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Top 23 C programming-language Projects
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Lua
Lua is a powerful, efficient, lightweight, embeddable scripting language. It supports procedural programming, object-oriented programming, functional programming, data-driven programming, and data description.
Seems similar in impact to https://nvd.nist.gov/vuln/detail/cve-2021-32626, I wonder why this has a CVE 10.
This code also looks generally fixed in Lua5.4, https://github.com/lua/lua/blame/9ea06e61f20ae34974226074fc6.... Valkey and Redis really need to move to Lua that isn't so old.
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> Chromium: Parsers for PNG, JSON, and web fonts have been replaced with memory-safe implementations in Rust, making it easier for Chromium engineers to deal with data from the web
I find this surprising, isn't Wuffs[1] (also made by Google) an even better fit for this particular use-case? (It has compile-time spatial memory safety, where Rust has compile-time temporal safety but runtime spatial safety, with bound checking).
Obviously for general-purpose system programming, Rust is a no-brainer and I'm happy to see Google pursuing their rustification of Android.
[1]: https://github.com/google/wuffs
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checkedc
Checked C is an extension to C that lets programmers write C code with bounds checking and improved type-safety. The goal is to let people easily make their existing C code type-safe and eliminate entire classes of errors.
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Project mention: Umka: A statically typed embeddable scripting language | news.ycombinator.com | 2026-05-06
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Inform 7's source code is published under the Artistic License 2.0 these days: https://github.com/ganelson/inform/blob/master/LICENSE
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ring
A simple, lightweight, flexible, embeddable, portable and multi-paradigm dynamic programming language for developing applications, tools, and domain-specific languages (by ring-lang)
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Project mention: Recursive macros in C, demystified (once the ugly crying stops) | news.ycombinator.com | 2025-11-05
The CPP does allow quite advanced metaprogramming, it's just so obtuse to use and requires insane hacks so almost nobody does. See one of my favorite projects https://github.com/hirrolot/metalang99
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wax
A tiny programming language that transpiles to C, C++, Java, TypeScript, Python, C#, Swift, Lua and WebAssembly 🚀
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Project mention: Show HN: I used AI to recreate a $4000 piece of audio hardware as a plugin | news.ycombinator.com | 2026-01-04
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 programming-language discussion
C programming-language related posts
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Arc v0.0.2-alpha – Release Notes
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Arc v0.0.1-alpha – A Lightweight C-Based Programming Language
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include-tidy: A Tool to Enforce Include-What-You-Use
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A programming language. Anywhere, anytime, by anyone
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Mino: Embeddable Clojure-inspired Lisp in portable C99
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Dnsmasq-Discuss: Security – Important
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Umka: A statically typed embeddable scripting language
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A note from our sponsor - SaaSHub
www.saashub.com | 15 Jun 2026
Index
What are some of the best open-source programming-language projects in C? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Lua | 10,050 |
| 2 | wuffs | 4,764 |
| 3 | gravity | 4,533 |
| 4 | emojicode | 3,404 |
| 5 | checkedc | 3,260 |
| 6 | CreepyCodeCollection | 2,397 |
| 7 | nature | 2,244 |
| 8 | pocketpy | 2,073 |
| 9 | umka-lang | 2,057 |
| 10 | core | 1,802 |
| 11 | inform | 1,601 |
| 12 | pocketlang | 1,545 |
| 13 | ngs | 1,522 |
| 14 | ring | 1,450 |
| 15 | ravi | 1,249 |
| 16 | daScript | 1,131 |
| 17 | metalang99 | 1,069 |
| 18 | holyc-lang | 968 |
| 19 | wax | 845 |
| 20 | c2compiler | 831 |
| 21 | felix | 817 |
| 22 | tcl | 806 |
| 23 | cmajor | 730 |
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