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7-Zip Rule

7z.dll combines GNU LGPL, unRAR-restricted, BSD 3-clause and BSD 2-clause code; all other files are GNU LGPL

Catalog row in Vendor License Rules · Cited

Kind
Definition
Statement
7-Zip License for use and distribution (undated; as published on 2026-09-27): 7z.dll is licensed under the GNU LGPL as the main licence for most of the code, the GNU LGPL with the unRAR licence restriction for some code, the BSD 3-clause licence for some code and the BSD 2-clause licence for some code. All other files are under the GNU LGPL.
Applies when
Identifying which licence governs a 7-Zip file before redistribution or inclusion in an SBOM.
Applies to
7z.dll and every other file in the 7-Zip binary distributions.
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