Downloads and Evaluations

Trolltech offers a wide variety of downloads. Please locate the product(s) and circumstances of use that best match your interest below.

I want to evaluate Qt

Qt is a comprehensive C++ application development framework, which includes a class library and tools for cross-platform development and internationalization. Trolltech offers a free 30-day evaluation of Qt - if you are a commercial software developer, you may also qualify for free support during your evaluation.

Go to the Qt Evaluation page

I want to download the preview of the next-generation embedded Linux port of Qt

A preview of Trolltech's next-generation embedded Linux port of Qt, based on Qt 4.0.1, is now available.

Go to Embedded Preview Download page

I am interested in Qtopia

Qtopia is a comprehensive application platform and user interface for Linux-based consumer electronics. Find source and SDKs at:

Qtopia Downloads

I want to evaluate Teambuilder

Teambuilder is a distributed build system for Linux/Unix that takes advantage of the entire work groups' machines to significantly reduce compile time.

Go to Teambuilder Evaluation page

I want to publish Qt-based Open Source software

If you would like to write and publish freely redistributable source code, you can use the Qt Open Source Edition, now available across all supported platforms. If you do not want to open source your work, you should use the supported evaluation version instead.

Code written using the Open Source Editions must be available to all of the program's users. Users must also be free to modify the source and redistribute it internally and externally free of charge (according to the GNU GPL license).

Go to the Open Source Download page

I want to teach programming using Qt

Trolltech offers teachers and lecturers a free Qt site license (for Windows) for the purpose of teaching programming or Computer Science. Please use the link below if you want to sign up for this program.

Sign up for Qt Educational Program

I am a Qt user and want the latest snapshots

Snapshots are the very latest, often unstable versions of Qt software currently under development. We recommend that you do not use snapshots for product development, especially if you are under budget or schedule constraints.

Qt Snapshots

Snapshots via rsync

I am interested in tools and freebies

The freebies page contains Trolltech created tools that you may find useful.

Go to the Tools and Freebies page

You can start the download process by clicking on the download links on the downloads pages. If you have any problems with the download or installation, please read the Installation FAQ. If you already know you want to buy a commercial license, contact [email protected].