browserutils

Rust Formatter

Format Rust code with rustfmt-style indentation

Rust Formatter is a free online tool from BrowserUtils that format rust code with rustfmt-style indentation. It runs entirely in your browser — your data never leaves your device. No account required.

How to use Rust Formatter

  1. 1 Paste or type your input into the editor above.
  2. 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
  3. 3 Copy the result with one click or continue editing your input.

About Rust Formatter

Free online Rust formatter. Format Rust source code with 4-space indentation following rustfmt conventions for consistent, readable code. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.

Rust Formatter specs

Runtime
100% client-side (browser)
Cost
Free — no account, no rate limits, no usage caps
Browser support
Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
Part of
299 developer tools on BrowserUtils (100% client-side)

Questions

Does this follow rustfmt conventions?
Yes, the formatter uses 4-space indentation and same-line opening braces, following standard Rust formatting conventions.
Does it handle Rust-specific syntax?
Yes, the formatter handles impl blocks, trait definitions, match expressions, lifetime annotations, macros, and other Rust-specific constructs.
Can I format Rust code with macros like vec! and println!?
Yes, macro invocations are recognized and their contents are indented properly. Both function-like macros and declarative macro definitions are handled.
Does the Rust formatter work without installing the Rust toolchain?
Yes, this tool runs entirely in your browser. You do not need Rust, Cargo, or rustfmt installed to format Rust code here.
Embed this tool

Copy this code to embed the tool on your website. Adjust the height to fit your layout.

<iframe src="https://www.browserutils.dev/embed/rust-formatter" width="100%" height="500" frameborder="0" title="Rust Formatter"></iframe>

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