| ZEN-ZentriOS | ZentriOS STM32 WiFi Software Development Kit (SDK) | Active | SW development suites | Zentri | STM32 | 1.0.0 |
| WITT-RTOS-CORE | SAFERTOS CORE:The RTOS for embedded systems that need to consider safety, but do not require certification | Active | Firmware | Wittenstein High Integrity Systems | STM32 | 1.0.0 |
| STM32-SafeSIL | Functional safety manuals to achieve IEC 61508 Safety Integrity Level (SIL2/3) certification with STM32 | Active | Firmware | ST | STM32F0,STM32F1,STM32F2,STM32F3,STM32F4,STM32L1 |
| CMX-FFS | Flash File System for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| eCC-RedBoot | Standard bootstrap firmware for STM32, from eCosCentric | Active | Firmware | eCosCentric | STM32 |
| eCCSecureSockets | SSL/TLS for STM32, from eCosCentric | Active | Firmware | eCosCentric | STM32 |
| eCC-YAFFS | NAND Flash File System for STM32, from eCosCentric | Active | Firmware | eCosCentric | STM32 |
| PRT-Profinet | Port PROFINET Protocol Stack / Library for STM32 | Active | Firmware | Port | STM32 |
| emtas-CANopen | CANopen Protocol Stack for STM32 | Active | Firmware | emtas | STM32 | - |
| WEI-KNX | Weinzierl KNX standard communication protocols for the STM32 ARM Cortex-M Microcontrollers families (KNX Stack) | Active | Firmware | Weinzierl | STM32 |
| EXP-USB | Express Logic USBX USB stack | Active | Firmware | ExpressLogic | STM32 | 1.0.0 |
| HCC-FFS | All Flashs File Systems with fail-safe mechanisms for STM32, from HCC Embedded | Active | Firmware | HCC Embedded | STM32 |
| eCC-USB | USB Host & Device stacks for STM32, from eCosCentric | Active | Firmware | eCosCentric | STM32 |
| PRT-Powerlink | Port POWERLINK Protocol Stack / Library for STM32 | Active | Firmware | Port | STM32 |
| GRPL-uPython | MicroPython for STM32 | Active | George Robotics Pty Ltd | STM32 |
| CMX-TCP/IP | TCP/IP v4 stack for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| FREE-RTOS | FreeRTOS Real Time Operating System for STM32 ARM Cortex-M Microcontrollers families | Active | Firmware | FreeRTOS | STM32 |
| ALTIA-GUI | Altia DeepScreen for STM32: Graphical user interface (GUI) | Active | Firmware | Altia Inc | STM32 | 1.0.0 |
| EXP-FILE | Express Logic FileX file system | Active | Firmware | ExpressLogic | STM32 | 1.0.0 |
| CMX-MicroNet | TCP/IP v4 with small footprint for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| CMX-RTX | Real Time OS for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| DRA-TouchGFX | TouchGFX graphics framework for STM32 | Active | Application Software | Draupner Graphics | STM32F4 |
| ORYX-TCP | Oryx CycloneTCP TCP/IP stack (IPv4, IPv6) | Active | Firmware | Oryx Embedded | STM32 | 1.0.0 |
| WITT-RTOS | OPENRTOS: High Performance RTOS from WITTENSTEIN high integrity systems | Active | Firmware | Wittenstein High Integrity Systems | STM32 | 1.0.0 |
| eCC-SecureShell | Secure Shell daemon SSH-2 for STM32, from eCosCentric | Active | Firmware | eCosCentric | STM32 |
| EXP-TCP | Express Logic NetX and NetX Duo TCP/IP stacks | Active | Firmware | ExpressLogic | STM32 | 1.0.0 |
| CMX-USBHost | USB Host stack for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| HCC-MISRA-TCP/IP | TCP/IP v4 or v6 stack for STM32, from HCC Embedded | Active | Firmware | HCC Embedded | STM32 |
| PRT-CANopen | Port CANopen Protocol Stack / Library for STM32 | Active | Firmware | Port | STM32F |
| CMX-USBDevice | USB Device stack for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| CMX-INet | TCP/IP v4 or v6 stack for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| TARA-Embd-Wizard | Embedded Wizard graphic framework for STM32 | Active | Application Software | TARA System | STM32F4,STM32F7 |
| TAP-KNX-KAIStack | KNX home automation for STM8 and STM32, from Tapko Technologies GMBH | Active | Firmware | Tapko |
| HCC-USB | USB Host & Device stacks for STM32, from HCC Embedded | Active | Firmware | HCC Embedded | STM32 |
| CMX-CANopen | CANopen Industrial Automation for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| MIC-CANopen | CANopen Master, Slave and Bootloader Protocol Stacks for STM32 ARM Cortex-M Microcontroller families | Active | Firmware | Microcontrol | STM32 |
| eCC-CEE-J | Embedded Java virtual machine for STM32, from eCosCentric | Active | Firmware | eCosCentric | STM32 |
| EXP-RTOS | Express Logic ThreadX Real time operating system (RTOS) | Active | Firmware | ExpressLogic | STM32 | 1.0.0 |
| P&R-ProvenCore | High security operating system from Prove & Run for STM32 ARM Cortex-M microcontrollers | Active | Prove & Run | STM32F1,STM32F2,STM32F3,STM32F4,STM32F7,STM32L1,STM32L4 |
| WITT-RTOS-SAFE | SAFERTOS: The Safety Critical RTOS from WITTENSTEIN high integrity systems | Active | Firmware | Wittenstein High Integrity Systems | STM32 | 1.0.0 |
| PRT-EtherCat | Port EtherCAT Protocol Stack / Library for STM32 | Active | Firmware | Port | STM32 |
| HCC-Bootloaders | Storage, USB or Serial Bootloader for STM32, from HCC Embedded | Active | Firmware | HCC Embedded | STM32 |
| IS2T-MicroEJ | MicroEJ IoT OS for STM32 | Active | Firmware | IS2T | STM32 |
| MIC-J1939 | SAE J1939 Protocol Stack for STM32 ARM Cortex-M microcontroller families | Active | Firmware | Microcontrol | STM32 |
| ORYX-SSL | Oryx CycloneSSL lightweight SSL/TLS implementation | Active | Firmware | Oryx Embedded | STM32 | 1.0.0 |
| Men-Nucleus-SF | Nucleus SmartFit for STM32 | Active | Firmware | Mentor Graphics | STM32 |
| WITT-MW | CONNECT Middleware: TCP/IP, USB and File System components from WITTENSTEIN high integrity systems | Active | Firmware | Wittenstein High Integrity Systems | STM32 | 1.0.0 |
| eCC-CAN | CANopen Industrial Automation for STM32, from eCosCentric | Active | Firmware | eCosCentric | STM32 | - |
| CMX-Tiny | Real Time OS with small footprint for STM32, from CMX Systems Inc | Active | Firmware | CMX Systems Inc | STM32 |
| eCC-eXtremeDB | Embedded in-memory database for STM32, from eCosCentric | Active | Firmware | eCosCentric | STM32 |
