Base64 Encode and Decode: Text and Binary File Conversion Guide
Understand how Base64 encodes binary data into 64 printable ASCII characters for reliable network transport, API payloads, and Data URIs.
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What is Base64?
Base64 is a binary-to-text encoding scheme that translates raw bytes into a designated set of 64 ASCII characters (A-Z, a-z, 0-9, +, and /) to prevent data corruption across legacy protocols.
Important Distinction: Base64 is an encoding format, not an encryption method. It provides zero confidentiality on its own.
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β Frequently Asked Questions (FAQ)
Does Base64 increase overall file size? βΎ
Yes, because every 3 bytes of raw data are mapped to 4 ASCII characters, Base64 increases data size by approximately 33%.