Free software or libre software or libreware is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, not price; all users are legally free to do what they want with their copies of a free software regardless of how much is paid to obtain the program. Computer programs are deemed "free" if they give end-users ultimate control over the software and, subsequently, over their devices.
The Open Source Initiative (OSI) is the steward of the Open Source Definition, the set of rules that define open source software. It is a California public-benefit nonprofit corporation, with 501(c)(3) tax-exempt status.
The Open Software Foundation (OSF) was a not-for-profit industry consortium for creating an open standard for an implementation of the operating system Unix. It was formed in 1988 and merged with X/Open in 1996, to become The Open Group.
Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose. Open-source software may be developed in a collaborative, public manner. Open-source software is a prominent example of open collaboration, meaning any capable user is able to participate online in development, making the number of possible contributors indefinite. The ability to examine the code facilitates public trust in the software.
The Free Software Foundation Europe (FSFE) is an eingetragener Verein incorporated under German law. It was founded in 2001 to support all aspects of the free software movement in Europe, with registered chapters in several European countries. It is the European sister organization of the US‑based Free Software Foundation (FSF), although each foundation exists as a separate organization. Following the return of Richard Stallman to the FSF in 2021, the FSFE declared themselves "unable to collaborate" with the FSF.
The O'Reilly Open Source Convention (OSCON) was an American annual convention for the discussion of free and open-source software. It was organized by publisher O'Reilly Media and was held each summer, mostly in Portland, Oregon, from 1999 to 2019.
Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software. This is in contrast to proprietary software, where the software is under restrictive copyright licensing and the source code is usually hidden from the users.
A Freedom Toaster is a public kiosk that will burn copies of free software onto user-provided CDs and DVDs.
In the 1950s and 1960s, computer operating software and compilers were delivered as a part of hardware purchases without separate fees. At the time, source code, the human-readable form of software, was generally distributed with the software providing the ability to fix bugs or add new functions. Universities were early adopters of computing technology. Many of the modifications developed by universities were openly shared, in keeping with the academic principles of sharing knowledge, and organizations sprung up to facilitate sharing. As large-scale operating systems matured, fewer organizations allowed modifications to the operating software, and eventually such operating systems were closed to modification. However, utilities and other added-function applications are still shared and new organizations have been formed to promote the sharing of software.
Linux began in 1991 as a personal project by Finnish student Linus Torvalds to create a new free operating system kernel. The resulting Linux kernel has been marked by constant growth throughout its history. Since the initial release of its source code in 1991, it has grown from a small number of C files under a license prohibiting commercial distribution to the 4.15 version in 2018 with more than 23.3 million lines of source code, not counting comments, under the GNU General Public License v2.
A Linux User Group or Linux Users' Group (LUG) or GNU/Linux User Group (GLUG) is a private, generally non-profit or not-for-profit organization that provides support and/or education for Linux users, particularly for inexperienced users. The term commonly refers to local groups that meet in person but is also used to refer to online support groups that may have members spread over a very wide area and that do not organize, or are not dependent on, physical meetings. Many LUGs encompass FreeBSD and other free-software / open source Unix-based operating systems.
The Freedom Forum is a nonpartisan 501(c)(3) foundation dedicated to fostering First Amendment freedoms for all. The organization advances First Amendment freedoms through programs that include Today's Front Pages, the Power Shift Project, the annual Al Neuharth Free Spirit and Journalism Conference for high school juniors, annual First Amendment Festival, Free Expression Awards and other conferences. Freedom Forum operated the Newseum in Washington, D.C. until 2019, when it sold the building to Johns Hopkins University.
The Document Foundation (TDF) is a non-profit organization that promotes open-source document handling software. It was created by members of the OpenOffice.org community to manage and develop LibreOffice, a free and open-source office suite, and is legally registered in Germany as a Stiftung. Its goal is to produce a vendor-independent office suite with ODF support in a development environment free from company control.
Fórum Internacional de Software Livre (FISL) is an event sponsored by Associação SoftwareLivre.org, a Brazilian NGO that, among other goals, seeks the promotion and adoption of free software. It takes place every year in Porto Alegre, the capital of Rio Grande do Sul.
Free Software Foundation Tamil Nadu is a not-for-profit organisation formed in 2008 as a part of Free Software Movement of India (FSMI). This organisation is a social movement that works towards enlightening the masses with the essence of free software and to liberate knowledge. FSFTN organises different workshops and seminars in Tamil Nadu among the youth to spread the idea of knowledge liberation.
The first open-source software project in Kosovo was the adjustment of the Open Office Packet in December 2003.
DigitalOcean Holdings, Inc. is an American multinational technology company and cloud service provider. The company is headquartered in New York City, New York, USA, with 15 globally distributed data centers. DigitalOcean provides developers, startups, and SMBs with cloud infrastructure-as-a-service platforms.
Digital Freedom Foundation (DFF) is a non-profit organization established in 2004. The group is the lead organizer of Software Freedom Day, and Hardware Freedom Day, as well as other "freedom days".
Education Freedom Day (EFD) is an international event launched by the Digital Freedom Foundation in 2013. It's annually observed on March 21. It is similar to other Freedom Days, namely Software, Hardware and Culture Freedom Day. The goal of EDF is spread knowledge and awareness regarding the benefits of using free software and free educational resources for education.
