Overview#

Noctule is an IDE for Swift development. It is provided as a plugin for JetBrains products and Android Studio.

Installation describes how to set up Noctule and Swift.

System Requirements#

OSmacOS, Linux, Windows

JetBrains IDEs 2025.1 – 2026.1 Android Studio Narwhal or later Swift 6.2 or later

Noctule requires a JetBrains IDE, version 2025.1 or later. Alternatively, you can use Noctule with Android Studio Narwhal or later.

macOS, Linux and Windows are supported.

Swift 6.2 or later or later must be installed on your system to support all features of Noctule. Earlier versions may work but are not officially supported.

Current Limitations#

Noctule is still under active development and not yet a complete Swift IDE. If you need a new feature, please report this as a GitHub issue or start a new discussion on GitHub.

The following features are not supported, although some of them are planned:

Integration with XCode, including opening and importing XCode projects
Support for iOS development
Debugging
…

Features#

Editor Features#

Syntax Highlighting: Noctule provides syntax highlighting for *.swift files. Noctule’s color scheme settings can be configured at Preferences → Editor → Color Scheme → Swift.
File Templates: Noctule provides templates for commonly used Swift declarations, including empty files, classes, protocols and actors.
Code Completion: Noctule provides code completions in the editor.
Code Navigation: Common features like “Find Usages”, “Go To Declaration” and “Go To Symbol” are supported.
Code Formatter: Noctule comes with a native formatter for Swift files. The code style settings are available at Preferences → Editor → Color Scheme → Swift. External formatters are supported by Format on Save settings.
Quick Fixes: Fixes provided by SourceKit LSP and SwiftLint are shown in the editor.
Structure View: The structure of Swift files is supported, including sticky lines in the editor.
Editor Inlays: Inlays display the inferred types of variables and parameters.
Code Folding: Code folding of the most important Swift code structure is supported.

Build and Execution#

Run Configurations: The current version allows configuring and execute run configurations for swift build, swift run and swift test commands.
It’s planned to improve this functionality in the future.

Supported Swift Toolchains#

Swift installed by the following methods are supported and automatically detected:

Swiftly
XCode
Swift in $PATH

Please refer to the installation guide for further details.

Project Management#

Swift Package Manager projects are natively supported.

At Preferences → Build, Execution, Deployment → Swift you can configure the Swift toolchain and the default settings of your project.

Settings of a particular Swift Package Manager project can be customized at Preferences → Build, Execution, Deployment → Swift → Directory Settings.