Terms of Use

Last updated: 2026-07-31

Agreement

By using ProtractorTool (https://protractortool.com), including the free online protractor tool and supporting pages, you agree to these Terms. If you do not agree, do not use the site.

The service

ProtractorTool provides a browser-based protractor tool for measuring angles on a canvas and on user-supplied images or screenshots. Features may change over time. The service is provided free of charge unless we clearly state otherwise for optional future features.

Acceptable use

You agree not to:

• Abuse, overload, or attempt to break the site or its infrastructure
• Use the tool for unlawful purposes
• Upload or paste content you do not have the right to process on your device
• Misrepresent measurement results as certified professional metrology when they are not

No professional warranty

Readings from this online protractor depend on your alignment, image quality, and device. Results are for education, design review, DIY estimation, and similar informal uses. They are not a substitute for licensed surveying, structural engineering, medical goniometry, or calibrated laboratory instruments. See also the Disclaimer.

Intellectual property

Site design, branding, and original text are owned by the ProtractorTool operator or its licensors. You retain rights to images you process locally. You may export PNGs of your own sessions for personal or internal work, subject to third-party rights in the underlying photo.

Third-party names

References to browsers, platforms, or competing tools are for description only. ProtractorTool is not affiliated with Google, Apple, Microsoft, or manufacturers of physical protractors unless explicitly stated.

Availability

We aim for high availability of this static site but do not guarantee uninterrupted access. Features may be modified or discontinued.

Limitation of liability

To the maximum extent permitted by law, ProtractorTool and its operators are not liable for indirect, incidental, or consequential damages arising from use of the protractor tool or reliance on displayed angles or scaled lengths.

Privacy

Processing of data is described in the Privacy Policy.

Changes

We may update these Terms by posting a new version on this page with a revised date.

Contact

Questions about these Terms: use site Feedback or the contact path on About.