What is the difference between free software and open source software?

Free software and open source software are two distinct concepts, although they share similarities. Free software refers to software that respects users' freedom, allowing them to run, study, modify, and distribute the software as they desire. This aspect emphasizes the users' rights and ethical values. On the other hand, open source software primarily focuses on the practical benefits of collaborative development, highlighting the availability of source code for public use and modification. While both free software and open source software provide users with the freedom to access the source code, free software places particular emphasis on users' freedoms and the ethical aspects of software distribution. Ultimately, the difference lies in the underlying philosophy and the emphasis each places on user rights and community collaboration.