Discover how to build your products using outstanding technologies made ready for embedded software developers. MicroEJ tools and libraries enable you to easily create:

  • Custom Virtual Execution Environment (VEE) for your IoT devices
  • Appealing and intuitive embedded graphical user interfaces (GUI)
  • Seamless device and Cloud connectivity
  • Custom application store for your devices and safe distribution of your software assets across your organization and partner ecosystem
Discover MicroEJ

The MicroVG Foundation Library offers rich vector drawing capabilities such as:

  • Creation and drawing of paths with color or linear gradient.
  • Drawing of texts using vector fonts (*.ttf) with color or linear gradient.
  • Drawing of vector images in SVG or AVD formats, animated.
  • Transformation of paths, texts, images with affine transformation matrices.



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Glossary Update Annoucement

We recently renamed our “Platform” denomination to “VEE Port” (Virtual Execution Environment) clarifying associated engineering activity and produced artifacts. Take a look at our updated glossary page to familiarize yourselves with MicroEJ key terminology.

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Ready-to-Use MicroEJ Multi-Sandbox Firmware

Go further with MicroEJ by experimenting with our ready-to-use Multi-Sandbox Executable for the STM32F7508-DK. This tutorial will teach you how to create, test and execute a widget demo easily on a Virtual Device or real development board, without worrying about low-level software or hardware porting.


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Get access to our featured starter kits (available with or without hardware) to let you try and evaluate our technology. Happy coding!

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Discover MicroEJ Runtime

Runtime Embedded DevelopmentMICROEJ VEE is a trusted virtual execution environment in which your applications can be executed in a reliable and secure manner thanks to thorough secure partitioning.


Beautiful fast Embedded GUI by MicroEJ


Build for Embedded GUI

MicroEJ’s embedded GUI solution provides you with efficient tools and libraries to create elegant and effective graphical user interfaces, even on low-cost / low-power processors such as microcontrollers.

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IoT Connectivity


Build for IoT Connectivity

By combining processors dedicated to connectivity (Wi-Fi, BLE, etc.) and various IoT protocols, create your IoT products enabled by rich software content.

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Design with JavaScript

MICROEJ Kifaru opens up embedded development to the millions JavaScript developers across the globe. MICROEJ Kifaru is compatible with all existing MicroEJ libraries (see our resources), but also JavaScript libraries using npm and common JavaScript tools such as Babel.

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Android™ Compatibility Kit

MICROEJ VEE solution now support Android Studio and Gradle, enabling the same application to be developed, simulated, tested, and run on Android and MicroEJ alike.

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MicroEJ Developer Resources



You are already a MicroEJ user and looking for a specific resource for your ongoing project? Go to our resources page to find docs, how-to, examples, libraries, tools, VEE implementations and firmware references in order to build your app or VEE.

Resources and Libraries

MicroEJ Developer Central Repository


Central Repository

On our central repository, you’ll find a wide range of software artifacts that can extend your MICROEJ SDK development environment.

Central Repository

MicroEJ APIs


MicroEJ APIs

Explore Java packages and classes available to application developers.

MicroEJ APIs