# Write the decoded image data to a new file Here’s an example of decoding a Base64 encoded image string back to its original binary data: # Define the Base64 encoded image stringĮncoded_image_string = "Base64 Encoded Image String Here."Įncoded_image_bytes = encoded_image_string.encode('utf-8')ĭecoded_image_data = base64.b64decode(encoded_image_bytes) If you’re working with binary data like images or files, you can skip the text encoding and decoding steps. Finally, we converted the decoded bytes back to a string using the decode() method.Īs with encoding, the base64.b64decode() function accepts input data in bytes format. Then, we used the base64.b64decode() function to decode the bytes into the original byte string. In this example, we first converted the Base64 encoded string into bytes using the encode() method with the ‘utf-8’ encoding. Print("Decoded String: ", decoded_string) In this section, we’ll explore how to decode a Base64 encoded string using Python’s base64 library.įirst, let’s see how to decode a Base64 encoded string back to text: import base64Įncoded_string = "SGVsbG8sIEJhc2U2NCENCg="Įncoded_bytes = encoded_string.encode('utf-8')ĭecoded_bytes = base64.b64decode(encoded_bytes)ĭecoded_string = decoded_code('utf-8') Base64 Decoding in PythonĪfter encoding data into Base64 format, you might want to decode it back to the original binary data or text. In this example, we read the image file as binary data using the “rb” (read binary) mode, and then directly encoded the binary data using the base64.b64encode() function. Print("Base64 Encoded Image String: ", encoded_image_string) With open("image.jpg", "rb") as image_file:Įncoded_image = base64.b64encode(image_data)Įncoded_image_string = encoded_code('utf-8') Here’s an example of encoding an image file to a Base64 string: # Read the image as binary data It’s important to note that the base64.b64encode() function accepts input data in bytes format, so if you’re working with binary data like images or files, you can skip the text encoding and decoding steps. Finally, we converted the encoded bytes back to a string using the decode() method. Then, we used the base64.b64encode() function to encode the bytes into a Base64 encoded byte string. In this example, we first converted the input text string into bytes using the encode() method with the ‘utf-8’ encoding. Output: Base64 Encoded String: SGVsbG8sIEJhc2U2NCENCg= Print("Base64 Encoded String: ", encoded_string) Input_bytes = input_string.encode('utf-8')Įncoded_bytes = base64.b64encode(input_bytes)Įncoded_string = encoded_code('utf-8') Now let’s see how to encode a simple text string into a Base64 encoded string: # Define the input text string In this section, we’ll focus on how to encode binary data using the base64 library.įirst, you need to import the base64 library: import base64 Python comes with a built-in library called base64 that provides various functions to perform Base64 encoding and decoding. By the end of this tutorial, you will have a solid understanding of Base64 encoding and decoding in Python and be able to apply this knowledge in your own projects. We will cover various examples, including working with images and binary files, handling common errors and issues, and exploring real-world applications of Base64. In this tutorial, we will learn how to use Python’s built-in base64 library to perform encoding and decoding operations on binary data. Since the resulting string only contains 64 different characters (hence the name Base64), it is considered safe for use in most text-based systems. This process is performed by dividing the 24 bits into four groups of six bits each, and then using a pre-defined lookup table to map each group of bits to a specific ASCII character. The Base64 encoding scheme works by taking three bytes of binary data (24 bits) and converting them into four ASCII characters (each represented by 6 bits). Base64 encoding is particularly useful when you need to transmit binary data over a medium that only supports textual data. It is designed to ensure that the resulting string only contains a set of characters that are safe to use in various environments, such as URLs, email attachments, and even embedding within XML documents or JSON payloads. Base64 is a widely used encoding scheme that represents binary data in an ASCII string format.
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