.TOML File Extension

TOML Configuration File

Developer Tom Preston-Werner
3.4  |  22 Votes
Category Developer Files
Format Text

What is a TOML file?

A TOML file is a settings file saved in the TOML (Tom's Obvious, Minimal Language) format. Various programs use TOML files to load configuration settings. For example, Minecraft Forge, a popular Minecraft modding program, loads settings from TOML files.

More Information
Screenshot of a .toml file in Microsoft Visual Studio Code
TOML file open in Microsoft Visual Studio Code

Developer Tom Preston-Werner created the open-source TOML format in 2013. Each TOML file consists of plain text key-value pairs that define a program's settings. Typically, related settings are divided into sections denoted by bracketed text (e.g., [New Section]).

Many programs use one or more TOML files to store and load their settings. Users can edit these files to adjust the associated program's settings to their liking.

NOTE: TOML files are formatted similarly to .JSON and .YAML files. However, TOML is designed to be easier to read and understand than JSON and YAML.

How to open a TOML file

You can open and edit a TOML file with Microsoft Notepad (Windows), Apple TextEdit (Mac), or any other text editor.

For instructions on how to use or edit a specific program's TOML files, refer to that program's documentation.

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Programs that open TOML files

Updated December 28, 2022

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