sigrid/9pro: Plan 9-related tools for Unix-like operating systems.
sigrid/aacdec: audio/aacdec for Plan 9
sigrid/aacenc: audio/aacenc for Plan 9
sigrid/atlas: Creates an atlas texture out of smaller images and dumps as Plan 9 image and mapping between those.
sigrid/aubio: A library for audio and music analysis, port to Plan 9
sigrid/bar: (ships with 9front) A small bar with battery charge, date and time, for Plan 9.
sigrid/bench9: Benchmarking for 9.
sigrid/c9: Low-level 9p client and server in C.
sigrid/cflood: "Color Flood" game clone for Plan 9.
sigrid/dav1d: AV1 decoder library port for 9.
sigrid/dumb: audio/moddec: module music decoder for Plan 9
sigrid/evdump: (ships with 9front) Report input events on 9front.
sigrid/ext4srv: (ships with 9front) Read/write file server for Ext2, Ext3 and Ext4 file systems with journaling and extents support.
sigrid/femtolisp: A portable, compact interpreter for a minimal lisp/scheme dialect.
sigrid/flite: Text to speech for Plan 9, port of flite
sigrid/fontsel: (ships with 9front) Font selector for Plan 9.
sigrid/ft2-clone: FastTracker II clone port for Plan 9
sigrid/ft2play: audio/ft2dec for Plan 9. Decodes XM/MOD/FT.
sigrid/gemnine: Gemini browser for Plan 9.
sigrid/h264bsd: H264 baseline decoder library for Plan 9.
sigrid/hantro9: Hantro G1/G2 VPU tools for 9front
sigrid/hj264: H.264 video capture & encoding for Plan 9
sigrid/hx: A faster version of "hexdump -C".
sigrid/imgtools: Some random image-related tools.
sigrid/itdec: ImpulseTracker module decoder.
sigrid/jacksense: A small program to track whether headphones are connected to jack or not, and switch between speaker and headphones output accordingly.
sigrid/jbig2: JBIG2 decoder for Plan 9.
sigrid/jp2: JPEG2000 decoder for Plan 9.
sigrid/jxl: JPEG XL decoder for Plan 9
sigrid/leaf: Lightweight Embedded Audio Framework
sigrid/libsamplerate: Port of libsamplerate to Plan 9.
sigrid/libtags: (ships with 9front) A cross-platform library for reading tags, designed for highly constrained environments.
sigrid/libvpx: libvpx (vp8/vp9 library) for Plan 9
sigrid/lwext4: A C library for Ext2/Ext3/Ext4 file system operations. Plan 9 port.
sigrid/mcfs: A tool for working with media container formats.
sigrid/microui: A tiny, portable, immediate-mode UI library written in ANSI C. Plan 9 version.
sigrid/minivmac: A 9front port of minivmac, an emulator of classical Mac computers.
sigrid/mkfaces: Some kind of Gravatar `face(6)` fetcher for Plan 9?
sigrid/mp3dec: A (better) drop-in replacement for audio/mp3dec.
sigrid/neindaw: Some kind of DAW for 9front? An ongoing effort.
sigrid/npe: Native Porting Environment for Plan 9
sigrid/nvi: Download a youtube video on Plan 9
sigrid/openh264: openh264 port to 9front
sigrid/orca: Plan 9 port of ORCΛ, an esoteric programming language-sequencer for music.
sigrid/pc: Programmer's calculator pc(1) ported to Unix-like OS
sigrid/pdffs: PDF as a file system. WIP
sigrid/picker: HSLuv, HPLuv, and RGB color picker for Plan 9.
sigrid/pitch: A simple voice pitch analyzer.
sigrid/pt2-clone: ProTracker 2 clone, ported to Plan 9
sigrid/qoistream: QOI livestreamer
sigrid/riow: (ships with 9front) Some kind of window management experiments with rio.
sigrid/rtmp: RTMP client for Plan 9
sigrid/snippets: Various code snippets and scripts for 9front.
sigrid/soundpipe: SoundPipe port to 9front (npe)
sigrid/sox: SoX, Swiss Army knife of sound processing. A port to 9front
sigrid/tocursor: Converts a Plan 9 image to Cursor C structure.
sigrid/treason: A video player for 9front.
sigrid/xmpp: XMPP client for Plan 9.
sigrid/zuke: (ships with 9front) A music player for Plan 9.

sirjofri

sirjofri/arcs: scratch hologram gcode generator
sirjofri/blie: blended layer image editor
sirjofri/drawterm-fdroid: android drawterm for fdroid
sirjofri/eesp: eenter snarf/paste
sirjofri/epublish: e-publishing tools
sirjofri/fingerd: plan 9 finger server
sirjofri/fractals: fractals
sirjofri/gpufs: gpufs and spirvd
sirjofri/gpufswip: gpu filesystem iwp9
sirjofri/gridirc: gridchat irc wrapper
sirjofri/libgit: git C library
sirjofri/libini: parse ini files
sirjofri/libnate: UI framework inspired by Slate
sirjofri/livedoc: live plumb troff documents
sirjofri/news2atom: news2atom
sirjofri/notif: notification system built around plumber
sirjofri/nstats: stats for console output
sirjofri/plumbto: gui plumb selector
sirjofri/pronterfs: 3d printer filesystem
sirjofri/puzzles: port of simon tatham puzzle collection
sirjofri/rssfill: rssfill
sirjofri/sergui: (somewhat) serious guide to 9front
sirjofri/sirjofri_de: sirjofri.de
sirjofri/spirva: spirv assembler
sirjofri/spread: spreadsheet editor
sirjofri/todofs: todo filesystem
sirjofri/totp: totp client
sirjofri/touchuichal: paper touch ui challenges
sirjofri/vcardfs: vcard filesystem for plan 9
sirjofri/webbox: expose trusted web companion
sirjofri/winview: visual winwatch
sirjofri/xml-9atom: xml tools from 9atom
sirjofri/xmltools: xml tools
sirjofri/zet: Zettelkasten for acme

sl

sl/1f300: 1F300, by Stanley Lieber
sl/1oct1993: 1OCT1993, by Stanley Lieber
sl/300c300d: 300C300D, by Stanley Lieber
sl/9bbs: citadel style bbs for plan 9, written in rc
sl/barf: werc app (blog, image, etc.)
sl/bmothra: sl's fork of stock 9front mothra.
sl/maude_mold: Maude Mold, by Stanley Lieber
sl/no_memory: no_memory, by Stanley Lieber
sl/reverse_crime: REVERSE CRIME, by Stanley Lieber
sl/rrss: rrss, trrss - RSS feed readers
sl/thrice_great_hermes: Thrice Great Hermes, by Stanley Lieber

slashscreen

slashscreen/ricket: A WASM runtime for plan 9

smj

smj/bootcamp: SDF Plan9 BootCamp
smj/figlet: figlet - text banner generator of a variety of typefaces
smj/rc: various rc scripts
smj/schnek: schnek - chase down decaying food before you starve.

taw

tevo

tevo/cc65-plan9: Port of the cc65 65(C)02 development toolchain
tevo/cuefs: Plan 9 filesystem for mounting cuesheets as a set of separate files
tevo/diskcheck: Incomplete badblocks workalike for Plan 9
tevo/doll: Plan 9 a.out → DOL converter
tevo/pointless: Small static website generator
tevo/prismriver: (Skeleton for) a Plan 9 audio synthesis library
tevo/waffle: Simple but flexible gopher server for Plan 9
tevo/widget: Small widget library for Plan 9

thedaemon

thedaemon/dpaint: fork of paint(1)
thedaemon/rc: rc scripts

unobe

9front drawterm with some OS X improvements