Tailwind CSS Optimization - Flowbite

Optimize for production by using Purge CSS and remove unused CSS using the Tailwind configuration file

The default development build of FlowBite and Tailwind CSS is roughly 3566.2kB uncompressed, 289.2kB when minified and compressed with Gzip, and 71.3kB when compressed with Brotli.

If you have worked with Tailwind CSS previously, you should already know that you should use Purge CSS to remove the unused CSS which was helpful to you when developing.

Remove unused CSS

First of all, you need to set the type of files that you want to be searched for when purging the CSS.

// tailwind.config.js
module.exports = {
  purge: [
  theme: {},
  variants: {},
  plugins: [],

The purge object should include all of the files that have classes, including JavaScript, Markdown, and HTML files.

After that, make sure that you set NODE_ENV to production.

The command that you have to run in your terminal for production build would be:

NODE_ENV=production npx tailwindcss -o flowbite.css

Learn more about how to optimize your code for production by reading the official Tailwind CSS guide.

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