Old

This is a list of unmaintained implementations, often for older TOML versions.

Only add things here if:

1. They've been unmaintained for several years.
2. There is a newer maintained implementation for the language.
3. See relatively little use in current applications (compared to the newer ones).

There is a bit of a vague heuristic to this, but generally the main list should only list implementations that are useful to use today. If a language only has an old TOML 0.4 implementation then that's better than no TOML implementation, but if there's a newer implementation than the old one is typically not very useful.

TOML 1.0

Language	Repo	Notes
C	https://github.com/cktan/tomlc99
Go	https://github.com/komkom/toml
JavaScript	https://github.com/LongTengDao/j-toml
JavaScript	https://github.com/huan231/toml-nodejs
Julia	https://github.com/JuliaLang/TOML.jl	included in Julia stdlib since 1.6
Zig	https://codeberg.org/Egoist/toml-zig

TOML 1.0-rc2

Language	Repo
Zig	https://github.com/jmuk/zig-toml

TOML 1.0-rc1

Language	Repo
JavaScript	https://github.com/iarna/iarna-toml
Pascal	https://github.com/genericptr/fpTOML

TOML 0.5

Language	Repo
C#	https://github.com/DanielArgent/Tomen
C#	https://github.com/paiden/Nett
C++	https://github.com/ToruNiina/Boost.toml
C++	https://github.com/skystrife/cpptoml
Elixir	https://github.com/bitwalker/toml-elixir
JavaScript	https://github.com/sgarciac/bombadil
JavaScript	https://www.npmjs.com/package/fast-toml
Python	https://github.com/alethiophile/qtoml
Python	https://github.com/uiri/toml
Ruby	https://github.com/pawandubey/troml
Rust	https://github.com/dtolnay/basic-toml
Wren	https://github.com/datatypevoid/wren-toml
Zig	https://github.com/aeronavery/zig-toml

TOML 0.4

Language	Repo
C	https://github.com/ajwans/libtoml
C#	https://github.com/azyobuzin/HyperTomlProcessor
C++	https://github.com/andrusha97/loltoml
C++	https://github.com/mayah/tinytoml
Common Lisp	https://github.com/sgarciac/sawyer
Erlang	https://github.com/dozzie/toml
Fortran	https://github.com/gregfi/f_tomlc99
Go	https://github.com/kezhuw/toml
Go	https://github.com/naoina/toml
Haskell	https://github.com/cies/htoml
Java	https://github.com/TheElectronWill/TOML-javalib
Java	https://github.com/mwanji/toml4j
JavaScript	https://github.com/jakwings/toml-j0.4
Lua	https://github.com/jonstoler/lua-toml
OCaml	https://github.com/mackwic/to.ml
PHP	https://github.com/betrixed/Toml-Pun8
PHP	https://github.com/leonelquinteros/php-toml
PHP	https://github.com/yosymfony/toml
Perl	https://github.com/karupanerura/TOML-Parser
Python	https://github.com/avakar/pytoml
Swift	https://github.com/jdfergason/swift-toml

TOML 0.2

Language	Repo
Go	https://github.com/achun/tom-toml
JavaScript	https://github.com/redhotvengeance/topl
Julia	https://github.com/pygy/TOML.jl
PHP	https://github.com/zidizei/toml-php
Racket	https://github.com/greghendershott/toml

TOML 0.1

Language	Repo
Clojure	https://github.com/manicolosi/clojoml
Common Lisp	https://github.com/pnathan/pp-toml
Haxe	https://github.com/raincole/haxetoml
Java	https://github.com/johnlcox/toml4j
JavaScript	https://github.com/ricardobeat/toml.js
Python	https://github.com/hit9/toml.py

Unknown (or pre-0.1)

Language	Repo
C	https://github.com/mzgoddard/tomlc
C#	https://github.com/LBreedlove/Toml.net
C#	https://github.com/RichardVasquez/TomlDotNet
C#	https://github.com/rossipedia/toml-net
C++	https://github.com/evilncrazy/ctoml
D	https://github.com/iccodegr/toml.d
Erlang	https://github.com/kalta/etoml
Erlang	https://github.com/kaos/tomle
Go	https://github.com/laurent22/toml-go
Haskell	https://github.com/seliopou/toml
Java	https://github.com/asafh/jtoml
Java	https://github.com/agrison/jtoml
Java	https://github.com/mschuetz/toml
JavaScript	https://github.com/alexanderbeletsky/toml-js
JavaScript	https://github.com/biilmann/coffee-toml
JavaScript	https://github.com/Jonarod/markty-TOML
JavaScript	https://github.com/JonAbrams/tomljs
Objective-C	https://github.com/mneorr/toml-objc
Objective-C	https://github.com/amazingsyco/TOML
Perl	https://github.com/alexkalderimis/config-toml.pl
PHP	https://github.com/checkdomain/toml
PHP	https://github.com/coop182/toml-php
PHP	https://github.com/jamesmoss/toml
PHP	https://github.com/shukean/php-toml
Python	https://github.com/bryant/pytoml
Python	https://github.com/elssar/tomlgun
Python	https://github.com/f03lipe/toml-python
Python	https://github.com/marksteve/toml-ply
Ruby	https://github.com/charliesome/toml2
Ruby	https://github.com/jm/toml
Ruby	https://github.com/sandeepravi/tomlp
Rust	https://github.com/mneumann/rust-toml
Scala	https://github.com/axelarge/tomelette
Scala	https://github.com/loop-less-code/toml-parser