Question

How to convert Base64 to a JSON string in JavaScript

Answer 1

const base64String = "ewogICJ1c2VybmFtZSI6ICJPa2FiZSIsCiAgImFnZSI6IDM3Cn0=";

try {
    // Decode Base64 to plain text
    const decodedString = atob(base64String);

    // Parse plain text to JSON
    const jsonObject = JSON.parse(decodedString);

    // Convert JSON object to JSON string
    const jsonString = JSON.stringify(jsonObject, null, 2);

    console.log("JSON String:", jsonString);
} catch (error) {
    console.error("Error converting Base64 to JSON:", error.message);
}



/*
run:

JSON String: {
  "username": "Okabe",
  "age": 37
}

*/

 

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