Browse free open source TypeScript Libraries and projects below. Use the toggles on the left to filter open source TypeScript Libraries by OS, license, language, programming language, and project status.

  • Say goodbye to broken revenue funnels and poor customer experiences Icon
    Say goodbye to broken revenue funnels and poor customer experiences

    Connect and coordinate your data, signals, tools, and people at every step of the customer journey.

    LeanData is a Demand Management solution that supports all go-to-market strategies such as account-based sales development, geo-based territories, and more. LeanData features a visual, intuitive workflow native to Salesforce that enables users to view their entire lead flow in one interface. LeanData allows users to access the drag-and-drop feature to route their leads. LeanData also features an algorithms match that uses multiple fields in Salesforce.
    Learn More
  • Dun and Bradstreet Connect simplifies the complex burden of data management Icon
    Dun and Bradstreet Connect simplifies the complex burden of data management

    Our self-service data management platform enables your organization to gain a complete and accurate view of your accounts and contacts.

    The amount, speed, and types of data created in today’s world can be overwhelming. With D&B Connect, you can instantly benchmark, enrich, and monitor your data against the Dun & Bradstreet Data Cloud to help ensure your systems of record have trusted data to fuel growth.
    Learn More
  • 1
    Material UI

    Material UI

    Comprehensive React component library that implements Material Design

    Material UI is an open-source React component library that implements Google's Material Design. It's comprehensive and can be used in production out of the box. A meticulous implementation of Material Design; every Material UI component meets the highest standards of form and function. Start quickly with Material Design or use the advanced theming feature to easily tailor the components to your needs. CSS utilities allow you to move faster and make for a smooth developer experience when styling any component. Reach out for the Figma Design Kit and the Sync plugin to bridge the gap between development and design when using Material UI.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 2
    Mock Service Worker

    Mock Service Worker

    Seamless REST/GraphQL API mocking library for browser and Node.js

    Mock by intercepting requests on the network level. Seamlessly reuse the same mock definition for testing, development, and debugging. A dedicated layer of requests interception at your disposal. Keep your application's code and tests unaware of whether something is mocked or not. Request the same production resources and test the actual behavior of your app. Augment an existing API, or design it as you go, when there is none. Use Express-like routing syntax to capture outgoing requests. Parameters, wildcards, regular expressions, mocking has never been easier. Browser usage is what sets Mock Service Worker apart from other tools. Utilizing the Service Worker API, which can intercept requests for the purpose of caching, Mock Service Worker responds to captured requests with your mock definition on the network level. This way your application knows nothing about the mocking.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 3
    Monero TypeScript Library

    Monero TypeScript Library

    TypeScript library for using Monero

    A TypeScript library for creating Monero applications using RPC and WebAssembly bindings to Monero v0.18.3.4 'Fluorine Fermi'. A TypeScript library for integrating Monero (XMR) transactions and blockchain functions in applications.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    NextUI

    NextUI

    Beautiful, fast and modern React UI library.

    Make beautiful websites regardless of your design experience. Beautiful, fast, and modern React UI library. Provides a plugin to customize default themes, you can change all semantic tokens or create an entirely new theme. Built on top of Tailwind CSS, which means no runtime styles, and no unnecessary classes in your bundle. Automatic dark mode recognition, NextUI automatically changes the theme when detects HTML theme prop changes. NextUI is fully-typed to minimize the learning curve and provide the best possible developer experience. NextUI comes with a fully well-scaled default dark theme that you can apply to your application by just adding the dark attribute to your HTML.
    Downloads: 2 This Week
    Last Update:
    See Project
  • AI-First Supply Chain Management Icon
    AI-First Supply Chain Management

    Supply chain managers, executives, and businesses seeking AI-powered solutions to optimize planning, operations, and decision-making across the supply

    Logility is a market-leading provider of AI-first supply chain management solutions engineered to help organizations build sustainable digital supply chains that improve people’s lives and the world we live in. The company’s approach is designed to reimagine supply chain planning by shifting away from traditional “what happened” processes to an AI-driven strategy that combines the power of humans and machines to predict and be ready for what’s coming. Logility’s fully integrated, end-to-end platform helps clients know faster, turn uncertainty into opportunity, and transform the supply chain from a cost center to an engine for growth.
    Learn More
  • 5
    OICQ

    OICQ

    Tencent QQ Bot Library for Node.js

    OICQ is a fast, feature-rich QQ client library for Node.js, enabling developers to interact with the QQ messaging platform programmatically.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    Redux

    Redux

    A Predictable State Container for JavaScript apps

    Redux is a small, unopinionated predictable state container for JavaScript apps. It basically lets you write applications that behave in a consistent manner, can run in various environments (native, client and server) and are easy to test. Redux centralizes your app’s state and logic, thereby enabling some powerful capabilities. With Redux it’s possible to implement logging, hot reloading, universal apps, time travel and more with no buy-in from the developer. Unlike Flux (from which Redux was inspired), Redux only has a single store for the object tree where the whole state of your app is stored. This store has a single root reducing function. As your app grows, instead of adding stores you split the root reducer into smaller ones that work independently on different parts of the state tree. This architecture allows for scaling well to large and complex apps, and also enables very powerful developer tools.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7
    SIP.js

    SIP.js

    A simple, intuitive, and powerful JavaScript signaling library

    A JavaScript library that enables WebRTC-based real-time communication over the SIP (Session Initiation Protocol), allowing voice and video calling in web applications.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    SWR

    SWR

    React Hooks library for remote data fetching

    The name “SWR” is derived from stale-while-revalidate, a HTTP cache invalidation strategy popularized by HTTP RFC 5861. SWR is a strategy to first return the data from cache (stale), then send the fetch request (revalidate), and finally come with the up-to-date data. With SWR, components will get a stream of data updates constantly and automatically. And the UI will be always fast and reactive. With just one single line of code, you can simplify the logic of data fetching in your project, and also have all many amazing features out-of-the-box. SWR has you covered in all aspects of speed, correctness, and stability to help you build better experiences. Fast page navigation, polling on interval, data dependency, revalidation on focus, revalidation on network recovery, local mutation (Optimistic UI), smart error retry, pagination and scroll position recovery, React Suspense, and more.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    fireworks-js

    fireworks-js

    Simple fireworks library! Ready to use components available for React

    A simple fireworks library! Ready-to-use components available for React, Vue 3, Svelte, Angular, Preact, Solid, and Web Components.
    Downloads: 2 This Week
    Last Update:
    See Project
  • Easy-to-use Business Software for the Waste Management Software Industry Icon
    Easy-to-use Business Software for the Waste Management Software Industry

    Increase efficiency, expedite accounts receivables, optimize routes, acquire new customers, & more!

    DOP Software’s mission is to streamline waste and recycling business’ processes by providing them with dynamic, comprehensive software and services that increase productivity and quality of performance.
    Learn More
  • 10
    vue-i18n-next

    vue-i18n-next

    Vue I18n for Vue 3

    Internationalization plugin for Vue.js. Easy, powerful, and component-oriented for Vue.js. You can introduce internationalization into your app with a simple API. In addition to simple translation, support localization such as pluralization, number, date time, etc. You can manage locale messages on single file component.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Awesome Privacy

    Awesome Privacy

    A curated list of privacy & security-focused software and services

    Awesome Privacy is a curated directory of privacy-respecting alternatives to mainstream apps and services, organized across many categories like browsers, search, email, messaging, cloud storage, and operating systems. It aims to help you choose tools that reduce tracking, fingerprinting, and data collection without sacrificing usability. Each entry highlights the project’s core properties—such as open source status, end-to-end encryption, and platform availability—so you can evaluate trade-offs quickly. Because product landscapes change fast, the list emphasizes ongoing maintenance and community discussion around quality and trust. It’s useful for privacy newcomers planning a gradual migration as well as experts building a hardened toolchain. The project also surfaces learning resources and practical guidance so you can understand the broader privacy landscape, not just pick tools in isolation.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    Chakra UI

    Chakra UI

    Chakra UI is a component system for building SaaS products with speed

    Chakra UI is a modern, accessible React component system designed for rapid development of design systems and web applications. It provides built-in theming, accessibility, and composability features. To use Chakra UI components, all you need to do is install the chakra-ui/react package and its peer dependencies. Works with Next.js RSC. Component system for building SaaS products with speed. Fully customizable with typography, tokens, and component “recipes”.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    ChordSheetJS

    ChordSheetJS

    A JavaScript library for parsing and formatting chords and chord sheet

    ChordSheetJS is a JavaScript library for parsing, formatting, and transposing chord sheets. It supports various chord sheet formats and provides tools for rendering and manipulating chord and lyric data.​
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    Driver.js

    Driver.js

    A lightweight, dependency-free JavaScript library

    Driver.js is a lightweight, framework-agnostic JavaScript library for building guided tours, feature spotlights, and product walkthroughs. It programmatically highlights elements on a page, dims the background, and attaches callouts so users learn new flows without leaving the UI. The API lets you define steps, order, and behavior, while handling positioning, scrolling, and viewport collisions gracefully. It strives to be unobtrusive: tours can be triggered contextually, resumed, or dismissed without hijacking the app. Accessibility and keyboard interaction are considered so tours remain usable beyond simple mouse clicks. Because it has no hard dependency on a specific framework, it integrates into vanilla JS apps or modern stacks alike.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    Generative AI Examples

    Generative AI Examples

    Generative AI Examples is a collection of GenAI examples

    Efficiently integrate secure, performant, and cost-effective Generative AI workflows into business value. Detailed framework of composable building blocks for state-of-the-art generative AI systems including LLMs, data stores, and prompt engines. Architectural blueprints of retrieval-augmented generative AI component stack structure and end-to-end workflows. A four-step assessment for grading generative AI systems around performance, features, trustworthiness and enterprise-grade readiness.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Google APIs Node.js Client

    Google APIs Node.js Client

    Google's supported Node.js client library

    Google's supported Node.js client library for accessing Google APIs. Support for authorization and authentication with OAuth 2.0, API Keys and JWT (Service Tokens) is included. The full list of supported APIs can be found on the Google APIs Explorer. The API endpoints are automatically generated, so if the API is not in the list, it is currently not supported by this API client library. These client libraries are supported by Google. However, these libraries are considered complete and are in maintenance mode. This means that we will address critical bugs and security issues but will not add any new features. For Google Cloud Platform APIs, we recommend using google-cloud-node which is under active development. This library supports the maintenance LTS, active LTS, and current release of node.js.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Got

    Got

    Human-friendly and powerful HTTP request library for Node.js

    Got implements RFC 7234 compliant HTTP caching which works out of the box in-memory and is easily pluggable with a wide range of storage adapters. Got uses Keyv internally to support a wide range of storage adapters. For something more scalable you could use an official Keyv storage adapter. Hooks allow modifications during the request lifecycle. Hook functions may be async and are run serially. Got will make no further changes to the request before it is sent. This is especially useful in conjunction with got.extend() when you want to create an API client that, for example, uses HMAC-signing. You can override the request function by returning a ClientRequest-like instance or a IncomingMessage-like instance. This is very useful when creating a custom cache mechanism. The response object will typically be a Node.js HTTP response stream, however, if returned from the cache it will be a response-like object which behaves in the same way.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    Groq TypeScript / Node.s

    Groq TypeScript / Node.s

    The official Node.js / Typescript library for the Groq API

    Groq TypeScript / Node.s (also often referred to as “groq-sdk” on npm) is the official Node.js / TypeScript client library for Groq’s REST API, enabling JavaScript/TypeScript developers to integrate LLM and AI-powered services into web backends, serverless functions, or frontend apps. It exports strongly-typed interfaces for models, chat completions, file uploads (e.g. for audio transcription), and other endpoints, allowing for better type safety and developer experience when using Groq from TypeScript. The library also supports passing different input types (file streams, blobs, fetch responses) for media-related endpoints, making it flexible for diverse environments (backend, browser, serverless). With this SDK, developers can call Groq’s models, transcribe audio, perform file uploads — all with minimal boilerplate — which streamlines creation of AI-enabled applications in the JavaScript/TypeScript ecosystem.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    OpenAPI TypeScript Codegen

    OpenAPI TypeScript Codegen

    NodeJS library that generates Typescript or Javascript clients

    OpenAPI TypeScript Codegen is a tool that generates TypeScript clients from OpenAPI specifications, facilitating type-safe API interactions in TypeScript applications.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Phaser 3

    Phaser 3

    This repository contains the code necessary to start making a game

    The Phaser 3 TypeScript Starter Kit is a boilerplate project that provides a structured foundation for developing Phaser 3 games using TypeScript. It includes essential configurations and examples to help developers get started quickly.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    PrimeNG

    PrimeNG

    The most complete Angular UI component library

    Your perfect companion for Angular featuring elegant, high-performance, accessible and fully customizable UI Components. The most complete set of native widgets featuring 80+ easy to use components for all your UI requirements. Hosted at GitHub, all widgets are open source and free to use under MIT license. Feel the power of open source. Don’t get tied up in just one look & feel. Choose from a variety of options including material and bootstrap design. Professionally designed highly customizable native Angular CLI application templates to get you started in no time. Fully accessible and in compliance with Section 508 standards. With the exclusive services of Pro account, you no longer need to post your questions in the community forum and your issues to community issue tracker. Allocate your valuable time on business logic rather than dealing with the complex user interface requirements.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    Saas UI

    Saas UI

    The React component library for startups, built with Chakra UI

    Build intuitive apps that your customers will love. Saas UI is a React component library and starterkit that doesn't get in your way and helps you build intuitive SaaS products with speed. Saas UI ships with an extensive set of foundational and advanced components that cover a wide range of use-cases. Carefully crafted to reduce boilerplate code without sacrificing flexibility. Get started for free with 40+ open source components. Including authentication screens with Clerk, Supabase and Magic. Fully functional forms with React Hook Form. Data tables with React Table.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    Schema.DTS

    Schema.DTS

    JSON-LD TypeScript types for Schema vocabulary

    The project provides a comprehensive set of TypeScript typings based on the Schema vocabulary, enabling developers to author JSON-LD structured data with strong type safety. It supplies both high-level discriminated unions and helper types to model contexts, graphs, and linked data relationships with clarity and accuracy. Usage examples demonstrate how one can import types like Person, WithContext, or Graph and compose JSON-LD objects in a way that aligns with semantic-web and knowledge-graph practices. The repository also contains a generator tool that can pull ontology definitions and emit TypeScript definitions in bulk, ensuring the typings stay up to date and maintain consistency. It supports scenarios such as nested objects, graphs of entities, and action types with input/output constraints, which makes it suitable for rich metadata authoring and linked-data workflows. While it is maintained by Google, it is not an officially supported Google product.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Shumai

    Shumai

    Fast Differentiable Tensor Library in JavaScript & TypeScript with Bun

    Shumai is an experimental differentiable tensor library for TypeScript and JavaScript, developed by Facebook Research. It provides a high-performance framework for numerical computing and machine learning within modern JavaScript runtimes. Built on Bun and Flashlight, with ArrayFire as its numerical backend, Shumai brings GPU-accelerated tensor operations, automatic differentiation, and scientific computing tools directly to JavaScript developers. It allows seamless integration of machine learning, deep learning, and custom differentiable programs into web-based or server-side environments without relying on Python frameworks. The library supports matrix operations, gradient computation, and tensor conversions with intuitive APIs and near-native speed, thanks to Bun’s low-overhead FFI bindings. It can automatically leverage GPU acceleration on Linux (via CUDA) and CPU computation on macOS.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    Stripe Node.js Library

    Stripe Node.js Library

    Node.js library for the Stripe API

    The Stripe Node library provides convenient access to the Stripe API from applications written in server-side JavaScript. For collecting customer and payment information in the browser, use Stripe.js.
    Downloads: 1 This Week
    Last Update:
    See Project