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57 stars written in C
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A flexible distributed key-value database that is optimized for caching and other realtime workloads.

C 24,680 1,018 Updated Feb 5, 2026

Embedded graphics library to create beautiful UIs for any MCU, MPU and display type.

C 22,699 4,018 Updated Feb 5, 2026

John the Ripper jumbo - advanced offline password cracker, which supports hundreds of hash and cipher types, and runs on many operating systems, CPUs, GPUs, and even some FPGAs

C 12,660 2,439 Updated Jan 17, 2026

Kernel source tree for Raspberry Pi-provided kernel builds. Issues unrelated to the linux kernel should be posted on the community forum at https://forums.raspberrypi.com/

C 12,499 5,361 Updated Feb 5, 2026

The single instruction C compiler

C 10,118 414 Updated May 29, 2024

An open source cross-platform USB stack for embedded system

C 6,491 1,352 Updated Feb 5, 2026

A little fail-safe filesystem designed for microcontrollers

C 6,413 962 Updated Jan 9, 2026

GNU toolchain for RISC-V, including GCC

C 4,358 1,349 Updated Jan 23, 2026

Adding support for the Rust language to the Linux kernel.

C 4,317 485 Updated Feb 3, 2026

Jsmn is a world fastest JSON parser/tokenizer. This is the official repo replacing the old one at Bitbucket

C 4,054 806 Updated Jun 9, 2024

Tiny, fast, non-dependent and fully loaded printf implementation for embedded systems. Extensive test suite passing.

C 2,948 545 Updated Apr 3, 2023

Official OpenOCD Read-Only Mirror (no pull requests)

C 2,082 955 Updated Feb 1, 2026

Linux-based partitioning hypervisor

C 1,907 353 Updated May 18, 2024

Simple Open Source EtherCAT Master

C 1,825 822 Updated Aug 15, 2025

CANopen protocol stack

C 1,805 763 Updated Nov 22, 2025

View .brd files

C 1,599 300 Updated Jan 3, 2026

Skip the HTML, Bypass takes markdown and renders it directly on Android and iOS.

C 1,528 192 Updated Apr 4, 2018

STM32 Based soldering station for JBC cartridges, 9-24 VDC and USB-PD power

C 1,005 126 Updated Feb 4, 2026

gs_usb compatible firmware for candleLight, cantact and canable

C 856 367 Updated Jan 30, 2026

Lightweight USB device Stack for STM32 microcontrollers

C 806 177 Updated Oct 6, 2025

Automated integer hash function discovery

C 750 35 Updated Mar 1, 2024

Adds support for Telegram to Pidgin, Adium, Finch and other Libpurple based messengers.

C 737 79 Updated Jun 29, 2023

akvcam, virtual camera for Linux

C 675 94 Updated Sep 13, 2025

BNF wrangling and railroad diagrams

C 625 32 Updated Dec 12, 2025

Tiny, fast(ish), self-contained, fully loaded printf, sprinf etc. implementation; particularly useful in embedded systems.

C 585 63 Updated Dec 10, 2025

ext2/ext3/ext4 filesystem library for microcontrollers

C 566 157 Updated Mar 22, 2024

A TS100 USB-PD replacement PCB.

C 516 46 Updated Jan 9, 2022

🤖 XCAN firmware for CANtact ( CANable ) or any other similar boards.

C 415 229 Updated Jul 28, 2022

User space PTP stack for the GNU/Linux operating system.

C 357 209 Updated Oct 24, 2025

👽 XCAN PRO/PRO FD/FD USB2CAN firmware implementation for cheap STM32F4 hardware

C 327 184 Updated Mar 11, 2022
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