Essay: Selling Free Software

Overview

"Selling Free Software" is a short essay by Richard Stallman that addresses a persistent misunderstanding about the free software movement: the word "free" refers to freedom, not price. Stallman explains that people are fully allowed to charge money for copies of free software, for installation, support, customization, or distribution. What matters is not whether software costs money, but whether users have the four essential freedoms to run, study, modify, and redistribute it.

The essay begins by correcting the common assumption that free software must be given away at no cost. Stallman argues that this confusion harms the movement because it makes freedom seem incompatible with business. In reality, charging for copies is completely consistent with free software, just as charging for services around the software is. A distributor may sell a copy for any price, and the buyer still receives the same rights as any other user. The freedom to share and modify remains intact regardless of whether money changes hands.

A major point of the essay is that the value of free software lies in user control, not in price reduction. Stallman emphasizes that a proprietary program can be cheap or even free of charge, yet still deprive users of important freedoms. By contrast, free software may be sold at a significant price, but it still protects the user's independence. This distinction is central to the essay's argument: the moral and practical question is not "How much does it cost?" but "What permissions does it grant?"

Stallman also explains why selling free software is not only permissible but often useful. Companies and individuals may make a living by distributing copies, providing support, or making software easier to obtain and use. Such commerce can help free software spread, because people who value convenience or expert assistance are willing to pay for it. He presents this as a healthy model in which economic activity supports freedom rather than undermining it.

At the same time, the essay warns against distribution methods that create artificial dependence. If a seller tries to impose restrictions on copying or redistribution, the software ceases to be free. Stallman stresses that the legitimate sale of free software depends on preserving the recipient's rights. Once a user has the program, they must be free to pass it along to others, with or without payment, under the same terms.

Another theme is the importance of language. Stallman notes that the English word "free" is ambiguous, and opponents of free software often exploit that ambiguity to spread confusion. The essay serves as a corrective, making clear that the movement's goal is not zero cost but user liberty. This distinction helps explain why free software can coexist with markets and why commercial activity does not automatically conflict with ethical software distribution.

Overall, "Selling Free Software" is a concise defense of the idea that freedom and commerce are compatible. Stallman argues that users should not be tricked into equating low price with real independence. Free software may be sold, bought, copied, and supported in many ways, but its defining feature is that it leaves control in the hands of the user.