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.
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The .nasm file extension is primarily associated with the Netwide Assembler (NASM), which is an 80x86 and x86-64 assembler designed fo…
A .netmodule file is a .NET Framework assembly that does not contain an assembly manifest. It's essentially a compiled code module, si…
A NIB file is a resource file used in macOS and iOS development to store user interface designs. The acronym stands for NeXT Interface…
A Ninja build file is a configuration file used by the Ninja build system, a small and incredibly fast build tool designed to focus on…
Nunjucks is a powerful templating engine for JavaScript, heavily inspired by Jinja2 (Python). Files with the `.njk` extension are Nunj…
An .npmignore file is a configuration file used by the Node Package Manager (npm) in the Node.js development ecosystem. Its primary pu…
The .nasm file extension is primarily associated with the Netwide Assembler (NASM), which is an 80x86 and x86-64 assembler designed for portability and modular…
A .netmodule file is a .NET Framework assembly that does not contain an assembly manifest. It's essentially a compiled code module, similar to a DLL (Dynamic L…
A NIB file is a resource file used in macOS and iOS development to store user interface designs. The acronym stands for NeXT Interface Builder, reflecting its…
A Ninja build file is a configuration file used by the Ninja build system, a small and incredibly fast build tool designed to focus on speed. Unlike more tradi…
Nunjucks is a powerful templating engine for JavaScript, heavily inspired by Jinja2 (Python). Files with the `.njk` extension are Nunjucks template files. Thes…
An .npmignore file is a configuration file used by the Node Package Manager (npm) in the Node.js development ecosystem. Its primary purpose is to prevent speci…
Everything you need to know about file extensions