Base64 Codec
// Encode or Decode strings instantly. 100% Private.
Plain Text / Raw Data
Base64 Encoded
// Deep Dive: Base64 Encoding
_how_it_works
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to embed images in HTML or transmit data through protocols that only support text.
_privacy_assurance
This tool uses the native `btoa()` and `atob()` browser APIs. Your data is processed entirely on your machine. We never upload your strings to any server, making it safe for API tokens and configuration strings.
_common_use_cases
Developers use Base64 to encode basic auth headers, embed small assets in CSS/HTML, or handle non-ASCII characters in URLs. It increases file size by roughly 33% but ensures data integrity across different systems.