YAML Libraries

YAML data serialization libraries for most modern programming languages.

Uses the YAML Test Suite
Available in the YAML Playground
Supported by The YAML Company

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Ada

• AdaYaml

  ---

  Experimental YAML 1.3 implementation in Ada

C/C++

• libyaml

  ---

  "C" Fast YAML 1.1

• libfyaml

  ---

  "C" YAML 1.2 processor

• rapidyaml

  ---

  Fast C++ YAML parser and emitter

• yaml-cpp

  ---

  C++ YAML 1.2 implementation

• libcyaml

  ---

  YAML de/serialization of C data (using libyaml)

Clojure

• clj-yaml

  ---

  YAML encoding and decoding for Clojure

• YAMLStar

  ---

  YAML 1.2 loader

• YAMLScript

  ---

  YAMLScript YAML loader

Common Lisp

• cl-yaml

  ---

  YAML parser and emitter built on libyaml

Crystal

• YAML

  ---

  YAML 1.1 from the standard library

• YAMLScript

  ---

  YAMLScript YAML loader

C#/.NET

• YamlDotNet

  ---

  YAML 1.1/(1.2) library + serialization

• yaml-net

  ---

  YAML 1.1 library

• Legivel

  ---

  F# YAML 1.2 parser

• YAMLStar

  ---

  YAML 1.2 loader

• YAMLScript

  ---

  YAMLScript YAML loader

D

• D-YAML

  ---

  YAML 1.1 library w/ official community support

Dart

• yaml

  ---

  YAML package for Dart

Delphi

• Neslib.Yaml

  ---

  YAML 1.1 Delphi binding to libyaml

• Yaml.Json.Parser

  ---

  YAML 1.1/1.2 and JSON pure Object Pascal parser

• YAMLStar

  ---

  YAML 1.2 loader

Elixir

• yaml-elixir

  ---

  YAML support for the Elixir language

Erlang

• yamerl

  ---

  YAML support for the Erlang language

• erl-yaml

  ---

  YAML support for Erlang (based on libyaml)

Fortran

• yaFyaml

  ---

  YAML 1.2 implementation in pure Fortran

• YAMLStar

  ---

  YAML 1.2 loader

Go

• Go-yaml

  ---

  YAML support for the Go language

• Go-gypsy

  ---

  Simplified YAML parser written in Go

• goccy/go-yaml

  ---

  YAML 1.2 implementation in pure Go

• YAMLStar

  ---

  YAML 1.2 loader

• YAMLScript

  ---

  YAMLScript YAML loader

Groovy

• YamlSlurper

  ---

  Built-in YAML parser (Groovy 3+)

Haskell

• HsYAML

  ---

  YAML 1.2 implementation in pure Haskell

• YamlReference

  ---

  Haskell 1.2 reference parser

• yaml

  ---

  YAML 1.1 Haskell framework (based on libyaml)

• YAMLScript

  ---

  YAMLScript YAML loader

Java

• SnakeYAML Engine

  ---

  Java 8+ / YAML 1.2

• SnakeYAML

  ---

  Java 5 / YAML 1.1

• YamlBeans

  ---

  To/from JavaBeans. YAML 1.0/1.1

• eo-yaml

  ---

  YAML 1.2 for Java 8. Packaged as a Module (Java 9+)

• Chronicle-Wire

  ---

  Java Implementation

• YAMLStar

  ---

  YAML 1.2 loader

• YAMLScript

  ---

  YAMLScript YAML loader

JavaScript

• yaml

  ---

  JavaScript parser/stringifier (YAML 1.2, 1.1)

• js-yaml

  ---

  Native PyYAML port to JavaScript

• YAMLStar

  ---

  YAML 1.2 loader

• YAMLScript

  ---

  YAMLScript YAML loader

Julia

• YAMLScript

  ---

  YAMLScript YAML loader

Kotlin

• kaml

  ---

  YAML 1.2 support for kotlinx.serialization

• yamlkt

  ---

  Multiplatform YAML parser for kotlinx.serialization

• Hoplite

  ---

  Kotlin config library with YAML support

Lua

• LuaYAML

  ---

  Lua binding for libyaml

• YAMLScript

  ---

  YAMLScript YAML loader

MATLAB

• jsonlab

  ---

  YAML reader/writer for MATLAB and GNU Octave

Nim

• NimYAML

  ---

  YAML 1.2 implementation in pure Nim

OCaml

• ocaml-yaml

  ---

  YAML 1.1/1.2 via libyaml bindings

• ocaml-syck

  ---

  YAML 1.0 via syck bindings

Objective-C

• YAML.framework

  ---

  YAML support based on libyaml

• YAML4ObjC

  ---

  LibYAML wrapper with YPath query support

Perl

• YAML::XS

  ---

  XS binding to libyaml

• YAML::PP

  ---

  A pure Perl YAML 1.2/1.1 processor

• YAML::Syck

  ---

  Binding to libsyck

• YAML::Tiny

  ---

  A small YAML subset module

• YAML

  ---

  Pure Perl YAML 1.0 Module

• YAMLStar

  ---

  YAML 1.2 loader

• YAMLScript

  ---

  YAMLScript YAML loader

PHP

• The Yaml Component

  ---

  Symfony Yaml Component (YAML 1.2)

• php-yaml

  ---

  libyaml bindings (YAML 1.1)

• syck

  ---

  syck bindings (YAML 1.0)

• spyc

  ---

  yaml loader/dumper (YAML 1.?)

• YAMLScript

  ---

  YAMLScript YAML loader

PowerShell

• :simple-powershell:{ .lg .middle } powershell-yaml

  ---

  PowerShell CmdLets for YAML manipulation

Python

• PyYAML

  ---

  YAML 1.1, pure Python and libyaml binding

• ruamel.yaml

  ---

  YAML 1.2, update of PyYAML; comments round-trip

• strictyaml

  ---

  Restricted YAML subset

• YAMLStar

  ---

  YAML 1.2 loader

• YAMLScript

  ---

  YAMLScript YAML loader

R

• R YAML

  ---

  libyaml wrapper

Raku

• YAMLish

  ---

  Port of YAMLish to Raku

• YAML::Parser::LibYAML

  ---

  LibYAML wrapper

• YAMLScript

  ---

  YAMLScript YAML loader

Scala

• circe-yaml

  ---

  YAML parser for circe using SnakeYAML

Scheme

• guile-libyaml

  ---

  YAML module for Guile using libyaml

Ruby

• psych

  ---

  libyaml wrapper (in Ruby core for 1.9.2)

• YAMLScript

  ---

  YAMLScript YAML loader

Rust

• yaml-serde

  ---

  YAML framework for the Rust language

• yaml-rust2

  ---

  YAML 1.2 implementation in pure Rust (actively maintained)

• saphyr

  ---

  Modern Rust crates for parsing YAML

• YAMLStar

  ---

  YAML 1.2 loader

• YAMLScript

  ---

  YAMLScript YAML loader

Shell

• parse_yaml

  ---

  Simple YAML parser for Bash using sed and awk

• shyaml

  ---

  Read YAML files - jq style

Swift

• Yams

  ---

  libyaml wrapper

Tcl

• yaml

  ---

  YAML processing with huddle support

Typst

• yaml

  ---

  YAML support built into Typst scripting language

TypeScript

• yaml

  ---

  JavaScript/TypeScript YAML parser (YAML 1.2, 1.1)

• js-yaml

  ---

  YAML parser and serializer

• yaml-thom

  ---

  Experimental YAML 1.2 reference implementation

V

• yaml

  ---

  Strictly parse and format YAML data

Vim

• yamlvim

  ---

  YAML dumper/emitter in pure vimscript

Zig

• zig-yaml

  ---

  YAML 1.2 parser for Zig

• ymlz

  ---

  Small and convenient YAML parser for Zig