Allow parsing of top-level await in modules

TypeScript-first schema declaration and validation library with static type inference

Painless forms for Vue.js

mjml-validator

React Form Component

Dead simple Object schema validation

Polyfill of future proposal for `util.parseArgs()`

validate and sanity-check geojson files

Type utilties for creating nominal/branded types in TypeScript

The most simple logger imaginable

A set of Typescript types and helpers to work with DatoCMS Structured Text fields.

WebAssembly tools for JavaScript

A JavaScript implementation of a extendable, fully compliant JSON Schema validator.

Validate XML, Parse XML, Build XML without C/C++ based libraries

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

Schema for data modeling & validation

just emit 'log' events on the process object

make using levelup reverse ranges easy

Hash a stream of data, then validate

utilities for primitive JavaScript types