Base64 -> Binary Converter

About Base64 <-> Binary String Conversion

This tool converts data between Base64 (or Base64URL) encoding and its binary string representation (a sequence of '0's and '1's). Base64 is an encoding scheme that translates binary data into a text format, while a binary string is the most fundamental representation of data in computers. This conversion is useful for visualizing the bit patterns of Base64 encoded data or for preparing binary strings for Base64 encoding.

Why Use This Tool?

Use this tool when you need to: understand the exact bit-level representation of a Base64 string; convert a sequence of 0s and 1s (representing binary data) into a Base64 string for text-based transmission; or debug issues related to binary data encoding. It's particularly helpful for educational purposes or low-level data analysis.

Example Use Cases

• Converting a small Base64 encoded token to its binary string to inspect individual bits.
• Taking a binary string representing a custom data packet and encoding it to Base64 for sending via a text-based API.
• Verifying the binary output of a hardware device that has been Base64 encoded for logging.
• Learning how Base64 encoding maps to binary patterns.

Pro Tips

• Binary Input Length: When converting from a binary string to Base64, ensure your binary string's length is a multiple of 8 (as data is typically processed in bytes). The tool will warn if it's not, as this usually indicates an incomplete byte.
• Binary Output Formatting: When converting from Base64 to a binary string, you can choose to have the output bytes separated by spaces for easier readability of byte boundaries.
• Character Validation: The tool validates inputs. Binary strings should only contain '0' and '1'. Base64 inputs are checked for valid Base64 or Base64URL characters and padding.