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Catalog

Filter by category, copyleft, and rule tags. Facets combine with AND across groups and OR within a group.

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All Rights Reserved
ARR · all-rights-reserved
Prop Not applicable
The default when no licence is granted. Copyright holder retains all rights. Nothing may be done without explicit permission.
1 permit 1 condition 5 limits
Apache License 2.0
Apache 2.0 · Apache-2.0
OS None (permissive)
A permissive license with an explicit patent grant. Common choice for large projects and corporate-backed open source.
5 permits 2 conditions 3 limits OSI FSF SPDX
BSD 3-Clause License
BSD · BSD-3-Clause
OS None (permissive)
A short permissive license that additionally forbids using the author's name to endorse derived works.
4 permits 1 condition 2 limits OSI FSF SPDX
Business Source License 1.1
BUSL · BUSL-1.1
Fair Not applicable
Source-available today, open-source tomorrow. Restricted use now with automatic conversion to an OSS license after a defined delay.
2 permits 3 conditions 5 limits SPDX
Creative Commons Attribution 4.0
CC BY 4.0 · CC-BY-4.0
CC None (permissive)
Attribution required; otherwise any use allowed, including commercial use and derivative works.
4 permits 1 condition 4 limits FSF SPDX
Creative Commons Attribution-ShareAlike 4.0
CC BY-SA 4.0 · CC-BY-SA-4.0
CC Strong copyleft
Attribution plus share-alike. Derivatives must be distributed under the same or a compatible licence.
4 permits 2 conditions 4 limits FSF SPDX
Creative Commons Zero 1.0 Universal
CC0 · CC0-1.0
CC Not applicable
Public-domain dedication. The author waives all copyright and related rights to the fullest extent allowed.
4 permits 0 conditions 4 limits FSF SPDX
Elastic License 2.0
ELv2 · Elastic-2.0
Fair Not applicable
Source-available with three simple limitations, the biggest being no-hosting-as-a-service and no trademark use.
3 permits 1 condition 6 limits SPDX
End-User License Agreement
EULA · generic-eula
Prop Not applicable
A starting point for a closed-source end-user licence. Have a lawyer review before you ship.
1 permit 1 condition 5 limits
GNU General Public License v3.0
GPLv3 · GPL-3.0
OS Strong copyleft
Strong copyleft. Distributed derivative works must be released under GPL-3.0.
5 permits 4 conditions 2 limits OSI FSF SPDX
MIT License
MIT · MIT
OS None (permissive)
A short, permissive license. The de-facto default for many open-source ecosystems.
4 permits 1 condition 2 limits OSI FSF SPDX
Mozilla Public License 2.0
MPL 2.0 · MPL-2.0
OS Weak copyleft
File-level weak copyleft with a patent grant. A middle ground between permissive and strong-copyleft licenses.
5 permits 3 conditions 3 limits OSI FSF SPDX
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GNU Affero General Public License v3.0
AGPLv3 · AGPL-3.0
OS Network copyleft
Network copyleft. Anyone who modifies and offers the software over a network must make the source available to users.
5 permits 5 conditions 2 limits OSI FSF SPDX
GNU Lesser General Public License v3.0
LGPLv3 · LGPL-3.0
OS Weak copyleft
Weak copyleft. Modifications to the library stay under LGPL; linking from other software is allowed.
5 permits 4 conditions 2 limits OSI FSF SPDX
ISC License
ISC · ISC
OS None (permissive)
Functionally equivalent to a simplified MIT / BSD. Very short.
4 permits 1 condition 2 limits OSI FSF SPDX
Server Side Public License v1.0
SSPL · SSPL-1.0
Fair Network copyleft
Strong copyleft that extends to the entire stack required to offer the software as a managed service.
5 permits 5 conditions 4 limits SPDX