Quoted-Printable Encoder / Decoder

About this calculator

This tool converts text to and from Quoted-Printable (QP) encoding, a MIME transfer encoding that represents non-ASCII or special bytes as an equals sign followed by two hex digits (e.g. é becomes =C3=A9 in UTF-8), while leaving ordinary printable ASCII characters untouched so the text stays mostly human-readable.

Email developers and system administrators use it because QP is one of the two standard MIME encodings (alongside Base64) for sending 8-bit text like accented characters or non-Latin scripts safely over the traditionally 7-bit-only SMTP protocol, and it's commonly encountered when debugging raw email source or .eml files. Enter text to encode, or paste QP-encoded text to decode it back.