SMRTR ProgrammingMay 24, 2026Daily.dev

5 Best JavaScript Beautifier Tools for Clean and Readable Code

SMRTR summary

Writing messy or minified JavaScript is inevitable, but the right beautifier tool can clean it up instantly. This guide breaks down five online JavaScript beautifiers — Code Beautify, 99Tools, JSON Formatter, Beautifier.io, and BeautifyTools — comparing their interfaces, privacy practices, configuration options, and ideal use cases to help developers pick the best fit for their workflow.

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