Prompttail

Terms of Service

Last updated: February 2026

1. Acceptance of Terms

By accessing or using Prompttail (prompttail.com), you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use the site. Your continued use of the service constitutes acceptance of any updates or changes to these terms.

2. Description of Service

Prompttail is a free prompt engineering toolkit that provides browser-based tools to help you write better prompts for AI language models. Our current tools include:

  • A prompt linter that analyzes prompts for clarity, specificity, and common issues
  • A template library of curated prompt templates across multiple categories

All tools run entirely in your browser. Prompttail does not require an account, login, or payment. We do not send your prompts to any server or third-party service for processing.

3. No Account or Payment Required

Prompttail is a free service. There are no user accounts, no login requirements, and no payment processing. You may use all available tools without providing any personal information.

4. Intellectual Property

The content, design, code, linter rules, template text, and all other materials on Prompttail are the intellectual property of Prompttail and are protected by applicable intellectual property laws. You may not copy, reproduce, distribute, or create derivative works from the site's content without prior written permission, except as described below.

Your prompts are yours. Any prompts you write, paste, or generate by filling in template placeholders belong to you. You are free to use those prompts for any purpose, personal or commercial, without restriction.

5. User Responsibilities

When using Prompttail, you agree to the following:

  • You are solely responsible for the content of the prompts you create or modify using our tools.
  • You are responsible for how you use any prompts generated, improved, or derived from Prompttail's tools and templates.
  • You will not use the service for any unlawful purpose or in violation of any applicable laws or regulations.
  • You will not attempt to interfere with, disrupt, or compromise the integrity or performance of the service.

6. Disclaimers

Prompttail is provided on an "as is" and "as available" basis without warranties of any kind, whether express, implied, or statutory. We specifically disclaim all implied warranties of merchantability, fitness for a particular purpose, and non-infringement.

Prompttail does not guarantee that:

  • The linter feedback will improve the quality of AI-generated outputs in all cases.
  • Templates will produce specific or desired results when used with any AI model.
  • The service will be uninterrupted, error-free, or available at all times.
  • Any analysis or suggestions provided by the tools are complete, accurate, or suitable for your use case.

7. Limitation of Liability

To the fullest extent permitted by applicable law, Prompttail and its operators shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of profits, data, use, or goodwill arising out of or related to your use of or inability to use the service. In no event shall our total liability exceed one hundred U.S. dollars ($100). This limitation applies regardless of the legal theory on which the claim is based.

8. Third-Party Services

Prompttail may use third-party services such as Google Analytics for usage analytics and Google AdSense for advertising. These services may collect information as described in their own privacy policies. Prompttail is not responsible for the practices of any third-party services. Please refer to our Privacy Policy for more details on data collection.

9. Changes to the Service and Terms

We reserve the right to modify, suspend, or discontinue any part of Prompttail at any time without prior notice. We may also update these Terms of Service from time to time. When we make changes, we will update the "Last updated" date at the top of this page. Your continued use of the service after any changes constitutes acceptance of the revised terms.

10. Governing Law

These terms shall be governed by and construed in accordance with the laws of the United States. Any disputes arising from or related to these terms or your use of the service shall be resolved in accordance with applicable law.

11. Contact

If you have any questions about these Terms of Service, please contact us.