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.

  • Outbound sales software Icon
    Outbound sales software

    Unified cloud-based platform for dialing, emailing, appointment scheduling, lead management and much more.

    Adversus is an outbound dialing solution that helps you streamline your call strategies, automate manual processes, and provide valuable insights to improve your outbound workflows and efficiency.
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  • Rezku Point of Sale Icon
    Rezku Point of Sale

    Designed for Real-World Restaurant Operations

    Rezku is an all-inclusive ordering platform and management solution for all types of restaurant and bar concepts. You can now get a fully custom branded downloadable smartphone ordering app for your restaurant exclusively from Rezku.
    Learn More
  • 1
    Jspicl

    Jspicl

    A Javascript to PICO-8 Lua transpiler

    Jspicl is a JavaScript to PICO-8 Lua transpiler that allows developers to write their game logic in JavaScript, which is then transpiled into the Lua subset supported by PICO-8. This enables developers more comfortable with JavaScript to create games for the PICO-8 platform.
    Downloads: 5 This Week
    Last Update:
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  • 2
    Language support for Java for VS Code

    Language support for Java for VS Code

    Java Language Support for Visual Studio Code

    Provides Java ™ language support via Eclipse ™ JDT Language Server, which utilizes Eclipse ™ JDT, M2Eclipse and Buildship. Now that Java extension will publish platform-specific versions, it will embed a JRE for supported platforms such as win32-x64, Linux-x64, Linux-arm64, darwin-x64, and darwin-arm64. The embedded JRE is used to launch the Language Server for Java. Users are only responsible for configuring Project JDKs to compile your Java projects.
    Downloads: 5 This Week
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  • 3
    NG-ZORRO

    NG-ZORRO

    Angular UI Component Library based on Ant Design

    An enterprise-class Angular UI component library based on Ant Design, all components are open source and free to use under MIT license. An enterprise-class UI design language for Angular applications. 60+ high-quality Angular components out of the box. Written in TypeScript with predictable static types. The whole package of development and design resources and tools. Support OnPush mode, high performance. Powerful theme customization in every detail. Internationalization support for dozens of languages.
    Downloads: 5 This Week
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  • 4
    Nebular

    Nebular

    Customizable Angular UI Library based on Eva Design System

    Nebular is a customizable Angular UI library that contains 40+ UI components, four visual themes, and Auth and Security modules. Recognized at the prestigious AngularConnect 2018, this Angular framework allows focusing on beautiful designs to adapt them to your brand. Nebular is free of charge and open-source. Nebular is a customizable Angular UI Library based on Eva Design System specifications, with 40+ UI components, 4 visual themes, Auth and Security modules. Each feature is a separate npm module. Use only what you need. Sizes, colors, appearances, shapes, and other useful settings. Source code is free and available under the MIT license. A straightforward way to integrate your brand. Choose from 40+ ready-to-use Angular UI components with no 3rd party dependencies. Benefit from an easier and faster way of building a visually appealing and responsive UI for apps.
    Downloads: 5 This Week
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  • Skillfully - The future of skills based hiring Icon
    Skillfully - The future of skills based hiring

    Realistic Workplace Simulations that Show Applicant Skills in Action

    Skillfully transforms hiring through AI-powered skill simulations that show you how candidates actually perform before you hire them. Our platform helps companies cut through AI-generated resumes and rehearsed interviews by validating real capabilities in action. Through dynamic job specific simulations and skill-based assessments, companies like Bloomberg and McKinsey have cut screening time by 50% while dramatically improving hire quality.
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  • 5
    Pattern Craft

    Pattern Craft

    Professional-grade background patterns and gradients

    Pattern Craft is a frontend resource focused on helping developers quickly add polished visual texture to websites and applications through a curated collection of modern background patterns and gradients. The project centers on production-ready snippets that are meant to be copied directly into real interfaces rather than treated as static inspiration only. Its repository describes more than 100 patterns and gradient snippets, with an emphasis on modern CSS techniques and Tailwind-friendly implementation, which makes it especially useful for teams already building with component-based frontend stacks. The experience is designed around fast discovery and immediate usability, since users can preview patterns live, browse organized categories, and save favorites for later reuse. It is particularly well suited to developers and designers working in React, Next.js, Vue, Angular, or similar frontend ecosystems.
    Downloads: 5 This Week
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  • 6
    Radix Primitives

    Radix Primitives

    Radix Primitives is an open-source UI component library

    Radix UI Primitives is a low-level, headless component library designed to provide the behavioral and accessibility foundations for building modern web interfaces without imposing any visual styling. It focuses on delivering fully accessible components that strictly follow WAI-ARIA guidelines, ensuring proper keyboard navigation, focus management, and screen reader compatibility out of the box. Instead of shipping pre-styled components, Radix provides unstyled primitives that developers can fully customize using any styling solution, allowing complete control over appearance while relying on robust underlying logic. The library includes common UI patterns such as dialogs, dropdowns, tooltips, and accordions, all implemented with consistent APIs and predictable behavior. Its architecture exposes granular building blocks, enabling developers to compose or extend components to fit their design systems.
    Downloads: 5 This Week
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  • 7
    React Router

    React Router

    Declarative routing for React

    React Router is a standards‑focused, multi‑strategy routing library for React applications, offering both full‑framework capabilities and lightweight, flexible library usage. It enables robust routing experiences across React versions. It supports advanced features in React 19. You can use it maximally as a React framework or minimally as a library with your own architecture. First‑class type safety with automatic type generation for route params and data. It is designed to facilitate migration from React 18 to React 19 with non‑breaking upgrades
    Downloads: 5 This Week
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  • 8
    RetroLab

    RetroLab

    JupyterLab distribution with a retro look and feel

    RetroLab (also known as JupyterLab Retro, previously called JupyterLab Classic) is a JupyterLab distribution with a retro look and feel, more similar to the classic Jupyter notebook.
    Downloads: 5 This Week
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  • 9
    Scene.js

    Scene.js

    Scene.js is JavaScript & CSS timeline-based animation library

    Scene.js supports two plays: javascript and css animation. It's perfect to use it in context and not feel the difference. Scene.js have complete control over time. No matter what time you choose, this can show you the right movement for that time. With Scene.js, SVG can be used by CSS animation in Chrome and can also be controlled by point through 'attribute'. Scene.js can control multiple elements at the same time. Even though the time between the start and end of each element is different, it can be repeated. Scene.js supports a variety of value types, such as CSS, and can be handled in JavaScript. Scene.js provides effect presets that can give animation effects or make animation easier. You can view the code and animation of clapperboard, the main logo of scene.js
    Downloads: 5 This Week
    Last Update:
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  • Iris Powered By Generali - Iris puts your customer in control of their identity. Icon
    Iris Powered By Generali - Iris puts your customer in control of their identity.

    Increase customer and employee retention by offering Onwatch identity protection today.

    Iris Identity Protection API sends identity monitoring and alerts data into your existing digital environment – an ideal solution for businesses that are looking to offer their customers identity protection services without having to build a new product or app from scratch.
    Learn More
  • 10
    dockview

    dockview

    Zero dependency docking layout manager supporting tabs

    dockview is a zero-dependency docking layout manager written in TypeScript that enables developers to create highly dynamic, IDE-like interfaces with draggable panels, tabs, and resizable layouts. It supports multiple layout paradigms, including split views, grid layouts, and dockable panels, allowing complex UI arrangements similar to tools like Visual Studio Code. The library is framework-agnostic at its core, with official bindings for React, Vue, and Angular, as well as support for vanilla TypeScript. Dockview includes advanced features such as floating panels, popout windows, and persistent layout serialization, enabling users to save and restore custom workspace configurations. Its architecture emphasizes performance and flexibility, providing a comprehensive API for programmatic control over layout behavior. The system also supports theming and customization through CSS variables, allowing seamless integration into different design systems.
    Downloads: 5 This Week
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    See Project
  • 11
    k8s-graceful-shutdown

    k8s-graceful-shutdown

    The library provides the resources to implement graceful shutdown

    The library provides the resources to implement a graceful shutdown with Kubernetes. When running microservices in Kubernetes. We need to handle the termination signals emitted by Kubernetes. The simple app shown above, adds a graceful shutdown period of 5 seconds after which the hook, which takes care of closing the server with the help of our shutdown functionality, gets triggered. Upon sending a SIGINT or SIGTERM signal, the user can see that a grace period of 5 seconds after which a waiting async operation of 3 seconds takes place, and only then the message 'shutdown after graceful period' indicate the closing of the server will be displayed. The app also showcases the functionality of the "getHealthHandler". Upon requesting localhost:3000/health, the healthTest will return true and the message 'everything is great' indicating a positive health check should be displayed.
    Downloads: 5 This Week
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  • 12
    libsodium.js

    libsodium.js

    libsodium compiled to Webassembly and pure JavaScript

    libsodium.js is a JavaScript and WebAssembly port of the widely used libsodium cryptographic library, providing modern, high-level cryptographic functions for secure application development in web and Node.js environments. It exposes a comprehensive set of APIs for encryption, decryption, hashing, digital signatures, and key exchange, all designed to be safe and easy to use without requiring deep cryptographic expertise. The library leverages WebAssembly for improved performance, enabling near-native execution speeds within browsers and JavaScript runtimes. It is designed to prevent common cryptographic mistakes by offering secure defaults and abstractions that reduce the risk of misuse. libsodium.js is particularly useful for building secure web applications, messaging systems, and privacy-focused tools that require client-side encryption. It also maintains compatibility with the native libsodium library, allowing interoperability across different platforms and languages.
    Downloads: 5 This Week
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  • 13
    nosvelte

    nosvelte

    An experimental Svelte library for building Nostr apps easily

    An experimental Svelte library for building Nostr apps easily.
    Downloads: 5 This Week
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  • 14
    react-error-boundary

    react-error-boundary

    Simple reusable React error boundary component

    react-error-boundary is a tiny, well-tested utility that makes React’s error boundaries practical and ergonomic for everyday apps. It wraps React’s error-handling primitives in a single <ErrorBoundary> component with a predictable API for rendering fallbacks when descendant components throw during render, lifecycle, or event handlers. The library emphasizes recovery, not just failure: you can reset the error state programmatically or when certain “reset keys” change, returning the subtree to a healthy state without a full page refresh. It supports both declarative fallbacks (elements) and a render-prop approach so you can tailor the UI to the error and provide retry buttons or diagnostics. Callbacks make it easy to log errors to your own telemetry, show toasts, or trigger side effects when boundaries trip or reset. A companion useErrorHandler hook lets you re-throw async errors from hooks or event handlers into the nearest boundary, unifying error flows across component styles.
    Downloads: 5 This Week
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  • 15
    shadcn/ui

    shadcn/ui

    Beautifully designed components that you can copy and paste into apps

    Accessible and customizable components that you can copy and paste into your apps. Free. Open Source. Use this to build your own component library.
    Downloads: 5 This Week
    Last Update:
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  • 16
    spartan

    spartan

    Cutting-edge tools powering Angular full-stack development

    spartan is a modern, experimental full-stack toolkit designed to enhance Angular development by combining a flexible UI component system with a broader application stack. It is structured as a monorepo that includes both a UI library and a full-stack solution, enabling developers to build complete applications with consistent tooling and design patterns. One of its defining characteristics is its inspiration from libraries like shadcn/ui, emphasizing ownership of code rather than heavy abstraction, which allows developers to fully customize and extend their components. The UI layer is built on accessible, unstyled primitives that can be enhanced with styled layers, giving teams control over both accessibility and visual design without being locked into a rigid theme. Spartan integrates well with modern Angular tooling such as Nx and Tailwind CSS, making it suitable for scalable, enterprise-level projects.
    Downloads: 5 This Week
    Last Update:
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  • 17
    BizCharts

    BizCharts

    Powerful data visualization library based on G2 and React

    BizCharts is Alibaba's general charting component library, dedicated to creating efficient, professional and convenient data visualization solutions in the middle and backend of enterprises. Based on the React charting library packaged by G2 and G2Plot, it has experienced three years of baptism in Alibaba's complex business scenarios. In terms of convenience, ease of use, and richness, it satisfies the business implementation of conventional charts and highly customized charts. After years of accumulation and continuous polishing, BizCharts 4.0 has been newly upgraded; in addition to having a flexible graphics syntax, it has added an interactive syntax and a better animation experience. At the same time, it enhances the React coding ability, and the writing is freer. The built-in encapsulation of responsive chart g2-plot works out of the box and complements the atomic capabilities of BizCharts to keep moving forward on the visual path of flexibility and ease of use.
    Downloads: 4 This Week
    Last Update:
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  • 18
    Element Plus

    Element Plus

    A Vue.js 3 UI Library made by Element team

    Element Plus is a comprehensive UI component library for Vue 3 that provides a wide range of pre-built, production-ready interface elements designed to accelerate web application development. It is the successor to the widely used Element UI framework and has been fully rewritten in TypeScript to take advantage of Vue 3’s Composition API and modern tooling. The library offers a cohesive design system along with a large collection of components such as forms, tables, navigation elements, and data visualization tools, enabling developers to build complex interfaces efficiently. It supports multiple build systems and modern development environments, making it adaptable to different workflows and project setups. Element Plus also includes internationalization support, theming capabilities, and a strong emphasis on usability and accessibility. Its ecosystem includes tools for migration, component playgrounds, and starter templates that simplify onboarding and development.
    Downloads: 4 This Week
    Last Update:
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  • 19
    Lobe UI

    Lobe UI

    An open-source UI component library for building AIGC web apps

    Lobe UI is an open source UI component library specifically designed for building AI-generated content (AIGC) web applications, offering a modern toolkit tailored to chatbots, AI interfaces, and intelligent systems. It is built with React and TypeScript and integrates closely with Ant Design, allowing developers to leverage familiar component patterns while extending them for AI-centric use cases. The library includes specialized components and configurations for handling features like motion, theming, and internationalization, which are essential in dynamic AI-driven interfaces. It is optimized for modern frameworks such as Next.js and supports server-side rendering with proper configuration, making it suitable for production-grade applications. Lobe UI is part of a broader ecosystem that includes tools for charts, icons, and AI-related utilities, enabling developers to build complete AI products with consistent design.
    Downloads: 4 This Week
    Last Update:
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  • 20
    OpenAPI-TS

    OpenAPI-TS

    The OpenAPI to TypeScript codegen. Generate clients, SDKs, validators

    A TypeScript utility for generating and manipulating OpenAPI definitions, making it easier to work with API schemas in TypeScript projects.
    Downloads: 4 This Week
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  • 21
    Storefront UI

    Storefront UI

    A frontend library for React and Vue that helps developers quickly

    Storefront UI is a frontend component library designed specifically for building eCommerce experiences using modern frameworks such as React and Vue. It focuses on delivering fast, accessible, and visually polished storefront interfaces, providing developers with ready-made components that align with common online shopping patterns. The library is structured to support headless commerce architectures, making it particularly valuable for teams integrating with APIs or backend platforms while maintaining full control over the frontend experience. It includes UI elements for product listings, navigation, carts, and checkout flows, allowing developers to assemble complete storefronts without starting from scratch. Performance and accessibility are core priorities, ensuring that components are optimized for speed and usability across devices. Additionally, the project offers playgrounds and preview environments for both Vue and React implementations, enabling rapid prototyping and testing.
    Downloads: 4 This Week
    Last Update:
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  • 22
    Strawberry

    Strawberry

    Zero-dependency, build-free framework for the artisanal web

    Zero-dependency, a build-free framework for the artisanal web. Strawberry is a tiny front-end framework that gives you reactivity and composability. It does this with zero dependencies, without a build step, and it fits in less than 4KB when gzipped.
    Downloads: 4 This Week
    Last Update:
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  • 23
    Valibot

    Valibot

    Modular and type safe schema library for validating structural data

    Valibot is a modular and type-safe schema library for validating structural data. It provides developers with tools to define and enforce data schemas, ensuring data integrity and consistency across applications.​
    Downloads: 4 This Week
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  • 24
    heroui-native

    heroui-native

    Beautiful, fast and modern React Native UI library

    heroui-native is a modern React Native UI component library designed to provide developers with beautiful, high-performance, and accessible mobile interface elements out of the box. Built with Tailwind CSS principles through Uniwind, it allows developers to apply familiar utility-first styling patterns to native mobile development. The library emphasizes design consistency and usability, offering components that are visually polished while maintaining flexibility for customization. Each component is fully typed and follows predictable patterns, making it easier to integrate into large-scale applications. HeroUI Native also focuses heavily on accessibility, ensuring proper handling of touch interactions, screen readers, and focus management. It includes smooth animations and adaptive behaviors that enhance the user experience without sacrificing performance.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 25
    Discordeno

    Discordeno

    Discord API library for Node and Deno

    Discord API library for Node.JS, Deno & Bun. Discordeno is actively maintained to guarantee excellent performance, latest features, and ease of use. The functional API eliminates the challenges of extending built-in classes and inheritance while ensuring overall simple but performant code. Discordeno offers the option to have practically any component of a bot as a separate piece, including standalone REST, gateways, custom caches, and more. Remove any properties, if your bot doesn't need them. For instance, remove Channel.topic if your bot doesn't require it. You may save GBs of RAM in this way. A few lines of code are all that are needed to accomplish this for any property on any object.
    Downloads: 3 This Week
    Last Update:
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