- Binary-types - Binary-types is a library for accessing binary format files with fixed bit-length code-words
- binascii - binascii is a binary format library for converting binary data to ASCII
- bintype - BINTYPE is a specification-driven parser generator for binary formats
- cl-binary-file - The binary file package contains utilities to read and write binary files
- cl-bson - BSON encoder/decoder for Common Lisp
- cl-pack - CL-PACK supplies Perl/PHP/Ruby/Python compatible pack() and unpack() functions to allow easy use of binary format protocols and files with the above mentioned languages and C
- cl-rfc4251 - cl-rfc4251 is a Common Lisp system, which provides support for parsing RFC 4251 encoded binary data, as described in the Data Type Representations Used in the SSH Protocols section of the document
- cl-wbxml - CL-WBXML reads and writes WAP Binary XML
- de.setf.utility - de setf utility is a collection of Common Lisp utilities functions and several purpose-specific libraries
- dso-binary-class - dso-binary-class allows you to declare classes with a specific binary disk layout, and then read and write instances easily
- fast-io - Fast-io is about improving performance to octet-vectors and octet streams (though primarily the former, while wrapping the latter)
- float-features - float-features is a portability library for IEEE float features that are not covered by the CL standard
- id3v2 - Parser for the ID3v2 binary format
- IE3FP - IE3FP is a library to code and decode floating point numbers in IEEE 754 binary format
- ieee-floats - IEEE-Floats provides a way of converting values of type float and double-float to and from their binary format representation as defined by IEEE 754 (which is commonly used by processors and network protocols)
- LISP-BINARY - A library to easily read and write complex binary formats
- nibbles - Nibbles is a library for accessing octet-addressed blocks of data
- odd-streams - ODD-STREAMS implements binary streams with "odd" byte sizes
- packer - The PACKER binary format library implements a "little language" for C-style structures, along the lines of Perl's pack() or Python's struct module
- simpbin - A library to store data in a simple binary format
- stl - Read binary triangle data from STL files
- stl-io - The stl-io library deals with reading and writing binary STL files
- swap-bytes - swap-bytes is a library for efficient endianness conversion in SBCL and CCL
- trivial-bit-streams - Trivial-bit-streams implements flexible buffered bit streams
binary format