rustfmt

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

rustfmt is ranked #6 of 34 in code formatting tools on Inferse. It runs on Linux, macOS, Windows. There is a free plan.

Compared on code formatting tools

Supported languages: Rustrust-lang.github.io
Supported platforms: Windows, macOS, Linux, APIrust-lang.github.io
Editor integration: Yesrust-lang.github.io
Ignore files: Yesrust-lang.github.io
Changed-lines formatting: Norust-lang.github.io
Library API: Yesrust-lang.github.io
License model: mixedrust-lang.github.io

Facts

Purpose: Rustfmt formats Rust code according to style guidelines.github.com · 2 Oct 2026
Install: The README says to install rustfmt on the stable toolchain with `rustup component add rustfmt`.github.com · 2 Oct 2026
Cargo: The `cargo fmt` command formats all binary and library targets in a crate and works with Cargo workspaces.github.com · 2 Oct 2026
Input and output: The rustfmt binary can format files or read Rust code from standard input and write formatted output to standard output.github.com · 2 Oct 2026
Configuration: Rustfmt accepts configuration in `rustfmt.toml` or `.rustfmt.toml`, with stable and nightly-only unstable options.github.com · 2 Oct 2026
Editor integrations: The README lists Vim, Emacs, Sublime Text 3, Atom, Visual Studio Code, IntelliJ, and CLion for running rustfmt from an editor.github.com · 2 Oct 2026
CI use: The README describes using `--check` in CI to report formatting differences through an error code.github.com · 2 Oct 2026
Limit: comments: Rustfmt does not currently attempt to format comments, though it formats code that contains comments.github.com · 2 Oct 2026
Limit: macros: The README says some macro declarations and uses are formatted, while macro declarations and uses are listed among rustfmt’s limitations.github.com · 2 Oct 2026
Nightly options: Unstable configuration options are available only on a nightly toolchain and require opt-in.github.com · 2 Oct 2026
License: Rustfmt is distributed under both the MIT License and Apache License 2.0.github.com · 2 Oct 2026
Security contact: The Rust Security Response Working Group handles vulnerability reports and security issues for rust-lang organization repositories.github.com · 2 Oct 2026
Style stability: The Rust Edition Guide describes a formatting stability guarantee intended to avoid noisy formatting changes when updating the Rust toolchain.doc.rust-lang.org · 2 Oct 2026
Purpose: rustfmt formats Rust code according to style guidelines.github.com · 3 Oct 2026
Install: The README installs rustfmt as a component through rustup.github.com · 3 Oct 2026
Cargo: The `cargo fmt` command formats binary and library targets in a crate and works with Cargo workspaces.github.com · 3 Oct 2026
Direct use: The rustfmt binary formats files in place or reads Rust code from standard input and writes formatted code to standard output.github.com · 3 Oct 2026
Check mode: With `--check`, rustfmt exits with code 0 when no formatting changes are needed and 1 when changes would be made.github.com · 3 Oct 2026
Configuration: Configuration can be set in `rustfmt.toml` or `.rustfmt.toml`, and the default style conforms to the Rust style guide.github.com · 3 Oct 2026
Toolchains: The README says rustfmt runs with Rust 1.24 and above, while the latest version requires the nightly toolchain.github.com · 3 Oct 2026
Editor integrations: The README lists integrations or usage instructions for Vim, Emacs, Sublime Text 3, Atom, Visual Studio Code, and IntelliJ or CLion.github.com · 3 Oct 2026
CI: The README describes using `cargo fmt --all -- --check` to fail a CI build when code is not formatted.github.com · 3 Oct 2026
Limitations: The README lists limitations involving unparsable code, macros, comments, code fragments, non-ASCII Unicode, and bugs.github.com · 3 Oct 2026
Nightly options: The README marks coverage, checkstyle, and JSON emit formats as nightly-only options.github.com · 3 Oct 2026
License: rustfmt is distributed under both the MIT License and Apache License 2.0.github.com · 3 Oct 2026
IntelliJ and CLion: The IntelliJ and CLion instructions describe enabling rustfmt on save or assigning a shortcut to reformat a file.github.com · 3 Oct 2026
Support: The README points users to `rustfmt --help` and `cargo fmt --help` for command usage and arguments.github.com · 3 Oct 2026