llvm@21 for Mac
Next-gen compiler infrastructure
brew install llvm@21. It is distributed under the Apache-2.0 WITH LLVM-exception licence. Homebrew recorded 1,055 installs in the last 30 days. What is llvm@21?
llvm@21 is a macOS command-line tool: Next-gen compiler infrastructure.
It is distributed as a Homebrew formula, which builds or unpacks binaries onto your PATH. It is distributed under the Apache-2.0 WITH LLVM-exception licence.
How to install llvm@21
- Open Terminal (press ⌘ + Space and type “Terminal”).
- If Homebrew is not installed, run the install command below first.
- Run
brew install llvm@21.
Install Homebrew first if needed:
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Frequently asked questions
How do I install llvm@21 on a Mac?
Run brew install llvm@21 in Terminal. This requires Homebrew; install it first with the command below if needed.
Is llvm@21 open source?
Yes — Homebrew distributes it under the Apache-2.0 WITH LLVM-exception licence.
Does llvm@21 run on Apple silicon?
Homebrew provides this formula for macOS. If upstream does not publish an Apple silicon build, Rosetta 2 can run the Intel binary.
How popular is llvm@21?
Homebrew analytics recorded 1,055 installs in the last 30 days, ranking it #1010 in this catalogue.
What version of llvm@21 is current?
The latest packaged version is 21.1.8.
Data comes from the public Homebrew API, last updated 2026-10-27. Install counts only include Homebrew installs and are not total users.