libcbor

{
  "aliases": [],
  "alternatives": [
    "tinycbor",
    "qcbor",
    "cbor-c"
  ],
  "build_dependencies": [
    "cmake"
  ],
  "categories": [
    "library",
    "serialization",
    "parser"
  ],
  "caveats": null,
  "conflicts_with": [],
  "dependencies": [],
  "deprecated": 0,
  "deprecation_reason": null,
  "desc": "CBOR protocol implementation for C and others",
  "disable_reason": null,
  "disabled": 0,
  "enrichment_fetched_at": "2026-06-20T23:40:52+00:00",
  "first_seen": "2026-06-20T23:34:18+00:00",
  "full_name": "libcbor",
  "github_default_branch": "master",
  "github_last_commit_at": "2026-04-26T22:50:15Z",
  "github_readme_excerpt": "# [libcbor](https://github.com/PJK/libcbor)\n\n[![CircleCI](https://circleci.com/gh/PJK/libcbor/tree/master.svg?style=svg)](https://circleci.com/gh/PJK/libcbor/tree/master)\n[![Documentation Status](https://readthedocs.org/projects/libcbor/badge/?version=latest)](https://readthedocs.org/projects/libcbor/?badge=latest)\n[![latest packaged version(s)](https://repology.org/badge/latest-versions/libcbor.svg)](https://repology.org/project/libcbor/versions)\n[![codecov](https://codecov.io/gh/PJK/libcbor/branch/master/graph/badge.svg)](https://codecov.io/gh/PJK/libcbor)\n\n**libcbor** is a C library for parsing and generating [CBOR](https://cbor.io/), the general-purpose schema-less binary data format.\n\n## Main features\n\n- Complete CBOR [IETF RFC 8949 (STD 94)](https://www.rfc-editor.org/info/std94) specification conformance (previously known as [RFC 7049](https://www.rfc-editor.org/info/rfc7049))\n- Supports CBOR Sequences ([RFC 8742](https://datatracker.ietf.org/doc/html/rfc8742))\n- Robust platform-independent C99 implementation, tested on\n  - Linux, OS X, Windows, BSD\n  - x86(_64), arm(64), mips(el), riscv64\n- Layered architecture offers both control and convenience\n- Flexible memory management\n- No shared global state - threading friendly\n- Proper handling of UTF-8\n- Full support for streams \u0026 incremental processing\n- Extensive documentation and test suite\n- No runtime dependencies, small footprint\n\n## References\n\nlibcbor is most prominently used in:\n\n- Yubico\u0027s [libfido2](https://developers.yubico.com/libfido2/) 2FA security key implementation\n- Amazon\u0027s [AWS C SDK](https://github.com/awslabs/aws-c-common)\n- Gnome [fwdup](https://github.com/fwupd/fwupd/blob/main/meson.build#L339)\n- Alibaba\u0027s [Inclavare librats](https://github.com/inclavare-containers/librats)\n- [QEMU](https://wiki.qemu.org/ChangeLog/9.2)\n- [ITK](https://docs.itk.org/projects/wasm/en/latest/introduction/parts.html)\n\nIt found its way into many open source and proprietary projects. If you run among others [OpenS",
  "github_repo": "PJK/libcbor",
  "github_stars": 401,
  "github_topics": [
    "c",
    "c-plus-plus",
    "c99",
    "cbor",
    "serialization"
  ],
  "homepage": "https://github.com/PJK/libcbor",
  "homepage_og_description": null,
  "homepage_og_image": null,
  "homepage_title": null,
  "installs_30d": 7638,
  "installs_365d": 108411,
  "installs_90d": 31119,
  "keg_only": 0,
  "keg_only_reason": null,
  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "MIT",
  "llm_generated_at": "2026-06-20T23:44:50+00:00",
  "llm_model": "claude-haiku-4-5",
  "name": "libcbor",
  "oldnames": [],
  "one_liner": "C library for parsing and generating CBOR (Concise Binary Object Representation) binary data format per RFC 8949.",
  "optional_dependencies": [],
  "rank_30d": 433,
  "rank_365d": 393,
  "rank_90d": 386,
  "raw_hash": "04e1ef6d4ae2dcfd",
  "recommended_dependencies": [],
  "revision": 0,
  "ruby_source_path": "Formula/lib/libcbor.rb",
  "tap": "homebrew/core",
  "test_dependencies": [],
  "uses_from_macos": [],
  "version_head": null,
  "version_stable": "0.14.0",
  "versioned_formulae": [],
  "why_use_this": "Drop-in dependency for C/C++ projects needing CBOR serialization without external runtime deps; commonly used in cryptographic tooling like libfido2 for secure authentication. RFC 8949 compliant, thread-safe, portable across Linux/macOS/Windows/BSD, and handles UTF-8 and streams correctly."
}