KnowraGNU General Public LicenseLinked fromLinked fromThe 13 pages that link to GNU General Public License, each with the reason it gives.All 13Broader topic 6Related 6Compared with 1Open-source softwareBroader topic: The GPL established a prominent way to keep modified software shareable.CopyleftBroader topic: The GPL is the best-known strong copyleft license for software.Free softwareBroader topic: Its copyleft terms are a prominent way to protect users’ freedoms.Free software movementBroader topic: The GPL is the movement’s best-known legal instrument for protecting user freedoms.Free-culture movementBroader topic: It demonstrates how licensing can require freedom to persist through adaptations.Open sourceBroader topic: Its reciprocal terms exemplify how open-source licenses can preserve downstream freedoms.