QTTabBar adds tabbed browsing and enhancements to Windows File Explorer
QTTabBar is a small tool that allows you to use tab multi label function in Windows Explorer. https://www.yuque.com/indiff/qttabbar
At a glance
- What is it?
- QTTabBar is a Windows tool that brings tabbed browsing, folder previews, and extra plugins to File Explorer, updated for .NET 4.8 and modern Windows including Windows 11.
- Who is it for?
- QTTabBar is a Windows tool that adds tabbed browsing, folder previews, and helper plugins to File Explorer, and it has been updated for .NET 4.8 and the changes in Windows 11. Installation runs through a setup executable that pulls in .NET 4.8 when missing, and activation differs by Windows version: a toolbar tick on Windows 10 and an auto-attach option on Windows 11.
- Can I use it commercially?
- Yes, with conditions. GPL-3.0 is a copyleft licence: if you distribute software that includes it, you must release that software's source code under the same licence. Running it internally without distributing it does not trigger that obligation.
- Is it still maintained?
- Yes. The repository last received commits 9 days ago.
- What is it written in?
- Mainly C#, according to GitHub's language statistics.
Answers come from the project's GitHub data, last synced on September 30, 2026, and from our analysis. They are not legal advice.
Editorial analysis
What QTTabBar adds to File Explorer
QTTabBar is a small tool that adds tabbed multi-label browsing to Windows Explorer, along with extra functions such as a file operation tool, a tree directory view, and a status bar. The README describes it as a domestically optimized version based on the older sf.net/qttabbar project from 2012, with some Chinese language features added for local users. By putting tabs on Explorer windows, the tool aims to raise daily work efficiency in the same way browser tabs changed web surfing. The README compares the experience to IE 7, Firefox, and Opera, where several pages share one window. It also keeps a capture window feature that the Japanese maintained official site used, so the easy-to-use function remains available in this build. The project's README frames QTTabBar as a quality of life addition for people who keep many Explorer windows open during a work session, since tabs collapse that clutter into one window.
Downloading and installing
QTTabBar is distributed from GitHub releases, a Chinese mirror on Gitee, and SourceForge. Running the installer, QTTabBar Setup.exe, installs the tool and, when needed, the .NET Framework 4.8 automatically. After installation you open a File Explorer window and then activate QTTabBar, though the activation steps differ between Windows 10 and Windows 11. A CHANGELOG.md file holds the full version history for anyone tracking changes. Building the project from scratch needs Visual Studio 2022, the WiX Toolset, and a bundled NotifyPropertyWeaver, but ordinary users only need the setup executable and a supported Windows release.
Activating on Windows 10 and Windows 11
On Windows 10, Explorer still shows a classic toolbar, so you enable the bands the normal way: right-click an empty part of the toolbar area or use View then Options, and tick QTTabBar and QT ButtonBar. That gives the full experience including QTTabBar's own tab bar. Windows 11 removed the classic Explorer toolbar, so there is no toolbar menu to enable it through. Instead you turn on an auto-attach option: right-click an empty area inside a folder, choose QTTabBar Options, and on the Window tab tick the box to enable QTTabBar on every Explorer window, then restart Explorer. On Windows 11 the tool works alongside Explorer's own native tabs rather than showing a separate tab bar. Restarting Explorer can be done by signing out and back in, or by using Task Manager to find Windows Explorer and clicking Restart, which reloads the shell with QTTabBar attached to every new window.
Features you get once enabled
After enabling QTTabBar on Windows 11 you gain a few conveniences. Double-clicking an empty area of a folder goes up one level, and hovering over files shows previews of text files and photos or media files. Error logs are written to a path under the user's APPDATA directory named QTTabBarException.log. The README also points to extra community resources, including a dark mode skin maintained by another contributor and an install guide written for Windows 11. These touches extend Explorer without replacing its built-in behavior, so users keep the familiar file manager and add tab style navigation on top.
Building from source
Developers who want to change the code can build without the installer for day to day edits. The README gives a direct msbuild command that compiles the project in Release mode. To cut a versioned release installer, a PowerShell script stamps the version into the assembly and installer files and then builds the DLL, MSI, and bootstrapper. That script is the only place the version number is typed by hand, which keeps releases consistent across the generated files.
msbuild QTTabBar\QTTabBar.csproj /p:Configuration=Release /p:SolutionDir="$pwd\\".\Installer\Build-Installer.ps1 -Version 1.5.6.4Community, mirrors, and project background
The project is maintained as an upstream fork by indiff, building on the original work of Quizo. Mirrors exist on GitHub Pages, Gitee, and SourceForge, and the documentation lives on a yuque page and a wiki. The README thanks contributors and lists donation options, and it notes a free JetBrains open source license that supports the work. The tool targets .NET Framework 4.8 and modern Windows, so it fits current systems rather than only legacy ones. With the original author no longer publishing releases, this maintained line is the active way to keep tabbed Explorer working on newer Windows versions.
Editorial conclusion
QTTabBar is a Windows tool that adds tabbed browsing, folder previews, and helper plugins to File Explorer, and it has been updated for .NET 4.8 and the changes in Windows 11. Installation runs through a setup executable that pulls in .NET 4.8 when missing, and activation differs by Windows version: a toolbar tick on Windows 10 and an auto-attach option on Windows 11. Once enabled, double-click to go up a level and hover previews speed up everyday navigation, while the msbuild and installer scripts let developers build from source. For users who miss browser style tabs in File Explorer, QTTabBar is a direct way to add them.
Frequently asked questions
How do I get File Explorer back to normal view?
To return File Explorer to its default appearance, disable QTTabBar by unticking QTTabBar and QT ButtonBar on Windows 10, or turn off the auto-attach option in QTTabBar Options and restart Explorer on Windows 11. Uninstalling the QTTabBar Setup removes the tool entirely and restores the original Explorer.
How do I activate QTTabBar on Windows 11?
On Windows 11, right-click an empty area inside a folder, choose QTTabBar Options, tick the Enable QTTabBar on every Explorer window box on the Window tab, click OK, then restart Explorer from Task Manager. Windows 11 has no classic toolbar menu, so this auto-attach option is required.
What does QTTabBar need to run?
QTTabBar targets .NET Framework 4.8 and modern Windows. The setup executable installs .NET 4.8 automatically if it is not already present, and opening a File Explorer window after install is the first step before activating the tool.
Official sources
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