Software Alternatives, Accelerators & Startups

Adobe Flex

Adobe Flex is a free, open-source framework for building mobile, web, and desktop applications that share a common codebase. Download now. .

Best Adobe Flex Alternatives & Competitors in 2025

The best Adobe Flex alternatives based on verified products, community votes, reviews and other factors.
Filter: 4 Open-Source Alternatives. Latest update:

  1. An open source Flash player

    Open Source

    /ruffle-alternatives
  2. its adobe flash player in webassembly

    /cheerpx-for-flash-alternatives
  3. Ideanote is the #1 rated Idea Management solution for companies of all sizes. Collect, develop and manage more of the right ideas from customers and employees to drive your growth.

    Try for free freemium $49.0 / Monthly (Business Plan, 15 Users)

    Try for free
  4. the webgame preservation project.

    Open Source

    /bluemaxima-s-flashpoint-alternatives
  5. JPEXS Free Flash Decompiler (FFDec) is an opensource Shockwave Flash (SWF) decompiler.

    /jpexs-free-flash-decompiler-alternatives
  6. The Lightspark project

    Open Source

    /lightspark-alternatives
  7. SWF Decompiler Trillix allows you to decompile SWF (Flash), convert SWF to FLA, extract SWF elements and edit SWF file. Supports AS 3.0, Flash CS6 & CC and Flex.

    /flash-decompiler-trillix-alternatives
  8. Sothink SWF Decompiler, a professional Flash decompiler easily decompiles one or more SWF to FLA.

    /sothink-swf-decompiler-alternatives
  9. Articulate Storyline is a program that allows you to create interactive courses of any kind with templates and a simple system. There is a free trial offered so that you can determine whether you want to use the program further or not.

    /articulate-storyline-alternatives
  10. A comprehensive yet easy-to-use authoring tool for creating professional online courses like a pro – even if you’re a complete beginner.

    paid Free Trial $770.0 / Annually (per user / year)

    /ispring-suite-alternatives
  11. SuperNova Player allows systems to play .SWF files in a standalone player launched from any browser.

    /supernova-player-alternatives
  12. SWF File Player is a free player for SWF (Shockwave Flash) files.

    /swf-file-player-alternatives
  13. Adobe Captivate is a rapid responsive authoring tool that is used for creating elearning content...

    /adobe-captivate-alternatives
  14. GNU Gnash is the GNU Flash movie player — Flash is an animation file format pioneered by Macromedia...

    /gnash-alternatives
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