B4X

Develop Android, iOS and IoT applications

Main Content

Simple, powerful and modern
development tools.

With B4X, anyone who wants to, can develop real-world solutions.

 Big news: B4A is now free and open source!

B4X suite supports more platforms than any other tool

ANDROID | IOS | WINDOWS | MAC | LINUX | ARDUINO | RASPBERRY PI | ESP8266/ESP32 | AND MORE…

B4X RAD tools include all the features needed to develop great, real-world solutions.

Compiled applications (iOS, Android, Arduino and ESP8266) are 100% native without any dependencies.

B4X programming language is a modern version of Visual Basic. It is simple and powerful.

An active and friendly community with more than 100k developers.

We are doing our best to help you get your job done!

Our Products

B4A

  • Android
  • 100% free

More Info

B4i

  • iOS
  • Develop iOS apps on Windows!

More Info

B4J

  • Desktop, server and Raspberry Pi
  • 100% free

More Info

B4R

  • Arduino & ESP8266 boards
  • 100% free

More Info

Testimonials

More stories in the user stories forum

User Stories   

B4A vs. Android Studio challenge:
Click here to read about the challenge and find out who won big time...

Peter Simpson   

"Being able to leverage the VB-like code across both Android and iOS was a major selling point during my job interview, as was the fact that I have numerous apps on both stores."

Mark D. Turney   

"Thanks to B4A and you guys with your help I got a permanent job developing Android apps for a Company, and I sold my app (see CNC Sheet) to another company."

Alfred Schenker   

"I really enjoy B4i, this is a wonderful tool. I never thought that it would be so easy to develop for iOS."

Ilan Tetrusashvili   

"I downloaded the trial, completed the tutorials and purchased the Enterprise version within a few hours.
I've made more progress with B4A in 3 hours than I have in 3 months with other Android IDEs."

Morgan Matthews