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NOTE: There are many aspects of open source licensing to consider. This is just a high level guide and not intended to replace legal counsel.

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Qt for Application Development

Commercial

This is Qt loaded with features and functionality for all your application development needs. The Qt Company provides you with world-class support and a close strategic relationship giving you direct access to Qt R&D, all to make sure your product and development goals are met. To break it down:

  • Qt Framework & Qt Development Tools
  • Additional professional development features, tools & functionality
  • Timely global support directly from the official Qt Support team
  • You avoid legal risk and secure your intellectual property rights
  • Close strategic relationship with The Qt Company with priority access to Qt R&D
  • Your choice of term or perpetual commercial licensing
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30 days for free

Qt for Device Creation

Commercial

This commercial license keeps your code secure where only you control and monetize on your investment. Your development, user experience and distribution is under your control. You get everything you need for device creation:

  • Qt Framework & Qt Development Tools with additional embedded features
  • Productivity tools & pre-built software stack* for immediate prototyping
  • Timely global support directly from the official Qt Support team
  • You avoid legal risk and secure your intellectual property rights
  • Close strategic relationship with The Qt Company with priority access to Qt R&D
  • Perpetual commerical licensing to protect your investment
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Open Source

Qt comprises a comprehensive cross-platform framework and development tools that together ease your application and/or device creation efforts. Qt Open Source is available under the GNU Lesser General Public License (LGPL). When developing with Qt Open Source, we stress that you are aware of the terms of the LGPL and are informed of your legal obligations. Before you start developing, please make sure your project will comply with LGPL and that your company allows usage of open source products.

  • Qt Framework & Qt Development Tools
  • Support via community maintained Qt Forums, Qt Wiki and the like
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* Embedded Linux only. Learn more

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