1. Mongoose OsMongoose OS - an IoT Firmware Development Framework. Supported microcontrollers: ESP32, ESP8266, CC3220, CC3200, STM32F4, STM32L4, STM32F7. Amazon AWS IoT, Microsoft Azure, Google IoT Core integrated. Code in C or JavaScript.
2. MjsonC/C++ JSON parser, emitter, JSON-RPC engine for embedded systems
3. MjsEmbedded JavaScript engine for C/C++
4. V7Embedded JavaScript engine for C/C++
7. PolarPorarSSL <-> OpenSSL compatibility layer
8. FrozenJSON parser and generator for C/C++ with scanf/printf like interface. Targeting embedded systems.
9. SlreSuper Light Regexp engine for C/C++
10. FossaAsync non-blocking multi-protocol networking library for C/C++
14. elkA low footprint JavaScript engine for embedded systems