Letter: J
- jabberd-2.0-0.s10.8.al2: OpenSource server implementation of the Jabber protocols
- jam-2.5-2.al2: Program construction tool, similar to make
- jam-2.5-3.al2: Program construction tool, similar to make
- jasper-1.701.0-9.al2: Implementation of the JPEG-2000 standard, Part 1
- jasper-1.701.0-15.al2: Implementation of the JPEG-2000 standard, Part 1
- jhead-2.4-2.al2: Tool for displaying EXIF data embedded in JPEG images
- jhead-2.4-3.al2: Tool for displaying EXIF data embedded in JPEG images
- jikes-1.22-1: A Java source file to bytecode compiler
- jlint-1.21-1: Java program checker
- john-1.6-2: John the Ripper password cracker
- jpgraph-1.16-2: An OO graph drawing class library for PHP
- js-1.5-2.al2: JavaScript interpreter and libraries