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.YML File Extension

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File TypeYAML Document

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CategoryDeveloper Files


This file is saved in a plain text format. You can open and view the contents of this file using a text editor.


File created in the YAML (YAML Ain't Markup Language) format, a human-readable data format used for data serialization; allows data to be written and read independent of any particular language; can be incorporated into many different programming languages using supporting YAML libraries, including C/C++, Ruby, Python, Java, Perl, C#, PHP, and others.

More Information

One example of YAML usage is the database.yml file, which is used by Ruby on Rails to save connection information when connecting to a database.

Program(s) that open .YML files
Microsoft Windows LogoWindows
Microsoft Notepad
Other text editor
Mac OS X LogoMac
MacroMates TextMate
Apple TextEdit
Other text editor
Linux LogoLinux
Other text editor
Updated 5/22/2013