Side by side
FlashDevelop vs GeneXus
Both stand on integrated development environments. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Choose FlashDevelop for a free editor centered on ActionScript and Haxe, with project builds, debugging, web editing, and plugin support. Windows users get the direct application; Mac and Linux users need the alternative compatibility routes described by the project.
Visit FlashDevelop
Choose GeneXus if you need a low-code platform for mission-critical software across mobile, web, and backend targets, with model-based generation and broad deployment options. Its free plan is positioned for a first MVP; production solutions, team collaboration, and priority support are listed under Pro.
Visit GeneXusThe facts
| FlashDevelop | GeneXus | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | No |
| Runs on | Linux, Mac, Windows | Android, API, iPhone, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Free or on request | See the plans |
| Plans published | 1 | 8 |
| Maker | FlashDevelop | Not published |
| Website | flashdevelop.org | genexus.com |
| On integrated development environments | #19 of 65 | #15 of 65 |
FlashDevelop: what it does well
- Free and open source under the MIT license
- Supports ActionScript, Haxe, and web languages
- Built-in debugger with breakpoints and call-stack inspection
- One-click compile and test with project templates
- Extensible through third-party and C# plugins
What to know first
- Windows application requires .NET Framework
- Mac and Linux use relies on virtualization or compatibility software
- Latest stable version is listed as 5.3.3
GeneXus: what it does well
- Generates applications from a model for multiple technologies and platforms.
- Supports native Android and iOS application development.
- Includes Angular, .NET, and Java generators.
- AI agents can work with Knowledge Base objects through skills, CLI, and MCP Server.
- Supports REST, SOAP, OpenAPI, and connections to external systems and databases.
What to know first
- The Free plan is described as a way to build a first MVP.
- Production solutions and team collaboration are listed under Pro.
- Mission-critical systems and maximum security and compliance are listed under Enterprise.
Alternatives to FlashDevelop Alternatives to GeneXus The whole list