How to Convert CSV File to JSON File in Node.js Using CSVTOJSON Library Full Example

Welcome folks today in this post we will be talking about how to covert a simple csv file to json file in node.js using csvtojson library tutorial for beginners. All the source code is given in the description. A step by step youtube video is also shown below.

const csvtojson = require('csvtojson')
const fs = require('fs')

const csvfilepath = "simple.csv"

First of all we are importing all the libraries that we will need for this project. First one is the csvtojson,fs,and then we are providing a filename for the input csv file. This we have created in the same folder.The contents of the input.csv file are as follows.

name,age,subject
gautam,23,computer
pooja,23,maths
sanjay,25,hindi
shubham,29,social

csvtojson()
.fromFile(csvfilepath)
.then((json) => {
    console.log(json)

    fs.writeFileSync("output.json",JSON.stringify(json),"utf-8",(err) => {
        if(err) console.log(err)
    })
})

Now we will call the library function to take input from file and convert it to json. After that we create a new file in the root directory with the help of writeFileSync output.json file. If you execute this node script after that you will find a output.json file which will contain the following contents.

[
  { "name": "gautam", "age": "23", "subject": "computer" },
  { "name": "pooja", "age": "23", "subject": "maths" },
  { "name": "sanjay", "age": "25", "subject": "hindi" },
  { "name": "shubham", "age": "29", "subject": "social" }
]