# Can I use LGPL 3.0 commercially?

**Short answer:** Commercial use: Yes. Commercial use, modified and redistributed: Yes.

GNU Lesser General Public License v3.0 (LGPL-3.0-only): Use the library in any program, including proprietary ones; changes to the library itself, when conveyed, stay under the LGPL with source, and users must be able to relink a modified version.

## Commercial use — Yes

License: [GNU Lesser General Public License v3.0](https://www.gnu.org/licenses/lgpl-3.0.html) (`LGPL-3.0-only`, curated)

- Every use you described is granted by LGPL 3.0, and nothing you described is prohibited.

Duties: attribution, license_notice, share_alike, source_disclosure
## Commercial use, modified and redistributed — Yes

License: [GNU Lesser General Public License v3.0](https://www.gnu.org/licenses/lgpl-3.0.html) (`LGPL-3.0-only`, curated)

- Every use you described is granted by LGPL 3.0, and nothing you described is prohibited.

Duties: attribution, license_notice, share_alike, source_disclosure

## Context
- The copyleft duties apply to the library and modified versions of it, not to an application that only links to it.

## Sources
- [GNU Lesser General Public License v3.0: official text](https://www.gnu.org/licenses/lgpl-3.0.html)
- [LGPL-3.0-only on the SPDX License List](https://spdx.org/licenses/LGPL-3.0-only.html)

## Check it yourself (free, no key)
```json
{
  "tool": "check_license",
  "arguments": {
    "license": "LGPL-3.0-only",
    "intended_use": {
      "commercial_use": true
    }
  }
}
```
REST: POST https://www.rightshold.com/v1/licenses/check

_Computed from Rightshold's license profiles; not legal advice. Updated 2026-10-19. JSON: https://www.rightshold.com/answers/can-i-use-lgpl-3-0-commercially.json_