zephyrproject-rtos/zephyr

Health v2 · maintenance only

Adoption not part of the score

16316 stars · 9847 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Zephyr is a scalable, secure, real-time operating system (RTOS) designed for resource-constrained embedded devices across multiple hardware architectures. It provides a small-footprint kernel supporting ARM, x86, RISC-V, ARC, Xtensa, and other architectures for IoT and embedded applications.

Use cases

• build firmware for IoT sensors and wearables
• develop real-time applications on microcontrollers
• create Bluetooth Low Energy devices
• run an RTOS on RISC-V or ARM Cortex-M boards
• build secure connected embedded products
• prototype embedded systems across multiple architectures

When to choose

• you need a small-footprint RTOS for resource-constrained hardware
• you want broad multi-architecture support (ARM, RISC-V, x86, Xtensa, etc.)
• you need built-in Bluetooth/Bluetooth LE and networking stacks
• security is a priority for your embedded product
• you want a permissively licensed (Apache-2.0) OS with active community support

When to avoid

• you need a full-featured general-purpose OS like Linux for application-rich devices
• your target hardware is not among the supported architectures or boards
• you prefer a proprietary or commercially supported RTOS with vendor guarantees
• you are working on non-embedded systems such as desktop or server software

Facets

library · maturity stable

embedded iot security networking embedded-systems iot operating-systems embedded iot c rtos real-time-operating-system microcontroller kernel zephyr resource-constrained multi-architecture bluetooth arm risc-v x86

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markdown · JSON · MCP: product_card(name="zephyrproject-rtos/zephyr")