Base64 encoding is a way to represent binary data in an ASCII string format by translating it into a radix-64 representation. It is often used to include small images in HTML, CSS, JavaScript, or anything else text-based. Here are 10 options for doing base64 encoding and decoding in 2023:
Python includes a base64 module that provides functions for base64 encoding and decoding. To encode a string, you can use the b64encode() function, and to decode a base64-encoded string, you can use the b64decode() function.
The base64 module is a built-in module in Python that provides functions for base64 encoding and decoding.
To use it, you will need to import the module using the following code:
To encode a string to base64, you can use the b64encode() function, which takes a byte-like object as input and returns the base64-encoded version as a string. For example:
import base64
encoded_string = base64.b64encode(b”Hello, World!”)
print(encoded_string) # Output: b’SGVsbG8sIFdvcmxkIQ==’
To decode a base64-encoded string, you can use the b64decode() function, which takes a base64-encoded string as input and returns the decoded version as a byte-like object.
For example:
import base64
decoded_bytes = base64.b64decode(b’SGVsbG8sIFdvcmxkIQ==’)
print(decoded_bytes) # Output: b’Hello, World!’
JavaScript includes the btoa() function for encoding a string to base64, and the atob() function for decoding a base64-encoded string. These functions are available in all modern web browsers.
To use btoa(), pass it a string as the argument, and it will return the base64-encoded version of the string. For example:
const encodedString = btoa(“Hello, World!”);
console.log(encodedString); // Output: “SGVsbG8sIFdvcmxkIQ==”
To use atob(), pass it a base64-encoded string as the argument, and it will return the decoded version of the string. For example:
const decodedString = atob(“SGVsbG8sIFdvcmxkIQ==”);
console.log(decodedString); // Output: “Hello, World!”
There are many online tools available for encoding and decoding base64, such as https://www.base64encode.org/ and https://www.base64decode.org/.
These tools allow you to input a string and receive the base64-encoded version, or input a base64-encoded string and receive the decoded version.
To use these tools, simply enter the string you want to encode or decode in the input field, and the tool will generate the corresponding output.
There are several command-line tools available for base64 encoding and decoding, such as base64, openssl, and uuencode.
These tools allow you to encode and decode files or strings from the command line.
To use the base64 command on Linux or macOS, you can use the following syntax:
# Encode a string to base64
echo “Hello, World!” | base64
# Decode a base64-encoded string
echo “SGVsbG8sIFdvcmxkIQ==” | base64 -D
To use the openssl command on Linux or macOS, you can use the following syntax:
# Encode a string to base64
echo “Hello, World!” | openssl base64
# Decode a base64-encoded string
echo “SGVsbG8sIFdvcmxkIQ==” | openssl base64 -d
To use the uuencode command on Linux or macOS, you can use the following syntax:
# Encode a string to base64
echo “Hello, World!” | uuencode -m –
# Decode a base64-encoded string
echo “begin-base64 644 -\nSGVsbG8sIFdvcmxkIQ==\n====” | uudecode
Most modern web browsers include a developer console that allows you to run JavaScript code. You can use the btoa() and atob() functions in the console to encode and decode base64 strings.
To access the developer console in most web browsers, you can right-click on the page and select “Inspect” or “Inspect Element” from the context menu, or use the keyboard shortcut Ctrl+Shift+I (on Windows) or Command+Option+I (on macOS).
Once the developer console is open, you can use the btoa() and atob() functions just like you would in a regular JavaScript script. For example:
const encodedString = btoa(“Hello, World!”);
console.log(encodedString); // Output: “SGVsbG8sIFdvcmxkIQ==”
const decodedString = atob(“SGVsbG8sIFdvcmxkIQ==”);
console.log(decodedString); // Output: “Hello, World!”
Java includes the java.util.Base64 class, which provides static methods for base64 encoding and decoding.
You can use the encode() and decode() methods to perform the encoding and decoding, respectively.
Java includes the java.util.Base64 class, which provides static methods for base64 encoding and decoding. To use it, you will need to import the class using the following code:
To encode a string to base64, you can use the encode() method, which takes a byte array as input and returns the base64-encoded version as a byte array.
You can then use the toString() method to convert the byte array to a string. For example:
import java.util.Base64;
byte[] encodedBytes = Base64.getEncoder().encode(“Hello, World!”.getBytes());
String encodedString = new String(encodedBytes);
System.out.println(encodedString); // Output: “SGVsbG8sIFdv
C# includes the System.Convert class, which provides the ToBase64String() method for encoding a string to base64, and the FromBase64String() method for decoding a base64-encoded string.
# includes the System.Convert class, which provides the ToBase64String() method for encoding a string to base64, and the FromBase64String() method for decoding a base64-encoded string.
To use these methods, you will need to import the System namespace using the following code:
To encode a string to base64, you can use the ToBase64String() method, which takes a byte array as input and returns the base64-encoded version as a string. For example:
using System;
string encodedString = Convert.ToBase64String(“Hello, World!”.ToCharArray().Select(c => (byte)c).ToArray());
Console.WriteLine(encodedString); // Output: “SGVsbG8sIFdvcmxkIQ==”
To decode a base64-encoded string, you can use the FromBase64String() method, which takes a base64-encoded string as input and returns the decoded version as a byte array.
You can then use the Encoding.ASCII.GetString() method to convert the byte array to a string. For example:
using System;
using System.Text;
byte[] decodedBytes = Convert.FromBase64String(“SGVsbG8sIFdvcmxkIQ==”);
string decodedString = Encoding.ASCII.GetString(decodedBytes);
Console.WriteLine(decodedString); // Output: “Hello, World!”
PHP’s base64_encode() and base64_decode() functions: PHP includes the base64_encode() function for encoding a string to base64, and the base64_decode() function for decoding a base64-encoded string.
To use these functions, simply pass them the string you want to encode or decode as the argument, and they will return the corresponding output. For example:
<?php
$encodedString = base64_encode("Hello, World!");
echo $encodedString; // Output: "SGVsbG8sIFdvcmxkIQ=="
$decodedString = base64_decode("SGVsbG8sIFd
PHP includes the base64_encode() function for encoding a string to base64, and the base64_decode() function for decoding a base64-encoded string.
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To use these functions, simply pass them the string you want to encode or decode as the argument, and they will return the corresponding output. For example:
<?php
$decodedString = base64_decode("SGVsbG8sIFdvcmxkIQ==");
echo $decodedString; // Output: "Hello, World!"
Ruby includes the Base64 module, which provides the encode64() method for encoding a string to base64, and the decode64() method for decoding a base64-encoded string.
To use these functions, simply pass them the string you want to encode or decode as the argument, and they will return the corresponding output. For example:
<?php
$decodedString = base64_decode(“SGVsbG8sIFdvcmxkIQ==”);
echo $decodedString; // Output: “Hello, World!”
The base64 command is available on most Linux system and allows you to encode and decode files or strings from the command line.
The base64 command is available on most Linux systems and allows you to encode and decode files or strings from the command line.
To use the base64 command, you can use the following syntax:
# Encode a string to base64
echo “Hello, World!” | base64
# Decode a base64-encoded string
echo “SGVsbG8sIFdvcmxkIQ==” | base64 -D
It is important to note that base64 encoding and decoding is often used as a simple way to obscure data, but it is not a secure method of encryption. If you need to protect the confidentiality of your data, you should use a more secure encryption method.