Royalty-Free vs Public Domain vs CC0: The Actual Difference

These four terms — royalty-free, public domain, CC0, and CC-BY — get used as if they're interchangeable. They're not. The difference decides whether you can sell a beat, whether you owe anyone credit, and whether there's a restriction hiding in the fine print. Here's the plain-English version, then a side-by-side so you can stop guessing.

The 20-second answer

• Public domain — no copyright exists. Do anything, no credit, no fee.
• CC0 — creator waived all rights. Functionally identical to public domain.
• CC-BY — free for any use, including commercial, if you credit the creator.
• Royalty-free — no ongoing royalties, but read the license: terms (and sometimes a price) vary.

Royalty-free

“Royalty-free” describes a payment model, not a freedom. It means you don't owe a royalty — an ongoing cut — every time your work gets streamed or sold. But it does not mean “free of charge” (you may pay once to access it) and it does not mean “free of restrictions.” A royalty-free license can still forbid reselling the raw sample, limit certain uses, or require attribution. The only way to know is to read that specific provider's terms.

Public domain

Public domain means there is no copyright at all — it expired, or the work was never eligible. In the US, sound recordings published before 1926 are in the public domain. There are no terms, no fees, no attribution, and no one to ask. It is the most permissive status a piece of audio can have: you can sample it, chop it, sell it, and build a commercial release on it with nothing owed to anyone.

CC0 (Creative Commons Zero)

CC0 is a creator deliberately giving a work away — waiving every right the law lets them waive, pushing it as close to public domain as possible. For a producer, there is no practical difference between CC0 and public domain: no fee, no attribution, no commercial restriction. The only difference is how it became free — a copyright expiring versus a creator choosing to release it.

CC-BY (Creative Commons Attribution)

CC-BY is the “just credit me” license. You can do everything — sell beats, release to streaming, use it commercially — as long as you credit the original creator and note if you modified the sample. The credit doesn't have to be prominent; it just has to be present (a track description or liner notes is fine). It's one of the safest licenses for producers because the only obligation is a shout-out.

Side by side

The two misconceptions that get producers in trouble

• “Free” means “royalty-free.” It doesn't. Price and rights are unrelated. A free download can be all-rights-reserved; a royalty-free pack can cost money.
• “Royalty-free” means “no restrictions.” It doesn't. It only addresses ongoing royalties. The license can still limit how you use it. Public domain and CC0 are the statuses with genuinely no strings.

Where Selekt fits

Selekt's catalog is built from the three genuinely safe categories — public domain, CC0, and CC-BY — sourced from named institutional contributors and verified at ingest. Every download includes a license certificate that states exactly which of these applies and any attribution required, so you never have to guess which bucket a sample falls into. Browse the cleared catalog, or read more on public domain music and royalty-free samples for commercial use.

Key takeaways

• Public domain and CC0 are the most permissive — no fee, no credit, no restrictions
• CC-BY is fully commercial-safe as long as you credit the creator
• “Royalty-free” only means no ongoing royalties — always read the actual terms
• “Free” describes price, not rights — they're unrelated
• A per-download certificate removes the guesswork by stating the exact license