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Object schema description language and validator for JavaScript objects

JSON Schema validator that uses code generation to be extremely fast

Easy property validation for Express

JSON API sanitization and validation

The fastest JSON Schema validator. Supports v5, v6 and v7 proposals

Simple and composable way to validate data in JavaScript (and TypeScript)

Object schema validation

TypeScript-first schema validation with static type inference

Markdown processor powered by plugins

Markdown parser with 100% CommonMark support, extensions and syntax plugins

Fast full-featured spec compliant HTML parser

A CSS parser, transformer, and minifier written in Rust

Strip comments from JSON

Strip comments from CSS

Parse JSON with more helpful errors

Streaming JSON.parse and stringify

Fast CSV parser. Callback interface for the above

Streaming CSV parser that aims to be faster than everyone else

Simple parser generator that produces fast parsers with excellent error reporting

Simple, fast, powerful parsing for JavaScript

Extract a value from a buffer of JSON without parsing the whole thing

Parse, manipulate and convert modern CSS to make it compatible with all browsers. Extensible with plugins

Very fast YAML parser

XML to JavaScript object converter