521. CL-ISBN
     CL-ISBN is a data format library for parsing, validating, and hyphenating International Standard Book Numbers (ISBNs)
522. cl-iso3166
     cl-iso3166 is a country units library providing data from ISO 3166 : Codes for the representation of names of countries and their subdivisions
523. cl-iso4217
     cl-iso4217 is a currency units library providing data from ISO 4217 : Codes for the representation of currencies and funds
524. cl-itertools
     Write iterators in CL in a way close to Python ones
525. cl-iup
     cl-iup is a binding for the IUP GUI library
526. CL-JavaScript
     CL-JavaScript is a JavaScript programming language compiler for Common Lisp
527. cl-jointgen
     CL-JOINTGEN is a Common Lisp implementation of the Joint Generation Algorithm for computing the dual of a monotone boolean function
528. cl-jpeg
     CL-JPEG (Common Lisp JPEG Library) can compress and decompress raster-images to/from the JPEG image file format
529. cl-jpl-util
     cl-jpl-util utilities library required by jpl-queues
530. cl-json
     cl-json is a JSON parser and generator

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