HTML+ERB linter for validating HTML structure and enforcing best practices

Detect/remove browser hacks from CSS files.

Virtual file format for text processing

A set of efficient utilities that extend the use of JSON (streaming, estimate size, NDJSON/JSONL, etc.)

Parse and stringify JSON with comments. It will retain comments even after saved!

TypeScript definitions for json-schema

remark plugin to lint Markdown code style

All Node Sass linter!

Stringify your JSON at max speed

Selectors decision tree - choose matching selectors, fast

JSON Schema validation and specifications

remark-lint rule to warn when block quotes have blank lines without markers

A collection of validation functions for the JSON Schema `format` keyword.

JSON.parse with bigints support

Higher-level content negotiation

Sort an Object or package.json based on the well-known package.json keys

remark-lint rule to warn when the markers of ordered lists violate a given style

remark-lint rule to warn when URLs without angle brackets are used

remark-lint rule to warn when too many spaces are used to create a hard break

remark-lint rule to warn when shortcut reference images are used