Base64 to Binary Converter

What is Base64 to Binary Converter?

The Base64 to Binary Converter is an online tool that helps you convert Base64 encoded data into raw binary format. Base64 is a way of encoding binary data (such as images, files, or any binary content) into a text string using 64 characters from the ASCII set.

This encoding is commonly used to transfer binary data over text-based protocols like email or HTTP, as these systems typically only support text.

The Base64 to Binary Converter decodes this Base64 text back into its original binary form, making it useful for software developers, testers, and security professionals who need to work with or analyze raw binary data.

How to Use Base64 to Binary Converter?

This is an easy to use free online tool that converts Base64 encoded data into plain binary format. To do so, just follow these simple steps:

• Enter Base64 Data: Paste or manually type your Base64 encoded data into the input box below the "Base64" section.
• Enable Auto-Update (Optional): Convert binary to octal effortlessly with one click.
• If Auto Update is checked, the binary output will appear automatically once you enter the Base64 data.
• If unchecked, click "Convert to Binary" to generate the output manually, which will appear in the text box below the "Binary" section.
• View the Binary Output: After conversion, the binary data will be displayed in the text box below the "Binary" section. You can easily copy it to the clipboard or download it as a .txt file.

Example of Base64 to Binary Conversion

Base64 Input: ZG12Z3NhZGU=

Binary Output: 0110010001101101011101100110011101110011011000010110010001100101

Why is it Important to Convert Base64 to Binary?

• Restores Original Data: Base64 is used for transmission, but the raw binary format is required by most applications to process data correctly. Converting it back ensures data integrity.
• Reduces Data Size: Base64 increases the size of data by about 33%. Converting it back to binary reduces storage requirements and improves processing efficiency
• Needed for Testing: Developers and testers need binary data to validate and simulate real-world scenarios accurately, ensuring proper functionality.
• Ensures Compatibility: Many systems and platforms require data in binary format. Converting Base64 back ensures seamless integration with these systems

What Are the Features of Base64 to Binary Converter?

The Base64 to Binary Converter offers several features which includes:

• Easy Conversion: Quickly and instantly Convert Base64 encoded data into plain binary format quickly.
• Auto-Update Option: If you enable Auto Update, the binary output will automatically show up as you enter your Base64 data. If you prefer manual control, simply uncheck the option and click Convert to Binary to convert Base64 into Binary.
• Upload from File: You can also upload your Base64 data from a .txt file by clicking the Upload Arrow icon. This is especially helpful for working with large files.
• Load via URL: Use the URL icon to load Base64 data directly from a URL. Just click the icon, a pop-up box will appear enter the URL in the box and press Enter. The tool will automatically fetch the Base64 data for you.
• Sample Input: Click the Add Sample icon to automatically insert a sample Base64 string into the input box. This lets you see how the tool works before adding your own data.
• Copy to Clipboard: Once the conversion is complete, you can easily copy the binary output to your clipboard with just one click.
• Download: If you want to save the converted binary data, click the Download icon to download it as a .txt file.

What Can You Do with the Base64 to Binary Converter?

• Convert Base64 to Raw Binary: Quickly transform Base64 encoded data into raw binary for further processing.
• Data Validation & Testing: QA engineers can use this tool to verify Base64 encoding and ensure that data integrity is maintained during conversions.
• Data Security & Obfuscation: Security experts often need to decode Base64 data to uncover hidden or obfuscated binary information. This tool is invaluable for decoding encoded files in security testing.
• Handle Large Data: This tool supports large Base64 inputs, making it suitable for handling extensive data and file conversions.

How to Convert Base64 to Binary in Javascript ?

To convert a Base64 encoded string into binary format in JavaScript, you can use JavaScript's native atob() function. This function decodes a Base64 string into raw byte data. Then, you can convert each byte into an 8-bit binary string using the charCodeAt() method. Here's how you can do it:

function base64ToBinary(base64) {
    // Decode Base64 string into a byte array
    const binary = atob(base64);
    
    // Convert byte array into binary string
    let binaryString = '';
    for (let i = 0; i < binary.length; i++) {
        binaryString += ('00000000' + binary.charCodeAt(i).toString(2)).slice(-8);
    }
    
    return binaryString;
}

// Example usage:
const base64String = "SGVsbG8gd29ybGQ=";  // Base64 encoded string for "Hello world"
const binaryData = base64ToBinary(base64String);
console.log(binaryData);  // Outputs the binary string