Base64 Encoder / Decoder

Convert UTF-8 text to Base64 strings and decode Base64/Base64URL payloads securely client-side.

Convert UTF-8 text to Base64 strings and decode Base64/Base64URL payloads securely client-side.

High-contrast command-line style encoder with RFC 4648 URL-safe options and byte length counters.

calcworks@cli: ~/base64 --encode

COMMAND-LINE ARCHETYPE

--url-safe (RFC 4648)

> STDIN [39 chars | 39 bytes]

> STDOUT [52 chars]

SGVsbG8gQ2FsY1dvcmtzIERldmVsb3BlciBOZXR3b3JrIDIwMjYh