magic-string is a small JavaScript utility for editing strings while preserving accurate source maps. It is designed for compilers, bundlers, preprocessors, and code transformation tools that need to rewrite source code safely. The library lets developers overwrite, append, prepend, remove, move, and slice sections of text without losing track of where transformed content came from. This makes it especially useful when generated output still needs to map back to the original source for debugging. Magic String works in both Node.js and browser environments. Its main value is making code manipulation precise, fast, and source-map-friendly for build tools and language tooling.

Features

  • String manipulation for code tools
  • Source map generation support
  • Append, prepend, overwrite, and remove operations
  • Node.js and browser compatibility
  • Useful for compilers and bundlers
  • Lightweight transformation utility

Project Samples

magic-string Screenshot 1

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License

MIT License

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Additional Project Details

Programming Language

JavaScript

Related Categories

JavaScript Libraries

Registered

2026-06-10
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