# Install libfyaml with Homebrew, apk, dnf, MacPorts, Nix, pacman, apt, zypper Fully feature complete YAML parser and emitter. Version 0.9.6 via Homebrew; verified from local package data. Also installable with debian: sudo apt install libfyaml-dev. ## Install ```sh sudo av install brew:libfyaml ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install libfyaml ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install libfyaml ``` Evidence: MacPorts ports tree: devel/libfyaml/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - apk (92%): ```sh sudo apk add libfyaml ``` Evidence: Alpine Linux edge package indexes: libfyaml from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz - dnf (92%): ```sh sudo dnf install libfyaml ``` Evidence: Fedora Rawhide package metadata: libfyaml from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst - Nix (92%): ```sh nix profile install nixpkgs#libfyaml ``` Evidence: nixpkgs package indexes: pkgs/by-name/li/libfyaml/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - pacman (92%): ```sh sudo pacman -S libfyaml ``` Evidence: Arch Linux sync databases: libfyaml from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz - Debian apt (92%): ```sh sudo apt install libfyaml-dev ``` Evidence: Debian stable package indexes: libfyaml-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - zypper (92%): ```sh sudo zypper install libfyaml-devel ``` Evidence: openSUSE Tumbleweed package metadata: libfyaml-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst ## Package facts - **Package key:** brew:libfyaml - **Package manager:** Homebrew - **Version:** 0.9.6 - **Source summary:** Fully feature complete YAML parser and emitter - **Homepage:** - **Repository:** - **Generated:** 2026-08-03T19:37:03+00:00 ## Executables - fy-compose (alias) - fy-dump (alias) - fy-filter (alias) - fy-join (alias) - fy-testsuite (alias) - fy-tool (alias) - fy-ypath (alias) ## Install behavior - Bottle: not available ## Freshness - Page generated: 2026-08-03 - Package-manager version: 0.9.6 ## Project history and usage libfyaml is Pantelis Antoniou’s MIT-licensed C library and tool suite for YAML 1.2 and JSON parsing and emitting, emphasizing zero-copy parsing, document and event APIs, diagnostics, and YAML test-suite coverage. ### Project history GitHub repository metadata records pantoniou/libfyaml creation on 2019-09-16, and the project documentation copyright spans 2019-2026. The README describes the library as a high-performance YAML 1.2 and JSON parser/emitter with zero-copy operation, full document and event APIs, and no artificial key or document size limits. GitHub release metadata records v0.9 on 2023-09-25, v0.9.6 on 2026-03-15, and a 1.0.0-alpha series beginning on 2026-03-16. The alpha series added generics, reflection/meta-type support, Python binding work, parse caching, optimized generic emission, and wider binary packaging. ### Adoption history libfyaml’s adoption is narrower than older C YAML libraries, but package records in the input show it in Homebrew, Debian, Ubuntu, Fedora, Arch, MacPorts, Nix, Alpine, and openSUSE. It appeals to projects that need a modern C YAML parser with event, document-tree, path, JSON, and command-line tooling in one package. ### How it is used The package ships utilities such as fy-tool, fy-dump, fy-compose, fy-filter, fy-join, fy-ypath, and fy-testsuite. Developers can link it through CMake or pkg-config and use core, generic, or reflection APIs depending on whether they need streaming events, document manipulation, schema-light values, or typed C structure serialization. ### Why package nerds care libfyaml matters to package maintainers because YAML parsing is deceptively hard, security-sensitive, and specification-heavy. A compact C implementation with test-suite emphasis, JSON interop, command-line tools, and optional Python bindings gives distributions another choice besides older libyaml-style stacks. ### Timeline - 2019-09-16: GitHub repository metadata records creation of pantoniou/libfyaml. - 2023-09-25: GitHub release metadata records v0.9. - 2026-03-15: GitHub release metadata records v0.9.6. - 2026-03-16: GitHub release metadata records v1.0.0-alpha1. - 2026-05-28: GitHub release metadata records v1.0.0-alpha7. ### Related projects - The YAML test suite is part of libfyaml’s correctness story. - The Python binding in python-libfyaml bridges the C generic runtime into Python workflows. - libyaml is the older C YAML library against which newer C YAML parsers are often compared. ### Sources - - - - ## Security Notes library-like package without higher-risk signals. - **Geiger risk:** green / low - library-like package without higher-risk signals ## Other Package-Manager Records - Debian apt - libfyaml-dev - 0.8-1+b2: normalized package name match | Debian stable package indexes: libfyaml-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Fully feature complete YAML parser and emitter (headers) | https://github.com/pantoniou/libfyaml - Debian apt - libfyaml-utils - 0.8-1+b2: normalized package name match | Debian stable package indexes: libfyaml-utils from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Fully feature complete YAML parser and emitter (CLI tools) | https://github.com/pantoniou/libfyaml - Debian apt - libfyaml0 - 0.8-1+b2: normalized package name match | Debian stable package indexes: libfyaml0 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Fully feature complete YAML parser and emitter (library) | https://github.com/pantoniou/libfyaml - Nix - libfyaml: normalized package name match | nixpkgs package indexes: pkgs/by-name/li/libfyaml/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - libfyaml-dev - 0.8-1build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libfyaml-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Fully feature complete YAML parser and emitter (headers) | https://github.com/pantoniou/libfyaml - Ubuntu apt - libfyaml-utils - 0.8-1build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libfyaml-utils from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Fully feature complete YAML parser and emitter (CLI tools) | https://github.com/pantoniou/libfyaml - Ubuntu apt - libfyaml0 - 0.8-1build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libfyaml0 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Fully feature complete YAML parser and emitter (library) | https://github.com/pantoniou/libfyaml - apk - libfyaml - 0.9.6-r1: normalized package name match | Alpine Linux edge package indexes: libfyaml from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Fully feature complete YAML parser and emitter | https://github.com/pantoniou/libfyaml - apk - libfyaml-dev - 0.9.6-r1: normalized package name match | Alpine Linux edge package indexes: libfyaml-dev from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Fully feature complete YAML parser and emitter (development files) | https://github.com/pantoniou/libfyaml - apk - libfyaml-doc - 0.9.6-r1: normalized package name match | Alpine Linux edge package indexes: libfyaml-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Fully feature complete YAML parser and emitter (documentation) | https://github.com/pantoniou/libfyaml - dnf - fyaml-utils - 0.8-10.fc45: normalized package name match | Fedora Rawhide package metadata: fyaml-utils from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Utility tools for libfyaml | https://github.com/pantoniou/libfyaml - dnf - libfyaml - 0.8-10.fc45: normalized package name match | Fedora Rawhide package metadata: libfyaml from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Complete YAML parser and emitter | https://github.com/pantoniou/libfyaml - dnf - libfyaml-devel - 0.8-10.fc45: normalized package name match | Fedora Rawhide package metadata: libfyaml-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Complete YAML parser and emitter | https://github.com/pantoniou/libfyaml - pacman - libfyaml - 0.9.6-2: normalized package name match | Arch Linux sync databases: libfyaml from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | Fully feature complete YAML parser and emitter | https://pantoniou.github.io/libfyaml/ - zypper - libfyaml-devel - 0.9.5-1.4: normalized package name match | openSUSE Tumbleweed package metadata: libfyaml-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Development files for libfyaml | https://github.com/pantoniou/libfyaml - zypper - libfyaml-fy-tool - 0.9.5-1.4: normalized package name match | openSUSE Tumbleweed package metadata: libfyaml-fy-tool from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Command line tools for libfyaml | https://github.com/pantoniou/libfyaml ## Combined YAML source View the package source record on GitHub. [combined/libfyaml.yml](https://github.com/mxcl/pkgdb/blob/main/combined/libfyaml.yml) ## Sources - pkg.so package database - Geiger risk classifier - curated package history - pkgdb category and tag curation - external package-manager database matches - cross-ecosystem install command graph