Open Source TypeScript Libraries
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TypeScript Libraries
View 75 business solutionsBrowse 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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SponsorBlock
Skip YouTube video sponsors (browser extension)
SponsorBlock is an open-source crowdsourced browser extension and open API for skipping sponsor segments in YouTube videos. Users submit when a sponsor happens from the extension, and the extension automatically skips sponsors it knows about using a privacy-preserving query system. It also supports skipping other categories, such as intros, outros, and reminders to subscribe, and skipping to the point with highlights. The extension also features an upvote/downvote system with a weighted random-based distribution algorithm. Once one person submits this information, everyone else with this extension will skip right over the sponsored segment. SponsorBlock is a crowdsourced browser extension that let's anyone submit the start and end time's of sponsored segments of YouTube videos. -
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OmniTools
Self-hosted collection of powerful web-based tools for everyday tasks
OmniTools is a self-hosted web application that bundles a large collection of everyday utilities into a single clean interface you can run on your own infrastructure. It’s designed to replace the random assortment of “free online tools” people use for quick tasks, while avoiding ads, tracking, and the need to upload sensitive files to unknown servers. A key design choice is that file processing happens entirely on the client side, meaning your data stays in your browser instead of being sent to the backend. The tool catalog spans both technical and non-technical needs, including image, video, audio, PDF, text, date/time, math, and data format utilities like JSON/CSV/XML helpers. It’s also packaged for straightforward self-hosting, with a lightweight Docker image and simple run commands, so it can be deployed quickly on a homelab or internal network. -
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HLS.js
HLS.js is a JavaScript library that plays HLS in browsers
HLS.js is a JavaScript library that implements an HTTP Live Streaming client. It relies on HTML5 video and MediaSource Extensions for playback. It works by transmuxing MPEG-2 Transport Stream and AAC/MP3 streams into ISO BMFF (MP4) fragments. Transmuxing is performed asynchronously using a Web Worker when available in the browser. HLS.js also supports HLS + fmp4, as announced during WWDC2016. HLS.js works directly on top of a standard HTML<video> element. HLS.js is written in ECMAScript6 (*.js) and TypeScript (*.ts) (strongly typed superset of ES6), and transpiled in ECMAScript5 using Babel and the TypeScript compiler. Webpack is used to build the distro bundle and serve the local development environment. -
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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/ -
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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. -
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Seerr
Open-source media request and discovery manager for Jellyfin
Seerr is a free, open-source web application for managing and fulfilling user requests for media content in your personal media server ecosystem. It integrates seamlessly with popular media servers like Jellyfin, Plex, and Emby, allowing users to browse catalogs and make automated requests for items they want added to the library. Seerr also integrates with backend automation tools such as Sonarr, Radarr, and others to automatically handle content delivery once a request is approved. The project emerged from a merge of similar tools to create a single unified codebase focused on elegant media discovery, streamlined request flows, and a modern UI. It’s designed for both home users and self-hosters who want an easier way to coordinate media requests among family, friends, or community members. Seerr’s architecture supports plugins, themes, and APIs for extensibility, and the community continues to build add-ons and mobile extensions. -
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react-native-device-info
Device Information for React Native iOS and Android
A React Native library that provides device and system information for mobile applications, enabling app customization based on device-specific details. -
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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. -
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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. -
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assistant-ui
Typescript/React Library for AI Chat
The assistant-ui project is an open-source TypeScript and React library designed to build production-grade AI chat interfaces quickly and efficiently. It provides a set of composable UI primitives that allow developers to construct fully customized conversational experiences without relying on monolithic components. The library handles complex behaviors such as streaming responses, auto-scrolling, accessibility, and real-time updates out of the box. It is designed to integrate with a wide range of AI backends and providers, making it highly flexible for different architectures. The system also supports advanced features like tool rendering, attachments, and interactive UI elements, enabling rich user experiences. With strong TypeScript support and developer-friendly defaults, it accelerates the process of building and deploying AI-powered applications. Overall, assistant-ui serves as a comprehensive frontend foundation for modern conversational AI systems. -
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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. -
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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. -
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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. -
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Flowbite
The most popular and open-source library of Tailwind CSS components
Build websites even faster with components on top of Tailwind CSS. Start developing with an open-source library of over 600+ UI components, sections, and pages built with the utility classes from Tailwind CSS and designed in Figma. You can now also get started with open-source component libraries built for frameworks such as React, Vue.js, Svelte and Angular. Explore the whole collection of over 58 open-source UI components and interactive elements built with the utility classes from Tailwind CSS and Flowbite. Get started with over 310+ block sections coded with Tailwind CSS and Flowbite to build high-quality website pages. Get started with the most advanced Figma Design System built for Tailwind CSS and Figma and upgrade your designer toolkit to the next level. Learn more about the Pro version of Flowbite which includes a Figma design kit based on the utility classes from Tailwind CSS and hundreds of coded pages and components including application UI. -
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Markdown to PDF
Hackable CLI tool for converting Markdown files to PDF using Node.js
A simple and hackable CLI tool for converting markdown to pdf. It uses Marked to convert markdown to HTML and Puppeteer (headless Chromium) to further convert the HTML to PDF. It also uses highlight.js for code highlighting. The whole source code of this tool is only ~250 lines of JS ~500 lines of Typescript and ~100 lines of CSS, so it is easy to clone and customize. -
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TikTok Live Connector
Node.js library to receive live stream events
TikTok Live Connector is a Node.js library for receiving real-time TikTok LIVE events from TikTok’s internal Webcast push service. It can connect to a live stream by username and listen for events such as comments, gifts, member joins, follows, shares, questions, likes, subscriptions, viewer updates, and battles. The library does not require user credentials for basic live chat connection, which makes it useful for overlays, chat readers, bots, dashboards, alerts, and livestream interaction tools. It is a reverse-engineering project rather than an official TikTok production API, so developers should expect platform changes and occasional breakage. Recent development has focused on a more modular TypeScript architecture and expanded event schema support. It is best used for experiments, prototypes, creator tools, and non-critical realtime TikTok LIVE integrations. -
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Xyflow
Powerful open source libraries for building node-based UIs with React
xyflow provides powerful, open‑source libraries—such as React Flow and Svelte Flow—for building node‑based user interfaces. These components are designed to be ready out‑of‑the‑box and infinitely customizable for constructing interactive diagrams, workflows, and editor UIs. Create PRs for new features, updates and fixes (with a changeset if relevant for changelog). Merge into main. Changset creates a PR that bumps all packages based on the changesets. Merge changeset PR if you want to release to Github and npm. -
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Countries, Languages & Continents data
Countries, Languages & Continents data (capital and currency)
Continents & countries (with languages, capital and currency, native name, calling codes). Continents & countries: ISO 3166-1 alpha-2 code, name, ISO 639-1 language, capital and currency, native name, calling codes. Lists are available in JSON, CSV and SQL formats. Also, contains separate JSON files with additional country Emoji flags data. This version changes a lot in the data structures and placement of the files. So, if your projects depend on the old structure — specify previous versions, <2.0.0. Country item languages field is an Array in JSON files to easily count and match items with a Language item. But currency and phone calling codes may be a comma-separated String. Languages list only contains languages used in Countries data. Full list of known languages is exported as languagesAll from ./dist/languages.all.json. -
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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. -
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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. -
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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. -
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Iconoir
An open source icons library with 1K+ icons
Iconoir is an open-source library with 1000+ unique SVG icons, designed on a 24x24 pixels grid. No premium icons, no email sign-up, no newsletters. A React library is available to install under the name iconoir-react. A Flutter library is available to install under the name iconoir_flutter. Iconoir is happily part of Framer now. To start using the icons, on the top menu, Insert > Graphics > Iconoir. You can switch between icons from the right sidebar in the editor. The class must always be "iconoir-" and then the name of the icon. The icons are display: inline-block and default to the current font size. You can control this by adjusting the ::before styles of the element. -
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Intent UI
Intent UI is a chill set of React components
Intent UI is a modern React component library focused on accessibility, customization, and developer ownership, built on top of React Aria Components and styled with Tailwind CSS. It follows a copy-and-paste philosophy similar to shadcn/ui, allowing developers to directly integrate and modify components within their own codebases instead of relying on rigid dependencies. The library emphasizes accessible design by leveraging ARIA standards and best practices, ensuring that components work well with keyboard navigation and assistive technologies. It includes a wide range of components such as overlays, forms, visualizations, and layout elements, making it suitable for building full web applications. Intent UI also provides templates, blocks, and starter kits that accelerate development and reduce setup time for new projects. Its integration with modern frameworks like Next.js, Vite, and TanStack Router further enhances its flexibility and ease of adoption. -
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Ionicons
Hand-crafted icons built by Ionic for web apps
Premium designed icons for use in web, iOS, Android, and desktop apps. Support for SVG and web font. Completely open source, MIT licensed and built by Ionic. Ionicons is a completely open-source icon set with 1,300 icons crafted for web, iOS, Android, and desktop apps. Ionicons was made for Ionic Framework, a cross-platform hybrid and Progressive Web App framework. The Ionicons Web Component is an easy and performant way to use Ionicons in your app. The component will dynamically load an SVG for each icon, so your app is only requesting the icons that you need. Also note that only visible icons are loaded, and icons which are "below the fold" and hidden from the user's view do not make fetch requests for the svg resource. If you're using Ionic Framework, Ionicons is packaged by default, so no installation is necessary. -
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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.
