Rust code formatter

Rust code formatting is essential for readability and maintainability in Rust projects. This tool accepts a single field input containing Rust code and returns a fully formatted version that follows common Rust style guidelines. It emphasizes consistent indentation, line wrapping, and spacing to reduce time spent on manual edits. In addition to formatting, it preserves comments and doc attributes wherever possible and maintains semantic equivalence of the original code. It serves developers, code reviewers, educators, and teams that share Rust snippets.
Under the hood, the formatter parses the input into an AST, applies deterministic formatting rules, and emits code that is syntactically valid and consistently styled. Output is suitable for direct inclusion in reviews, PRs, or shared snippets. If the input contains non-Rust constructs or incomplete blocks, the formatter applies safe fallbacks and returns a diagnostic payload describing the issues while still providing the best-effort formatted portion.
This tool is valuable for developers, code reviewers, educators, and teams seeking fast, repeatable Rust formatting without local tooling. Its real-time, single-field experience reduces setup friction during quick iterations and helps standardize snippets in documentation and tutorials.
Core features include deterministic formatting, preservation of comments, and alignment with Rust guidelines. Optional enhancements may include style profiles and adjustable wrap width in future releases.