Skip to content

How to create an empty file in Node.js

Discover how create an empty file in a filesystem folder in Node.js

The method fs.openSync() provided by the fs built-in module is the best way.

It returns a file descriptor:

const fs = require('fs')
const filePath = './.data/initialized'

const fd = fs.openSync(filePath, 'w')

the w flag makes sure the file is created if not existing, and if the file exists it overwrites it with a new file, overriding its content.

Use the a flag to avoid overwriting. The file is still created if not existing.

If you don’t need the file descriptor, you can wrap the call in a fs.closeSync() call, to close the file:

const fs = require('fs')
const filePath = './.data/initialized'

fs.closeSync(fs.openSync(filePath, 'w'))

→ Here's my latest YouTube video

→ Get my Node.js Handbook

→ I wrote 17 books to help you become a better developer, download them all at $0 cost by joining my newsletter

JOIN MY CODING BOOTCAMP, an amazing cohort course that will be a huge step up in your coding career - covering React, Next.js - next edition February 2025

Bootcamp 2025

Join the waiting list