GNU Affero General Public License v3.0
StrongestUsed by: Nextcloud, Mastodon
Description
A strong copyleft license that extends GPL-3.0 by requiring network-deployed software to provide source code access.
Key Features
- Network copyleft
- Anti-Tivoization
- Patent retaliation
- Remote network use provisions
History & Context
Released in 2007 as extension to GPL-3.0. Addresses SaaS distribution model.
Compatibility
| License | Compatibility |
|---|---|
| With gpl | AGPL-3.0 is stronger than GPL-3.0 |
| With mit | AGPL-3.0 can incorporate MIT-licensed code |
| With bsd | AGPL-3.0 can incorporate BSD-licensed code |
| With proprietary | No |
License Details
Copyleft Strength
Strongest
Legal Enforceability
Limited court precedent
Notable Projects
NextcloudMastodon
License Provisions
AttributionRequired
Source codeComplete corresponding source including network services
Modification clauseMust share under same license
WarrantyDisclaimer included