| clibs/rle | Run-length encoding | MIT |
| clibs/snappy | Snappy codec | MIT |
| littlstar/uri.c | URI Component encoder/decoder | Unlicensed |
| mbucc/chtmlescape | HTML escape the characters '<', '>', '&', and '"' | ISC |
| littlstar/b64.c | Base64 encode/decode | Unlicensed |
| jwerle/libutf8 | A whatwg compliant UTF8 encoding and decoding library | MIT |
| willemt/bitstream | Let me write out bits to a stream | BSD |
| willemt/fe | Flip the endianess of integers | MIT |
| mikepb/endian.h | Portable endian conversion functions for C | PD |
| lemire/simdcomp | A simple C library for compressing lists of integers | BSD-3-Clause |
| pepaslabs/hexify.c | Convert binary data into a hexidecimal string | MIT |
| aperezdc/ulid-c | Create and encode ULIDs, Universal Lexicographically-sortable Identifiers. | MIT |
| jwerle/libsleepfile | A C99 library for interacting with SLEEP file storage. | Unlicensed |