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.

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  • 1
    webgl-plot

    webgl-plot

    A high-Performance real-time 2D plotting library based on native WebGL

    webgl-plot is a high-performance plotting library for real-time data visualization in the browser using WebGL. Unlike traditional canvas or SVG-based charting libraries, webgl-plot is optimized for streaming and dynamic updates, making it ideal for oscilloscope-style data, biomedical signals, or any application where data updates hundreds of times per second. Its minimal memory footprint and GPU acceleration ensure excellent performance even with tens of thousands of data points, and its simple API allows developers to get started quickly.
    Downloads: 1 This Week
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  • 2
    zag

    zag

    Finite state machines for building accessible design systems and UI

    A collection of framework-agnostic UI components patterns like an accordion, menu, and dialog that can be used to build design systems for React, Vue, and Solid.js. Simple, resilient component logic. Write component logic once and use it anywhere. Built-in adapters that connect machine output to DOM semantics in a WAI-ARIA-compliant way. Component logic is largely JavaScript code and can be consumed in any JS framework. Zag machine APIs are completely headless and unstyled. Use your favorite styling solution and get it matching your design system. Finite state machines for building accessible design systems and UI components. Works with React, Vue and Solid.
    Downloads: 1 This Week
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  • 3
    21st.dev

    21st.dev

    Largest marketplace of shadcn/ui-based components

    21st is an open-source community-driven registry and marketplace for modern React UI components, designed to streamline the discovery, sharing, and installation of reusable interface elements. It functions similarly to a package manager for design engineers, allowing users to browse and install components built with Tailwind CSS and Radix UI directly into their projects. The platform emphasizes minimal, production-ready components that follow modern design and accessibility practices, making it easier to build high-quality interfaces without starting from scratch. Developers can publish their own components to the registry, where they go through a review process before being featured or widely distributed. Each component can include multiple demos, previews, and usage examples, helping users understand how to integrate and customize them. The system also supports TypeScript out of the box, ensuring strong typing and developer experience.
    Downloads: 0 This Week
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  • 4
    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: 0 This Week
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    AWS AppSync JavaScript SDK

    AWS AppSync JavaScript SDK

    JavaScript library files for Offline, Sync, Sigv4.

    AWS AppSync is a fully managed service that makes it easy to develop GraphQL APIs by handling the heavy lifting of securely connecting to data sources like AWS DynamoDB, Lambda, and more. You can use any HTTP or GraphQL client to connect to a GraphQL API on AppSync. For front-end web and mobile development, we recommend using the Amplify clients which are optimized to connect to the AppSync backend. For DynamoDB data sources, use the DataStore category in the Amplify client. It provides the best developer experience and built-in conflict detection and resolution. For non-DynamoDB data sources in scenarios where you have no offline requirements, use the API (GraphQL) category in the Amplify client. For use cases where you are utilizing the Apollo V3 client, use the Apollo Links in this repository to help with authorization and subscriptions.
    Downloads: 0 This Week
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  • 6
    Agenda

    Agenda

    Lightweight job scheduling for Node.js

    A light-weight job scheduling library for Node.js.
    Downloads: 0 This Week
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  • 7
    Amazon Chime SDK React Components

    Amazon Chime SDK React Components

    Chime React Component Library with integrations with the Amazon SDK

    The Amazon Chime SDK makes it easy to add collaborative audio calling, video calling, and screen share features to web applications by using the same infrastructure services that power millions of Amazon Chime online meetings. The Amazon Chime SDK React Component Library supplies client-side state management and reusable UI components for common web interfaces used in audio and video conferencing applications, including: video tile grids, microphone activity indicators, and call controls. All components come with a simple, modern design, and can be used as-is or restyled with a custom theme. In addition to UI components, the library leverages Reacts' state management tools such as Providers and Hooks to connect to the Amazon Chime SDK for JavaScript and pass data to the UI layer, simplifying state synchronization so that developers can concentrate on building engaging experiences.
    Downloads: 0 This Week
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  • 8
    Amazon Chime SDK for JavaScript

    Amazon Chime SDK for JavaScript

    A JavaScript client library for integrating multi-party communications

    The Amazon Chime SDK is a set of real-time communications components that developers can use to quickly add messaging, audio, video, and screen sharing capabilities to their web or mobile applications. Developers can build on AWS's global communications infrastructure to deliver engaging experiences in their applications. For example, they can add video to a health application so patients can consult remotely with doctors on health issues, or create customized audio prompts for integration with the public telephone network. The Amazon Chime SDK for JavaScript works by connecting to meeting session resources that you create in your AWS account. The SDK has everything you need to build custom calling and collaboration experiences in your web application, including methods to configure meeting sessions, list and select audio and video devices, start and stop screen share and screen share viewing, receive callbacks when media events such as volume changes.
    Downloads: 0 This Week
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  • 9
    AngularFire

    AngularFire

    The official Angular library for Firebase

    AngularFire smooths over the rough edges an Angular developer might encounter when implementing the framework-agnostic Firebase JS SDK & aims to provide a more natural developer experience by conforming to Angular conventions. Provide and Inject Firebase services in your components. Stable zones allow proper functionality of service workers, forms, SSR, and pre-rendering. Utilize RxJS rather than callbacks for realtime streams. Integrate with NgRx using AngularFire's action based APIs. AngularFire dynamically imports much of Firebase, reducing time to load your app. Get your Angular application deployed on Firebase Hosting with a single command. Zero-effort Angular Router awareness in Google Analytics. Guard your Angular routes with built-in Firebase Authentication checks.
    Downloads: 0 This Week
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  • 10
    ArkType

    ArkType

    TypeScript's 1:1 validator, optimized from editor to runtime

    ArkType is a high-performance runtime type validation library for TypeScript. It offers a 1:1 validator optimized from editor to runtime, enabling developers to define and enforce complex type constraints seamlessly.​
    Downloads: 0 This Week
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  • 11
    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: 0 This Week
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  • 12
    BSMNT Scrollytelling

    BSMNT Scrollytelling

    A library for creating Scrollytelling animations

    BSMNT Scrollytelling is a library for creating Scrollytelling animations. It's powered by GSAP ScrollTrigger, but abstracts away some things to make it work better with React. At the basement, we've built a bunch of websites that use scroll animations. Over the years, we faced some issues that required solutions that we copy-passed throughout different projects. We decided to build a library to share how we build these with the world.
    Downloads: 0 This Week
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  • 13
    BentoCache

    BentoCache

    Bentocache is a robust multi-tier caching library for Node.js app

    Bentocache is a flexible caching library for Python that supports multiple backends like memory, disk, and Redis. It offers decorators for easy function-level caching and is designed to be lightweight, extensible, and developer-friendly. Bentocache is well-suited for performance optimization in web apps, scripts, and data pipelines.
    Downloads: 0 This Week
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  • 14
    Bili

    Bili

    Bili makes it easier to bundle JavaScript libraries

    Bili makes it easier to bundle JavaScript libraries. Both .js and .ts config files are transpiled by Babel using babel-preset-env and babel-preset-typescript, so feel free to use modern JavaScript features. Bili allows you to add additional Rollup plugins. Automatically transforms JS files using Buble, Babel or TypeScript. Built-in support for CSS, Sass, Stylus, Less and CSS modules. Ridiculously easy to use Rollup plugins if you want. Written in TypeScript, automatically generated API docs. By default Babel transpiles code to ES5, however, you can use Browserslist to specify target environments. Bili supports CSS by default with the help of rollup-plugin-postcss. By default CSS files will be extracted to the same location where the JS is generated but with a .css extension.
    Downloads: 0 This Week
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  • 15
    Bilibili Evolved

    Bilibili Evolved

    Powerful Bilibili Enhanced Script

    Bilibili Evolved is a browser extension designed to enhance the user experience on the Bilibili video platform by adding customization and usability improvements. It provides a wide range of features that modify the interface, improve playback controls, and add additional functionality not available in the original platform. The extension is highly customizable, allowing users to enable or disable features based on their preferences. It also includes performance optimizations and visual enhancements that improve the overall viewing experience. The project is actively maintained and updated to adapt to changes in the platform. It is particularly popular among users who want a more personalized and efficient browsing experience. Overall, Bilibili-Evolved transforms the standard Bilibili interface into a more powerful and user-friendly environment.
    Downloads: 0 This Week
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  • 16
    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: 0 This Week
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  • 17
    BrickCharts Typescript Library
    A comprehensive TypeScript library for managing Billboard and Last.FM charts with powerful data management, visualization support, and easy-to-use APIs.
    Downloads: 0 This Week
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  • 18
    Cacheable

    Cacheable

    A robust, scalable, and maintained set of caching packages

    A JavaScript caching library that provides a unified caching API with support for various backends.
    Downloads: 0 This Week
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  • 19
    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: 0 This Week
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  • 20
    ChartGPU

    ChartGPU

    Beautiful, open source, WebGPU-based charting library

    The ChartGPU repository is an open-source, WebGPU-based charting library written in TypeScript that enables developers to visualize large datasets with high performance and smooth interactivity even when handling millions of data points. By leveraging WebGPU — the next-generation graphics API for the web — ChartGPU offloads rendering work to the GPU, allowing for fast panning, zooming, and real-time updates with minimal latency. This makes the library particularly valuable for data-intensive dashboards, scientific visualizations, and financial charting where performance bottlenecks of traditional canvas or SVG approaches become apparent. It includes support for common chart types like line, bar, scatter, and candlestick plots, and its architecture is designed to scale with both visual complexity and data volume.
    Downloads: 0 This Week
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  • 21
    Compiled

    Compiled

    A familiar and performant compile time CSS-in-JS library for React

    A familiar and performant compile-time CSS-in-JS library for React. Using APIs and behavior you may already be familiar with, write your styles in JavaScript with the full power of CSS, leveraging the language to create expressive & dynamic experiences. Build with your bundler of choice or just Babel, resulting in very performant components that have their styles built ahead of time. Turn on extraction and all components styled in your app and sourced through NPM will have their runtime stripped and styles extracted to an atomic style sheet. Compiled brings distributed styles from the platform, product, and the wider ecosystem together. Add the loader to your Webpack config. Make sure this is defined after other loaders so it runs first. When developing locally its advised to use a bundler instead of Babel directly for improved developer experience.
    Downloads: 0 This Week
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  • 22
    Default composer

    Default composer

    JavaScript library to set default values for nested objects

    A tiny (~500B) JavaScript library that allows you to set default values for nested objects. "default-composer" is a JavaScript library that allows you to set default values for nested objects. The library replaces empty strings/arrays/objects, null, or undefined values in an existing object with the defined default values, which helps simplify programming logic and reduce the amount of code needed to set default values. To use "default-composer", simply import the library and call the defaultComposer() function with the default values object and the original object that you want to set default values for.
    Downloads: 0 This Week
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  • 23
    DiceBear

    DiceBear

    DiceBear is an avatar library for designers and developers

    DiceBear is an avatar library for designers and developers. You can choose between simple intentions and lovely designed characters. And best of all, we provide a simple and free HTTP API that you can use right away! You can start directly with our free HTTP-API or alternatively use the JavaScript library. Most options can be specified using the query string. Note that you have to encode the values.
    Downloads: 0 This Week
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  • 24
    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: 0 This Week
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  • 25
    Elasticsearch Node.js client

    Elasticsearch Node.js client

    Elasticsearch client library for Node.js

    Node.js client for Elasticsearch. The client versioning follows the Elastic Stack versioning, this means that major, minor, and patch releases are done following a precise schedule that often does not coincide with the Node.js release times. Language clients are forward compatible; meaning that clients support communicating with greater or equal minor versions of Elasticsearch. Elasticsearch language clients are only backwards compatible with default distributions and without guarantees made. If you are using multiple versions of Elasticsearch, you need to use multiple versions of the client. In the past, install multiple versions of the same package was not possible, but with npm v6.9, you can do that via aliasing. You will require the packages from your code by using the alias you have defined.
    Downloads: 0 This Week
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