One framework. One codebase. Any platform.

Everything you need for your entire software development life cycle. Qt is the fastest and smartest way to produce industry-leading software that users love.

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DESIGN

Create beautiful interfaces

Designing and prototyping with Qt
DEVELOP

Code using powerful tools

Coding and testing with Qt
DEPLOY

Build for all platforms 

Deploying and maintaining with Qt
THE WORLDS BEST COMPANIES USE Qt TO MAKE THE PRODUCTS YOU LOVE
Set-top-box digital TV platform
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Automotive digital cockpit
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Smart manufacturing and industrial automation
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Business intelligence & analytics software
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Smart TVs & electronics
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Digital automotive cockpit
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See how Qt is used to create user experiences – faster & better
LATEST & GREATEST

Completely online, completely free, learning extravaganza

Join 35+ live tech talks, Q&As, and more in a free online event for designers, developers, and technology managers.

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Ultimate performance. Tiny footprint.

Create smartphone-like user experiences on microcontrollers with Qt for MCUs.

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All the Qt extensions you've ever dreamed of

The all-new Qt marketplace offers both free and paid extensions to expand the possibilities of your Qt development projects.

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Palm Springs, CA, USA May 12-14, 2020

Qt World Summit 2020

Qt World Summit returns with three days in the United States! Pencil yourself and your team in for May 12 - 14 and subscribe to the #QtWS20 newsletter for news on the agenda, training, and special surprises.

Check the event page
BUILT WITH Qt

Mercedes-Benz A-Class 2019 infotainment

Check out this automotive success story and others like it
START BUILDING

Light, yet powerful. So Qt.

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WHY Qt

10 reasons why you’ll enjoy Qt.

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