pkg.soopen package index

brew / rank 1278

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 commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install libfyaml

local Homebrew formula metadata

MacPortsverified · 94%
sudo port install libfyaml

MacPorts ports tree · devel/libfyaml/Portfile · source: api.github.com

Linux

Alpine Linux apkverified · 92%
sudo apk add libfyaml

Alpine Linux edge package indexes · libfyaml · source: dl-cdn.alpinelinux.org

Fedora dnfverified · 92%
sudo dnf install libfyaml

Fedora Rawhide package metadata · libfyaml · source: dl.fedoraproject.org

Nixverified · 92%
nix profile install nixpkgs#libfyaml

nixpkgs package indexes · pkgs/by-name/li/libfyaml/package.nix · source: api.github.com

Arch Linux pacmanverified · 92%
sudo pacman -S libfyaml

Arch Linux sync databases · libfyaml · source: geo.mirror.pkgbuild.com

Debian aptverified · 92%
sudo apt install libfyaml-dev

Debian stable package indexes · libfyaml-dev · source: deb.debian.org

openSUSE zypperverified · 92%
sudo zypper install libfyaml-devel

openSUSE Tumbleweed package metadata · libfyaml-devel · source: download.opensuse.org

overview

Package summary

Fully feature complete YAML parser and emitter

Commands and aliases

  • fy-compose
  • fy-dump
  • fy-filter
  • fy-join
  • fy-testsuite
  • fy-tool
  • fy-ypath

history

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.

security posture

Risk level: green

library-like package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

  • library-like package without higher-risk signals

Signals

  • metadata:library-like

Install behavior

  • No Homebrew bottle metadata was recorded.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

CommandKindExposureNote
fy-composeexecutableindexed executableDiscovered from the local executable index.
fy-dumpexecutableindexed executableDiscovered from the local executable index.
fy-filterexecutableindexed executableDiscovered from the local executable index.
fy-joinexecutableindexed executableDiscovered from the local executable index.
fy-testsuiteexecutableindexed executableDiscovered from the local executable index.
fy-toolexecutableindexed executableDiscovered from the local executable index.
fy-ypathexecutableindexed executableDiscovered from the local executable index.

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-03
manager version0.9.6
manager updated
local dataunknown
upstreamnot available
latest detectednot detected
  • okNo freshness warnings were generated.

install metadata

Package metadata

Package keybrew:libfyaml
Version0.9.6
Package managerHomebrew
Homepagehttps://github.com/pantoniou/libfyaml
Repositoryhttps://github.com/pantoniou/libfyaml
Bottlenot recorded
Servicenone declared

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

libfyaml-dev 0.8-1+b2

Fully feature complete YAML parser and emitter (headers)

https://github.com/pantoniou/libfyaml

sudo apt install libfyaml-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: libfyaml
  • 1 dependencies
  • normalized package name match
  • Matched by: Libfyaml
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libfyaml-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libfyaml-utils 0.8-1+b2

Fully feature complete YAML parser and emitter (CLI tools)

https://github.com/pantoniou/libfyaml

sudo apt install libfyaml-utils
  • Section: devel
  • Architecture: amd64
  • Source Package: libfyaml
  • 2 dependencies
  • normalized package name match
  • Matched by: Libfyaml
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libfyaml-utils from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libfyaml0 0.8-1+b2

Fully feature complete YAML parser and emitter (library)

https://github.com/pantoniou/libfyaml

sudo apt install libfyaml0
  • Section: libs
  • Architecture: amd64
  • Source Package: libfyaml
  • 1 dependencies
  • normalized package name match
  • Matched by: Libfyaml
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libfyaml0 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

libfyaml

nix profile install nixpkgs#libfyaml
  • normalized package name match
  • Matched by: Libfyaml
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/li/libfyaml/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

libfyaml-dev 0.8-1build1

Fully feature complete YAML parser and emitter (headers)

https://github.com/pantoniou/libfyaml

sudo apt install libfyaml-dev
  • Section: universe/libdevel
  • Architecture: amd64
  • Source Package: libfyaml
  • 1 dependencies
  • normalized package name match
  • Matched by: Libfyaml
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libfyaml-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libfyaml-utils 0.8-1build1

Fully feature complete YAML parser and emitter (CLI tools)

https://github.com/pantoniou/libfyaml

sudo apt install libfyaml-utils
  • Section: universe/devel
  • Architecture: amd64
  • Source Package: libfyaml
  • 2 dependencies
  • normalized package name match
  • Matched by: Libfyaml
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libfyaml-utils from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libfyaml0 0.8-1build1

Fully feature complete YAML parser and emitter (library)

https://github.com/pantoniou/libfyaml

sudo apt install libfyaml0
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: libfyaml
  • 1 dependencies
  • normalized package name match
  • Matched by: Libfyaml
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libfyaml0 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
apk95%

libfyaml 0.9.6-r1

Fully feature complete YAML parser and emitter

https://github.com/pantoniou/libfyaml

sudo apk add libfyaml
  • License: MIT
  • Architecture: x86_64
  • Source Package: libfyaml
  • 1 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Libfyaml
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libfyaml from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
apk95%

libfyaml-dev 0.9.6-r1

Fully feature complete YAML parser and emitter (development files)

https://github.com/pantoniou/libfyaml

sudo apk add libfyaml-dev
  • License: MIT
  • Architecture: x86_64
  • Source Package: libfyaml
  • 1 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Libfyaml
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libfyaml-dev from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
apk95%

libfyaml-doc 0.9.6-r1

Fully feature complete YAML parser and emitter (documentation)

https://github.com/pantoniou/libfyaml

sudo apk add libfyaml-doc
  • License: MIT
  • Architecture: x86_64
  • Source Package: libfyaml
  • normalized package name match
  • Matched by: Libfyaml
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libfyaml-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
dnf95%

fyaml-utils 0.8-10.fc45

Utility tools for libfyaml

https://github.com/pantoniou/libfyaml

sudo dnf install fyaml-utils
  • License: MIT and GPL-2.0-only and BSD-2-Clause
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: libfyaml
  • 4 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Libfyaml
Fedora Rawhide package metadata · dl.fedoraproject.org · 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
dnf95%

libfyaml 0.8-10.fc45

Complete YAML parser and emitter

https://github.com/pantoniou/libfyaml

sudo dnf install libfyaml
  • License: MIT and GPL-2.0-only and BSD-2-Clause
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libfyaml
  • 2 dependencies
  • 3 provides
  • normalized package name match
  • Matched by: Libfyaml
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: libfyaml from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst
dnf95%

libfyaml-devel 0.8-10.fc45

Complete YAML parser and emitter

https://github.com/pantoniou/libfyaml

sudo dnf install libfyaml-devel
  • License: MIT and GPL-2.0-only and BSD-2-Clause
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libfyaml
  • 3 dependencies
  • 2 provides
  • normalized package name match
  • Matched by: Libfyaml
Fedora Rawhide package metadata · dl.fedoraproject.org · 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
pacman95%

libfyaml 0.9.6-2

Fully feature complete YAML parser and emitter

https://pantoniou.github.io/libfyaml/

sudo pacman -S libfyaml
  • License: MIT
  • Architecture: x86_64
  • 1 dependencies
  • normalized package name match
  • Matched by: Libfyaml
Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: libfyaml from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
zypper95%

libfyaml-devel 0.9.5-1.4

Development files for libfyaml

https://github.com/pantoniou/libfyaml

sudo zypper install libfyaml-devel
  • License: MIT
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: libfyaml
  • 2 dependencies
  • 2 provides
  • normalized package name match
  • Matched by: Libfyaml
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: libfyaml-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst
zypper95%

libfyaml-fy-tool 0.9.5-1.4

Command line tools for libfyaml

https://github.com/pantoniou/libfyaml

sudo zypper install libfyaml-fy-tool
  • License: MIT
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: libfyaml
  • 3 dependencies
  • 2 provides
  • normalized package name match
  • Matched by: Libfyaml
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: libfyaml-fy-tool from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Used sources

  • Geiger risk classifier
  • cross-ecosystem install command graph
  • curated package history
  • external package-manager database matches
  • pkg.so package database
  • pkgdb category and tag curation