- omnigraffle
- ooc
- opa
- openapi
- openbsd
- openbsd-alt
- opencl
- opencv
- openexr
- opengl
- openindiana
- openoffice
- openpolicyagent
- openscad
- opensolaris
- openstack
- openvms
- openvpn
- openzfs
- org-mode
- os2
- owl
- ox
- oxygene
- oz
- p4
- pan
- papyrus
- parrot
- pascal
- patch
- patreon
- pawn
- pcd
- pegjs
- perl6
- phalcon
- phoenix
- photorec
- php
- phpunit
- phraseapp
- pickle
- pico-8
- picolisp
- pike
- pinescript
- pipenv
- pkgsrc
- platformio
- pm2
- pnpm
- pod
- pogoscript
- pointwise
- polymer
- pony
- postcss
- postscript
- pov-ray
- powerbuilder
- powerpc
- powershell
- precision
- precommit
- prettier
- prisma
- processing
- progress
- progress-old
- propeller
- pros
- proselint
- protractor
- pug
- pug-old
- pullapprove
- puppet
- pure
- purebasic
- purescript
- pypi
- pyret
- pytest
- pyup
- q
- qiskit
- qlikview
- qt
- quasar
- r
- racket
- raml
- rascal
- razzle
- rdata
- rdoc
- reactos
- readthedocs
- realbasic
- reason
- reasonstudios
- reasonstudios-alt
- rebol
- red
- red-old
- redux
- reek
- regex
- remark
- renovate
- rescript
- restql
- restructuredtext
- rexx
- rhino3d
- ring
- riot
- riot-old
- risc-v
- rmarkdown
- robotframework
- robotframework-old
- robots
- rollup
- rollup-old
- rspec
- rstudio
- rsync
- rubocop
- rubygems
- sac
- sage
- sails
- saltstack
- san
- sandbox
- sas
- sbt
- scheme
- scilab
- scilla
- scratch
- scrutinizer
- self
- semanticrelease
- sentry
- sequelize
- serverless
- service-fabric
- shadowcljs
- shellcheck
- shen
- shipit
- shippable
- shopify
- shuriken
- sigils
- silicongraphics
- silverstripe
- sinatra
- sketch
- sketchup-layout
- sketchup-make
- sketchup-stylebuilder
- slash
- smartos
- smartos-alt
- snapcraft
- snort
- snowpack
- snyk
- solidarity
- solidity
- sophia
- sorbet
- source
- spacemacs
- spacengine
- sparc
- spray
- sqf
- sqlite
- squarespace
- stan
- stata
- stdlibjs
- stencil
- stitches
- storybook
- storyist
- strings
- stylable
- styledcomponents
- stylelint
- stylishhaskell
- stylus
- stylus-orb
- stylus-s
- sublime