reflex ☆
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Description:
Run a command when files change
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: file-watcher automation development productivity cli
Install: brew install reflex
About:
Reflex is a command-line tool that watches files for changes and automatically executes specified commands. It provides a lightweight and efficient way to automate development workflows like reloading servers or triggering builds. The tool supports flexible pattern matching and ignores rules for precise control.
Key Features:
  • File watching with regex pattern matching
  • Automatic command execution on file changes
  • Cross-platform support (Linux, macOS, Windows)
  • Configurable ignore patterns
  • Signal support for process management
Use Cases:
  • Automatically restarting a web server during development
  • Rebuilding assets or documentation when source files change
  • Running tests automatically on code modifications
Alternatives:
  • nodemon – Node.js specific, while Reflex is language-agnostic
  • fswatch – Lower-level file watching utility, Reflex adds command execution
  • inotifywait – Linux-specific, Reflex provides cross-platform compatibility
Version History
Detected Version Rev Change Commit
Oct 9, 2025 8:07pm 0 VERSION_BUMP 9d765284
Sep 15, 2025 8:50pm 0 VERSION_BUMP 106e98be
Sep 14, 2024 1:09am 0 VERSION_BUMP 87df5c1d
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