Hex to Base64

What Is Hexadecimal?

Hexadecimal (hex) is a base-16 system using 16 symbols (0-9, A-F) to represent binary data in a more readable format. Each hex digit corresponds to four binary bits, making it compact and efficient.

Hex is widely used in programming, cryptography, debugging, and memory addressing. It simplifies data representation, enhances security, and ensures compatibility in various computing applications, including web development, system operations, and machine code processing.

What Is Base64?

Base64 is a text-based encoding scheme that converts binary data into an ASCII string format using a set of 64 characters, including uppercase and lowercase letters, numbers, and symbols. This encoding ensures that binary data can be safely transmitted over text-based protocols such as email and HTTP. It is widely used in data transmission, cryptographic key encoding, image embedding in web development, and storing complex data structures in a compact and universally readable format.

How to Use Hex to Base64 Converter?

• Enter Hex Data: Paste your Hex string into the input field or load the data directly from its URL. Alternatively, you can upload a TXT file containing your Hex data.
• Conversion Process: The conversion will happen automatically as you type. To convert manually, simply uncheck the auto-conversion option and click the “Convert” button to initiate the process.
• Copy/Download the Output: To copy the converted Base64 data easily, use the provided copy button. You can also download the converted data as a TXT file.
• Reset or Modify: Click the reset button to clear the inputs and start a fresh conversion.

How to Convert Base64 to Hex using JavaScript?

You can convert a hex string to Base64 in JavaScript using the following approach:

Steps:

• Convert the hex string to a byte array.
• Convert the byte array to a Base64-encoded string.

Code:

function hexToBase64(hex) {
    // Convert hex to a byte array
    let bytes = new Uint8Array(hex.match(/.{1,2}/g).map(byte => parseInt(byte, 16)));

    // Convert byte array to a binary string
    let binary = String.fromCharCode(...bytes);

    // Encode binary string to Base64
    return btoa(binary);
}

// Example Usage
let hexString = "48656c6c6f20576f726c64"; // "Hello World" in hex
let base64String = hexToBase64(hexString);
console.log(base64String); // Output: "SGVsbG8gV29ybGQ="

Explanation:

• The hex string is split into 2-character chunks (each representing a byte).
• Each hex pair is converted to a decimal (integer) value.
• The array of decimal values is converted into a string.
• The string is then Base64-encoded using btoa().

How to Convert Base64 to Hex Using Java?

In Java, you can convert a hex string to a Base64-encoded string using the following approach:

Steps:

• Convert the hex string into a byte array.
• Use Java’s Base64 class to encode the byte array into a Base64 string.

Code:

import java.util.Base64;

public class HexToBase64Converter {
    public static String hexToBase64(String hex) {
        // Convert hex string to byte array
        byte[] bytes = new byte[hex.length() / 2];
        for (int i = 0; i < hex.length(); i += 2) {
            bytes[i / 2] = (byte) Integer.parseInt(hex.substring(i, i + 2), 16);
        }

        // Encode byte array to Base64
        return Base64.getEncoder().encodeToString(bytes);
    }

    public static void main(String[] args) {
        String hexString = "48656c6c6f20576f726c64"; // "Hello World" in hex
        String base64String = hexToBase64(hexString);
        System.out.println(base64String); // Output: SGVsbG8gV29ybGQ=
    }
}

Explanation:

• The hex string is processed in chunks of two characters (each representing a byte).
• Each hex pair is converted into a byte value.
• The resulting byte array is then encoded into a Base64 string using Base64.getEncoder().encodeToString().

How to Convert Base64 to Hex Using Python?

To convert a Base64 string to Hex in Python, you can follow these steps:

• Decode the Base64 string to bytes using the base64 module.
• Convert the decoded bytes to a Hex string using the binascii module.

Example:

import base64
import binascii

# Your Base64 string
base64_string = "SGVsbG8gd29ybGQ="  # This is "Hello world" in Base64

# Step 1: Decode the Base64 string to bytes
decoded_bytes = base64.b64decode(base64_string)

# Step 2: Convert the bytes to a Hex string
hex_string = binascii.hexlify(decoded_bytes).decode()

print(f"Hexadecimal: {hex_string}")

Explanation:

• base64.b64decode() decodes the Base64 string to bytes.
• binascii.hexlify() converts the byte data to a hexadecimal representation.
• .decode() is used to convert the byte output of hexlify to a string.

In this case, "SGVsbG8gd29ybGQ= " (Base64 for "Hello world") will output:

Hexadecimal: 48656c6c6f20776f726c64

Why Convert Base64 to Hex?

Converting Base64 to Hex is essential for various technical and security-related applications:

• Data Integrity & Debugging – Hex format makes it easier to analyze and compare raw data.
• Cryptography & Security – Hex is widely used in encryption algorithms and digital signatures.
• Efficient Storage & Processing – Hex provides a compact and structured way to store and process data.
• Embedded Systems & Firmware – Developers working with low-level programming need hex representations for better control and precision.
• Interoperability – Some systems require data to be formatted in hex rather than Base64 for compatibility.

Common Use Cases

• Cryptography & Security – Convert encoded data for secure communication.
• Programming & Development – Useful for encoding and debugging applications.
• Data Transmission – Ensures smooth conversion of binary data into readable formats.
• Embedded Systems – Essential for low-level programming and firmware development.

Frequently Asked Questions (FAQs)

What is the purpose of converting Base64 to Hex?

Converting Base64 to Hex provides a more structured and readable format for binary data, which can be useful in debugging, cryptography, and data integrity checks.

Is this tool free to use?

Yes, our Base64 to Hex converter is completely free with no hidden charges or limitations.

Can I convert large Base64 strings?

Yes, the tool efficiently handles large Base64-encoded strings without performance issues.

Is my data stored or shared?

No, we prioritize your privacy. Your data is processed in real time and not stored or shared.

Can I use this tool on mobile devices?

Absolutely! Our converter is mobile-friendly and works seamlessly on all devices.

What formats are supported for Hex output?

You can choose various formats such as space-separated, comma-separated, prefixed with '0x', or no separator at all.