# Can I use MPL 2.0 commercially?

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

Mozilla Public License 2.0 (MPL-2.0): Use, modify and distribute, including in larger proprietary works; files covered by the MPL that you change and distribute must stay under the MPL with their source available.

## Commercial use — Yes

License: [Mozilla Public License 2.0](https://www.mozilla.org/en-US/MPL/2.0/) (`MPL-2.0`, curated)

- Every use you described is granted by MPL 2.0, and nothing you described is prohibited.

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

License: [Mozilla Public License 2.0](https://www.mozilla.org/en-US/MPL/2.0/) (`MPL-2.0`, curated)

- Every use you described is granted by MPL 2.0, and nothing you described is prohibited.

Duties: license_notice, share_alike, source_disclosure

## Context
- Copyleft applies file by file.
- Executable forms may be distributed under different terms if the source of covered files stays available under the MPL (section 3.2); general sublicensing is not documented.

## Sources
- [Mozilla Public License 2.0: official text](https://www.mozilla.org/en-US/MPL/2.0/)
- [MPL-2.0 on the SPDX License List](https://spdx.org/licenses/MPL-2.0.html)

## Check it yourself (free, no key)
```json
{
  "tool": "check_license",
  "arguments": {
    "license": "MPL-2.0",
    "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-mpl-2-0-commercially.json_