planck
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Description:
Stand-alone ClojureScript REPL
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: clojurescript repl development programming lisp
Install: brew install planck
About:
Planck is a stand-alone ClojureScript REPL environment that runs directly on your system without requiring a JVM. It leverages the JavaScriptCore engine on macOS or SpiderMonkey on Linux/Windows to provide fast startup times and low memory usage. This makes it ideal for scripting, quick experiments, and learning ClojureScript without the overhead of a full development environment.
Key Features:
  • Immediate startup and low resource footprint
  • Full ClojureScript standard library support
  • Integrated REPL with editor integration support
  • Works without a Java Virtual Machine (JVM)
Use Cases:
  • Rapid prototyping and experimentation with ClojureScript
  • System scripting and automation tasks
  • Interactive learning and education for ClojureScript
Alternatives:
  • Clojure – The JVM-based parent language; heavier but with full Java interop.
  • Lumo – A similar Node.js-based ClojureScript REPL, now largely superseded by Planck.
Version History
Detected Version Rev Change Commit
Sep 16, 2025 1:08pm 3 VERSION_BUMP 4b5016d2
Oct 31, 2024 7:27am 2 VERSION_BUMP fda58f40
Oct 31, 2024 12:42am 2 VERSION_BUMP 8f6c3583
Sep 13, 2024 6:46am 0 VERSION_BUMP 2da1608e