud.
julia-users-es – discussions around the usage of Julia in the Spanish language.
JuliaTokyo – discussions around the usage of Julia in the Japanese language.
Julia Users Berlin

The following lists were previously used, and are now in a read-only state for archive purposes:

julia-users – discussion around the usage of Julia. New users of Julia can ask their questions here. As a courtesy to others, do check the archives and documentation to see if a particular question is already answered.
julia-dev – discussions related to the development of Julia itself. Note that this is not the primary forum for the development of Julia: most of the discussions take place on GitHub instead (see below).
julia-stats – special purpose mailing list for discussions related to statistical programming with Julia. Topics of interest include DataFrame support, GLM modeling, and automatic generation of MCMC code for Bayesian models.
julia-opt – discussions related to numerical optimization in Julia. This includes mathematical programming (linear, mixed-integer, conic, semi-definite, etc.), constrained and unconstrained gradient-based and gradient-free optimization, and related topics.

GitHub

We use GitHub to track our source code and for tracking and discussing issues (bugs and their fixes, new features, and proposed changes) and commits. GitHub’s pages are for Julia’s development; for user support, please see the Usage category on Discourse.

There is also a list of packages for Julia, many of which are also hosted on and developed using GitHub.

Various Julia projects are hosted under the following umbrella organizations on GitHub:

JuliaLang – The language
JuliaLangEs – Julia resources in the Spanish language
JuliaLangPt – Site for translation of Julia documentation, etc. to Portuguese
JuliaCN – An open-source organization for Julia localization in Chinese
JuliaTokyo – Julia resources in the Japanese language

Computing

JuliaArrays
JuliaBerry – Julia resources for the Raspberry Pi
JuliaCI – Continuous Integration Support for Julia packages
JuliaGPU – GPU computing
JuliaInterop – Easy interoperability between Julia and not Julia
JuliaIO – IO-related functionality, such as serialization
JuliaParallel – Parallel programming in Julia
JuliaWeb – Web stack

Data Science

JuliaDB – Various database drivers for Julia
JuliaImages - Image Processing
JuliaML - Machine Learning
JuliaStats – Statistics

General

JuliaDocs – Documentation-related packages for Julia
JuliaEditorSupport – Extensions/Plugins for text editors and IDEs
Julia-i18n – Internationalization (i18n) and localization (l10n) for Julians
JuliaTime – Date and time libraries
JuliaText
JuliaPraxis - Best practices

Mathematics

JuliaDiff – Differentiation tools
JuliaDiffEq – Differential equation solving and analysis
JuliaGeometry - Computational Geometry
JuliaGraphs – Graph Theory and Implementation
JuliaMath – Mathematics made easy in Julia
JuliaOpt – Optimization
JuliaPolyhedra – Polyhedral computation
JuliaSparse – Sparse matrix solvers

Scientific Domains

BioJulia – Biology
JuliaAstro – Astronomy
JuliaDSP – Digital signal processing
JuliaQuant – Finance
JuliaQuantum – Julia libraries for quantum science and technology

Visualization

GiovineItalia – Plotting (with Gadfly)
JuliaGraphics – Drawing, Colors, GUIs
JuliaPlots – Data visualization
JuliaGL - OpenGL API and ecosystem

Google Summer of Code 2014

Julia participated in the Google Summer of Code 2014.

Blogs

A blog aggregator for Julia blogs

YouTube

Various Julia videos and playlists are posted on YouTube

Twitter

The Julia Language use #JuliaLang hashtag.
Julia News
Julia Bloggers
Julia Pulse
Julia StackOverflow
JuliaComputing
Julia-i18n
JuliaLangEs use #JuliaLangEs hashtag.
JuliaLang Japan use #JuliaTokyo hashtag.

StackOverflow

Use the julia-lang tag on StackOverflow, if you post a Julia related question on StackOverflow.
Use the julia tag on StackOverflow en Español, if you post a Julia related question on StackOverflow in Spanish.

Chat Rooms

IRC

Many Julia users and developers hang out in the #julia IRC channel on Freenode.

Gitter

Organizations

julia Gitter chat room is for discussions around the usage of Julia.
BioJulia
IntelLabs
julia-coverage Gitter chat room is for discussions around Julia tests coverage.
JuliaCPH Julia Copenhagen Meetup.
JuliaDiffEq Solving differential equations in Julia.
JuliaDocs Documentation-related packages for Julia.
JuliaGL
JunoIDE
Julia-i18n Gitter chat room is for discussions around Julia internationalization and localization.
julialang-es Gitter chat room is for discussions around the usage of Julia in the Spanish language.
JuliaLangPt/julia Gitter chat room is for discussions around the usage of Julia in the Portuguese language.
JuliaML
JuliaOpt
JuliaPraxis gitter chat rooms are for discussions around Julia best practices.
JuliaQuantum

Packages

QQ groups

QQ is a more convenient chat service for users in China: About QQ/QQchat. The following are some QQ groups for Julia users and developers:

Julia learners – discussions around the usage of Julia: ID 254087649
JuliaLang China – discussions around the development of Julia community in China: ID 188374671
USTC (University of Science and Technology of China) Julia User Group: ID 316628299
Julia Programming - Academic and industry users of Julia in China: ID 513210135

To join a QQ group, search for a QQ ID in the Tencent QQ service software or app.

Slack

JuliaTokyo, get your invite.

JuliaLangEs, get your invite.

Facebook

Julia Programming Language group for discussions around the usage of Julia.
JuliaLangEs group for discussions around the usage of Julia in the Spanish language.
JuliaTokyo group for discussions around the usage of Julia in the Japanese language.
Julia Korea group for discussions around the usage of Julia in the Korean language.

VK

Julia programming language group for discussions around the usage of Julia.

Meetups

Julia has several local user groups:

North America

Europe

London Julia Users Group
Zurich Julia Users Group
Vienna Julia Meetup
Julia Users Berlin, see also our news site
Warszawskie Forum Julia

Asia

Australia

Sydney Julia User Group

South America

Don’t have one in your area? Why not start one!

Connpass