nixfmt is a code formatter for the Nix expression language, aiming to provide consistent and idiomatic formatting for Nix files. It is written in Haskell and designed to be fast, predictable, and fully automatic with zero configuration. nixfmt helps Nix developers maintain readability and code consistency across large codebases, facilitating collaboration and version control workflows.

Features

  • Formats Nix code into consistent style
  • Requires no configuration or options
  • Written in Haskell for speed and correctness
  • Supports formatting of large codebases
  • Works well in CI and pre-commit hooks
  • Provides stable and deterministic output

Project Samples

Project Activity

See All Activity >

Categories

Code Formatters

License

Mozilla Public License 1.0 (MPL)

Follow nixfmt

nixfmt Web Site

Other Useful Business Software
Our Free Plans just got better! | Auth0 Icon
Our Free Plans just got better! | Auth0

With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
Try free now
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of nixfmt!

Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

Haskell

Related Categories

Haskell Code Formatters

Registered

2025-07-17