Z-Thru License

© 2026 Sirasit Thitirattanakorn. All rights reserved.

Z-Thru is made by Sirasit Thitirattanakorn ("the creator") and published under the Sirux name. Z-Thru is proprietary software. It is free of charge but it is not open source.

1. Permission to use. The creator grants you permission to install and use the Z-Thru browser extension, as distributed by the creator through the Chrome Web Store or an official release, for personal and commercial work at no cost.

2. Restrictions. Unless the law allows it despite this restriction, you may not copy, modify, redistribute, sell, sublicense, or publish the software or its source code, reverse engineer it, or remove this notice or the third-party notices. Access to this repository does not grant any of these rights.

3. Third-party components. Z-Thru includes components under their own licenses, including axe-core (Mozilla Public License 2.0), React, and React DOM (MIT). Their terms are reproduced in THIRD_PARTY_NOTICES.txt in every release, and nothing in this license limits your rights under them.

4. Not a compliance tool. Z-Thru is an automated accessibility testing tool. Automated testing cannot detect every accessibility issue. Its results are informational only: they are not legal advice, and they do not establish that any page complies with the WCAG, the ADA, or any other law, regulation, or standard. A check that finds no issues does not certify that a page is accessible or legally compliant. Review by people is still necessary. You are responsible for your own content and its accessibility.

5. No warranty. TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AND NON-INFRINGEMENT.

6. Limitation of liability. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE CREATOR BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION WITH THE SOFTWARE OR ITS USE, INCLUDING ANY RELIANCE ON ITS RESULTS.

7. Termination. These permissions end automatically if you break these terms. Uninstalling the extension ends your use.

8. Governing law. This license is governed by the laws of the State of California, United States.

Questions: support@sirux.io