mcu-tools/mcuboot
Secure boot for 32-bit Microcontrollers! observed · 2026-08-28
Health v2 · maintenance only
80/100
- Activity 97
- Release rhythm 48
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3551
- days_rel: 132
- days_push: 20
- n_releases_24m: 1
Adoption not part of the score
2045 stars · 979 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
MCUboot is a secure bootloader for 32-bit microcontrollers that defines common infrastructure for bootloaders and flash layout, enabling secure firmware upgrades. It is OS-agnostic and ports to Zephyr, Mynewt, NuttX, RIOT, Mbed OS, Espressif, and Cypress/Infineon platforms, with an imgtool Python utility for signing images.
Use cases
- add secure boot to an embedded firmware project
- sign and verify firmware images for a microcontroller
- implement over-the-air firmware updates on IoT devices
- boot Zephyr or Mynewt applications securely
- roll back to a previous firmware version after a failed update
- protect devices against running tampered firmware
When to choose
- you need a proven, widely-ported secure bootloader for 32-bit MCUs
- your RTOS is Zephyr, Mynewt, NuttX, RIOT, or Mbed OS
- you need encrypted, signed, or swappable firmware images with rollback support
When to avoid
- you need a bootloader for Linux SBCs or application processors rather than microcontrollers
- you want a full device-management or OTA cloud service rather than a bootloader
- your MCU is 8-bit or 16-bit
Facets
library · maturity stable
security embedded cryptography embedded-systems iot security developer-tools embedded iot c python secure-boot bootloader firmware-update ota microcontroller image-signing imgtool
1 source
- readme: https://github.com/mcu-tools/mcuboot · fetched 2026-08-28 · 46b50d73f1f3
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| mcu-tools/mcuboot | main | 80 |
For agents
markdown · JSON · MCP: product_card(name="mcu-tools/mcuboot")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem