A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| Port | Category | Description |
|---|---|---|
| JLS | books | Oracle's official Java language specification |
| JVMS | books | Sun's official Java VM Specification, 2nd Ed. |
| jBCrypt | java | BCrypt library for Java |
| ja-funetfonts | fonts | extra japanese fonts, marumoji |
| ja-kanjistrokeorders-ttf | fonts | font to view stroke order diagrams for Kanji, Kana and etc |
| ja-sazanami-ttf | fonts | japanese true type fonts |
| ja2-stracciatella | games | Jagged Alliance 2 turn-based strategy game engine |
| jacal | math | symbolics math system |
| jack | audio | low latency sound server |
| jadx | devel | dex to java decompiler |
| jag | games | arcade-puzzle game |
| jaldi | fonts | libre Devanagari typeface family |
| jam | devel | build utility like make |
| janet | lang | functional and imperative programming language |
| jansson | devel | library for manipulating JSON data |
| japana | www | proxy that can transliterate japanese |
| jasper | graphics | reference implementation of JPEG-2000 |
| javaPathHelper | java | helper script for launching java applications |
| jbig2dec | graphics | decoder for JBIG2 monochrome hi-res image compression format |
| jbigkit | graphics | lossless image compression library, with lightweight version |
| jbrickshooter | games | brick shooter reflexion game |
| jday | astro | astronomical julian date calculator |
| jed | editors | text editor |
| jefferson | sysutils | JFFS2 filesystem extraction tool |
| jesred | www | squid redirector |
| jetbrains-mono | fonts | monotype font for developers |
| jftpgw | net | FTP proxy |
| jgmenu | x11 | freedesktop-compliant menu for openbox and tint2 |
| jhead | graphics | Exif jpeg camera setting parser and thumbnail remover |
| jikes | lang | compile Java source into .class files (quickly!) |
| jimarc4random | devel | arc4random for Jim |
| jimtcl | lang | small footprint implementation of Tcl |
| jira-cli | productivity | interactive Jira command line |
| jitsi | meta | meta package for all Jitsi Meet components |
| jjui | devel | terminal user interface for Jujutsu |
| jless | textproc | JSON viewer |
| jlint | java | Java program analyzer and checker |
| jmigpin-editor | editors | graphical acme-like text editor |
| jmk-fonts | fonts | nice fixed width fonts, easy on the eye |
| jna | java | Java Native Access (JNA) |
| jnettop | net | capture network traffic, display streams sorted by bandwidth |
| jo | textproc | JSON output from a shell |
| joe | editors | Joe's Own Editor |
| john | security | extremely fast password cracker |
| john-jumbo | security | extremely fast password cracker, with community patches |
| josm | geo | OpenStreetMap map editor |
| jove | editors | Jonathan's Own Version of Emacs |
| jpeg | graphics | SIMD-accelerated JPEG codec replacement of libjpeg |
| jpeg2ps | graphics | convert jpeg to compressed PostScript |
| jpegdump | graphics | dump raw jpeg exif information |
| jpeginfo | graphics | prints information and tests integrity of JPEG files |
| jpegoptim | graphics | utility to optimize jpeg files |
| jpegpixi | graphics | jpeg pixel interpolator |
| jq | textproc | lightweight and flexible command-line JSON processor |
| jrnlc | productivity | opinionated command line journal |
| jruby | lang | pure-Java implementation of the Ruby language |
| json-c | devel | JSON implementation in C |
| json-glib | devel | JSON parser for GLib-based libraries and applications |
| jsoncpp | devel | JSON parsing C++ API |
| jsonrpc-glib | devel | JSON-RPC library for GLib |
| jujutsu | devel | version control system with git compatibility backend |
| juliamono | fonts | typeface carefully crafted & designed for computer screens |
| julius | games | open source re-implementation of Caesar III game engine |
| jumpnbump | games | game of cute bunnies jumping on each other's heads |
| junicode | fonts | advanced Unicode font for medievalists |
| jupyter-console | devel | Jupyter terminal console |
| jupyter-notebook | www | web-based notebook for interactive computing |
| jupyterlab | www | Jupyterlab computational environment |
| just | sysutils | tool for running project-specific commands |
| jwm | x11 | Joe's Window Manager |
| jxplorer | databases | standards compliant LDAP browser |