Hey, I'm [Fabio](https://twitter.com/fabiospampinato) and I've been contracted by the Prettier team to speed up Prettier's command line interface (CLI). In this post we'll take a look at the optimizations I've discovered, the process that lead to finding them, some exciting numbers comparing the current CLI with the new one, and some guesses about what could be optimized next.

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Prettier

The new CLI for Prettier has been released, bringing significant performance improvements. The optimizations include faster file finding, efficient resolution of configuration files, and caching of formatting results. By using the cache file, the CLI can achieve a 22x speedup, and even larger improvements may be possible in the future. The installation process is simple, and remembering the cache file between runs is crucial for optimal performance.

Prettier's CLI: A Performance Deep Dive · Prettier