Open Source TypeScript Libraries
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TypeScript Libraries
View 76 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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Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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$300 Free Credits to Build on Google CloudPut your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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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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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. -
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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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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. -
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Formik
Build forms in React
Formik is the world's most popular open-source form library for React and React Native. Formik takes care of the repetitive and annoying stuff, keeping track of values/errors/visited fields, orchestrating validation, and handling submission, so you don't have to. This means you spend less time wiring up state and change handlers and more time focusing on your business logic. No fancy subscriptions or observables under the hood, just plain React state and props. By staying within the core React framework and away from magic, Formik makes debugging, testing, and reasoning about your forms a breeze. If you know React, and you know a bit about forms, you know Formik! Since form state is inherently local and ephemeral, Formik does not use external state management libraries like Redux or MobX. This also makes Formik easy to adopt incrementally and keeps bundle size to a minimum. -
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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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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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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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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. -
MongoDB Atlas runs apps anywhereMongoDB 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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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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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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Floral Notepaper
Lightweight, elegant and modern local sticky note tool
Floral Notepaper is a lightweight local note-taking and sticky-note application built with Tauri 2, React, and Rust. It is designed for users who want a modern, elegant, and fast note tool without the heaviness of a full knowledge-management system. The app supports Markdown editing and preview, making it useful for quick notes, snippets, checklists, and temporary writing. It can be summoned through the system tray or a global shortcut, which helps users capture thoughts without interrupting their current workflow. It also includes a tile mode that keeps notes pinned on the desktop for quick reference. Floral Notepaper is best suited for users who want a clean local writing utility that stays lightweight and easy to access. -
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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. -
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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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nosvelte
An experimental Svelte library for building Nostr apps easily
An experimental Svelte library for building Nostr apps easily. -
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Petdex
The public gallery of animated pet for Codex, Claude Code, OpenCode
Petdex is a community system for creating, sharing, installing, and displaying animated pets for the Codex desktop environment. It combines a public gallery, a command-line installer, and a desktop companion app into one coordinated project. The gallery lets users browse approved pet packs, preview animation states, and download compatible assets. The CLI installs pets directly into the local Codex setup and supports submission workflows for creators. The desktop app can float a pet on the user’s screen and react to coding-agent activity in real time. Petdex is especially useful for users who want to personalize AI coding sessions with lightweight animated characters and a community-driven asset format. -
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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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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. -
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Mediary Scout
Agent-driven media library for your cloud drives
Mediary Scout is an agent-driven media library that acquires movies, television shows, and anime for supported cloud drives. An LLM agent searches connected indexers, selects a result according to quality and subtitle preferences, transfers it, and verifies what arrived. The library tracks season coverage, missing episodes, airing status, and scheduled gap-filling tasks. It supports 115, Quark, and GuangYaPan as separate workspaces without requiring local media downloads. Users can run an Electron desktop app or an always-on Docker deployment with browser-based configuration. A local agent API, live activity queue, notifications, and bring-your-own-model settings support both visual and automated operation. -
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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. -
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Cursor plugins
Cursor plugin specification and official plugins
Cursor Plugins is the official repository for Cursor’s plugin specification and first-party plugin collection. It provides standalone plugin packages for extending agent workflows around development tools, frameworks, and SaaS products. Each plugin lives in its own directory and includes a .cursor-plugin/plugin.json manifest. The collection covers areas such as continual learning, team workflows, code review, documentation, orchestration, and agent compatibility. It also includes tooling for scaffolding and validating new plugins. The repository serves as both a working catalog of official extensions and a reference structure for developers building compatible Cursor plugins. -
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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. -
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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. -
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PowerGlitch
Tiny JS library to glitch anything on the web
PowerGlitch is a standalone library with no external dependencies. It leverages CSS animations to glitch anything on the web, without using a canvas. It weights less than 2kb minified and gzipped. -
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Solid
A declarative JavaScript library for building user interfaces
Solid is a declarative JavaScript library for creating user interfaces. Instead of using a Virtual DOM, it compiles its templates to real DOM nodes and updates them with fine-grained reactions. Declare your state and use it throughout your app, and when a piece of state changes, only the code that depends on it will rerun. Check out our intro video or read on! Fine-grained updates to the real DOM. Declarative data: model your state as a system with reactive primitives. Render-once mental model: your components are regular JavaScript functions that run once to set up your view. Automatic dependency tracking: accessing your reactive state subscribes to it. Small and fast. Simple: learn a few powerful concepts that can be reused, combined, and built on top of. Provides modern framework features like JSX, fragments, Context, Portals, Suspense, streaming SSR, progressive hydration, Error Boundaries and concurrent rendering.
