# webhintio/hint

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_How this analysis was created: the description and tags below were written by an AI model that read this project's README and public documentation pages; stars, license and language come straight from the GitHub API. The model does not read the source code._

3,703 stars · 810 forks · TypeScript · Apache-2.0

## Links

- GitHub: https://github.com/webhintio/hint
- Homepage: https://webhint.io/
- awesome-repositories: https://awesome-repositories.com/repository/webhintio-hint.md

## Topics

`a11y` `best-practices` `hacktoberfest` `hint` `hints` `interoperability` `lint` `performance` `pwa` `pwas` `security` `security-scanner` `webhint`

## Description

Hint is a web development linter and static analysis tool that audits HTML, CSS, and JavaScript. It provides a suite of specialized validators designed to ensure compliance with accessibility standards, web security header requirements, and general development best practices.

The project distinguishes itself by analyzing a wide range of web quality metrics, including browser compatibility for CSS and JavaScript features and PWA configuration validation. It also includes an analyzer for measuring page load speeds, caching, and compression strategies to optimize web performance.

The system is built on a plugin-based engine that supports custom rule creation, parsers, and formatters. These audits can be executed through a command line interface, integrated into code editors, or run via browser developer tools for real-time site scanning.

## Tags

### Development Tools & Productivity

- [Web Development Linters](https://awesome-repositories.com/f/development-tools-productivity/web-development-linters.md) — Provides a comprehensive static analysis tool for auditing HTML, CSS, and JavaScript against web development best practices.
- [Browser Compatibility Verification](https://awesome-repositories.com/f/development-tools-productivity/debugging-profiling-testing/browser-compatibility-verification.md) — Identifies outdated or unsupported CSS and JavaScript features to ensure consistent experiences across different browsers.
- [Browser DevTools Inspections](https://awesome-repositories.com/f/development-tools-productivity/browser-based-app-inspection/browser-devtools-inspections.md) — Integrates site scanning and issue identification directly within browser developer tools. ([source](https://webhint.io/docs/user-guide/extensions/extension-browser/))
- [Editor Integrations](https://awesome-repositories.com/f/development-tools-productivity/code-editors-ides/extension-ecosystems-management/editor-extensions/editor-integrations.md) — Reports diagnostic data directly within the editor workspace to help identify issues throughout the development process. ([source](https://webhint.io/docs/user-guide/))
- [Development Workflow Integration](https://awesome-repositories.com/f/development-tools-productivity/development-workflow-integration.md) — Surfaces analysis results during development via a command line interface, browser extensions, and IDE plugins. ([source](https://cdn.jsdelivr.net/gh/webhintio/hint@main/README.md))
- [Site Scanning Interfaces](https://awesome-repositories.com/f/development-tools-productivity/devtool-extensions/browser-devtools-panel-extensions/site-scanning-interfaces.md) — Provides a visual interface within browser developer tools to run site scans against multiple hint sets. ([source](https://webhint.io/docs/user-guide/))
- [Lint Result Formatters](https://awesome-repositories.com/f/development-tools-productivity/output-formatters/lint-result-formatters.md) — Supports the development of custom formatters to specify how linting results are structured for various output targets. ([source](https://webhint.io/docs/contributor-guide/))
- [Shareable Configurations](https://awesome-repositories.com/f/development-tools-productivity/project-scaffolding-config-code-generation/project-scaffolding-configuration/shareable-configurations.md) — Provides the ability to package sets of linting rules and settings for reuse across multiple different projects. ([source](https://webhint.io/docs/contributor-guide/))
- [Static Analysis Editors](https://awesome-repositories.com/f/development-tools-productivity/source-code-editors/static-analysis-editors.md) — Integrates real-time static analysis within the editor to identify and fix web-standard issues during development. ([source](https://webhint.io/docs/user-guide/extensions/vscode-webhint/))

### Part of an Awesome List

- [Code Analysis and Linting](https://awesome-repositories.com/f/awesome-lists/devtools/code-analysis-and-linting.md) — Performs static analysis on web pages to enforce coding standards and identify common errors. ([source](https://cdn.jsdelivr.net/gh/webhintio/hint@main/README.md))

### Security & Cryptography

- [Security Headers](https://awesome-repositories.com/f/security-cryptography/application-and-system-security/web-security/security-headers.md) — Scans for missing or incorrect HTTP security headers to mitigate browser-based attack vectors.

### Software Engineering & Architecture

- [Plugin-Based Rule Engines](https://awesome-repositories.com/f/software-engineering-architecture/configuration-driven-rule-engines/plugin-based-rule-engines.md) — Employs a plugin-based engine where each validation check is encapsulated in an independent rule module.
- [Linting Rule Configurations](https://awesome-repositories.com/f/software-engineering-architecture/configuration-validation/linting-rule-configurations.md) — Enables customization of the analysis process via configuration files to ignore errors or elevate warnings. ([source](https://webhint.io/docs/user-guide/))
- [Linting Rule Configurations](https://awesome-repositories.com/f/software-engineering-architecture/project-management-governance/project-governance/standards-rule-enforcement/configuration-driven-rules/linting-rule-configurations.md) — Determines which audits to run and their severity levels by reading project-specific configuration files at runtime.
- [Abstract Source Representations](https://awesome-repositories.com/f/software-engineering-architecture/abstract-source-representations.md) — Transforms diverse source formats into structured data objects that the linting engine can consistently evaluate.
- [Interface-Agnostic Cores](https://awesome-repositories.com/f/software-engineering-architecture/interface-agnostic-cores.md) — Separates core linting logic from delivery mechanisms, enabling execution across CLIs, IDEs, and browser extensions.
- [Parser Development Kits](https://awesome-repositories.com/f/software-engineering-architecture/parser-development-kits.md) — Provides a framework for creating custom parsers that transform source code into structured data for analysis. ([source](https://webhint.io/docs/contributor-guide/))
- [Pluggable Rule Sets](https://awesome-repositories.com/f/software-engineering-architecture/schema-validated-rule-sets/pluggable-rule-sets.md) — Allows grouping related validation rules into modular, shareable packages that can be composed and reused across projects.

### System Administration & Monitoring

- [Web Performance Analyzers](https://awesome-repositories.com/f/system-administration-monitoring/monitoring-and-observability/web-performance-analyzers.md) — Measures page load speeds and evaluates caching and compression strategies to optimize web delivery.

### Testing & Quality Assurance

- [Web Accessibility](https://awesome-repositories.com/f/testing-quality-assurance/accessibility-visual-testing/web-accessibility.md) — Analyzes web content for color contrast and keyboard usability to ensure inclusive access. ([source](https://webhint.io/docs/user-guide/hints/))
- [Custom Validation Rules](https://awesome-repositories.com/f/testing-quality-assurance/code-quality-checks/custom-validation-rules.md) — Allows users to define new validation checks to identify specific patterns or issues within web project source code. ([source](https://webhint.io/docs/contributor-guide/))
- [Performance Analysis](https://awesome-repositories.com/f/testing-quality-assurance/performance-testing-analysis/performance-analysis.md) — Analyzes compression and caching strategies to identify bottlenecks and reduce page load times. ([source](https://webhint.io/docs/user-guide/hints/))
- [Accessibility Auditors](https://awesome-repositories.com/f/testing-quality-assurance/software-testing/quality-compliance-auditing/accessibility-auditors.md) — Programmatically inspects web content to ensure compliance with accessibility standards and keyboard usability.
- [Web Quality Auditors](https://awesome-repositories.com/f/testing-quality-assurance/web-quality-auditors.md) — Evaluates websites against a set of predefined rules to identify accessibility, performance, and security issues. ([source](https://webhint.io/docs/))
- [Analysis Output Formatting](https://awesome-repositories.com/f/testing-quality-assurance/static-code-analysis/analysis-output-formatting.md) — Decouples analysis logic from the presentation layer through interchangeable formatters for different environments.

### Web Development

- [Browser Compatibility & Utilities](https://awesome-repositories.com/f/web-development/browser-integration-utilities/browser-compatibility-utilities.md) — Identifies unsupported CSS, HTML, and JavaScript features to ensure a consistent cross-browser experience. ([source](https://webhint.io/docs/user-guide/hints/))
- [Performance Auditing](https://awesome-repositories.com/f/web-development/performance-optimizations/performance-auditing.md) — Analyzes websites or local files to produce detailed reports on performance bottlenecks and best practice violations. ([source](https://webhint.io/docs/user-guide/))
- [Web Performance Optimization Tools](https://awesome-repositories.com/f/web-development/web-performance-optimization-tools.md) — Measures page load times and evaluates caching and compression strategies to optimize overall site speed.
- [PWA Configuration Tooling](https://awesome-repositories.com/f/web-development/pwa-configuration-tooling.md) — Validates PWA configurations by inspecting web app manifests and platform integration. ([source](https://webhint.io/docs/user-guide/hints/))
