Terms of Service

Last updated: September 16, 2025

Acceptance of Terms

Welcome to CSS Unit Tools. By accessing and using our website and conversion tools, you accept and agree to be bound by the terms and provisions of this agreement. If you do not agree to these terms, please do not use our service.

Simple Version: These terms outline what you can and can't do with CSS Unit Tools, and what you can expect from us. By using our tools, you're agreeing to these guidelines.

Description of Service

CSS Unit Tools provides professional, web-based CSS unit conversion tools for developers, designers, and web professionals worldwide. Our comprehensive service includes:

🔧 Conversion Tools

  • • Conversion between various CSS units (px, rem, em, %, vw, vh, pt, cm, mm, in, pc)
  • • Real-time calculation with mathematical precision
  • • Customizable conversion parameters

📚 Educational Content

  • • Comprehensive guides about CSS units
  • • Best practices for responsive design
  • • Tutorials and usage examples

🌍 Multi-language Support

  • • Available in English, German, Japanese, and Chinese
  • • Culturally appropriate content for each region
  • • Localized number formatting and conventions

📱 Responsive Design

  • • Optimized for desktop, tablet, and mobile devices
  • • Accessible design following web standards
  • • Fast, client-side processing

Use License

Permission is granted to use CSS Unit Tools for personal and commercial web development projects, subject to the following conditions:

✓ What You CAN Do:

  • Use our tools for any legitimate web development or design purpose
  • Use conversion results in personal and commercial projects
  • Access our tools from any device or browser
  • Share links to our tools with colleagues and students
  • Use our tools for educational and learning purposes

✗ What You CANNOT Do:

  • Attempt to reverse engineer, copy, or reproduce our algorithms or code
  • Use our service for any illegal or unauthorized purpose
  • Overload our servers with automated requests or bot traffic
  • Attempt to interfere with the security or functionality of our service
  • Remove or modify any copyright notices or attribution

This license shall automatically terminate if you violate any of these restrictions and may be terminated by us at any time. Upon termination, you must cease all use of our services.

Accuracy and Reliability

Important Disclaimer: While we strive to provide accurate CSS unit conversions based on W3C standards, CSS Unit Tools is provided "as is" without warranties of any kind.

Our conversion algorithms are based on official CSS specifications and industry standards, but we make no warranties about the completeness, reliability, and accuracy of this information in all contexts. Factors that may affect accuracy include:

  • Browser-specific rendering differences
  • Device pixel density variations
  • Custom CSS resets or base styles
  • Operating system font rendering differences
  • User accessibility settings and preferences

User Responsibility: Users are responsible for testing and verifying conversion results in their specific use cases, browser environments, and target devices before implementing in production projects.

Limitation of Liability

In no event shall CSS Unit Tools, its operators, or its suppliers be liable for any damages (including, without limitation, damages for loss of data, profit, or business interruption) arising out of the use or inability to use our tools, even if we have been notified orally or in writing of the possibility of such damage.

This limitation applies to:

  • • Direct, indirect, incidental, or consequential damages
  • • Loss of profits, data, or business opportunities
  • • Costs of substitute services or products
  • • Service interruptions or technical malfunctions
  • • Errors in conversion calculations or results

User Conduct and Responsibilities

As a user of CSS Unit Tools, you agree to use our service responsibly and in accordance with these terms. Specifically, you agree not to:

Technical Conduct

  • • Make excessive automated requests that could impact service availability
  • • Attempt to bypass any security measures or access restrictions
  • • Probe, scan, or test the vulnerability of our systems
  • • Interfere with the proper working of the service

General Conduct

  • • Use the service for any unlawful purpose or in violation of these terms
  • • Transmit any malicious code, viruses, or harmful content
  • • Impersonate any person or entity
  • • Violate any applicable local, state, national, or international law

Intellectual Property Rights

The design, layout, user interface, and original content of CSS Unit Tools are protected by intellectual property laws. While our conversion algorithms are based on publicly available CSS specifications, our implementation, user interface design, and educational content are proprietary.

What We Own:

  • • Website design and user interface
  • • Original educational content and tutorials
  • • Code implementation and algorithms
  • • Branding, logos, and visual design elements
  • • Multi-language translations and localizations

Service Availability and Modifications

We strive to maintain high availability of our service but do not guarantee uninterrupted access. We reserve the right to:

  • Modify, suspend, or discontinue any part of the service at any time
  • Implement scheduled maintenance that may temporarily affect availability
  • Update our tools and add new features to improve functionality
  • Change the user interface or user experience based on user feedback
  • Implement security measures that may affect service access

We will make reasonable efforts to provide advance notice of significant changes or planned maintenance when possible.

Governing Law and Dispute Resolution

These terms and conditions are governed by and construed in accordance with applicable web service laws and regulations. Any disputes relating to these terms will be resolved through appropriate legal channels in the jurisdiction where our service is operated.

Dispute Resolution Process:

  1. 1. Informal Resolution: We encourage users to contact us first to resolve any concerns
  2. 2. Mediation: If informal resolution fails, we prefer mediation before litigation
  3. 3. Legal Action: Any legal proceedings will be conducted in accordance with applicable law

Termination

We may terminate or suspend your access to CSS Unit Tools immediately, without prior notice or liability, for any reason whatsoever, including breach of these Terms. Upon termination:

  • Your right to use the service will cease immediately
  • Any data stored locally in your browser will remain unaffected
  • Provisions that should survive termination will remain in effect
  • You may still be bound by any obligations that arose before termination

Changes to Terms

We reserve the right to modify these terms at any time to reflect changes in our service, legal requirements, or business practices. When we make changes:

How We Handle Updates:

  • • The "Last updated" date will be revised
  • • Significant changes will be prominently displayed
  • • We may notify users through website announcements
  • • Continued use constitutes acceptance of new terms

We encourage you to review these Terms periodically. If you disagree with any changes, you should discontinue use of our service.