Terms of Service

Last updated: April 2026

Acceptance

By using mapshaper.org or related services (collectively, “the service”), you agree to these terms. If you do not agree, please do not use the service.

About mapshaper

Mapshaper is free, open-source software for editing geographic data, hosted at mapshaper.org and maintained by Matthew Bloch. The source code is licensed under the Mozilla Public License 2.0.

Use of the software

The software is provided under the terms of the MPL 2.0. You may use, modify, and redistribute the source code in accordance with that license. These Terms of Service govern your use of mapshaper.org as a hosted service; the MPL 2.0 governs your rights to the source code.

Your responsibilities

You are responsible for:

• The accuracy and legality of any data you load into or process with mapshaper
• Ensuring you have the right to use any data you load (copyright, licensing, terms of source data)
• Compliance with all applicable laws in your use of the service
• Not using the service to violate the rights of others, transmit illegal content, or attempt to disrupt the service or its third-party providers

No warranty

The service is provided “as is” and “as available,” without warranty of any kind, express or implied. We make no warranty that the service will be uninterrupted, secure, error-free, or that any output will be accurate, complete, or fit for any particular purpose.

Map data, basemaps, and conversion results may contain errors. Do not rely on mapshaper output for navigation, safety-critical decisions, legal boundaries, or other applications where accuracy is essential.

Limitation of liability

To the maximum extent permitted by law, mapshaper, its maintainer, and contributors are not liable for any direct, indirect, incidental, consequential, special, or punitive damages arising from your use of (or inability to use) the service, including but not limited to loss of data, business interruption, lost profits, or any other commercial damages.

Contributions

Contributions made via Ko-fi or GitHub Sponsors are voluntary. They are not tax-deductible (mapshaper is not a registered charity). Contributions are non-refundable except in cases of fraud or technical error. Refund requests should be directed to the payment processor (Ko-fi, Stripe, or GitHub).

Third-party services

The service relies on third-party providers including:

• GitHub Pages for site hosting
• Mapbox for basemap tiles
• Google Analytics for usage analytics
• Stripe, Ko-fi, and GitHub Sponsors for payment processing

When you interact with these services through mapshaper, their terms of service and privacy policies also apply. We are not responsible for the availability, behavior, or content of third-party services.

Changes to these terms

These terms may be updated. The “Last updated” date at the top reflects the most recent change. Continued use of the service after changes constitutes acceptance of the updated terms.

Governing law

These terms are governed by the laws of the State of New York, United States, without regard to conflict-of-law principles.

Contact

Questions about these terms can be sent to the maintainer via GitHub or Ko-fi.