CustomTkinter vs PyQt
Side-by-side — pricing, strengths, tradeoffs, and fit.
CustomTkinter
Modern and customizable Python UI library based on Tkinter.
PyQt
Python bindings for the Qt cross-platform application and UI framework.
At a glance
Open SourceFree Tier
● Established·From $0
Open Source
● Established·From Contact sales
Overview
One-liner
One-liner
Modern and customizable Python UI library based on Tkinter.
One-liner
Python bindings for the Qt cross-platform application and UI framework.
Maturity
Maturity
EstablishedMaturity
EstablishedOpen source
Open source
✓ YesOpen source
✓ YesPricing
Free tier
Free tier
✓ AvailableOpen source — free to use
Free tier
✕ NoneStarts at
Starts at
$0
Starts at
Contact sales
Model
Model
Flat rate
Model
Flat rate
Enterprise
Enterprise
✕ NoneEnterprise
✕ NoneBest for
✓ Best for
Python developers who need to create modern-looking UIs quickly and easily
Projects requiring a balance between customization and ease-of-use in GUI development
Developers looking for an alternative to more complex UI frameworks like PyQt or Kivy
✓ Best for
Developers building cross-platform desktop applications in Python who need a comprehensive UI toolkit.
Teams working on projects that require both rich graphical interfaces and the flexibility of Python.
Not ideal for
✕ Not for
Projects that require highly specialized UI components not covered by CustomTkinter's library
Teams needing real-time collaboration features within the UI framework itself
✕ Not for
Projects requiring real-time graphics or game development, as PyQt is more suited for standard GUI applications.
Developers looking for a purely web-based solution for application development.
Strengths
↑ Strengths
Modern and customizable UI components
Enhanced visual design compared to traditional Tkinter
Easy integration with existing Python applications
Active community support and frequent updates
↑ Strengths
Cross-platform application development
Comprehensive set of UI controls and widgets
Signal-slot mechanism for event handling
Supports Pythonic syntax and idioms
Weaknesses
↓ Weaknesses
Limited cross-platform consistency in appearance and behavior
Performance issues with complex UIs
Small community and slower development pace compared to mature frameworks
Documentation lacks depth for advanced use cases
↓ Weaknesses
Steep learning curve for non-Python developers
Frequent breaking changes between versions
Limited native support for modern Python features
Complex setup process, especially on Windows