IDE Workflows for Julia

Working in a good editor significantly improves the Julia experience. Choose whichever option fits your existing workflow best.

While the Julia REPL is powerful on its own, most users pair it with an IDE that provides syntax highlighting, inline documentation, and — most importantly — tight REPL integration so that code can be sent from a script to a live Julia REPL session with a single keypress combination.

VS Code/VSCodium

Visual Studio Code is probably the most widely used editor for Julia development. VSCodium is a fully open-source build of VS Code without Microsoft telemetry, and is compatible with the same Julia extensions.

Install the Julia extension (julialang.language-julia) to unlock:

• Integrated REPL — send lines or selections with Shift+Enter

• Inline evaluation results and variable display

• Debugger, profiler, and plot pane

• Workspace variable explorer and data viewer

The extension can be installed from within the IDE via the Extensions panel (Ctrl+Shift+X) by searching for Julia.

Windows users — shell mode fix If Julia's shell mode (; in the REPL) doesn't work inside VS Code, installing Git Bash and adding the following to your VS Code settings.json (open via Ctrl+Shift+P → Preferences: Open User Settings (JSON)) has been reported to fix the issue. This was found via trial and error and may not be the only/best solution:

{
    "terminal.integrated.env.windows": {
        "SHELL": "C:\\Program Files\\Git\\bin\\bash.exe",
        "Path": "${env:Path};C:\\Program Files\\Git\\usr\\bin"
    },
    "terminal.integrated.profiles.windows": {
        "Git Bash": {
            "path": "C:\\Program Files\\Git\\bin\\bash.exe"
        }
    },
    "terminal.integrated.defaultProfile.windows": "Git Bash"
}

Positron

Positron is an open-source fork of VS Code by Posit (makers of RStudio) with first-class support for both R and Python. It ships a dedicated Connections, Variables, and Plots pane out of the box, making it feel closer to RStudio for researchers coming from an R background.

There is also a dedicated positron-julia extension available on Open VSX, installable via the Extensions panel. The positron-julia extension is in very early development and may be unstable.

JetBrains IDEs

JetBrains offer Julia support via the Flexible Julia plugin. It should work in any JetBrains IDE (e.g., IntelliJ IDEA, PyCharm) and provides:

• Full language server support (completion, go-to-definition, refactoring)

• Integrated Julia REPL within the IDE

• Package manager UI

JetBrains IDEs are commercial software, though free community editions and academic licences are available.

Neovim + Iron.nvim

For more terminal-focused workflows, Neovim combined with Iron.nvim provides a lightweight but highly capable environment:

• iron.nvim opens a Julia REPL split and lets you send lines, visual selections, or entire files with configurable keymaps

• Pair with nvim-lspconfig + the Julia language server (julials) for completion and diagnostics