- CL-MIME - CL-MIME is a library for constructing and manipulating MIME objects in Common Lisp
- cl-qprint - cl-qprint is a library for encoding to and decoding the quoted-printable (MIME) data format
- CL-RFC2047 - CL-RFC2047 impements the encoding described by RFC 2047 (MIME)
- CLPMR - CLPMR is the Common Lisp ProcMail Replacement
- media-types - Query and compare media types
- MIME4CL - MIME4CL allows you to craft MIME compliant messages or to parse and handle them programmatically
MIME
MIME, Multipurpose
Internet Mail Extensions, provides extensions to plain text Internet Mail messages defined in RFC 822 to provide for a wider range of content types. MIME is also used for multipart/form-data posts in HTML