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Top 23 C Portable Projects
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AppSignal
AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
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Project mention: fastjson 0.3.0: A Faster Drop-In ext/json for PHP, Backed by yyjson | dev.to | 2026-05-20
fastjson is option three. It's a native PHP extension that wraps yyjson 0.12.0 (MIT, ~6K LOC of focused C) behind a namespaced API that mirrors ext/json's contract. PHP 8.3 minimum; 8.4 and 8.5 supported; coexists with ext/json.
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bdwgc
The Boehm-Demers-Weiser conservative C/C++ Garbage Collector (bdwgc, also known as bdw-gc, boehm-gc, libgc)
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Project mention: Mlibc: A fukk-featured portable C standard library | news.ycombinator.com | 2026-06-26
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SaaSHub
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libplctag
This C library provides a portable and simple API for accessing Allen-Bradley and Modbus PLC data over Ethernet.
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Project mention: Portable Snippets: Collection of miscellaneous portable C snippets | news.ycombinator.com | 2026-05-06
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wolfBoot
wolfBoot is a portable, OS-agnostic, secure bootloader for microcontrollers, supporting firmware authentication and firmware update mechanisms.
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nbsdgames
A package of 21 new, improved, text-based games. Some are entirely original ideas. Best and lightest! Years of free, fun and endless brain exercise for everyone.
Project mention: Show HN: NBSDgames – 21 new, improved, original text games for Unix, DOS, Plan9 | news.ycombinator.com | 2026-06-10 -
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Zenroom
Secure execution VM executing human-like language (no-code) to operate on data and advanced cryptographic operations.
Project mention: Zenroom – No-code cryptographic virtual machine | news.ycombinator.com | 2025-12-02 -
QCBOR
Comprehensive, powerful, commercial-quality CBOR encoder/ decoder that is still suited for small devices.
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netbsd-curses
libcurses and dependencies taken from netbsd and brought into a portable shape (at least to musl or glibc)
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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 Portable discussion
C Portable related posts
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Mlibc: A fukk-featured portable C standard library
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fastjson 0.3.0: A Faster Drop-In ext/json for PHP, Backed by yyjson
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Virtualizing Nvidia HGX B200 GPUs with Open Source
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Show HN: Uprintf a universal stb-style printf implementation for C (no OS)
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Notes on Paul Graham's ANSI Common Lisp Book
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Jank development update – Moving to LLVM IR
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Mlibc: A C Standard Library
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A note from our sponsor - SaaSHub
www.saashub.com | 7 Oct 2026
Index
What are some of the best open-source Portable projects in C? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | flecs | 8,718 |
| 2 | gravity | 4,573 |
| 3 | yyjson | 3,895 |
| 4 | bdwgc | 3,543 |
| 5 | soloud | 2,144 |
| 6 | zip | 1,610 |
| 7 | mlibc | 1,141 |
| 8 | tulipcc | 968 |
| 9 | libplctag | 903 |
| 10 | MQTT-C | 895 |
| 11 | portable-snippets | 762 |
| 12 | mps | 622 |
| 13 | kirc | 546 |
| 14 | FastLZ | 543 |
| 15 | wolfBoot | 537 |
| 16 | wolfssh | 498 |
| 17 | signify | 319 |
| 18 | nbsdgames | 316 |
| 19 | errorlookup | 316 |
| 20 | Zenroom | 251 |
| 21 | QCBOR | 240 |
| 22 | sha-2 | 201 |
| 23 | netbsd-curses | 167 |
Sponsored
AppSignal knows why the f*#k it crashed.
Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
www.appsignal.com