Jerry script is tiny,It requires Ram less than 64KB for the engine, like its competitors such as MuJS,tiny-js and Ducktape.The code for the engine also accommodates less than 200KB of ROM.
The stable 1.0 release officially supports platforms like :
1. x86-32, x86-64, and ARMv7 Linux
2. NuttX on STM32F4
3. RIOT on STM32F4
4. Zephyr on Arduino 101 and FRDM-K64F
5. mbed OS 3.0 on FRDM-K64F, STM32F4, STM32F429ZI, F401RE
6. Curie BSP on Arduino 101
JerryScript has also experimental support for ESP8266(a low-cost wifi chip with a full TCP/IP stack and microcontroller). Samsung has also developed IOT.js,an IOT framework which is built on JerryScript; and lbuv, an event driven cross-platform asynchronous I/O model similar to node.js which allow developers to create IoT services that communicate with each other and outside world.Presently IOT runs on real-time Linux and NutX –which also targets on other OS like Raspberry Pi2 and an ST board,with plans for MCUs and IoT devices.