sqlitebck
Producator: Piotr Husiatynski
Licenta: MIT License

sphc
Producator: Shekhar Tiwatne
Licenta: MIT License

Sprockets
Producator: Sam Stephenson
Licenta: MIT License

SCSS (former SASS)
Producator: SASS Development Team
Licenta: MIT License

scssphp
Producator: Leaf Corcoran
Licenta: MIT LicenseGPL - GNU General Public License

SPDY Server for node.js
Producator: Fedor Indutny
Licenta: MIT License

SQL Parser
Producator: Forward
Licenta: MIT License

Simple Grid
Producator: Dallas Bass
Licenta: Other Free / Open Source License

sc2epub
Producator: Takada At
Licenta: Other Free / Open Source License

SeaJS
Producator: Frank Wang
Licenta: MIT License

StorEvil
Producator: Dave Foley
Licenta: Other Free / Open Source License - WTFPL License

SproutCore
Producator: Strobe Inc. and contributors
Licenta: MIT License

Shopify API (Ruby)
Producator: Shopify
Licenta: MIT License

sorrow.js
Producator: Sam L
Licenta: BSD License

Science.js
Producator: Jason Davies
Licenta: BSD License

SharpZipLib
Producator: IC#Code
Licenta: GPL - GNU General Public License

SoundCloud Java API wrapper
Producator: SoundCloud
Licenta: MIT License

StyleTidy
Producator: Rico Sta. Cruz
Licenta: MIT License

Sizzle
Producator: John Resig
Licenta: MIT LicenseBSD License - BSD LicenseGPL - GNU General Public License

speedyxml
Producator: kilroy
Licenta: LGPL - GNU Lesser General Public License

Skypekit
Producator: Railsware
Licenta: MIT License

Scaffy
Producator: Railsware
Licenta: Other Free / Open Source License

SilverSmith
Producator: Aaron Carlino
Licenta: Other Free / Open Source License

sqlpuzzle
Producator: Michal Horejsek
Licenta: GPL - GNU General Public License