Software Alternatives, Accelerators & Startups

Flet VS Tkinter

Compare Flet VS Tkinter and see what are their differences

Flet logo Flet

Build internal web apps quickly in the language you already know.

Tkinter logo Tkinter

Tkinter is a Python wrapper for Tcl/Tk that offers classes to create various graphical user interfaces.
  • Flet Flet Studio
    Flet Studio //
    2026-06-23
  • Tkinter Landing page
    Landing page //
    2023-08-28

Flet features and specs

  • Single code base for any device
    Your app will equally look great on iOS, Android, Windows, Linux, macOS and web.
  • Build an entire app in Python
    Build a cross-platform app without knowledge of Dart, Swift, Kotlin, HTML or JavaScript - only Python!
  • 150+ built-in controls and services
    Beautiful UI widgets with Material and Cupertino design: layout, navigation, dialogs, charts - Flet uses Flutter to render UI.
  • 50+ Python packages for iOS and Android
    Numpy, pandas, pydantic, cryptography, opencv, pillow and other popular libraries.
  • Full web support
    Flet apps run natively in modern browsers using WebAssembly and Pyodide, with no server required. Prefer server-side? Deploy as a Python web app with real-time UI updates.
  • Built-in packaging
    Build standalone executables or bundles for iOS, Android, Windows, Linux, macOS and web. Instantly deploy to App Store and Google Play.
  • Test on iOS and Android
    Test your project on your own mobile device with Flet App. See your app updates as you make changes.
  • Extensible
    Easily wrap any of thousands of Flutter packages to use with Flet or build new controls in pure Python using built-in UI primitives.
  • Accessible
    Flet is built with Flutter which has solid accessibility foundations on Android, iOS, web, and desktop.
  • Community and Documentation
    Extensive, well-maintained documentation and an active global community of developers.
  • Flet Studio
    An online development environment featuring a gallery of runnable, editable, and shareable examples that helps developers learn, prototype, and collaborate directly in the browser.

Tkinter features and specs

  • Built-in Standard Library
    Tkinter comes bundled with Python, so there is no need for additional installations. This makes it highly accessible and quick to set up for projects.
  • Ease of Use
    Tkinter provides a simple syntax and an easy-to-understand system for building GUI applications, making it ideal for beginners who are just starting with programming.
  • Cross-Platform Compatibility
    Tkinter applications can run on multiple operating systems like Windows, macOS, and Linux without modification, which ensures broader audience reach.
  • Strong Community Support
    Being part of Python's standard library means that Tkinter benefits from Python's extensive community support, with plenty of tutorials and resources available online.
  • Object-Oriented Approach
    Tkinter supports an object-oriented programming model, which allows for structuring code in a manageable way, especially for larger applications.

Possible disadvantages of Tkinter

  • Limited Widget Set
    Compared to more modern GUI frameworks, Tkinter has a limited set of widgets and may not support advanced user interface features that newer applications might require.
  • Outdated Look and Feel
    The default Tkinter themes and styles may look outdated by modern standards, which might not be suitable for applications where a contemporary design is important.
  • Performance Limitations
    Tkinter may not perform well with applications requiring high-performance graphics or real-time updates, as it is not optimized for these tasks.
  • Learning Curve for Complex Applications
    While simple to use for basic applications, building more complex UI components can become challenging and might require a deeper understanding of the Tkinter framework.
  • Lack of Advanced Features
    Some advanced features like drag-and-drop, custom widgets, or native look and feel on different platforms might be either missing or require additional work to implement.

Flet videos

Flet Tutorials

More videos:

  • Tutorial - Flet + Python: Build a Cross-Platform App (Desktop | Mobile | Web) in 30 Minutes
  • Tutorial - Flet Tutorials

Tkinter videos

Which is Better Kivy Or Tkinter? - Python Kivy GUI Tutorial #42

More videos:

  • Review - Python Programming 93 - Review of Tkinter
  • Tutorial - Tkinter Course - Create Graphic User Interfaces in Python Tutorial

Category Popularity

0-100% (relative to Flet and Tkinter)
Application And Data
100 100%
0% 0
Development
0 0%
100% 100
Developer Tools
43 43%
57% 57
Development Tools
40 40%
60% 60

Questions & Answers

As answered by people managing Flet and Tkinter.

What makes your product unique?

Flet's answer

Flet enables developers to build web, desktop, and mobile applications from a single Python codebase without requiring frontend frameworks, while offering a rich set of built-in UI controls, instant deployment, and an integrated online playground with runnable examples.

How would you describe the primary audience of your product?

Flet's answer

Python developers, data scientists, educators, startups, and software teams looking to build modern cross-platform applications quickly without needing frontend development expertise.

Which are the primary technologies used for building your product?

Flet's answer

Python, Flutter, Dart, FastAPI, WebSockets, and modern web technologies. Flet combines Python on the backend with Flutterโ€™s rendering engine to deliver cross-platform applications for web, desktop, and mobile from a single codebase.

Why should a person choose your product over its competitors?

Flet's answer

Flet has an exceptionally low learning curve, allowing developers to build real web, desktop, and mobile applications with Python and see results in minutes. A single codebase runs across all major platforms, with built-in packaging and deployment support, helping developers move from idea to production faster and with less complexity than traditional cross-platform frameworks.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Flet and Tkinter

Flet Reviews

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Tkinter Reviews

25 Python Frameworks to Master
Itโ€™s a great option for creating simple and easy-to-use graphical user interfaces in Python and allows you to add a GUI to your already working scripts pretty easily. PySimpleGUI wraps the power of 4 different GUI libraries, PySide, Tkinter, wxPython, and Remi.
Source: kinsta.com
Which Python GUI library should you use? Comparing the Python GUI libraries available in 2023
Tkinter is a simple library with support for standard layouts and widgets, as well as more complex widgets such as tabbed views & progressbars. Tkinter is a pure GUI library, not a framework. There is no built-in support for GUIs driven from data sources, databases, or for displaying or manipulating multimedia or hardware. However, if you need to make something simple that...
10 Best Python Libraries for GUI
Another top Python library for GUI is Tkinter, which is an open-source Python Graphic User Interface library. It is well known for its simplicity and comes pre-installed in Python, meaning there is no work on your part. These features make it a great choice for beginners and intermediates, but it is not capable of carrying out larger-scale projects.
Source: www.unite.ai
Top 10 Python GUI Frameworks for Developers
Often referred to as the go-to GUI toolkit by a majority of Python developers, Tkinter was created to equip modern developers with a standard interface to the Tk GUI toolkit with its Python bindings. In Tkinterโ€™s world, most of the visual elements that weโ€™re familiar with are called widgets, and each of these widgets offers a different level of customizability.

Social recommendations and mentions

Flet might be a bit more popular than Tkinter. We know about 43 links to it since March 2021 and only 41 links to Tkinter. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Flet mentions (43)

  • The text mode lie: why modern TUIs are a nightmare for accessibility
    > a locked down GUI that is efficient to use and designed to display the data that the commandline tools produce [...] You can have all that. There are various data presentation tools out there (one I can think of right now is Streamlit as I tried it out a few months ago, but I'm not really a data person, Python is just my primary language). For a more general GUI framework that's pretty easy to use and still full... - Source: Hacker News / 3 months ago
  • Add Authentication and SSO to Your Flet App
    Creating cross-platform applications has become much easier with frameworks like Flet. Flet allows developers to build modern web, desktop, and mobile apps using Python. Its simplicity and flexibility help developers focus on creating great user experiences without having to worry about platform-specific complexities. - Source: dev.to / 3 months ago
  • MicroPythonOS graphical operating system delivers Android-like user experience
    Interesting. Would want to see this going on actual Android. Especially since I have a few Python GUI projects going which I intend to use on Android (but currently using flet). https://flet.dev. - Source: Hacker News / 6 months ago
  • FletX: Bring Reactive Power to Your Python UI with GetX-Like Simplicity
    Meet FletX โ€” a lightweight framework built on top of Flet that brings reactivity and clean architecture to Python GUI apps. - Source: dev.to / about 1 year ago
  • From Codecademy to Programming: My First Python Flet App For Managing Shopping List
    As part of my final project for the "Fundamentals of Programming" in Codecademy Computer Science course, I wanted to build something practical that could also help me reinforce my understanding of programming fundamentals. With that in mind, I created a simple but fully functional shopping list app using Fletโ€”a Python framework for building beautiful UIs without needing to dive into web development. This app... - Source: dev.to / about 1 year ago
View more

Tkinter mentions (41)

  • Migrating from Go to Rust
    Python has sqlite3[0], curses (tui) [1], and tkinter[2] in the stdlib. [0] https://docs.python.org/3/library/sqlite3.html [1] https://docs.python.org/3/library/curses.html [2] https://docs.python.org/3/library/tkinter.html. - Source: Hacker News / about 2 months ago
  • Stdwin: Standard window interface by Guido Van Rossum [pdf]
    The other popular option for cross-platform UI apps was Tcl/Tk: https://en.wikipedia.org/wiki/Tk_(software) ...which even leaked into other language ecosystems like Python: https://docs.python.org/3/library/tkinter.html. - Source: Hacker News / 4 months ago
  • Vibe coding: Time Zone Clock
    ChatGPT understood the hardware and it's limitations, the touchscreen monitor and along with my requirements, we found and used Tkinter which runs on Python. The benefits were it was lightweight, no web stack, runs fast, no browser, no network dependency and customization options. What's really cool is I wanted to have a visual of this idea and requested ChatGPT to generate an image base on my idea and it gave me... - Source: dev.to / 7 months ago
  • Multi Client TCP Chat with Tkinter
    A TCP socket-based chat application allows multiple clients to communicate with a central server in real time. This tutorial walks through building a multi-client chat application using Pythonโ€™s socket and threading modules for backend communication and Tkinter for a graphical user interface (GUI). This is a great project to learn about networking, concurrency, and GUI development. - Source: dev.to / 10 months ago
  • Building a Lightweight OCR-Powered Receipt Parser
    Tkinter Documentation โ€“ Official Python Tkinter library documentation. - Source: dev.to / over 1 year ago
View more

What are some alternatives?

When comparing Flet and Tkinter, you can also consider the following products

Kivy - Open source Python framework for rapid development of applications that make use of innovative user interfaces, such as multi-touch apps. Installation on WindowsInstallation on Windows. Installation; What are wheels .

PyQt - Riverbank | Software | PyQt | What is PyQt?

Flutter - Build beautiful native apps in record time ๐Ÿš€

PySimpleGUI - A simple to use GUI that can create custom GUIs

BeeWare - Write your apps in Python and release them on iOS, Android, Windows, MacOS, Linux, Web, and tvOS...

MD Python Designer - A drag and drop GUI Designer that uses a combination of Tkinter and its own code.