Building a modern functional compiler from first principles. (http://dev.stephendiehl.com/fun/)

Get the native JavaScript type of a value, fast. Used by superstruct, micromatch and many others!

String case utitility: convert, identify, flip, extend

Asynchronous type validation for node and the browser

Infer the content-type of a request.

Small, dependency-free, fast Python package to infer file types checking the magic numbers signature

Strongly-typed JavaScript object with support for validation and error handling.

A Result monad for modelling success or failure operations.

Simple type checking.

Type level helper to ensure type safety in Vuex

Is the value an object, and not an array or null?

A JavaScript type checking/casting library

Text wrapping for type animations.

Generate GraphQL schema language from API specifications and more

Simple RFC 6838 media type parser and formatter

Pythonic type checking

Converts Thrift specs into Flow JavaScript type definitions

Custom Scalar Types for GraphQL-Tools

Readable and consistent C++ type introspection - Compiler Decipherer

A comprehensive MIME-types lib for PHP

Is the typeof value a javascript primitive?

🎲 ES6 toolkit library to detect device and browser properties.

ReflectionBridge : Provides some extensions which define a bridge for the differences between Type and TypeInfo.

A library for checking and casting types.

A PEG Parsing Tool

Js library for creating typing effect on webpage.

A tool for generating Mypy type stubs from a Protocol Buffer definition.

JSON Validator for TypeScript - Safer JSON.parse() validating by TypeScript types

A type checker for Elixir

Tiny Library for fix problem of language selection in type text.