CC0 1.0 Universal
SPDX ID: CC0-1.0 · Version: 1.0 · Version policy: fixed
A public-domain dedication with a fallback license; it does not eliminate every right.
Editorial summary · §§2–4General information, not legal advice. The applicable official text controls. A qualified legal professional should confirm license selection, compatibility and commercial decisions for a specific product.
Scope
Depends on context
Covers the affirmer’s copyright and related rights, to the extent legally possible.
§§1–2Use, modify and distribute
Allowed under conditions
Includes commercial reuse under the waiver or fallback; other rights may still restrict use.
§§2–4Waiver and fallback
Depends on context
If the waiver fails, a public license applies to affected rights; remaining protections are addressed in §3.
§3Copyright and source notices
Not expressly stated
No attribution or source-sharing requirement is stated for covered rights. Third-party rights still need checking.
§§2–4(c)NOTICE file
Not applicable
CC0 does not define an Apache-style NOTICE mechanism.
§§1–4Patents and trademarks
Depends on context
Patent and trademark rights are not waived or licensed.
§4(a)Third-party rights
Depends on context
The affirmer does not clear other people’s rights or obtain necessary permissions.
§4(c)Warranty
Depends on context
The work is offered without warranties to the greatest extent permitted by law.
§4(b)Sources and review details
Source checked: · Editorial revision: 2026-09-06.1
Publisher text reviewed.
Sources and review details
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This directory does not change the license of cc0.app, its code or its dependencies. SPDX identifies licenses; listing alone does not establish OSI approval.