JSPM

Singleton Manager is a package that provides a simple way to manage singletons in your application. It allows you to create, retrieve, and manage singletons with ease and type safety.

useful typescript types

Strongly-typed deep and recursive object merging. Considers all nested levels of objects, arrays, sets and maps.

A type-safe, flexible enum factory for TypeScript with runtime validation and type inference

A type-safe wrapper for Tauri's invoke function

Type-safe RPC for NestJS — call Nest methods like local functions with zero boilerplate.

TypeScript library for type-safe and lossless encoding and manipulation of world currencies and precious metals

Utils for building type-safe action pipelines with context and error handling.

Typed Event Emitter is a TypeScript library that provides a strongly typed event emitter, allowing developers to define custom events with specific payloads, ensuring type safety and reducing runtime errors in event-driven applications.

A lightweight, type-safe TypeScript library for generating prefixed IDs with customizable options

A strictly typed & minimal RegExp wrapper.

O(1) type safe role based access control

Utils for type-safe error handling in TypeScript.

Type-safe React Router 7 framework mode helpers with enhanced fetching, form submission, and state management

forked version of dxf-json

A simple TypeScript library providing type guards for the primitive types in JavaScript.

Type-safe nested object access and manipulation for TypeScript 🚀

🚀 A modern, type-safe, and performance-optimized Google Analytics 4 (GA4) tracking library for React and Next.js applications. Features comprehensive ecommerce tracking, automatic event batching, SSR support, and production-ready error handling. Built wi

This package provides strongly typed PayloadCMS types, enhancing the type safety and validation of your PayloadCMS queries and operations. It allows you to perform type-safe selections, where clauses, sort operations, and CRUD operations with strong type

Validate anything simply and type-safely

Type-safe internationalization tool for Next.js App Router with co-location and IDE code jumping

Typesafe specialized enums for TypeScript - Smooth like butter

A type-safe RPC for all webextension, client side code does not contain the actual called code, supports async generator functions

practical functions and reusable configurations

A TypeScript-first decorator library that simplifies Electron IPC communication with type safety and automatic proxy generation

A minimalist, type-safe, error-safe typed functions in 214 lines of TypeScript based on Zod v4. No batteries, just functions. Simple alternative to oRPC and tRPC.

A scalable and type-safe Electron IPC management tool with enhanced DX

Type-safe, performant GunDB hooks for React/Preact with authentication, error handling, and debugging utilities

A simple typesafe wrapper for RabbitMQ that simplies the config and management of RabbitMQ.

Type-safe RPC library for building Model Context Protocol (MCP) servers

Javascript utilities

The type-safe Node.js and browser RPC library built on top of socket.io. Empowered with SOA governance and load balancing.

Ultra-type-safe TypeScript toolkit for building AI applications with Anthropic Claude

Robust WebSocket utilities for Nostr applications with automatic reconnection, supporting both ESM and CommonJS. Features channel-based messaging, heartbeat monitoring, message queueing, and comprehensive error handling with type-safe handlers.

A simple, type-safe, and composable way to handle errors in TypeScript

A type-safe groupBy function for TypeScript

A utility library for creating type-safe Gulp plugins with streamlined error handling, file transformation, and TypeScript support

Lightweight, type-safe request validation middleware for Express using Zod

XyPriss Security is an advanced JavaScript security library designed for enterprise applications. It provides military-grade encryption, secure data structures, quantum-resistant cryptography, and comprehensive security utilities for modern web applicatio

A TypeScript library for typed attributes and modifiers with deterministic evaluation

A TypeScript library that implements Rust-like traits with compile-time type checking and runtime verification.

Simple data converter

A TypeScript library for creating type-safe Redux action creators and reducers with minimal boilerplate.

Tree shakable typebox helper utilities

Nuxt module to define and easily consume your backend API in a validated and type-safe way using procedures and Zod schemas.

Functions for manipulating strings.

A comprehensive CLI tool for generating type-safe navigation helpers across modern web frameworks. Includes route analytics, performance analysis, validation, documentation generation, and migration assistance with full TypeScript support.

JavaScript/TypeScript 实用工具集合

@jsonlee_12138/enum is a utility library for creating type-safe enums in TypeScript. It offers more powerful features than the built-in enum, including labels, extra metadata, and easy access to options and dict collections.

CLI for parsing and validating YINI config files: type-safe values, nested sections, comments, minimal syntax noise, and optional strict mode.

Interactive CLI tool that generates type-safe TypeScript clients from MCP servers

React hooks for type-safe error handling with Result types. Stop throwing, start returning.

Type-safe route generation and navigation for Next.js App Router

A blazing-fast, TypeScript-first Node.js framework with HTTP/2 support, file-based routing, powerful middleware system, and end-to-end type safety for building modern APIs.

Comprehensive DTO package for ServeMate restaurant management system. Includes type-safe DTOs with Zod validation for users, orders, payments, tables, and menu items management.

A fully type safe utility for Zustand that allows you to easily update state using React style `setState` functions (framework agnostic, doesn't require React).

Ultra-fast TypeScript-first schema validation with zero dependencies and 27+ language support

Type-safe React form to be used with Typescript

Minimal typed HTML templating helpers for Hono/Workers/HTMX. JSX-free, type-safe HTML generation with automatic escaping.

Tool interface for Agenite

Type-safe data mapper for TypeScript with zero runtime overhead

Type-safe utility collection for TypeScript projects

Turn your Zod schemas into configurable field arrays for easy integration with HTML, React, Vue, and more.

TypeScript type guard utilities providing runtime type checking and validation with zero dependencies

A type-safe marriage of `EventTarget` and `EventEmitter`.

Type-safe utility functions for JavaScript/TypeScript: string, array, object, date, validation, crypto, format, math

Toolkit for building Solid/SolidStart apps.

Type-safe JSON Schema specification library

Tiny JS Type Checker Module for Node & Browser — Supports Stringified Types

Type-safe regular expression pattern builder for TypeScript with fluent API

Type-safe wrapper for JavaScript Object API with zero external dependencies

Type-safe, universal HTTP client for BlaizeJS APIs with automatic route inference, zero configuration, and support for browsers, Node.js, serverless, and edge environments.

A tiny TypeScript utility for parsing and validating environment variables using Zod.

🚀 Enterprise-grade RabbitMQ wrapper for Node.js & TypeScript - High-throughput messaging with automatic retry, DLQ, batch processing & graceful shutdown. Production-ready AMQP client with zero message loss guarantee.

[](https://www.npmjs.com/package/model-validator-ts)

A lenient XML stream parser for Node.js and browsers that can handle incomplete or malformed XML data, with depth control, CDATA support for XML serialization and round-trip parsing, wildcard pattern support for stopNodes, and CDATA handling within stopNo

Type-safe storage library with fallback values

A type-safe, modern, Gradle-inspired task runner.

Package for creating mongoose schemas out of Zod schemas for type safety, and removing duplicate effort.

TSdux utilities for Observables

A TypeScript Jira API client with dual ESM/CJS support for Jira REST API and Atlassian Forge applications. Zero runtime dependencies.

:rainbow: Simple and fast type safe server library.

A type-safe storage solution for localStorage and sessionStorage with built-in TypeScript support, ensuring robust and scalable browser data persistence.

A smart JSON parser and stringifier that automatically converts dates, numbers, and booleans to their proper types — with multiple build formats for Node.js and browsers.

TypeScript utilities for type-safe error handling and optional values

Type-safe Redux utilities for TypeScript

Easily create a fully-typed Express JSON RPC API over HTTP. No code generation step required. Inspired by tRPC, but much simpler.

A lightweight TypeScript library for managing and organizing query keys for React Query projects, enabling consistent, type-safe key usage without extra dependencies.

localStorage-based preference manager for web apps, userscripts etc

The modular and type-safe schema library for transforming values

🚀 Instant type-safe mock APIs from your TypeScript types. Zero config, maximum productivity.

Type-safe wrapper for Node.js Worker Threads

Type-safe reactive form builder for Svelte 5

TypeScript-first environment configuration with Zod validation, .env support, hot reloading, and startup validation. Zero-config setup - just install and use! Perfect for Node.js, AWS Lambda, and modern TypeScript applications.

Node.js fs and fs/promises wrapped in neverthrow Result types for type-safe error handling

Type-safe Restana service with Zod validation and OpenAPI generation

A nested component Svelte 5 Runes pattern for structuring objects/arrays and their properties

A comprehensive TypeScript library for Chrome Extension API, providing type-safe wrappers and utilities for bookmarks, commands, context menus, cookies, downloads, storage, notifications, runtime, scripting, and side panel functionalities.

type/data-centric schema library. A schema library empower you, not constrain you with their types messy types.

A Prisma-like, type-safe, and reactive ORM for IndexedDB. Say goodbye to callbacks and enjoy a modern developer experience in the browser

A lightweight JSON Schema validator generator that creates minimal TypeScript code and type definitions

A mini-ORM for localStorage with type safety and SQL-inspired API

A lightweight, type-safe dependency injection container for TypeScript.

A router based on parser combinators

mini-orm with full type support for postgres.

Type-safe MongoDB wrapper with Zod validation at runtime and compile-time.

A solution for type-safe IPC communication in Electron

A modern, type-safe REST API client builder for TypeScript/JavaScript applications with React hooks integration, automatic validation, and intelligent error handling.

Manage your environment variables with ease

一个基于 YAPI 的 TypeScript 接口代码生成工具，支持自动生成类型安全的 API 接口文件

Utils for type-safe function composition in TypeScript.

Enhanced promise type to be used with flow.js

Node Config Module

Enhanced async/await effects for TypeScript applications. Effectively provides resilient error handling, dependency injection, retry logic, timeouts, circuit breakers, and resource cleanup for Node.js and browser environments. Build testable async workflo

Strongly-typed function to get a nested & potentially null/undefined property value safely from an object

Node.js child_process wrapped in neverthrow Result types for type-safe error handling

Type-safe event handling with runtime validation using guardz for unsafe data from 3rd parties

Lightweight, type-safe router for JavaScript and TypeScript applications with parameterized routes support

Option/Maybe type to be used with flow.js

Type-safe TSX runner with automatic Type-checking

A functional TypeScript/JavaScript component library with composable architecture based on Material Design 3

A type-safe API mocking tool for frontend development, powered by axios and Zod.

🔥Surgical Precision Type Safe For Realtime Database Web, Write RTDB Code That Stand The Test Of Time

A modern TypeScript validation library designed around familiar interface syntax and powerful conditional validation. Experience schema validation that feels natural to TypeScript developers while unlocking advanced runtime validation capabilities.

A type safe translator that knows what to say and how to handle the rest. Supports custom messages, rich replacements, and async loading.

Simple type-safe actions

A TypeScript implementation of Rust-like traits and collections, providing efficient and type-safe implementations along with common trait patterns.

Minimal, type-safe CLI framework for Bun

A highly typed, provider-agnostic analytics library for TypeScript applications

a lightweight, hook-based modal management library for React. It leverages React Context and custom hooks to offer an intuitive, type-safe API for handling multiple modals—making it easy to show, hide, update, and persist modal state across your app.

Type-safe utilities for working in TypeScript. For example, a type-safe property path type, deep partial type, etc.

A type-safe string templating library for TypeScript

A strict TypeScript-only utility to check if a number is odd, with modern type safety.

Type-safe Express route handlers based on OpenAPI schemas

Disposiq is a utility collection of Dispose pattern

A strongly-typed Express router with Zod validation and automatic type inference for params, body, query, and middleware

type operation utilities.

Type-safe environment variable parser with validation and error handling for Node.js and React Native

TypeScript SDK for the Pinarkive API v2.1 - Full type safety for IPFS file management with directory DAG uploads, file renaming, and enhanced API key management. Perfect for TypeScript projects requiring compile-time type checking.

A TypeScript and React library for providing type-safe internationalization messages.

A lightweight, type-safe browser storage wrapper for localStorage and sessionStorage with namespace support and type checking.

Transform Prisma schemas to TypeORM entities with NestJS integration and fast pg-mem testing

client that connect http framework in phecda-server

High-performance event system for React applications and services. Features type-safe event handling, automatic cleanup, real-time monitoring, and service integration.

🔥 High Precision Typescript Wrapper for Firestore React Native, Providing Unparalleled Type Safe and Dev Experience

A powerful and flexible configuration management library for NestJS applications. Supports JSON, YAML file loading, environment variable overrides, immutable configurations, and type-safe configuration access with dependency injection.

A lightweight, type-safe RPC library for TypeScript with Zod validation

Type safe existential property access using ES6 proxies

Comprehensive TypeScript Types Library for Electronic Medical Record (EMR) Applications - Domain-Driven Design with Zod Validation

Convert numbers to words in any language.

A modern TypeScript query string parser and stringifier with enhanced type safety and additional features

A utility to convert Prisma schemas to Zod schemas.

The core engine for Nexus, a type-safe, default-safe, cross-context communication framework.

一个基于 YAPI 的 TypeScript 接口代码生成工具，支持自动生成类型安全的 API 接口文件

TypeScript client for Typsio, a RPC library based on socket.io.

Generic type guard to check if a given value is a member of enum

Javascript (and Typescript) valibot number schemas

Framework-agnostic, lightweight router.

Rust's Result type for type-safe error handling in TypeScript.

A type-safe event emitter for TypeScript with priority-based listeners, sequential/parallel execution strategies, and memory leak detection

CLI para integração entre Swagger e Axios

An Astro integration that allows for creating type-safe server endpoints.

A minimal TypeScript event bus: subscribe(Class, handler), async delivery, dead events, and polymorphic dispatch.

TypeScript SQL query parser with compile-time column type extraction

A type-safe set of utilities that focuses on reducing the amount of test code that you write while maximizing coverage. Compatible with BDD testing frameworks like Jasmine and Mocha.

route type safe for page location with pathname, query, hash, state

A mini-ORM for localStorage with type safety and SQL-inspired API

Type-safe fragment masking plugin for GraphQL Code Generator, providing helper functions for managing GraphQL fragments with enhanced type safety and customizable configurations.

Type-safe environment variable management for TypeScript applications

Type-safe schema validation library with zero dependencies

@ayka/fiji is a configuration management library that provides a flexible and type-safe way to handle application configurations. It supports environment variables, default values, and secret management.

Simple, type-safe immutable data structure for Typescript

Type-safe cache key generation with zero dependencies

A comprehensive collection of 100+ production-ready React hooks for state management, UI effects, forms, animations, and more. Carefully curated and optimized for performance and developer experience.

Type-safe local storage

A modern, type-safe, and flexible HTTP framework for building scalable APIs with TypeScript

A strongly-typed dependency injection library.

Minimalistic, type-safe dependency injection solution for TypeScript

A small, growing set of type-safe TypeScript helpers.

Type-safe DynamoDB document mapper with schema-based operations

avro-schema-builder

A TypeScript library for creating structured data objects with ease.

A library that allows you to generate mongoose schemas from zod objects.

A type-safe, modular, chainable image processing library built on top of OpenCV.js with a fluent API leveraging pipeline processing.

Maybe

Type-safe HTTP client that doesn't suck - Fetch for humans who have stuff to build

A TypeScript library that provides type-safe Remote Procedure Call (RPC) communication between different JavaScript contexts using various transport mechanisms

A simple and consistent error handling library for TypeScript applications. Provides type-safe error handling with great DX, solving common pain points like unknown error types, lost stack traces, async error handling, and error serialization. Isomorphic

Inject Typesafe is a 100% typesafe dependency injection framework for typescript that takes a alternative very lightweight approach to dependency injection that feels more like state management than a black box.

A Fastify plugin that automatically converts query parameter types based on Zod schemas

Co-located, type-checked translations for React components.

Type-safe result handling with MaybeError pattern

A reusable Directus + GraphQL codegen library & CLI

Type-safe deep merge utility.

A powerful, type-safe middleware system for Next.js with plugin architecture, route protection, caching, logging, and internationalization support

👮‍♀️ Type-safe interactions with any HTTP API

Complete Next-Generation Discord Bot Framework with Type-Safe API, Auto-Caching, and Real-Time Gateway

TypeScript library for building type-safe, composable services using a contract-first approach

React-Redux Type enhancement suite.

JsonIndexer is a utility class designed for efficient parsing and indexing of large JSON files. It reads the file in chunks to minimize memory usage, identifies specific arrays or objects by key, and builds an index for quick access. This index includes m

Type-safe path for Next.js

Core library of Retux, a minimalist declarative type-safe(strongly-typed) scalable Redux architecture.

Transformer for Elysia and Hono

Arise type-safe IoC containers from your code. Zero overhead, zero coupling.

A lightweight, fully type-safe MongoDB ODM in TypeScript, inspired by Drizzle ORM.

Type-Safe Discord API Definitions and Utilities

A lightweight type-safe function builder with interceptors, schema validation, and context management for TypeScript applications.

Type-safe event emitter with compile-time event name and payload type checking

Type safe dependency injection

🔗 Simplified, type-safe wrapper for web extension messaging, ensuring seamless communication across different contexts.

An opinionated type validator API indpendent from schema validators like Zod, Valibot, etc

A TypeScript library for handling units and measurements with support for multiple formats (tuples, objects, strings, dimensions) and operations (arithmetic, comparison). Modular, tree-shakable, and designed for safe, boilerplate-free usage.

A utility for managing search params state with TanStack Router in a type-safe way

Turn your .env into a fortress—type-checked, secure, and effortless for React, Vite, and Node.

A lightweight, zero-dependency TypeScript library that brings Rust's Result type to your JavaScript/TypeScript projects

Utilities for a more type-safe TypeScript

Architectural constructs for web applications.

TypeScript library offering robust contracts for encoding and decoding values with strong type safety.

Tool for type safe value validation

A TypeScript library that brings Rust-inspired features to TypeScript, including traits, Option, Result, and more. Zero dependencies, type-safe implementation.

Type-safe error handling with discriminated unions and type guards for TypeScript

Universal automated translation management tool for i18n projects with dynamic language detection - works with Vue.js, React, Angular, Node.js, and any framework using JSON locale files

Set and get cookies with optional type validation with a Standard Schema.

A lightweight TypeScript library that enhances your SQL workflow by combining raw SQL with targeted type safety and schema validation

🔧 Enhance your Chrome extensions with efficient and type-safe RPC communication across all layers.

TypeScript client library for zdata backend API with authentication and full CRUD operations

Modern TypeScript currency converter with type inference and multiple providers (Google Finance, Fixer.io). Framework agnostic with clean architecture.

Type-Safe Discord Component Builders with Fluent API

tailwind-merge + clsx wrapper

A parser combinator library designed for TypeScript, offering type inference and compile-time safety for building modular and maintainable parsers.

A comprehensive starter kit for building agent-centric applications with Next.js, featuring RAG capabilities, chatbot widgets, and multi-tenant architecture

Type-Safe Discord REST API Client with Advanced Rate Limiting

A lightweight library for handling prompts with embeddable variables in a type-safe manner

Type-safe query engine for static content including Markdown, YAML, JSON, and more.

Type-safe TypeScript decorators for generating OpenAPI specifications with Promise unwrapping support

E2E Testing Reinvented with AI - A powerful TypeScript browser automation framework using AI-powered testing with LangChain, OpenAI GPT-4o, and Playwright

Fast, type-safe utilities for vector embedding comparison and search.

Type-safe generic builder pattern implementation in Typescript

A TypeScript generic library for managing application configurations with complete type safety

library for crafting types and casting type inhabitants

**GG-Express** is an Express.js wrapper that enforces strong type requirements for `GET`, `POST`, `PUT`, and `DELETE` methods. It ensures that `req.query` and `req.body` follow strict structure definitions and automatically generates an `apiConnector` cla

A utility for fetching valid ARIA roles dynamically, validating roles, and providing type-safe access to ARIA role names.

A flexible and easy-to-use configuration management service for TypeScript/JavaScript applications, allowing initialization, setting, and retrieval of configuration parameters.

Type-safe schema-based URL builder

Predictable and strongly typed fetch requests.

A collection of dependency free functors written in typescript

Unopinionated utilities for interacting with REST APIs on the client-side

🚀 FinPro.js by Scott Lexium - The most comprehensive TypeScript library for financial data operations. Features 154+ currencies, 250+ countries, MongoDB-style queries, dual ESM/CommonJS support, and flag integration. Created by Scott Lexium for modern Ja

Type safe Object Document Mapper (ODM) for MongoDB

Fluently and type-safely write IPC for Electron