Licenses

The two main categories of open source licenses often require in-depth explanation. Open source licenses can be divided into two main categories: copyleft and permissive. This division is based on the requirements and restrictions the license places on users.

Copyleft vs. permissive

Copyleft

• Allows to use, modify and share
• Copyleft license has to be maintained

Permissive

• "Anything goes"
• permits proprietary derivative works

Copyleft licenses

GPL - Gnu general public license

The most popular open source license, created by Richard Stallman to protect GNU from becoming proprietary. More here.

Sources

• https://resources.whitesourcesoftware.com/blog-whitesource/open-source-licenses-explained