Stylelint website, CSS linter, rules, plugins, configs, style conventions

Stylelint

Stylelint.io is the official website for Stylelint, a CSS linter with documentation for rules, plugins, shared configs, syntaxes, editor integrations, and stylesheet quality workflows.

Website

stylelint.io is the main public website for Stylelint documentation, getting-started guides, rules, configuration, and project links.

Purpose

Stylelint checks CSS and CSS-like syntax for errors, style conventions, invalid patterns, and project-specific rules.

Registration

Who.is lists stylelint.io as registered through Cloudflare, Inc., with an expiration date in May 2030.

Stylelint is a stylesheet linter for CSS rules, plugins, shared configs, syntaxes, and project style conventions.View logo on Stylelint

What Stylelint is

Stylelint official site presents Stylelint as a linter for CSS and related stylesheet syntaxes. The website explains how Stylelint reads stylesheets, applies configured rules, reports problems, and helps teams avoid errors while enforcing consistent styling conventions.

Who uses Stylelint

Stylelint is used by frontend developers, design-system teams, CSS maintainers, component-library authors, and organizations with large stylesheet codebases. It is especially useful when teams want automated checks for custom properties, selectors, nesting, media queries, formatting-adjacent conventions, and CSS-in-JS or preprocessor patterns.

How the website is organized

The Stylelint website is organized around practical documentation. It includes getting-started steps, configuration guidance, rule reference pages, plugin and shared-config information, syntax support, editor integrations, command-line usage, and examples of how to run Stylelint in project workflows.

Rules and configuration

Stylelint works through rules that check stylesheet patterns. A project configuration decides which rules are enabled, how strict they are, which files are linted, which custom syntaxes are used, and which plugins or shared configs should extend the default behavior.

Plugins and shared configs

Plugins let Stylelint support project-specific checks or ecosystem conventions beyond the core rule set. Shared configs package common rule choices so teams can reuse a baseline across projects. The official docs explain how these pieces are installed, extended, and combined.

CSS tooling workflows

Stylelint often runs alongside formatters, preprocessors, bundlers, and PostCSS pipelines. It can be used in editors, package scripts, pre-commit hooks, and continuous integration, giving teams feedback before stylesheet problems become review comments or production bugs.

Strengths and tradeoffs

Stylelint can make stylesheet quality checks repeatable, but rule choices require judgment. Too few rules may miss useful signals, while too many can create noisy feedback. Teams need to tune configuration so Stylelint supports their CSS architecture instead of distracting from it.

Why it matters

Stylelint matters because CSS codebases benefit from automated review just like JavaScript codebases do. Its official website is a central reference for stylesheet linting, shared conventions, plugin-based checks, and the quality layer around modern CSS workflows.

WHOIS domain data

Data pulled: May 24, 2026View current WHOIS record

Domain: stylelint.io
IP address: 18.208.88.157
Registrar: Cloudflare, Inc
WHOIS server: whois.cloudflare.com
Referral URL: http://cloudflare.com
Created: May 21, 2015
Updated: May 5, 2026
Expires: May 21, 2030
Nameservers: bob.ns.cloudflare.com (172.64.33.104); desi.ns.cloudflare.com (173.245.58.96)
Domain status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited; clienttransferprohibited https://icann.org/epp#clienttransferprohibited; renewperiod https://icann.org/epp#renewperiod; transferperiod https://icann.org/epp#transferperiod
Contact privacy: Registrant, admin, technical, and billing contact fields are listed as DATA REDACTED.

Key concepts

Rules define specific stylesheet patterns that should be allowed, warned about, or rejected.
Shared configs bundle rule choices so projects can reuse a consistent linting baseline.
Custom syntaxes let Stylelint understand CSS-like code from preprocessors or CSS-in-JS tools.

Website areas

Getting-started docs explain installation, configuration, and first linting commands.
Rule reference pages document core checks, options, and examples of accepted or rejected code.
Plugin and shared-config pages explain how Stylelint extends beyond its built-in rules.

Common misconceptions

Stylelint is not only a formatter; it analyzes stylesheet patterns and project conventions.
Stylelint does not replace browser testing because some CSS behavior depends on real rendering contexts.
A linter configuration should be maintained as a team convention, not treated as a fixed universal truth.

Open questions

How will Stylelint adapt as native CSS features, nesting, and design-token workflows mature?
Which checks should belong in Stylelint versus formatters, type systems, build tools, or browser tests?
How can teams keep stylesheet linting strict enough to help without creating noisy rule churn?