Is AGPL 3.0 compatible with GPL 3.0?
AGPL 3.0-licensed code is conditionally compatible with a GPL 3.0 project. Here is what that means for your obligations, conflicts, and distribution.
The license of the code you want to use.
The license you are applying to your project.
The short answer
This combination depends heavily on specific clauses, exceptions, or how the code is used.
Key obligations
Consult legal counsel. This often requires isolating the code in separate modules.
Potential conflicts
Compatibility depends on specific clauses, use cases, or "or later" exceptions.
Distribution notes
May require distributing different parts under separate licenses.
Deep-dive resources
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What this means in practice
GNU AGPL v3.0 is a network copyleft license and GNU GPL v3.0 is a strong copyleft license. Whether you can combine them depends on the details: how the code is linked, whether you modify it, and how you distribute it. Treat the obligations below as a starting point and get legal review before a commercial release.
Compliance checklist for AGPL 3.0 → GPL 3.0
- Keep AGPL 3.0 code in clearly separated files or modules.
- Map which obligations apply to your distribution model (binary, SaaS, or internal).
- Document the boundary between AGPL 3.0 and GPL 3.0 code.
- Obtain legal review before a commercial or public release.
About these licenses
GNU AGPL v3.0
LibraryNetwork copyleft. Closes the "SaaS loophole" — offering the software over a network triggers the obligation to share source.
- Type
- Network copyleft
- Patent grant
- Express
- Source sharing
- Combined work + network use
GNU GPL v3.0
ProjectStrong copyleft with patent and anti-tivoization protections. Designed to be compatible with Apache 2.0.
- Type
- Strong copyleft
- Patent grant
- Express
- Source sharing
- Entire combined work
AGPL 3.0 and GPL 3.0: frequently asked questions
Common questions about combining GNU AGPL v3.0 and GNU GPL v3.0.
Is AGPL 3.0 compatible with GPL 3.0?
This combination depends heavily on specific clauses, exceptions, or how the code is used.
Can I use AGPL 3.0 code in a GPL 3.0 SaaS or cloud application?
AGPL 3.0 is a network-copyleft license that closes the "SaaS loophole" — serving the software over a network triggers copyleft, so you cannot re-license it under GPL 3.0.
What are my obligations when combining AGPL 3.0 and GPL 3.0?
Consult legal counsel. This often requires isolating the code in separate modules. May require distributing different parts under separate licenses.