run-kit ☆

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Description:
Universal multi-language runner and smart REPL

Type: Formula | Tracked Since: Feb 9, 2026

Links: Homepage | GitHub | Docs | formulae.brew.sh

Stars: 883 | Forks: 25 | Language: Rust | Category: Developer tools

Tags: repl runner cli rust developer-tool

Install: brew install run-kit

About:
RunKit is a command-line tool that acts as a universal runner and REPL for multiple programming languages. It automatically detects the language of a file and executes it with the appropriate interpreter or compiler. Its main value is providing a consistent, intelligent interface for running code snippets and scripts without needing to remember language-specific commands.

Key Features:

Multi-language support with automatic detection
Smart REPL for interactive code evaluation
File watching for automatic re-execution on changes
Lightweight and fast execution via Rust

Use Cases:

Quickly testing code snippets in various languages from the terminal
Interactive learning and experimentation in a REPL environment
Automating script execution during development with watch mode

Alternatives:

bpython – A feature-rich Python-only REPL, whereas RunKit is multi-language.
nodemon – Focuses on restarting Node.js apps on file changes, while RunKit supports multiple languages and includes a REPL.

Version History

Detected	Version	Rev	Change	Commit
Feb 9, 2026 8:58pm		0	META	ec4923b9