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Best Cross-Platform App Development Frameworks in 2026

Frameworks for cross-platform app development support software that runs on Windows, macOS, Linux, iOS, Android, and the web. This list is for people choosing a framework on a budget.

  1. 1

    B4X

    Free plan AndroidiPhoneLinux+2

    B4X spans mobile, desktop, server and IoT development, with free tools and paid licenses. Review B4i's requirements and hosted builder limit if iOS development is part of your plans.

    7.7 Free plan · paid from $59 Visit site
  2. 2

    Felgo

    by Felgo
    Free plan AndroidAPIExtension+5

    Felgo combines cross-platform app development, game tools, and device integrations in a Qt-based SDK. Review the annual turnover limits and billing terms for the license that fits your organization.

    7.5 Free plan · paid from €79/mo (annual) Visit site
  3. 3

    GitHub CodeQL

    Free plan ExtensionLinuxMac+3
    7.4 Free plan · paid from $30/mo Visit site
  4. 4

    Haxelib

    by Haxelib
    Free plan APILinuxMac+1

    Choose Haxelib if you develop with Haxe and want a free library manager for central, private, or local libraries.

    7.4 Free plan Visit site
  5. 5

    Ionic Framework

    Free plan AndroidiPhoneWeb

    Choose Ionic Framework if you want a free, MIT-licensed toolkit for building mobile and web apps with one codebase and web languages.

    7.2 Free plan Visit site
  6. 6

    Lazarus

    Free plan LinuxMacWindows

    Pick Lazarus for a free Free Pascal IDE that combines visual form design with editing, building, debugging, and testing.

    7.2 Free plan Visit site
  7. 7

    Avalonia

    Free plan AndroidiPhoneLinux+3
    7.1 Free plan · paid from €299/user/yr Visit site
  8. 8

    Qt Creator

    Free plan AndroidiPhoneLinux+3

    Qt Creator covers editing, builds, testing, and debugging across several application targets.

    7.1 Free plan · paid from €546/user/yr Visit site
  9. 9

    Framework7 Icons

    Free plan Web

    Framework7 Icons offers a free, separately installed icon font with several web-friendly formats and framework integrations.

    7.0 Free plan Visit site
  10. 10

    Tauri Bundler

    Free plan AndroidiPhoneLinux+2

    Tauri Bundler provides packaging routes across desktop and mobile platforms, with command-line and CI guidance.

    7.0 Free plan Visit site
  11. 11

    Xojo

    Free plan AndroidiPhoneLinux+3

    Xojo offers a shared development environment for desktop, web, and mobile targets, with a visual mobile layout editor and device access.

    6.9 Free plan · paid from $499 Visit site
  12. 12

    Ultimate++

    Free plan LinuxMacWindows

    Ultimate++ combines a broad C++ toolset with package management and multiple compiler choices at no cost. Mobile support is limited, and macOS debugging has a documented issue.

    6.8 Free plan Visit site
  13. 13

    Smartface

    Free plan AndroidiPhoneLinux+3

    Smartface brings app design, coding, previews, debugging, and release tools into a development platform for native iOS and Android apps.

    6.7 Free plan Visit site
  14. 14

    Compose Multiplatform

    Free plan AndroidiPhoneLinux+3
    6.6 Free plan Visit site
  15. 15

    Apache Cordova

    Free plan AndroidiPhoneWeb
    6.5 Free plan Visit site
  16. 16

    BeeWare

    Free plan AndroidiPhoneLinux+3
    6.5 Free plan Visit site
  17. 17

    Dioxus

    Free plan AndroidiPhoneLinux+3
    6.5 Free plan Visit site
  18. 18

    AtomJS

    Free plan LinuxMacWindows
    6.4 Free plan Visit site
  19. 19

    Capacitor

    Free plan AndroidiPhoneWeb
    6.4 Free plan Visit site
  20. 20

    CopperSpice

    Free plan LinuxMacWindows
    6.4 Free plan Visit site
  21. 21

    Enlightenment Foundation Libraries

    Free plan LinuxMacWindows
    6.4 Free plan Visit site
  22. 22

    Flet

    Free plan AndroidiPhoneLinux+3
    6.4 Free plan · paid from $25/mo Visit site
  23. 23

    Flutter

    by Google
    Free plan WebWindowsMac+3
    6.4 Free plan Visit site
  24. 24

    Fyne

    Free plan AndroidiPhoneLinux+3
    6.4 Free plan Visit site
  25. 25

    Dear PyGui

    Free plan LinuxMacWindows
    6.3 Free plan Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare free plans, free trials, and licence terms before you commit. Review supported targets, app types, languages, native API access, shared-code model, IDE support, and any paid price for features beyond the free option.

Questions

Can I begin with no payment?

Yes. Items in this category include free-plan options. Check the plan's terms and limits before starting a project.

Do any entries provide free trials?

Certain tools on this list provide a free trial. Check the trial period, included features, and what happens when it ends.

What operating systems and environments do these frameworks support?

The listed targets span Windows, macOS, Linux, iOS, Android, and the web. Check a framework's supported targets for your project.

Which factors matter besides cost?

Assess supported targets, app types, languages, native API access, shared-code model, and IDE support.

What paid prices are listed?

Avalonia lists paid plans from €299 per user per year. B4X lists paid plans from $59. Other items show a free pricing model in the supplied facts.

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