Node.js String Decoder Complete Reference

Last Updated : 23 Jul, 2025

The string Decoder module provides an API for decoding Buffer objects into strings.

Example:

JavaScript

// Node.js program to demonstrate the
// stringDecoder.write() Method

// Import the string_decoder module
// and get the StringDecoder class
// using object destructuring
const { StringDecoder } = require("string_decoder");

// Create a new instance of the decoder
const decoder = new StringDecoder("utf-8");

const text_one = Buffer.from("GeeksforGeeks", "utf-8");
let decoded_text = decoder.write(text_one);
console.log("Decoded Text:", decoded_text);

Output:

Decoded Text: GeeksforGeeks

The Complete List of String Decoder are listed below:

Class: StringDecoder

Class: StringDecoder Methods	Description
stringDecoder.end()	Return all the remaining input stored in the internal buffer as a string.
stringDecoder.write()	Return a decoded string from the given Buffer, TypedArray, or DataView.