If you use the free open-source LGPL license, official standalone offline installer .exe or .run packages for 5.15.2 are not publicly hosted on the main download pages. However, you can still achieve an offline installation using the methods below. Method 1: Create Your Own Offline Installer (Recommended)
Select where you want to install Qt (e.g., C:\Qt\5.15.2 ). Select Components: MinGW: Required if you are using the MinGW compiler. MSVC (2017/2019): Required if you are using Visual Studio.
: 5.15.2 remains the last long-term support (LTS) version of Qt 5 available to open-source users. 2. Build from Source
If your target environment must remain offline, but you still have a machine with internet access, you can use the online installer to fetch your required components and transfer them to the offline machine.
./qt-unified-linux-x64-online --mirror https://download.qt.io/online/qtsdkrepository/linux_x64/ --cachedir ./qt_cache download qt 5.15.2 offline installer
What (Windows, Linux, or macOS) are you installing on?
This is the standard way to get 5.15.2. You must log in with a Qt Account to use it. : Get the Online Installer from the official site. Locate 5.15.2 : Launch the installer and log in. Select Custom installation .
Qt 5.15.2 offline installers are no longer provided for open-source users. Starting with Qt 5.15, the Qt Company restricted offline installers and long-term support (LTS) binaries to commercial license holders
Qt 5.15.2 was released in 2020. For open-source users, offline installers for versions after 5.15.2 require a commercial license. Qt 5.15.2 is the last version with easily accessible official offline installers for open-source use. If you use the free open-source LGPL license,
Broken segments can lead to unpredictable compilation errors during app development.
Finding the official Qt 5.15.2 offline installer can be challenging due to changes in The Qt Company's licensing and distribution models. This guide provides direct, reliable methods to safely acquire this specific LTS (Long-Term Support) version for your development needs. Why Use the Qt 5.15.2 Offline Installer?
Help you navigate the Qt Commercial Licensing portal for older offline installers. Provide a list of .
If you possess a commercial license, follow these steps to download the offline installer: Select Components: MinGW: Required if you are using
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Show you how to if the installer didn't include it. Let me know which of these would be most helpful to you! Share public link
Starting with , the Qt Company changed its distribution model, making official offline installers available exclusively for commercial license holders
If you have a paid license, you can access the full offline installer directly through the Qt Account Portal.
./configure -xplatform linux-arm-gnueabi-g++ -prefix /usr/local/qt5.15.2
for version 5.15.2. The last version to provide a public open-source offline installer was Qt 5.14.2. Stack Overflow Alternative Installation Methods