Copyfree Software
This page is a work in progress, and includes copyfree or public domain software choices organized alphabetically by category:
- Audio Production and Editing
- Cryptography
- Database
- Design or Fabrication Tool
- Entertainment
- Graphics
- Inferno/P9 Software
- Media Player
- Network Client or Analysis Tool
- Office Tool
- Operating System
- Parser
- Programming Language Implementation or Environment
- Security Tool
- Server
- Terminal Emulator, Multiplexer, or Shell
- Text Tool
- Version Control
- Web/XML Browser
- Web Content Management
- Window Manager or GUI Environment
- X Tool
- Other
The license status listed for each piece of software is the "primary" license under which it is distributed. In several cases, parts of the software package may be distributed under other licenses -- potentially even non-copyfree licenses, as in the case of all BSD Unix items currently in the Operating System category, which are generally distributed with a number of non-copyfree tools, including GNU utilities.
Because of the potential for project maintainers mislabeling their license choices or nonspecifically identify their licenses (a particular problem with BSD license variants), a reference item has been added to many entries, linking to a reference to the source of licensing information for the project. In some cases, a statement about the license used has not been verified, or a nonspecific identification of a license has not been successfully checked for specifics; let the buyer beware. Please submit any references for license information you may find so that incomplete, nonspecific, or unreferenced entries can be updated. You are also encouraged to submit projects not included in this list (with information about licensing) if they use copyfree licenses as their primary project licenses.
Audio Production and Editing
Cryptography
axTLS: Revised BSD License (note: text matches Revised BSD License; format differs)
netpgp: BSD License
OpenPGP SDK: BSD License
OpenSSH: BSD License
Tom Zerucha's OpenPGP: BSD License
Database
Lightning Memory-Mapped Database: OpenLDAP License 2.8 (reference)
PostgreSQL: BSD License
Design or Fabrication Tool
- Magic: hybrid BSD/MIT license
Entertainment
Graphics
Inferno/P9 Software
Network Client
Media Player
herrie: BSD License
Office Tool
Operating System
AerieBSD: BSD licenses and ISC License
Bitrig: BSD licenses and ISC License
DesktopBSD: BSD License
DragonFly BSD: BSD License
FreeBSD: BSD License
NetBSD: BSD License
OpenBSD: BSD licenses and ISC License
PC-BSD: BSD License
Parsers
Programing Language Implementation or Environment
ANTLR: BSD License
Gauche: BSD License
Glasgow Haskell Compiler: BSD License
Hugs: BSD License
LLVM: University of Illinois/NCSA Open Source License (reference)
Selected LLVM projects:
Portable C Compiler: BSD License
Scala: BSD License
Scheme 48: BSD License
Sizzle: Multi-Licensed MIT/X11 License or Revised BSD License
TenDRA: BSD License (defunct)
TinyScheme: BSD License
V8: BSD License
Yasm: BSD License
Ypsilon Scheme: BSD License
Security Tool
Server
Terminal Emulator, Multiplexer, or Shell
Text Tool
AkelPad: BSD License
Diakonos: MIT/X11 License
EMACS clones:
International Components for Unicode: ICU License (reference)
vi clones:
- nvi: BSD License
Version Control
- Fossil: BSD License
Web/XML Browser
Web Content Management
Serendipity: BSD License
SMF: Revised BSD License with warranty disclaimer separated (reference)
Textpattern: BSD License
TiddlyWiki: BSD License
WackoWiki: BSD License
Window Manager or GUI Environment
Special thanks are due Giles Orr and his Comprehensive List of Window Managers for Unix for making a lot of the work in compiling this list easy.
AHWM: AHWM License
Bluetile: BSD License
Enlightenment: BSD License
euclid-wm: BSD License
FVWM, OpenBSD Distribution: BSD License
Golem X11 WM: BSD-style License
i3: BSD License
phluid: BSD License
WMFS: BSD License
XD640: BSD License
xmonad: BSD License
X Tool
Other
I2P:
I2P Addressbook: MIT/X11 License (reference)
I2P Installer: public domain (reference)
I2P Ministreaming: Simplified BSD License (reference)
I2P Router: public domain (reference)
I2P SAM Bridge: public domain (reference)
I2P SAM C Library: Simplified BSD License (reference)
I2P SAM C# Library: public domain (reference)
I2P SAM Python Library: public domain (reference)
I2P SDK: public domain (reference)