Modern TypeScript JSON diff library - Zero dependencies, high performance, ESM + CommonJS support. Calculate and apply differences between JSON objects with advanced features like key-based array diffing, JSONPath support, and atomic changesets.

Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r

Patch typescript to support custom transformers in tsconfig.json

The protocol buffer compiler plugin "protobuf-ts" generates TypeScript, gRPC-web, Twirp, and more.

An object-oriented command-line parser for TypeScript

Generate JSON schema from your Typescript sources

A pure typescript BMP encoder and decoder

retry for functions returning a promise

TypeScript implementation of debounce

Formatting of io-ts validation errors

Node.js module to detect the C standard library (libc) implementation family and version

code generation DSL for TypeScript

Use Typescript for configuration files. Types for safety. Compiled for speed.

RPC-like experience over a regular REST API, with type safe server implementations 🪄

Parse in reverse

A TypeScript string enum for compile-time safety when working with event.key

Generate zod schemas from typescript types/interfaces

Realistic password strength estimation written in typescript

🌀 OpenAPI to TypeScript code generator. Production-grade SDKs, Zod schemas, TanStack Query hooks, and 20+ plugins. Used by Vercel, OpenCode, and PayPal.

Implementation of newtypes in TypeScript