Base64 Encoder/Decoder
Convert between strings and Base64 encoding, supports text input and file processing
What is Base64?
Base64 is an encoding method based on 64 printable characters to represent binary data. It converts every 3 bytes to 4 Base64 characters, commonly used for transmitting binary data in text protocols.
Application Scenarios
Base64 is widely used in email attachments, URL parameters, data URIs, small file storage and other scenarios. It ensures data is not corrupted or misinterpreted during transmission.
Encoding Characteristics
Base64 encoding increases data size by approximately 33% (every 3 bytes becomes 4 characters). It only contains A-Z, a-z, 0-9, +, /, = these 64 characters, ensuring safe transmission in most systems.
Security Notes
Base64 is not an encryption algorithm, it's just an encoding method. Encoded data can be decoded by anyone. Don't use Base64 to protect sensitive information, use real encryption algorithms instead.