Terms & Conditions
Last updated: March 25, 2026
Welcome to Dart Sewing Tools ("Dart," "we," "us," or "our"), operated at dartsewing.com. By accessing or using our website and tools, you agree to these Terms & Conditions. If you do not agree, please do not use the site.
1. Description of Service
Dart provides free and premium browser-based sewing calculators, pattern tools, and educational resources. All calculations run locally in your browser — we do not process your measurements or pattern data on our servers.
2. Use of the Site
You agree to use Dart only for lawful purposes and in accordance with these Terms. You agree not to:
- Use the site in any way that violates applicable laws or regulations
- Attempt to interfere with or disrupt the site's operation
- Scrape, crawl, or use automated tools to extract content in bulk without permission
- Misrepresent your identity or affiliation when using community features
3. Accounts & Authentication
Some features require an account. You are responsible for maintaining the security of your account credentials. We use a third-party authentication provider and do not store your password directly.
4. Premium Subscriptions
Dart offers optional premium tiers that unlock additional tools. By purchasing a subscription, you agree to the pricing displayed at the time of purchase. Subscriptions are non-refundable except where required by law. We reserve the right to change pricing for future billing periods with reasonable notice.
5. Intellectual Property
All content on Dart — including text, graphics, tool designs, code, and branding — is owned by Dart Sewing Tools or its licensors and is protected by copyright and other intellectual property laws. You may not reproduce, distribute, or create derivative works from our content without written permission.
Content you create using our tools (e.g., PDF modifications, calculation results) belongs to you.
6. Disclaimer of Warranties
Dart is provided "as is" and "as available" without warranties of any kind, whether express or implied. We do not guarantee that:
- Calculations will be error-free or suitable for every pattern or body type
- The site will be uninterrupted, secure, or free of bugs
- Results will produce a perfect fit — sewing involves many variables beyond what any calculator can account for
Always make a muslin or toile before cutting into your good fabric. Our tools are aids, not substitutes for fitting knowledge and judgment.
7. Limitation of Liability
To the fullest extent permitted by law, Dart Sewing Tools and its operators shall not be liable for any indirect, incidental, special, consequential, or punitive damages — including but not limited to loss of fabric, wasted materials, or unsatisfactory garment results — arising from your use of the site or reliance on its calculations.
8. Affiliate Links & Recommendations
Some pages contain affiliate links to products and supplies. When you purchase through these links, we may earn a small commission at no additional cost to you. Affiliate relationships do not influence our recommendations — we only recommend products we genuinely believe are useful.
9. Community Content
If you post content in our community forums, you retain ownership of your content but grant Dart a non-exclusive, royalty-free license to display it on the site. You are responsible for ensuring your posts do not infringe on others' rights or contain harmful content. We reserve the right to remove content that violates these Terms.
10. Privacy & Data
Your privacy matters to us. Most of our tools run entirely in your browser — your measurements and pattern data are never sent to our servers. Account data and email subscriptions are handled by third-party providers (authentication and email services). We do not sell your personal information.
11. Changes to These Terms
We may update these Terms from time to time. Changes will be posted on this page with an updated "Last updated" date. Continued use of the site after changes constitutes acceptance of the revised Terms.
12. Contact
If you have questions about these Terms, please reach out through our community forum or the email address listed in our account communications.