UK Phone Number Normalizer

A simple Preact app to normalize UK phone numbers using signals.
Paste numbers into the textarea, click "Normalize", and copy or download the results!

Setup

npm install
npm run dev

Then visit http://localhost:5173.

Usage

1. Paste UK phone numbers (one per line) into the first textarea.
2. Click Normalize.
3. Copy results from the second textarea or click Download as .txt.

Build

npm run build
npm run preview