A2 · Someone forks it and distributes a closed-source competitor
Commercial competition · Someone else does this
- MITPermissiveAllowedAllowed
- BSD-3PermissiveAllowedAllowed
- Apache-2.0PermissiveAllowedAllowed — Must mark modified files
- MPL-2.0Weak copyleftWith conditionsWith conditions — Modified MPL files stay open
- LGPL-3.0Weak copyleftWith conditionsWith conditions — Changes to the library stay open
- GPL-3.0Strong copyleftBlocked by licenseBlocked by license
- AGPL-3.0Network copyleftBlocked by licenseBlocked by license
- MulanPSL-2.0PermissiveAllowedAllowed
- SSPL-1.0Source-availableBlocked by licenseBlocked by license
- BSL-1.1Source-availableBlocked by licenseBlocked by license — Derivatives stay under BSL
- ELv2Source-availableWith conditionsWith conditions — Limitations must be kept
- BSD-2PermissiveAllowedAllowed
- ISCPermissiveAllowedAllowed
- UnlicensePermissiveAllowedAllowed
- ZlibPermissiveAllowedAllowed
- Boost-1.0PermissiveAllowedAllowed
- MIT-0PermissiveAllowedAllowed
- PostgreSQLPermissiveAllowedAllowed
- Unicode-3.0PermissiveAllowedAllowed
- Apache-2.0+LLVMPermissiveAllowedAllowed
- GPL-2.0Strong copyleftBlocked by licenseBlocked by license
- GPL-2.0+CPEWeak copyleftBlocked by licenseBlocked by license
- LGPL-2.1Weak copyleftWith conditionsWith conditions
- EPL-2.0Weak copyleftWith conditionsWith conditions
- EPL-1.0Weak copyleftWith conditionsWith conditions
- CDDL-1.0Weak copyleftWith conditionsWith conditions
- APSL-2.0Weak copyleftWith conditionsWith conditions
- Artistic-2.0Weak copyleftWith conditionsWith conditions
- Perl-5Weak copyleftWith conditionsWith conditions
- LPPL-1.3cWeak copyleftWith conditionsWith conditions
- FSL-1.1Source-availableBlocked by licenseBlocked by license
- RSALv2Source-availableWith conditionsWith conditions
- Confluent CLSource-availableWith conditionsWith conditions
- UPL-1.0PermissiveAllowedAllowed