Base64 Encoder / Decoder
Text ↔ Base64 live. Drop in a file for file-to-Base64. URL-safe variant included.
About Base64
Base64 encodes arbitrary binary data using only 64 printable ASCII characters (A-Z, a-z, 0-9, +, /, with = for padding). It's used to embed images in emails and HTML, to pass binary through JSON, to encode JWTs, and to store binary fields in text-only databases.
URL-safe Base64 replaces + with - and / with _ and drops padding — so you can put it in a URL without percent-encoding.