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How to Enable TailwindCSS JIT Compiler

Learn how to enable just-in-time mode (JIT) in TailwindCSS

Created on Jun 28, 2021


To enable the TailwindCSS Just-in-Time *(JIT) compiler, you will need to update the tailwind configuration.

// tailwind.config.js

module.exports = {
  mode: 'jit', // add this configuration
  purge: [],
  theme: {}

Do note that this only available for TailwindCSS version v2.1+ and above. The benefits of the JIT compiler are:
  • Lightning-fast build times
  • Every variant is enabled out of the box
  • Generate arbitrary styles without writing custom CSS
  • Your CSS is identical in development and production
  • Better browser performance in development

Extra Tips: For optimal compiling performance, do include the page to purge like below for your application.
// tailwind.config.js

module.exports = {
  mode: 'jit',
  purge: [
  theme: {}

Watch TailwindCSS 2.1+ announcement video for more goodies. 

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Full stack developer mainly focusing on the front end side of the web. The main author of PostSrc and loves writing tutorial and guides online.