Terms of Use

_Last updated: 2026-05-10_

These terms govern your use of tool127 (the "Service"). By using the Service, you agree to these terms. If you do not agree, please stop using it.

What the Service is

tool127 is a free collection of developer utilities — JSON formatting, JWT decoding, UUID generation, color conversion, and similar tools. All processing happens in your browser. We do not host your data and we do not run a backend that processes your inputs. The Service is supported by advertising.

Acceptable use

You may use the Service for any lawful purpose, including commercial work, on the condition that you do not:

• Attempt to disrupt, overload, or reverse-engineer the hosting infrastructure.
• Use the Service to process data you are not authorized to access.
• Use the Service in a way that violates applicable law or the rights of others.

No warranty

The Service is provided "as is", without warranty of any kind, express or implied. While we make a reasonable effort to keep the tools accurate and reliable, we do not guarantee that they are free of bugs, that the output is suitable for any particular purpose, or that the Service will be available without interruption.

In particular:

• The JWT analyzer decodes tokens but does not verify signatures. Do not use it as a replacement for proper server-side validation.
• The JSON formatter and other tools may have edge cases. Always validate critical output before using it in production.
• Generated values (UUIDs, colors, etc.) are produced by your browser — quality depends on your browser's APIs.

Limitation of liability

To the maximum extent permitted by law, the authors and contributors of tool127 are not liable for any direct, indirect, incidental, special, consequential, or exemplary damages arising out of or in connection with your use of the Service, including loss of data, profits, or goodwill.

Your data

You are solely responsible for the data you process with the Service. Because everything runs locally, the security of that data depends on the security of your browser and device. See the Privacy Policy for details on what is and is not stored.

Intellectual property

The source code of tool127 is proprietary and not available under an open-source license. The trademarks, brand assets, and original content are the property of the Service owner. You may not copy, modify, or redistribute the source code without explicit permission.

Changes to these terms

We may update these terms from time to time. The "Last updated" date at the top will reflect any change. Continued use of the Service after a change constitutes acceptance of the new terms.

Contact

For questions about these terms, please open an issue at github.com/tool127/issues.