Open Source TypeScript Libraries - Page 8
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TypeScript Libraries
View 74 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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Cortex: Boost Developer Coding SkillsCortex is a simple portal that helps developers work smarter by linking all your tools, setting clear rules, and slashing repetitive tasks. It speeds up onboarding, updates old code, and fixes issues fast. Over 100 big companies use it to save time and get better results.
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AI-powered SAST and AppSec platform that helps companies find and fix vulnerabilities.ZeroPath (YC S24) is an AI-native application security platform that delivers comprehensive code protection beyond traditional SAST. Founded by security engineers from Tesla and Google, ZeroPath combines large language models with advanced program analysis to find and automatically fix vulnerabilities.
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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 -
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Schema.DTS
JSON-LD TypeScript types for Schema vocabulary
The project provides a comprehensive set of TypeScript typings based on the Schema vocabulary, enabling developers to author JSON-LD structured data with strong type safety. It supplies both high-level discriminated unions and helper types to model contexts, graphs, and linked data relationships with clarity and accuracy. Usage examples demonstrate how one can import types like Person, WithContext, or Graph and compose JSON-LD objects in a way that aligns with semantic-web and knowledge-graph practices. The repository also contains a generator tool that can pull ontology definitions and emit TypeScript definitions in bulk, ensuring the typings stay up to date and maintain consistency. It supports scenarios such as nested objects, graphs of entities, and action types with input/output constraints, which makes it suitable for rich metadata authoring and linked-data workflows. While it is maintained by Google, it is not an officially supported Google product. -
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Sera UI
UI component library for React, Next.js, and other JSX frameworks
Sera UI is a modern, open source component library designed for React, Next.js, and other JSX-based frameworks, focused on helping developers build visually polished and highly interactive user interfaces with minimal effort. It is built on top of Tailwind CSS, which enables a utility-first styling approach that makes customization fast, flexible, and consistent across projects. One of its defining characteristics is its copy-and-paste philosophy, allowing developers to directly own and modify component code instead of relying on rigid packages or black-box abstractions. The library includes a growing collection of reusable components such as buttons, forms, modals, tabs, and layout elements, all crafted with attention to design quality and usability. It also integrates animation capabilities through Framer Motion, enabling smooth transitions and micro-interactions that enhance user experience without requiring complex implementation. -
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Shumai
Fast Differentiable Tensor Library in JavaScript & TypeScript with Bun
Shumai is an experimental differentiable tensor library for TypeScript and JavaScript, developed by Facebook Research. It provides a high-performance framework for numerical computing and machine learning within modern JavaScript runtimes. Built on Bun and Flashlight, with ArrayFire as its numerical backend, Shumai brings GPU-accelerated tensor operations, automatic differentiation, and scientific computing tools directly to JavaScript developers. It allows seamless integration of machine learning, deep learning, and custom differentiable programs into web-based or server-side environments without relying on Python frameworks. The library supports matrix operations, gradient computation, and tensor conversions with intuitive APIs and near-native speed, thanks to Bun’s low-overhead FFI bindings. It can automatically leverage GPU acceleration on Linux (via CUDA) and CPU computation on macOS. -
InEight is a leader in construction project controls softwareMinimize risks, gain operational efficiency, control project costs, and make confident, informed decisions. InEight software has your back during every stage of construction, from accurate pre-planning to predictable execution and completion. When project teams collaborate effectively, every decision is backed by precise, authoritative insights.
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Simplex Noise.js
A fast simplex noise implementation in Javascript / Typescript
A JavaScript library for generating Simplex noise, a smoother alternative to Perlin noise for procedural content. -
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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. -
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Starter Applets
Google AI Studio Starter Apps
starter-applets is a collection of minimal, sandboxed example “applets” that demonstrate how to compose Gemini-powered microapps (chat widgets, image generation, workflows) that can be embedded in other applications or used standalone. The applets are structured with a focus on simplicity: each presents a prompt input, minimal UI logic, and inline display of the resulting output or widget (e.g. generated text, images). They are built to illustrate best practices (e.g. safety guards, prompt templates, streaming UI updates) rather than production feature sets. The repo supplies a CLI or script to scaffold new applet templates, letting developers spin up small Gemini-powered components quickly. Each applet includes configuration parameters (API keys, model selection, prompt parameters) in a secure but flexible format. Because applets are meant to be composable, they adopt a modular plugin architecture so you can integrate one into a Next.js, Flutter, or native app with minimal glue. -
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Startup
Startup is free Next.js template for SaaS startups
Startup Next.js is a free, open source website template designed to help developers quickly launch startup, SaaS, or business websites using modern web technologies. It is built with Next.js and Tailwind CSS, combining performance-focused architecture with utility-first styling for rapid development. The template includes all essential pages and sections required for a complete business website, such as landing pages, feature sections, blogs, and contact areas. It emphasizes clean, high-quality design and follows best practices in semantic coding, making it suitable for production use. The template also supports TypeScript, improving maintainability and developer experience in larger projects. Additional features like dark and light mode ensure adaptability to different user preferences and design requirements. Overall, Startup Next.js serves as a practical boilerplate that accelerates the creation of professional websites without requiring developers to design layouts from scratch. -
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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. -
Multi-Entity Cloud Accounting Software for Growing BusinessesBuilt natively on the Microsoft Power Platform (Dynamics 365), Gravity delivers robust multi-entity financial management with seamless integration to Microsoft 365, Power BI, Teams + Copilot — no third-party add-ons required.
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SurveyJS - Form Builder Libraries
Build and Run Dynamic JSON-based Forms and Surveys Right in Your App
SurveyJS is a product suite of open-source JavaScript form libraries that utilize JSON for survey metadata and results. You can use SurveyJS to render web forms and collect responses, or set up a form management system fully integrated in your IT infrastructure, where admin would create and edit multiple forms in a no-code drag-and-drop form builder UI. The form builder comes with a CSS Theme Editor—a set of UI controls for form styling. Any alterations you make, from colors to fonts and layouts, are immediately visible. You can save your customized themes in JSON and reuse them across surveys. You have total freedom as to the backend, as it integrates with any server and database. On the website, you can find integration examples for PHP, ASP.NET Core, and Node.js. You can also convert your forms as editable PDF files, and visualize survey results using interactive charts and tables. The website offers 200+ code examples and tutorials for all popular JS frameworks. -
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Svelvet
A library for building dynamic, infinitely customizable interfaces
Build interactive, node-based UIs and diagrams in Svelte. Svelvet is a lightweight component library for building dynamic, customizable node graphs. Svelvet allows you to easily create intuitive user interfaces and diagrams with pre-built components with node-to-node data flow, seamless zooming and panning, customizable edges and nodes and more. Start mapping out your ideas with our NPM package. Simply provide your node data to the Svelvet component and you're ready to show off your interactive diagram - no extra configuration needed. Svelvet is written in TypeScript and tested with Vitest, Playwright and Svelte Testing Library. Svelvet is maintained by motivated engineers seeking to contribute to the larger Svelte developer community and library ecosystem. -
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Swagger-to-GraphQL
Swagger to GraphQL API adapter
Swagger-to-GraphQL converts your existing Swagger schema to an executable GraphQL schema where resolvers perform HTTP calls to certain real endpoints. It allows you to move your API to GraphQL with nearly zero effort and maintain both REST and GraphQL APIs. Our CLI tool also allows you get the GraphQL schema in Schema Definition Language. This library will fetch your swagger schema, convert it to a GraphQL schema and convert GraphQL parameters to REST parameters. From there you are control of making the actual REST call. This means you can reuse your existing HTTP client, use existing authentication schemes and override any part of the REST call. You can override the REST host, proxy incoming request headers along to your REST backend, add caching etc. -
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Tail-Kit
Components and templates kit fully coded with Tailwind css 3.0
Tail-kit is a free and open-source collection of Tailwind CSS components and templates designed to help developers quickly build modern web interfaces through reusable, copy-ready elements. It provides a large library of over 200 fully coded UI components, covering common patterns such as forms, navigation, cards, and layouts. The project also includes complete templates for dashboards, landing pages, and authentication screens, enabling rapid prototyping and production use. One of its distinguishing features is that it does not modify or extend Tailwind’s core CSS, ensuring compatibility with existing Tailwind workflows. Tail-kit includes a live code editor that allows developers to preview and customize components in real time, improving the development experience. It also supports dark mode out of the box, aligning with modern design trends. -
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Tailgrids
Open-source React UI library built with Tailwind CSS
Tailgrids is an open source UI component library built with Tailwind CSS, designed to accelerate the development of modern web applications by providing a large collection of production-ready components and templates. It offers more than 100 free components along with additional UI blocks and templates, enabling developers to quickly assemble interfaces for dashboards, landing pages, SaaS products, and eCommerce platforms. The library emphasizes a copy-and-paste workflow combined with CLI tooling, allowing developers to integrate components directly into their projects without heavy dependencies. TailGrids components are designed with accessibility, responsiveness, and performance in mind, ensuring compatibility across devices and user needs. It also includes design system resources such as Figma files, which help bridge the gap between design and development workflows. With support for frameworks like React and Next.js, TailGrids is flexible and adaptable to various frontend stacks. -
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Testcontainers node
Supports tests, providing lightweight, throwaway instances of database
Testcontainers is an open source library for providing throwaway, lightweight instances of databases, message brokers, web browsers, or just about anything that can run in a Docker container. No more need for mocks or complicated environment configurations. Define your test dependencies as code, then simply run your tests and containers will be created and then deleted. With support for many languages and testing frameworks, all you need is Docker. Use a containerized instance of your database to test your data access layer code for complete compatibility, without requiring a complex setup on developer machines. Trust that your tests will always start with a known state. Use containerized web browsers, compatible with Selenium, to run automated UI tests. Each test gets a fresh, clean instance of the browser, without having to worry about variations in plugins or required updates. -
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Toolpad Core
Full stack components and low-code builder for dashboards and internal
Toolpad is a self‑hosted, open‑source, low‑code admin/dashboard builder and a collection of full-stack React components tailored for building internal tools and dashboards. Created by the team behind Material‑UI (MUI), it enables rapid development by combining drag‑and‑drop UI construction with tight backend integration. Toolpad Core provides the component library for Next.js/Vite projects, while the deprecated Toolpad Studio offered a visual builder interface. Toolpad Core is a set of high level React components that abstract common concepts such as layout navigation and routing. It aims at helping you build and maintain dashboards and internal tooling faster. It's built on top of Material UI. Toolpad is in its beta stages of development. Feel free to run this application to try it out for your use cases, and share any feedback, bug reports or feature requests that you come across. -
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Typegoose
Define Mongoose models using TypeScript classes
A library that enables developers to use TypeScript classes as MongoDB models, bridging TypeScript with Mongoose for type-safe MongoDB operations. -
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UI Kitten
React Native UI library based on Eva Design System
A React Native framework for creating stunning cross-platform mobile applications. Design system-based, UI Kitten brings your product from an MVP to the final product version. Forever open source and free! UI Kitten is a React Native implementation of the Eva Design System. The framework contains a set of general-purpose UI components styled in a similar way. The most awesome thing about Ui Kitten is that the themes can be changed in the runtime without reloading the application. This way, you may easily focus on business logic, while UI Kitten takes care of the visual appearance of your product. Unlock the true power of the theming system by switching between Light and Dark themes in the runtime. Drive diversity by creating as many themes as needed without changing the source code of the components. Construct stunning and consistent interfaces using atomic components by following the Eva Design System specifications. -
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VSCode-ANTLR4
ANTLR4 language support for Visual Studio Code
vscode-antlr4 is a Visual Studio Code extension that provides comprehensive support for ANTLR4 grammar development. It enhances the editing experience by offering syntax highlighting, code completion, error checking, and visualization tools, making it easier to design and debug grammars within the VS Code environment. The extension supports various target languages and integrates seamlessly with ANTLR4's toolchain. -
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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. -
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Vexip UI
Vue 3 UI library, highly customizability, full TypeScript, performance
Highly customizability, full TypeScript, performance pretty good. This library is using base on vue 3.0 with using composition api, and design and code components in the traditional way by Vue possible, fully TypeScript. Almost all the default value of props for each component can be quickly modified by configuration, for easy customization. And, the writing of component codes pays great attention to lowering the threshold of source code reading, and the style of code is as close to the usual business code habits as possible to avoid dazzling encapsulation. There are currently 70+ components, many you see everywhere are here and are better, and a few may bright your eyes. -
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Vue Class Component
ES / TypeScript decorator for class-style Vue components
Vue Class Component is a library that lets you make your Vue components in class-style syntax. You can define component data and methods in the intuitive and standard class syntax by annotating the class with the @Component decorator. You can simply replace your component definition with a class-style component as it is equivalent with the ordinary options object style of component definition. By defining your component in class-style, you not only change the syntax but also can utilize some ECMAScript language features such as class inheritance and decorators. Vue Class Component also provides a mixins helper for mixin inheritance, and a createDecorator function to create your own decorators easily. -
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Vue DevUI
UI components based on Vue3 and DevUI Design
Vue DevUI is a comprehensive UI component library built specifically for Vue 3, designed to help developers create enterprise-grade applications with consistent design and high usability. It is based on the DevUI design system and provides more than 50 high-quality components that are flexible, easy to use, and optimized for modern frontend development. The library supports TypeScript and integrates seamlessly with tools like Vite and Nuxt3, making it suitable for both small projects and large-scale applications. Vue DevUI includes features such as internationalization and theme customization, allowing developers to tailor the interface to different regions and branding requirements. It also supports on-demand component importing, which helps reduce bundle size and improve performance. The design philosophy focuses on usability and scalability, particularly for complex business interfaces such as dashboards and admin panels. -
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X-Crawl
Flexible Node.js AI-assisted crawler library
A high-performance web crawling and scraping framework for Node.js, designed for large-scale data extraction. -
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XFrames
GPU-accelerated GUI development for Node.js and the browser
xframes is a high-performance library that empowers developers to build native desktop applications using familiar web technologies, specifically Node.js and React, without the overhead of the DOM. xframes serves as a streamlined alternative to Electron, designed for developers looking to maximize performance and efficiency.
