| clibs/uv | Cross-platform asychronous I/O | Unlicensed |
| clibs/leveldb | LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values | Unlicensed |
| clibs/ck | Concurrency primitives, safe memory reclamation mechanisms and non-blocking data structures designed to aid in the research, design and implementation of high performance concurrent systems. | Unlicensed |
| beltex/libsmc | Apple System Management Controller (SMC) API | GPLv2.0 |
| brendanashworth/r3 | high-performance path dispatching library for the web | MIT |
| qute/qute | AST generation library | Unlicensed |
| clibs/sophia | modern embeddable key-value database | MIT |
| daddinuz/option | Mimic Rust's Option type | MIT |
| jwerle/libnanoresource | A C99 library for creating tiny async resources. | MIT |
| jwerle/libram | A C99 library for creating random access memory interfaces. | Unlicensed |
| jwerle/libras | A C99 library for creating random access storage interfaces. | Unlicensed |
| jwerle/libalru | libalru is a library for creating really fast numeric based LRU caches that leverage an optimized CRC-16-CCITT ported over from @mafintosh's array-lru. | Unlicensed |
| andrerenaud/pdfgen | A minimalistic C99 library for creating PDF document. | UNLICENSE |