License

Plainwright is open source under the Apache License 2.0 (SPDX: Apache-2.0). You can use it, self-host it, change it and build commercial products on it, for free. The license also grants you a patent license from every contributor for their contributions. It comes with no warranty.

The full text is in LICENSE at the root of the repository, and the project’s attribution notices are in NOTICE:

NOTICE

Plainwright
Copyright 2026 Plainwright contributors

To mark a file of your own that is derived from Plainwright, the license’s appendix suggests this notice:

Copyright 2026 Plainwright contributors

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

What it means in practice

You can	You must	You can’t
Use Plainwright for any purpose, including commercially	Give recipients a copy of the license	Use the Plainwright name or logo to imply endorsement (trademarks are not licensed)
Self-host it for your company or your customers	Keep the copyright, patent and attribution notices, and the NOTICE file, in what you redistribute	Hold the contributors liable for damages, or expect a warranty
Modify it and keep your changes private, or publish them	Mark the files you changed	Keep the patent license if you sue someone claiming Plainwright infringes a patent
Sell services or products built on it

This is a summary, not legal advice. The license text is what applies.

Third-party components

Plainwright includes or runs other open-source software under its own licenses:

Component	How it is used	License
axe-core 4.12.1	Bundled as backend/app/services/quality/axe.min.js for accessibility checks, with its copyright header kept (listed in NOTICE)	Mozilla Public License 2.0
Playwright MCP and Playwright	Run as separate containers to drive the browsers	Apache License 2.0
Python packages (FastAPI, SQLAlchemy, RQ, …)	Installed from backend/requirements.txt	Their own licenses
JavaScript packages (React, Vite, Tailwind, …)	Installed from frontend/package.json	Their own licenses
Inter and JetBrains Mono (this documentation)	Self-hosted fonts	SIL Open Font License 1.1

Note

When you redistribute Plainwright, for example as a container image, keep the notices of these components too. Check each dependency’s license if your policy requires a full inventory.

Contributions

Contributions are accepted under the same Apache License 2.0 (section 5 of the license), and every commit is signed off under the Developer Certificate of Origin with git commit -s. See Contributing.