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Top 23 C Arm Projects
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AppSignal
Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
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rt-thread
RT-Thread is an open source IoT Real-Time Operating System (RTOS). https://rt-thread.github.io/rt-thread/
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Unicorn Engine
Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)
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capstone
Capstone disassembly/disassembler framework for ARM, ARM64 (ARMv8), Alpha, BPF, Ethereum VM, HPPA, LoongArch, M68K, M680X, Mips, MOS65XX, PPC, RISC-V(rv32G/rv64G), SH, Sparc, SystemZ, TMS320C64X, TriCore, Webassembly, XCore and X86.
Project mention: Capstone – lightweight multi-platform, multi-architecture disassembly framework | news.ycombinator.com | 2026-06-02 -
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SaaSHub
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CRoaring
Roaring bitmaps in C (and C++), with SIMD (AVX2, AVX-512 and NEON) optimizations: used by Apache Doris, ClickHouse, Alibaba Tair, Redpanda, YDB and StarRocks
The nature of the problem is this: Memory gets allocated for some type of structure. In my case, it's a data structure containing a roaring bitmap, which is an implementation of bitmaps that are highly optimized and great for doing set-based calculations (AND/OR etc).
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modern-embedded-programming-course
Companion repository to the "Modern Embedded Systems Programming" video course.
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qpc
QP/C Real-Time Event Framework/RTOS implements event-driven Active Object (Actor) model combined with Hierarchical State Machines. Specifically designed for embedded systems (e.g., ARM Cortex-M MCUs).
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Not familiar with Rockchip. Plenty of searches come up with cases of people incorporating ffmpeg into Rockchip projects. I still see the license files and headers. What is different with this DMCA takedown?
https://github.com/nyanmisaka/ffmpeg-rockchip
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SaaSHub
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C Arm discussion
C Arm related posts
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SIMDe
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Two computers, one monitor, zero fiddling – Alex Plescan
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The Orange Pi 6 Plus
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Analyzing Akamai BMP 4.1.3 - Part 1 - For Noobs Learn
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Is it feasible to build an ESP32 emulator in JavaScript?
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Ask HN: What are you working on? (Dec 2025)
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DiscoBSD
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A note from our sponsor - SaaSHub
www.saashub.com | 5 Oct 2026
Index
What are some of the best open-source Arm projects in C? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | raspberry-pi-os | 13,937 |
| 2 | rt-thread | 12,255 |
| 3 | Unicorn Engine | 9,397 |
| 4 | capstone | 9,046 |
| 5 | deskhop | 7,918 |
| 6 | stlink | 5,180 |
| 7 | bare-metal-programming-guide | 4,919 |
| 8 | box86 | 3,810 |
| 9 | simde | 3,115 |
| 10 | DAPLink | 2,812 |
| 11 | android-inline-hook | 2,407 |
| 12 | picolm | 2,200 |
| 13 | cpufetch | 2,150 |
| 14 | CRoaring | 1,890 |
| 15 | modern-embedded-programming-course | 1,481 |
| 16 | shecc | 1,398 |
| 17 | qpc | 1,378 |
| 18 | ffmpeg-rockchip | 1,294 |
| 19 | amacc | 1,059 |
| 20 | uefi-ntfs | 1,007 |
| 21 | baremetal-arm | 847 |
| 22 | f9-kernel | 767 |
| 23 | EfiFs | 640 |
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www.appsignal.com