Browse file extensions by category or letter. Learn what each file type is used for and find software that can open, view, edit, or convert it.
Use this directory to look up file formats, understand what files are used for, and find compatible applications for Windows, macOS, Linux, mobile, and online tools.
Refine your search with categories and letters
A file with the .h++ extension is a C++ header file. Header files are used in C++ programming to declare functions, classes, variables…
Haml (HTML Abstraction Markup Language) is a templating engine designed to simplify and streamline the creation of HTML documents. It…
The .hbs file extension is associated with Handlebars templates. Handlebars is a popular templating engine used primarily in web devel…
A .helmignore file is a specialized configuration file used by Helm, the package manager for Kubernetes, to define which files and dir…
A .hgignore file is a plain text configuration file used by the Mercurial distributed version control system (DVCS). Its primary purpo…
A file with the .hh extension is a header file specifically used in C++ programming. These files serve as a blueprint for source code…
An HPP file is a header file specifically associated with the C++ programming language. It serves as a container for declarations of c…
The HPS file extension is primarily associated with the HPL Engine, a proprietary game engine developed by Frictional Games. These fil…
A file with the .hxx extension is a header file used primarily in C++ programming. It typically contains declarations of classes, func…
A file with the .h++ extension is a C++ header file. Header files are used in C++ programming to declare functions, classes, variables, and constants that are…
Haml (HTML Abstraction Markup Language) is a templating engine designed to simplify and streamline the creation of HTML documents. It is primarily used in web…
The .hbs file extension is associated with Handlebars templates. Handlebars is a popular templating engine used primarily in web development. It allows develop…
A .helmignore file is a specialized configuration file used by Helm, the package manager for Kubernetes, to define which files and directories should be exclud…
A .hgignore file is a plain text configuration file used by the Mercurial distributed version control system (DVCS). Its primary purpose is to specify untracke…
A file with the .hh extension is a header file specifically used in C++ programming. These files serve as a blueprint for source code, containing declarations…
An HPP file is a header file specifically associated with the C++ programming language. It serves as a container for declarations of classes, functions, consta…
The HPS file extension is primarily associated with the HPL Engine, a proprietary game engine developed by Frictional Games. These files contain scripts writte…
A file with the .hxx extension is a header file used primarily in C++ programming. It typically contains declarations of classes, functions, variables, and oth…
Everything you need to know about file extensions