Open Source Compliance
License Compatibility Checker
Enter your project license and a dependency license to check compatibility. Covers static linking, dynamic linking, and network API use cases with clear pass/fail verdicts.
No data is transmitted — everything runs locallyTool
About this tool
License Compatibility Checker
The License Compatibility Checker determines compatibility between open source licenses for static linking, dynamic linking, and network API use cases with plain-English explanation.
• Check whether a GPL-2.0-only dependency is compatible with your Apache-2.0 project
• Determine if an LGPL library can be used in a proprietary product via dynamic linking
• Verify that an AGPL-3.0 npm package is compatible with your SaaS application
• Understand the copyleft implications before adding a GPL dependency
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FAQ
What does this tool tell you?
The License Compatibility Checker determines compatibility between open source licenses for static linking, dynamic linking, and network API use cases with plain-English explanation.
What affects the result most?
GPL-2.0-only is incompatible with Apache-2.0 — cannot link GPL-only and Apache-2.0 code in same binary. LGPL-2.1 and Apache-2.0: compatible if LGPL component is dynamically linked. MIT, BSD-2-Clause, BSD-3-Clause, ISC: permissive — compatible with each other and with GPL.
How should I use the result?
Treat the tool's output as a first-pass check, not a proof of correctness. A clean pass means no issues in the patterns this tool recognizes; a failure points to a specific problem you can investigate in your source. The underlying spec is the authoritative source for edge cases.
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