YML File Type

- The quick facts

What are YML files and how to open them

Are you having problems opening a YML file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a YML file?

The YML file format is used for scripts and source code files that follow human-readable data serialization standards, which were developed for a data-centric markup called YAML. The .yml file extension is used for these files, which are also known as YAML documents. YAML stands for YAML Ain't Markup Language.Formerly known as Yet Another Markup Language, YAML is based on languages like C, Python, Perl and XML. These .yml files are also based on the RFC 2822 electronic mail format. To indicate that YAML is more of a data-centric markup instead of a document markup, Yet Another Markup Language was changed to YAML Ain't Markup Language.These YML files can be opened by using Notepad and other standard text editing applications. These text editing tools can also be used to create and edit the code stored in a .yml file.

How to open YML files

Important: Different programs may use files with the YML file extension for different purposes, so unless you are sure which format your YML file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 5 different YML openers which you will find listed below.

Last updated: March 17, 2022

Suggest another file format using extension YML

While we know of one file format using the .YML file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .YML file.

Various apps that use files with this extension

These apps are known to open certain types of YML files. Remember, different programs may use YML files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Microsoft Web Platform ExtensionsMicrosoft Web Platform ExtensionsUser submitted
Edge Code CCEdge Code CCUser submitted
BracketsBracketsUser submitted
Notepad++Notepad++User submitted
PHPEditPHPEditUser submitted