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.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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    Go From AI Idea to AI App Fast

    One platform to build, fine-tune, and deploy ML models. No MLOps team required.

    Access Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
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  • 1
    PicMo

    PicMo

    JavaScript emoji picker. Any app, any framework

    Plain JavaScript emoji picker. Any app, any framework. Use PicMo to add a rich emoji picker to any JavaScript project, regardless of the framework. Use the platform's native emojis, or cross-platform emojis from Twemoji. Even add your own custom emojis and GIFs. Search for emojis by name or tags. Customize sizing, layout, and UI elements. Emoji data is loaded once from a CDN and cached in the browser for subsequent sessions. Use the default operating system emoji images or use an alternative renderer to use, for example, images from Twemoji. It's just JavaScript, no frameworks or libraries required. This means you can use it in any app under any framework. Includes light and dark themes, with the ability to extend them to create your own. Add custom images and GIFs! Render inline on the page or as a popup.
    Downloads: 3 This Week
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  • 2
    PixiJS

    PixiJS

    The HTML5 Creation Engine

    PixiJS is a fast and lightweight 2D rendering library that lets you create rich, interactive graphics, cross platform applications, and HTML5 games even without prior knowledge of WebGL. It’s a fantastic tool for creating rich, interactive content and with built-in cross platform compatibility and graceful degradation, there’s less work for you and more space for fun and creativity! PixiJS works across all devices and is incredibly fast. If you want to create exceptional experiences without having to deal with dense, low level code, browser inconsistencies, WebGL API or device compatibility, PixiJS is for you! See some great examples and creations made with PixiJS in the official website: https://www.pixijs.com/
    Downloads: 3 This Week
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  • 3
    Recharts

    Recharts

    Redefined chart library built with React and D3

    A composable charting library built on React components. Quickly build your charts with decoupled, reusable React components. Built on top of SVG elements with a lightweight dependency on D3 submodules. Customize your chart by tweaking component props and passing in custom components.
    Downloads: 3 This Week
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  • 4
    Zent

    Zent

    A collection of essential UI components written with React

    Zent is a React-based UI component library developed by Youzan, designed to provide a comprehensive set of reusable components for building modern web applications efficiently. It includes both general-purpose UI elements and domain-specific components, making it particularly useful for business-oriented applications such as dashboards, admin panels, and eCommerce systems. The library emphasizes developer productivity by offering high-quality, ready-to-use components that reduce the need to build common interface elements from scratch. Zent supports TypeScript out of the box, ensuring type safety and better developer experience in large-scale projects. It also features customizable themes, allowing teams to adapt the visual style to match branding requirements while maintaining consistency across the application. The library is optimized for modern browsers and supports server-side rendering, making it suitable for performance-critical applications.
    Downloads: 3 This Week
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  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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  • 5
    brain.js

    brain.js

    GPU accelerated Neural networks in JavaScript for Browsers

    GPU accelerated Neural networks in JavaScript for Browsers and Node.js. brain.js is a GPU accelerated library for Neural Networks written in JavaScript. Brain.js depends on a native module headless-go for GPU support. In most cases installing brain.js from npm should just work. However, if you run into problems, this means prebuilt binaries are not able to download from GitHub repositories and you might need to build it yourself. Brain.js is super simple to use. You do not need to know Neural Networks in detail to work with this. Brain.js performs computations using GPU and gracefully fallback to pure JavaScript when GPU is not available. Brain.js provides multiple neural network implementations as different neural nets can be trained to do different things well. Easily export and import trained models using JSON format or as a function. Host pre-trained models on your website easily.
    Downloads: 3 This Week
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  • 6
    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: 3 This Week
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  • 7
    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: 2 This Week
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  • 8
    Better Auth

    Better Auth

    The most comprehensive authentication library for TypeScript

    Better Auth is framework-agnostic authentication (and authorization) library for TypeScript. It provides a comprehensive set of features out of the box and includes a plugin ecosystem that simplifies adding advanced functionalities with minimal code in a short amount of time. Whether you need 2FA, multi-tenant support, or other complex features. It lets you focus on building your actual application instead of reinventing the wheel.
    Downloads: 2 This Week
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  • 9
    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: 2 This Week
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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  • 10
    Intermock

    Intermock

    Mocking library to create mock objects with fake data for TypeScript

    Intermock is a TypeScript utility developed by Google that automatically generates mock objects and JSON data for TypeScript interfaces using the Faker library. It simplifies frontend and API testing by creating realistic, schema-compliant mock data directly from interface definitions, eliminating the need for manual mock creation. Intermock supports a wide range of TypeScript constructs including interfaces, unions, generics, mapped types, and tuples, ensuring comprehensive type coverage. It can be used both via a command-line interface (CLI) and programmatically through its API, making it suitable for integration into build pipelines or development environments. The tool also allows fine-grained control over output format—object, JSON, or string—and supports JSDoc annotations to define custom Faker data generators. By leveraging Intermock, developers can quickly generate realistic mock datasets for testing, prototyping, and documentation purposes without writing boilerplate code.
    Downloads: 2 This Week
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    Downloads: 2 This Week
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  • 12
    Kibo UI

    Kibo UI

    A custom registry of composable, accessible and open source shadcn/ui

    Kibo UI is an open-source registry of composable, accessible UI components built atop the shadcn/ui system. Designed for developers using React and TypeScript, Kibo extends the foundational primitives of shadcn/ui by offering a broader set of prebuilt components that integrate seamlessly with Radix UI and other headless libraries. It aims to reduce boilerplate while maintaining flexibility and accessibility, making it ideal for building modern, responsive web applications.
    Downloads: 2 This Week
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  • 13
    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: 2 This Week
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  • 14
    Mantine

    Mantine

    A fully featured React components library

    Mantine is a MIT‑licensed open‑source React component library offering a comprehensive set of UI elements and hooks for building modern, accessible, and responsive web applications with ease and great developer experience. Collection of 50+ hooks for state and UI management. Core components library – 100+ components. Forms management library. Manages files drag 'n' drop to an area or entire screen.
    Downloads: 2 This Week
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  • 15
    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
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  • 16
    Pretext

    Pretext

    Pure JavaScript/TypeScript library for multiline text measurement

    Pretext is an experimental project that explores new ways of structuring and presenting textual or code-based content, with a strong emphasis on clarity, composability, and developer-oriented workflows. It is designed to rethink how text and structured information are authored, processed, and rendered, often focusing on minimal abstractions and highly readable formats. The project reflects a philosophy of reducing unnecessary complexity while still enabling powerful transformations and reuse of content. It appears to function as a lightweight system for defining structured documents that can be interpreted or transformed into different outputs. Pretext encourages a declarative approach where content is written in a way that separates structure from presentation, making it easier to adapt across contexts. It is particularly relevant for developers interested in tooling, documentation systems, or alternative markup paradigms.
    Downloads: 2 This Week
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  • 17
    Signature Pad

    Signature Pad

    HTML5 canvas based smooth signature drawing

    Signature Pad is a JavaScript library for drawing smooth signatures. It's HTML5 canvas based and uses variable width Bézier curve interpolation based on Smoother Signatures post by Square. It works in all modern desktop and mobile browsers and doesn't depend on any external libraries. Demo works in desktop and mobile browsers. You can check out its source code for some tips on how to handle window resize and high DPI screens. You can also find more about the latter in HTML5 Rocks tutorial. This library is provided as UMD (Universal Module Definition) and ES6 module. When you modify width or height of a canvas, it will be automatically cleared by the browser. SignaturePad doesn't know about it by itself, so you can call signaturePad.clear() to make sure that signaturePad.isEmpty() returns correct value in this case.
    Downloads: 2 This Week
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  • 18
    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: 2 This Week
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  • 19
    Tamagui

    Tamagui

    Style React fast with 100% parity on React Native

    Tamagui is a cross-platform UI framework and styling system for React and React Native that enables developers to build high-performance applications with a single codebase shared across web and mobile platforms. It combines a universal style system with a powerful optimizing compiler that transforms styled components into efficient, platform-specific output, significantly improving runtime performance. The framework provides a superset of the React Native styling API, allowing developers to write styles once and have them work consistently across environments. Tamagui also includes a full UI kit with both styled and unstyled components, enabling flexible design system creation. Its compiler performs advanced optimizations such as CSS extraction, tree flattening, and dead code elimination, reducing bundle size and improving rendering speed. The system includes robust theming capabilities with support for design tokens, responsive props, and dynamic themes like dark mode.
    Downloads: 2 This Week
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  • 20
    doc.rustdesk.com

    doc.rustdesk.com

    Document of RustDesk

    This repository powers RustDesk’s official documentation site, serving as the central knowledge base for installing, configuring, and operating the open-source remote desktop ecosystem. It consolidates step-by-step guides for end users, administrators, and self-hosting teams, from client setup to server deployment and maintenance. The docs explain concepts like rendezvous versus relay roles, NAT traversal, security settings, and platform-specific nuances across Windows, macOS, Linux, and mobile. Clear navigation and task-oriented articles help readers move quickly from first-time installation to advanced troubleshooting. The project treats documentation as code, enabling version control, community contributions, and swift iteration alongside product releases. It also provides best practices around performance tuning, authentication choices, and network topology so organizations can run RustDesk confidently at scale.
    Downloads: 2 This Week
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  • 21
    nbdime

    nbdime

    Tools for diffing and merging of Jupyter notebooks

    nbdime provides tools for diffing and merging Jupyter notebooks. Jupyter notebooks are useful, rich media documents stored in a plain text JSON format. This format is relatively easy to parse. However, primitive line-based diff and merge tools do not handle well the logical structure of notebook documents. nbdime, on the other hand, provides “content-aware” diffing and merging of Jupyter notebooks. It understands the structure of notebook documents. Therefore, it can make intelligent decisions when diffing and merging notebooks. Many of us who are writing and sharing notebooks do so with git and GitHub. Git doesn’t handle diffing and merging notebooks very well by default, but you can configure git to use nbdime and it will get a lot better.
    Downloads: 2 This Week
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  • 22
    pdfme

    pdfme

    A TypeScript based PDF generator library, made with React

    TypeScript base PDF generator and React-based UI. Open source, developed by the community, and completely free to use under the MIT license. No complex operations are required. Just bring your favorite template and generate all the PDFs you need. Works on node and the browser. Anyone can easily create and modify templates using Designer (UI template editor). Templates have a JSON document representation, which makes theme easy to understand and easy to work with.
    Downloads: 2 This Week
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  • 23
    react-tiny-virtual-list

    react-tiny-virtual-list

    A tiny but mighty 3kb list virtualization library

    The react-tiny-virtual-list project is a lightweight and highly efficient list virtualization library designed to render large datasets in React applications without performance degradation. It focuses on simplicity and minimal footprint, offering a dependency-free solution that is only a few kilobytes in size. The library works by rendering only the visible portion of a list, reducing memory usage and improving rendering speed. It supports both fixed and variable item sizes, allowing developers to build flexible and dynamic interfaces. The component also includes features such as scrolling to specific indices and handling horizontal or vertical layouts. Its design makes it ideal for applications that need to display thousands or even millions of items efficiently. Overall, it provides a minimal yet powerful foundation for building high-performance list interfaces in React.
    Downloads: 2 This Week
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  • 24
    ACK NestJs Boilerplate

    ACK NestJs Boilerplate

    NestJs v10.x Boilerplate. Repository Design Pattern. MongoDB

    ACK NestJS Boilerplate is a starter project for building scalable backend applications with NestJS, providing authentication, validation, and logging utilities.
    Downloads: 1 This Week
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  • 25
    AtomicServer

    AtomicServer

    An open source headless CMS / real-time database

    Create, share, fetch, and model Atomic Data! AtomicServer is a lightweight, yet powerful CMS / Graph Database. Atomic Data is a modular specification for sharing, modifying, and modeling graph data. It combines the ease of use of JSON, the connectivity of RDF (linked data), and the reliability of type-safety. Atomic Data uses links to connect pieces of data, and therefore makes it easier to connect datasets to each other - even when these datasets exist on separate machines.
    Downloads: 1 This Week
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