Ensure you have the necessary compilers installed (MSVC for Windows, GCC for Linux, or Clang for macOS). Qt6 requires a C++17 compatible compiler.
Can access platform-specific offline installers (e.g., for Windows, Linux, or macOS) through the Qt Customer Portal. These include all relevant modules and add-ons for the selected platform.
: Select your operating system (Windows, macOS, or Linux). Qt6 Offline Installer
For strict offline machines, choose the option or skip the login if the installer allows an offline activation file ( .lic ). Step 3: Select Components
: This is a popular command-line tool that can download specific Qt modules as 7z archives, which you can then manually move to an offline environment. Comparison: Online vs. Offline Online Installer Offline Installer (Commercial) Availability All users (Open Source & Commercial) Commercial customers only Disk Space Small initial download Large (multi-GB) executable Seamlessly adds/removes modules Requires manual updates Connectivity Constant connection required None required after download or more details on using aqtinstall QT6 Offline Installer - Qt Forum 18 May 2023 — Ensure you have the necessary compilers installed (MSVC
However, downloading Qt6 via the standard Online Installer can be problematic if you have a slow internet connection, restrictive corporate firewalls, or need to deploy Qt across multiple air-gapped development machines. This is where the becomes indispensable.
Create a base image with Qt6 pre-installed via offline installer: These include all relevant modules and add-ons for
Check the tab. The offline installer usually auto-detects the local Qt versions.
This path is powerful but is best suited for experienced developers and system administrators who need complete control over the Qt build, such as creating a minimal custom library for an embedded device.
Advance through the wizard, log in with your open-source account, and select the Qt6 components you require.