QDarkStyle
The most complete dark/light style sheet for C++/Python and Qt applications
Decision gist · record as of 2026-08-14
Yes, if you are building a Qt application and want a polished dark or light theme without custom stylesheet work. The package is stable, widely used, and carries no security issues. The aging maintenance (last release 990 days ago) is a minor concern for new features but not a blocker for theme application. Install it if your project uses a Qt binding; skip it if you prefer full control over styling or are using a non-Qt framework.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires a Qt binding (PyQt5, PyQt6, PySide2, or PySide6) to be installed separately; QDarkStyle itself does not bundle Qt.
- Low install friction with a single runtime dependency (qtpy).
- Maintenance status is aging—last release was 2023-11-28, over 990 days ago—but the repository remains active and unarchived with 3081 stars, suggesting the package is stable and widely used despite infrequent updates.
License · maintenance · safety
MIT (permissive) — MIT license is permissive, allowing use in commercial and proprietary projects with minimal restrictions; you must include a copy of the license but face no copyleft obligations.
last release 2023-11-28 (990 days) · last repo commit 2025-07-16 · 3,081 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 243,635 downloads/mo, #8,784 on PyPI
Alternatives
Verify before relying
pip install qdarkstyle
import qdarkstyle
dark_stylesheet = qdarkstyle.load_stylesheet()
# Then pass to your Qt application's setStyleSheet() method- Whether the package actively maintains compatibility with the latest PyQt6 and PySide6 releases given the aging maintenance status.
- Whether light theme support is as complete and well-maintained as dark theme support.
What it is and what it does
QDarkStyle is a stylesheet library that applies professionally designed dark and light themes to Qt applications. It abstracts away the complexity of loading stylesheets across different Qt bindings and wrapper libraries, providing functions to retrieve the appropriate stylesheet for your binding, which you then pass to your application's setStyleSheet() method.
The library is mature and widely adopted (3081 GitHub stars, 243635 monthly downloads), but maintenance is aging—the last release was in November 2023. It carries no known security vulnerabilities and has a permissive MIT license. Its single runtime dependency is qtpy, keeping installation friction low. Python 2 and Qt4 support have been formally deprecated, though the code remains in place.
Use it for
- Apply a dark theme to a desktop application without writing custom stylesheets.
- Build a cross-platform Qt application that maintains consistent styling across multiple Qt bindings.
- Quickly prototype a GUI application with a professional dark mode appearance.
- Switch between dark and light themes by loading different stylesheets via load_stylesheet functions.
- Use QtPy's environment-based Qt binding detection to automatically load the correct stylesheet.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building a Qt application and want a polished dark or light theme without custom stylesheet work.
The package is stable, widely used, and carries no security issues. The aging maintenance (last release 990 days ago) is a minor concern for new features but not a blocker for theme application. Install it if your project uses a Qt binding; skip it if you prefer full control over styling or are using a non-Qt framework.
Install
qdarkstyle on PyPI
Before you install
Low install friction with a single runtime dependency (qtpy). Maintenance status is aging—last release was 2023-11-28, over 990 days ago—but the repository remains active and unarchived with 3081 stars, suggesting the package is stable and widely used despite infrequent updates.
Requires a Qt binding (PyQt5, PyQt6, PySide2, or PySide6) to be installed separately; QDarkStyle itself does not bundle Qt.
License in practice
MIT license is permissive, allowing use in commercial and proprietary projects with minimal restrictions; you must include a copy of the license but face no copyleft obligations.
Quickstart
pip install qdarkstyle
import qdarkstyle
dark_stylesheet = qdarkstyle.load_stylesheet()
# Then pass to your Qt application's setStyleSheet() methodVerify before relying
- Whether the package actively maintains compatibility with the latest PyQt6 and PySide6 releases given the aging maintenance status.
- Whether light theme support is as complete and well-maintained as dark theme support.
Package facts
| License | MIT permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packageqtpy |
| Maintenance | Aging 990 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 243,635 / month, #8,784 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableEnvironment :: Win32 (MS Windows)Environment :: X11 Applications :: QtIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: MacOSOperating System :: Microsoft :: WindowsOperating System :: POSIX :: LinuxProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Topic :: Software Development :: Libraries :: Application Frameworks |
Evidence: QDarkStyle-3.2.3-py2.py3-none-any.whl
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See also qt-material · darkdetect · QtPy · superqt · pyqt5-tools · PySide6 · sv-ttk · PySide2 · PyQt5 · pytest-qt