Ttkbootstrap screenshot

Ttkbootstrap

Author Avatar Theme by Israel dryer
Updated: 2 Jan 2026
2519 Stars

A modern theming library for Tkinter that adds sleek, responsive styles inspired by Bootstrap. Includes ready-to-use widgets, 20+ themes, and tools for building beautiful, cross-platform desktop apps with ease.

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Overview:

The ttkbootstrap is a theme extension for tkinter, a toolkit for building GUIs in Python. It provides modern flat style themes inspired by Bootstrap, allowing users to easily apply and customize themes to their tkinter applications.

Features:

  • Built-in Themes: Includes over a dozen curated dark and light themes.
  • Pre-defined Styles: Offers beautiful pre-defined widget styles, such as outline and round toggle buttons.
  • Simple keyword API: Applies colors and types using simple keywords, making it easier for users to style their tkinter widgets.
  • Lots of new Widgets: Comes with several new beautifully designed widgets, including Meter, DateEntry, and Floodgauge. Dialogs are also themed and customizable.
  • Built-in Theme Creator: Allows users to easily create, load, explore, and apply their own custom themes.

Installation:

To install ttkbootstrap, follow these steps:

  1. Download the library from the Downloads section on the website.
  2. Extract the downloaded files.
  3. Open your Python IDE or code editor.
  4. Import the ttkbootstrap library into your project.
  5. Start using the theme extension in your tkinter application.

Here’s an example code snippet for importing the ttkbootstrap library:

import ttkbootstrap

For more detailed installation instructions, refer to the documentation or the GitHub repository.

Summary:

The ttkbootstrap theme extension for tkinter provides a convenient and modern way to style tkinter applications with flat themes inspired by Bootstrap. With its built-in themes, pre-defined styles, and simple keyword API, it offers users the ability to easily customize the look and feel of their tkinter widgets. Additionally, the library includes new widgets and a built-in theme creator, further enhancing the flexibility and customization options for tkinter developers.