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<title>FLOSS and FOSS - GNU Project - Free Software Foundation</title>
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<h2>FLOSS and FOSS</h2>
(削除) <p>by <strong>Richard Stallman</strong></p> (削除ここまで)
(追記) <address class="byline">by Richard Stallman</address> (追記ここまで)
<p>The two political camps in the free software community are the free
software movement and open source. The free software movement is a
campaign
for <a href="/philosophy/free-software-even-more-important.html">
computer users' freedom</a>; we say that a nonfree program is an
injustice to its users. The open source camp declines to see the
issue as a matter of justice to the users, and bases its arguments on
<a href="/philosophy/open-source-misses-the-point.html"> practical
benefits only</a>.</p>
<p>To emphasize that “free software” refers to freedom and
not to price, we sometimes write or say (削除) “free/libre (削除ここまで) (追記) “free (libre) (追記ここまで)
software,” adding the French or Spanish word that means free in
the sense of freedom. In some contexts, it works to use just
“libre software.”</p>
<p>A researcher studying practices and methods used by developers in
the free software community decided that these questions were
independent of the developers' political views, so he used the term
“FLOSS,” meaning “Free/Libre and Open Source
Software,” to explicitly avoid a preference between the two
political camps. If you wish to be neutral, this is a good way to do
it, since this makes the names of the two camps equally prominent.</p>
<p>Others use the term “FOSS,” which stands for
“Free and Open Source Software.” This is meant to mean the
same thing as “FLOSS,” but it is less clear, since it
fails to explain that “free” refers to <em>freedom</em>.
It also makes “free software” less visible than
“open source,” since it presents “open source”
prominently but splits “free software” apart.</p>
(追記) <p>“Free and Open Source Software” is misleading in
another way: it suggests that “free and open source” names
a single point of view, rather than mentioning two different ones.
This conceptualization of the field is an obstacle to understanding
the fact that free software and open source are different political
positions that disagree fundamentally.</p> (追記ここまで)
<p>Thus, if you want to be neutral between free software and open
source, (追記) and clear about them, (追記ここまで) the way to achieve that is to say
“FLOSS,” not “FOSS.”</p>
<p>We in the free software movement don't use either of these terms,
because we don't want to be neutral on the political question. We
stand for freedom, and we show it every time—by saying
“free” and (削除) “libre”.</p> (削除ここまで) (追記) “libre”—or “free
(libre).”</p>
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<p>Copyright © (削除) 2013 (削除ここまで) (追記) 2013, 2015, 2016, 2021 (追記ここまで) Richard Stallman</p>
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<p class="unprintable">Updated:
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$Date: 2025年12月29日 04:34:58 $
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