Software Alternatives, Accelerators & Startups

JavaFX VS Flet

Compare JavaFX VS Flet and see what are their differences

JavaFX logo JavaFX

JavaFX is the next step in the evolution of Java as a rich client platform.

Flet logo Flet

Build internal web apps quickly in the language you already know.
  • JavaFX Landing page
    Landing page //
    2023-06-18
  • Flet Landing page
    Landing page //
    2023-08-28

JavaFX features and specs

  • Rich UI Controls
    JavaFX provides a wide range of built-in UI controls, such as buttons, tables, and charts, which makes it easy to create complex user interfaces.
  • FXML Support
    JavaFX allows developers to use FXML, a scripting interface that enables them to design user interfaces with XML, separating the logic from design, enhancing maintainability.
  • CSS Styling
    The framework supports CSS for styling UI components, offering flexibility in design and the ability to create visually appealing applications.
  • Scene Graph
    JavaFX's scene graph provides a hierarchical structure for managing the layout, simplifying the development of complex UIs with animations and transformations.
  • Cross-Platform
    JavaFX applications are cross-platform, allowing developers to run the same application on different operating systems without modifications.
  • Integration with Java
    As a part of the Java ecosystem, JavaFX integrates seamlessly with existing Java libraries and tools, benefiting from Java's robust environment.

Possible disadvantages of JavaFX

  • Steeper Learning Curve
    Despite its powerful features, JavaFX can be challenging to learn for beginners, especially those not familiar with Java.
  • Limited Third-Party Libraries
    Compared to other UI frameworks like Swing or frameworks outside of Java, JavaFX has a relatively smaller ecosystem of third-party libraries and tools.
  • Performance Issues
    JavaFX might face performance challenges, particularly when dealing with resource-intensive applications or those requiring very high responsiveness.
  • Mobile Support Limitations
    JavaFX's support for mobile platforms is not as strong as other frameworks, requiring additional tools or platforms like Gluon for mobile development.
  • Market Adoption
    The adoption of JavaFX in the industry is not as widespread as other technologies like React or Angular, which might influence community support and development resources.

Flet features and specs

  • Ease of Use
    Flet provides a straightforward API that simplifies the process of building interactive web applications, making it accessible even to those with minimal web development experience.
  • Cross-Platform Support
    Flet supports multiple platforms, allowing developers to create applications that can run seamlessly across different devices and operating systems.
  • Rapid Development
    With a focus on fast development cycles, Flet enables developers to quickly prototype and deploy applications, significantly reducing time to market.
  • Rich UI Components
    Flet offers a wide range of built-in UI components that help developers create visually appealing and functional interfaces without having to start from scratch.
  • Community and Documentation
    Flet comes with comprehensive documentation and an active community, providing valuable resources and support for developers throughout the development process.

Possible disadvantages of Flet

  • Limited Customization
    While Flet offers many built-in components, the level of customization available may not satisfy developers looking for highly tailored UI experiences.
  • Dependency on Flet Ecosystem
    Developers are tied into the Flet ecosystem, which could pose challenges if they need to integrate with other tools or want to migrate away in the future.
  • Performance Concerns
    As with many high-level frameworks, there might be performance overheads, especially for resource-intensive applications.
  • Learning Curve
    Although designed for ease of use, developers familiar with other web development frameworks may need time to learn and adapt to Flet's unique features and paradigms.
  • Emerging Technology
    Being a relatively new technology, Flet might still be undergoing changes, which may lead to stability issues or lack of long-term support.

JavaFX videos

JavaFX Project Car Review #6 Homepage GUI and Controller

More videos:

  • Review - JavaFX will be removed from JDK 11
  • Review - JavaFX Projects Car Review #2 Login and GUI Controllers

Flet videos

FLET Can Cooler กระป๋องน้ำจะไม่หายเย็นก่อนกินหมดอีกต่อไป - Pond Review

More videos:

  • Review - FLET Tumbler รุ่นใหม่ แก้ปัญหาของตัวเก่าได้ครบทุกจุด! - Pond Review
  • Review - Ekskluzive/ Detaje të reja nga vrasja e Shëngjinit, flet familjarja e Lekstakajve Nertila Haxhia

Category Popularity

0-100% (relative to JavaFX and Flet)
Development Tools
67 67%
33% 33
Application And Data
0 0%
100% 100
Rapid Application Development
Cross-Platform Development

User comments

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Social recommendations and mentions

Flet might be a bit more popular than JavaFX. We know about 38 links to it since March 2021 and only 37 links to JavaFX. 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.

JavaFX mentions (37)

  • JBang, the missing scripting tool of the Java ecosystem
    JavaFX is a desktop and UI framework. Its official website is openjfx.io and is also supported by Gluon which provides additional UI components and brings mobile app support to JavaFX. JBang supports this frameowrk and can be used to create signle file JavaFX applications. - Source: dev.to / 4 months ago
  • Home to Anything JavaFX Related
    It has a very active community, nothing is dead when there are active users. It has been living as independent package for a long time https://openjfx.io. - Source: Hacker News / 9 months ago
  • Book review - Frontend Development with JavaFX and Kotlin
    Other topics handled in this chapter are Kotlin utilities for JavaFX and direct downloads of JavaFX releases from openjfx.io. The author also explains why FXML is not used in the book. I agree with his view that the XML files are not as dynamic as code and bring a mix of technologies into your project. - Source: dev.to / 12 months ago
  • Setting up Continuous Integration
    One, I don't understand Java environments really well. All I have done so far is create some GUI applications using JavaFX. Wish I could share my code, but unfortunately, its part of my assignments and can't be open-sourced. Second, the instructions I found in the Contributing docs were bare-minimum, and kinda hard to follow for a beginner. An experienced Java developer would get them really quickly, no doubt... - Source: dev.to / over 1 year ago
  • How to use the JavaFX library Medusa to display weather data
    JavaFX (an open source, next generation client application platform for desktop, mobile and embedded systems) has many useful out the box UI controls to build modern interactive desktop apps. These include buttons, checkboxes, list views, labels etc, that can be configured and styled in countless ways. I’ve using them for many years at work building mapping apps! - Source: dev.to / over 1 year ago
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Flet mentions (38)

  • Using Uv and PEP 723 for Self-Contained Python Scripts
    It's more the latter, particularly when Rust is used in libraries (eg. FastAPI) as opposed to tools, as it's destroying portability. For example I use flet[0] in some of my projects, and I have to be increasingly careful about the other dependencies as there is no support for the Rust toolchain within Dart/Flutter, and even if there was it still sounds like it'd be a nightmare to maintain. Same applies to any... - Source: Hacker News / about 1 month ago
  • All Data and AI Weekly #182 - 24-March-2025
    Cool Stuff of the week ⚡️ https://flet.dev/. - Source: dev.to / about 1 month ago
  • Show HN: Robyn – "Batman Inspired" Python Web Framework Built with Rust
    The problem with all this combining is that it's making apps less portable. Like I want to make apps that work on desktop+mobile with flet[0], but now I have to specifically seek out more "traditional" alternate packages and hope they stayed in reasonable feature parity with these Rustified Frankensteins. Not a fan at all. [0] https://flet.dev. - Source: Hacker News / 2 months ago
  • Building a calculator using Flet with python
    In line 7 we define the main app instance to Page; a page is a container for View Controls. So here I won’t go deep into views since it’s beyond the scope of this tutorial, but you reference here. - Source: dev.to / 8 months ago
  • Kivy – a cross platform Python UI framework
    One cross platform Python framework I found interesting is flet https://flet.dev/ It's powered by Flutter behind the scenes and familiar enough so that you can translate most things from Flutter/Dart tutorials to Flet. - Source: Hacker News / 10 months ago
View more

What are some alternatives?

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

Qt - Powerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.

Flutter - Build beautiful native apps in record time 🚀

Electron - Build cross platform desktop apps with web technologies

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 .

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

Avalonia - A multi-platform .NET UI framework