| clibs/logfmt | fast logfmt parser. | MIT |
| clibs/jsmn | JSON parser. | MIT |
| orangeduck/mpc | Parser Combinator Library for C | BSD |
| willemt/torrent-reader | Read torrent files | BSD |
| mbucc/js0n | Parse JSON. | Public domain |
| jb55/field-range-parser.c | Parse field ranges (like cut) | MIT |
| jb55/querystring.c | Querystring parser | Unlicensed |
| jb55/is_number.c | Test a string to see if it is a number | MIT |
| brendanashworth/http-parser | http request/response parser for c | MIT |
| h2non/semver.c | Semver 2.0 parser and render written in ANSI C | MIT |
| kgabis/parson | Lightweight JSON library written in C. | MIT |
| rikvdh/matching | String-based parser based on matching strings for interpreting and handling string-based interfaces. | MIT |
| likle/cargs | A lightweight cross-platform getopt alternative that works on Linux, Windows and macOS. Command line argument parser library for C/C++. Can be used to parse argv and argc parameters. | Unlicensed |
