Rust-based Markdown linter compatible with CommonMark and GFM, benchmarked at 49-60x faster than markdownlint on ~1,500 files.
Key Takeaways
Benchmark on M1 Max: mado runs in 0.129s vs 6.4-7.8s for markdownlint-cli (Node), markdownlint (Ruby), and markdownlint-cli2 (Node).
Supports most markdownlint rules (MD001-MD047); a handful marked unstable, a few with unsupported options.
Config via mado.toml, global config paths per OS, JSON Schema available, and native GitHub Actions integration.
Install via Homebrew, Nix, Arch pacman, Scoop, or WinGet; pre-built binaries also on release page.
Development tooling includes hyperfine benchmarking, flamegraph profiling, and cargo-fuzz for fuzz testing.
Hacker News Comment Review
The main discussion compares mado to rumdl, another Rust markdown linter; mado is older (April 2024 vs March 2025) and faster per rumdl’s own benchmarks.
Key differentiator: mado is linter-only; rumdl adds partial formatting and an LSP, making them partially complementary rather than direct replacements.
