lookup> F#

F#

F# is a programming language recognized by GitHub Linguist and used with .fs, .fsi, .fsx.

programming language

Quick facts

NameF#

Aliasesfsharp

Typeprogramming language

Extensions.fs .fsi .fsx

MIME type—

What is F#

F# is a programming language recognized by GitHub Linguist and used with .fs, .fsi, .fsx.

GitHub Linguist classifies F# as a programming language, typically using extensions such as .fs, .fsi, .fsx.

File extensions:

.fs.fsi.fsx

Related languages

Frequently asked questions

F# is a programming language recognized by GitHub Linguist and used with .fs, .fsi, .fsx.

Common extensions include .fs, .fsi, .fsx.

Sources & standards

Updated 2026-08-18

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