- ASN.1 - Abstract Syntax Notation #1, the Common Lisp implementation and language mapping
- cl-frugal-uuid - Common Lisp UUID library with zero dependencies
- cl-marshal - Simple and fast marshalling of all kinds of Lisp data structures
- cl-protobufs - CL-PROTOBUFS is a library to use Google Protocol Buffers in Common Lisp, originally written by Scott McKay at ITA by Google
- cl-stomp - cl-stomp is an implementation of STOMP (Streaming Text Orientated Messaging Protocol)
- dbus - A D-Bus client library for Common Lisp
- de.setf.thrift - de.setf.thrift is a binding for the Apache Thrift framework for scalable cross-language services development
- drx - An eXtensible Data Representation (XDR) implementation in Common Lisp
- jzon - A correct and safe(er) JSON RFC 8259 reader/writer with sane defaults
- S-PROTOBUF - S-PROTOBUF is a library to encode data in the Google Protocol Buffers wire format
- Swank - Swank is distributed as part of SLIME
- userial - A Common Lisp library for serializing to binary buffers
wire format
See also networking and data formats.