Base64 Text Encoder & Decoder
100% In-Browser · Never UploadedEncode and decode plain text to and from Base64. Full UTF-8 support ensures international scripts, characters, and emoji do not corrupt.
Documentation & Technical Boundaries
Supports both standard Base64 (+ / =) and RFC 4648 URL-safe Base64 (- _ without padding).
Does it handle multi-byte UTF-8?
Yes. It converts UTF-8 bytes directly, avoiding encoding corruption.