RintenkiA fast HTML linter

103 Built-in Rules

Comprehensive rules based on the HTML Living Standard covering conformance, accessibility, naming, maintainability, and style.

Rust-Powered

Parsing by html5ever (Rust) with Node.js native bindings via napi-rs for blazing fast performance.

Auto-Fix

8 auto-fixable rules with --fix support. Integrate into your workflow with CLI, API, or VS Code extension.

Parser Plugins

Support for Vue, JSX/TSX, eRuby, and Astro via optional parser plugins.

Why "Rintenki"?

The name comes from the Japanese word "輪転機" (rintenki), meaning a rotary printing press — a machine that prints and inspects large volumes of pages at high speed. The name was chosen because "lint" and "rint" (輪転) sound alike. Just as a rotary press rapidly inspects printed pages, rintenki quickly scans and checks your HTML.