ariadne

ariadne is a Rust crate for rendering pretty, source-spanned diagnostic reports — the kind of output you see from compilers and linters pointing at specific lines and columns in source code. It serves the same niche as miette and codespan-reporting but with a focus on fine-grained label control and visual polish.

Use ariadne when building parsers, compilers, or any tool where errors need to reference specific source locations. It complements typed error crates like thiserror or snafu — those define what went wrong, ariadne shows where. See rust-error-crate-comparison for the full diagnostic rendering landscape.