Base64 text encoder / decoder

Convert UTF-8 text to standard Base64 and back.

Text Stateless

Maximum text length: 65,536 Unicode code points.

How it works and examples

Example: Hello becomes SGVsbG8=. Decoding accepts ASCII whitespace and requires standard, correctly padded Base64 containing valid UTF-8 text. URL-safe Base64 and binary files are not supported. Encoding is not encryption.