Arduino IDE

Arduino SA · Nightly preview of Arduino IDE for developing electronics projects, with a modern editor, code navigation, autocompletion, and a live debugger.

CaskDeveloper ToolsApple silicon · Intel
From homebrew/cask
30-day installs1#2267 in App
1-year installs85Last 365 days
Latest versionlatest
Download size193MBarm64 / x86_64 · dmg
Release cadenceIrregular0 releases in 30 days

Arduino IDE is a Developer Tools app for Mac.

About

Arduino IDE is a desktop development environment for electronics projects. This Homebrew cask installs the nightly preview, which the official software page describes as a preview of the upcoming release with updated features and bug fixes. It is distinct from the stable Arduino IDE release.

The official page describes Arduino IDE as offering:

  • A modern code editor and responsive interface.
  • Code autocompletion and navigation.
  • A live debugger.

Install the nightly cask with:

brew install --cask arduino-ide@nightly

The cask installs Arduino IDE.app in /Applications. It conflicts with the separate arduino-ide cask, so these two casks cannot be installed together. The cask requires macOS. The official page also lists separate Arduino tools and products, including Arduino CLI and Arduino Cloud Editor; those are not included in this nightly IDE cask.

Sources: Arduino Software · Homebrew cask definition

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  • ChangesNot provided: exact changes for this version are unverified.

Install and uninstall

Homebrew installs the app in your Applications folder.

Install without Homebrew

Download the file Homebrew uses for your chip: Apple siliconIntel

Uninstall command
$ brew uninstall --cask \arduino-ide@nightly

A regular uninstall removes the app and keeps its settings and caches.

Deep clean (optional)
$ brew uninstall --zap --cask \arduino-ide@nightly

--zap also deletes the settings, caches and other files listed in the Homebrew definition. They can include data shared with other apps and cannot be restored, and it does not guarantee that nothing is left.See which files are removed

Questions

Is Arduino IDE safe?

Arduino IDE is in Homebrew’s official catalog and has not been disabled. Since September 2026, Homebrew disables apps that fail macOS Gatekeeper checks. The download comes from downloads.arduino.cc; Homebrew does not verify a checksum for it. It was installed 1 time through Homebrew in the last 30 days.

How do I completely uninstall Arduino IDE on a Mac?

Run brew uninstall --cask arduino-ide@nightly. To delete its settings and caches as well, run brew uninstall --zap --cask arduino-ide@nightly. That also deletes 7 files and folders, including ~/.arduino15.

Does Arduino IDE run on Apple silicon (M1 and later) Macs?

Yes. Homebrew downloads separate builds for Apple silicon and Intel Macs.

Where does Arduino IDE store its settings and data?

Its data is in ~/.arduino15, ~/.arduinoIDE, and ~/Library/Application Support/arduino-ide. These locations come from Homebrew’s clean-up list.