FastAIX Studio — Visual Extension Builder for MIT App Inventor & Kodular

Full extension creation with Zelos blocks, cascading official tree, local or cloud compilation server, and official FAST-CLI tools (always updated to the latest version) are completely free. Sign in to unlock the Studio and start coding.

terminal

FAST-CLI Official — Always the Latest Version

Full support for build, sync, clean, jetify, migrate, create, and upgrade commands with all optimization flags (-r, -s, -b, --core-lib, -dx, -shadow, -minSdk, -target, -case, -all). Always running the latest official FAST-CLI release.

bolt

Modern Threading

Non-blocking background execution with AsynchUtil, CompletableFuture, and UI thread dispatch. Zero obsolete AsyncTask.

settings

Data & Yail Mutators

Gear mutators to dynamically expand YailList and YailDictionary items, plus JSON converters and sorting.

psychology

In-Editor AI Assistant

Generate Java code using OpenAI (gpt-4o), Anthropic Claude (3.7 Sonnet), or DeepSeek, with AES-encrypted client keys.

account_tree

Cascading Project Tree

Official FQCN directory structure mirroring fast create Teste (assets, deps, fast.yml, out, src, proguard-rules).

cloud_done

Local & Cloud Server Build

Compile .aix extensions with full Java, Kotlin, JAR/AAR dependencies, and R8 via our companion local or remote FAST-CLI server. Cloud project saving via Firestore for Premium supporters ($3.99 USD/mo).

FastAIX FAST-CLI
sync Blocks Synced
favorite Donate
all_inclusive 100% Free & Unlimited

Extension Icon & Image Manager (assets/ & fast.yml Compilation)

Upload custom PNG/SVG images from your PC or URL. Images are renamed, stored in assets/, auto-referenced under assets: in fast.yml, and compiled into the .aix package.

Icon Preview
Icon synced in assets/icon.png and saved in fast.yml assets: section

External Dependencies & Libraries (JAR, AAR, AAB or URL)

Add libraries to deps/ or reference via URL/Maven coordinate. Entries are automatically added under dependencies: in fast.yml.

Libraries Declared in fast.yml: 2 active
Asset Files (Images, Audio, Configs):

Packaged into the .aix archive and declared under assets: in fast.yml.

Component Properties (@Component)

FAST-CLI uses clean @Component annotations without legacy @SimpleObject wrappers.

functions
1
Functions (@Function)
notifications_active
0
Events (@Event)
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0
Properties (@Property)
Cascading Tree
fast.yml
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fast.yml • YAML Ln 1, Col 1 UTF-8 0 chars
Java Source Code for Jewel's FAST-CLI
Clean Fast-CLI syntax (@Component, @Function, @Event, @Property) without obsolete annotations.

      


      
      

        

          

            

              

                
FAST-CLI Configuration (`fast.yml`) — Always Latest Version

                
Official configuration template for Jewel's latest FAST-CLI compiler.

              

              FAST-CLI v8.1.0
            

            
            

              
              
              
            


            
            

              FAST-CLI v8.1.0 Optimization Parameters & Flags
              

                
                
                
                
                
                
                
                
              

            

          


          
          

            Active `fast.yml` File Content:
            

          

        

      


      
      

        

          

            
Official FAST-CLI v8.1.0 Guide, Dependencies & Server

            
Learn how to configure fast.yml v8.1.0, manage JAR/AAR/AAB dependencies (deps/), compile images/assets, and host your own compilation server.

          

        

      

    


    
    


    
    

      
      

        
        

        

          
          
          
          
        


        

        
      


      
      

        
        

          

            FAST-CLI Terminal (Always Latest Version)
            

              
              
            

          

          

            

  __           _   
 / _| __ _ ___| |_ 
| |_ / _` / __| __|
|  _| (_| \__ \ |_  v8.1.0
|_|  \__,_|___/\__| FAST-CLI
            

            
[READY]INFOClick "Compile AIX" to build your extension with the FAST-CLI server.

          

        


        
        

        
        

        
        
      


      
      

        

          Components in Extension