Runtime Libraries Tools

Best Runtime Libraries tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Best overallTanStack Query100 score License-safe pickTanStack QueryOSI-approved OSS Fastest shippingTanStack Query100 shipping

Use Case Rankings

Ordered by ToolVitals score, health, shipping, confidence, and then adoption as a tie-breaker.

#	Tool	Health	Shipping	Openness	Stars	Score	Status
01	TanStack Query 🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.	100	100	OSI-approved OSS	50k	100	Active
02	Deno A modern runtime for JavaScript and TypeScript.	98	95	OSI-approved OSS	107.9k	98	Active
03	React Email 💌 Build and send emails using React	95	100	OSI-approved OSS	19.5k	98	Active
04	Effect Build production-ready applications in TypeScript	95	100	OSI-approved OSS	15.1k	98	Active
05	DaisyUI Open-source Tailwind CSS component library for building web interfaces.	94	95	OSI-approved OSS	41.9k	96	Active
06	SnapDOM SnapDOM: Next-generation DOM capture to whatever engine — fast, modular, extensible.	90	98	OSI-approved OSS	8k	95	Active
07	Material UI Open-source React component framework implementing Google's Material Design.	93	95	OSI-approved OSS	98.7k	94	Active
08	Compose Multiplatform Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.	95	84	OSI-approved OSS	19.3k	93	Active
09	Chakra UI Open-source React component system for building accessible SaaS interfaces.	93	84	OSI-approved OSS	40.5k	92	Active
10	Supervision We write your reusable computer vision tools. 💜	92	86	OSI-approved OSS	48.5k	92	Active
11	Lyne Components Components for the Lyne design system.	85	98	OSI-approved OSS	66	92	Active
12	Tamagui Open-source React and React Native UI framework with compiler optimizations.	85	95	OSI-approved OSS	14.1k	92	Active
13	XState State machines, statecharts, and actors for complex logic	94	76	OSI-approved OSS	29.9k	90	Active
14	NG-ZORRO Open-source Angular UI component library based on Ant Design.	93	76	OSI-approved OSS	9.2k	89	Active
15	Prisma Next-generation ORM for Node.js & TypeScript \| PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB	91	78	OSI-approved OSS	47.4k	89	Active
16	Yjs Shared data types for building collaborative software	89	80	OSI-approved OSS	22.3k	89	Active
17	xyflow React Flow \| Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely customizable.	87	82	OSI-approved OSS	37.9k	89	Active
18	ZenStack Modern data layer for TypeScript apps - type-safe ORM, built-in access control, automatic query services	88	78	OSI-approved OSS	2.9k	88	Active
19	Loro Make your JSON data collaborative and version-controlled with CRDTs	87	81	OSI-approved OSS	6k	88	Active
20	Slint Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.	85	83	License unknown	23.3k	88	Active
21	Spor Design system for Vy.	85	81	License unknown	31	87	Active
22	Base UI Open-source unstyled UI components for accessible web applications.	84	80	OSI-approved OSS	10.5k	87	Active
23	Regle ✅ Headless form validation library for Vue.js	84	78	OSI-approved OSS	486	86	Active
24	Reka UI Open-source Vue component library for accessible design systems and web apps.	88	69	OSI-approved OSS	6.7k	85	Active
25	Bun Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one	72	71	License unknown	95.1k	79	Warning
26	MJML MJML: the only framework that makes responsive-email easy	77	59	OSI-approved OSS	18.2k	77	Active
27	Grommet Open-source React framework for accessible and responsive application UI.	78	48	OSI-approved OSS	8.4k	74	Warning
28	Zod TypeScript-first schema validation with static type inference	80	41	OSI-approved OSS	43.4k	73	Warning
29	Drizzle ORM Drizzle ORM is an source-visible TypeScript tool tracked for runtime libraries signals, maintenance activity, and public release evidence.	74	42	OSI-approved OSS	35.3k	71	Warning
30	Semi Design Open-source React design system and UI component library.	73	52	OSI-approved OSS	10.2k	69	Warning
31	Naive UI Open-source Vue 3 component library with TypeScript and theme customization.	67	54	OSI-approved OSS	18.5k	69	Warning
32	mdui Material Design 3 UI components using Web Components.	70	34	License unknown	4.5k	65	Warning
33	Arco Design Open-source React UI component library and design system.	65	40	OSI-approved OSS	5.6k	65	Warning
34	HyperUI Open-source Tailwind CSS component collection for web application interfaces.	68	38	OSI-approved OSS	12.2k	64	Warning
35	Iconify Universal icon framework. One syntax for FontAwesome, Material Design Icons, DashIcons, Feather Icons, EmojiOne, Noto Emoji and many other open source icon sets (over 150 icon sets and 200k icons). SVG framework, React, Vue and Svelte components!	67	34	OSI-approved OSS	6.2k	64	Warning
36	Docmentis Udoc Viewer Universal document viewer for the web — open-source, framework-agnostic viewer powered by a built-from-scratch WebAssembly engine for high-fidelity rendering across PDF, DOCX, PPTX, and images.	56	44	OSI-approved OSS	77	62	Warning
37	Cogent Core A free and open source framework for building powerful, fast, elegant 2D and 3D apps that run on macOS, Windows, Linux, iOS, Android, and web with a single Go codebase, allowing you to Code Once, Run Everywhere.	67	37	OSI-approved OSS	2.3k	61	Warning
38	PrimeReact Open-source React UI component library for application interfaces.	57	33	OSI-approved OSS	8.3k	60	Warning
39	Flowbite Open-source UI component framework built on Tailwind CSS.	51	27	OSI-approved OSS	9.3k	56	Warning
40	Vidstack UI components and hooks for building video/audio players on the web. Robust, customizable, and accessible. Modern alternative to JW Player and Video.js.	49	25	OSI-approved OSS	3.6k	54	Critical
41	Sentinel A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)	53	20	OSI-approved OSS	23.1k	52	Warning
42	Effector Business logic with ease ☄️	62	7	OSI-approved OSS	4.8k	51	Warning
43	Theme UI Open-source library for building themeable React applications.	42	4	OSI-approved OSS	5.4k	43	Critical
44	mraa Linux Library for low speed IO Communication in C with bindings for C++, Python, Node.js & Java. Supports generic io platforms, as well as Intel Edison, Intel Joule, Raspberry Pi and many more.	46	0	OSI-approved OSS	1.4k	38	Critical
45	Vee Validate ✅ Painless Vue forms	38	0	OSI-approved OSS	11.3k	38	Critical
46	Multi-Tenant Run multiple websites using the same Laravel installation while keeping tenant specific data separated for fully independent multi-domain setups, previously github.com/hyn/multi-tenant	35	0	OSI-approved OSS	2.6k	37	Critical
47	Formik Build forms in React, without the tears 😭	33	0	OSI-approved OSS	34.3k	37	Critical
48	NativeBase Open-source mobile-first component framework for React Native and web.	38	0	OSI-approved OSS	20.4k	36	Critical
49	Rebass Open-source React primitive UI components built with Styled System.	31	0	OSI-approved OSS	7.9k	36	Critical
50	Redux Form A Higher Order Component using react-redux to keep form state in a Redux store	33	0	OSI-approved OSS	12.5k	35	Critical
51	Eureka Elegant iOS form builder in Swift	35	0	OSI-approved OSS	11.8k	34	Critical
52	SheetJS 📗 SheetJS Spreadsheet Data Toolkit -- New home https://git.sheetjs.com/SheetJS/sheetjs	33	0	OSI-approved OSS	36.3k	33	Critical
53	Flutter Chat UI Free and open-source chat SDK. Build fast, real-time apps and generative AI agents with a high-performance, customizable, cross-platform UI.	32	0	OSI-approved OSS	2.3k	32	Critical
54	chat-ui-kit-react Build your own chat UI with React components in few minutes. Chat UI Kit from chatscope is an open source UI toolkit for developing web chat applications.	31	0	OSI-approved OSS	1.8k	32	Critical
55	React95 Open-source React component library for Windows 95 style interfaces.	31	0	OSI-approved OSS	7.3k	32	Critical
56	FrankenPHP Demo app for FrankenPHP	24	0	License unknown	206	32	Critical
57	Semantic UI Open-source UI component framework based on natural-language class names.	33	0	OSI-approved OSS	51k	31	Critical
58	Vue Design System Open-source tool for building UI design systems with Vue.js.	31	0	OSI-approved OSS	2.2k	31	Critical

Evidence Watch

Tracked tools with useful public signals but no verdict score yet.

21st.dev

The NPM for Design Engineers

93 confidence

Add to Calendar Button

Tool for creating embeddable add-to-calendar buttons.

100 confidence

Aksel

Open design system and component library.

97 confidence

AppBase

Search UI components for React and Vue

98 confidence

Ark UI

Open-source accessible UI components for React, Vue, Solid, and Svelte.

100 confidence

BlockSuite

🧩 Content editing tech stack for the web - BlockSuite is a toolkit for building editors and collaborative applications.

92 confidence

DivKit

Open-source server-driven UI framework for mobile app interfaces.

98 confidence

Docx Editor

Open-source WYSIWYG .docx editor for React with canonical OOXML, tracked changes, and real-time collaboration.

100 confidence

Ebean ORM

Ebean ORM is an source-visible Java tool tracked for runtime libraries signals, maintenance activity, and public release evidence.

89 confidence

Ergo

Actor-based framework for event-driven architecture in Go.

86 confidence

excelize

Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets

100 confidence

Final Form

Framework-agnostic form state management framework.

100 confidence

flowbite-svelte

Official Svelte components built for Flowbite and Tailwind CSS

100 confidence

HyperFormula

Headless spreadsheet calculation engine for business web apps.

100 confidence

iLamy Calendar

Open source full calendar alternative for React with scheduling and recurring events.

94 confidence

JSON Forms

JSON Schema-based form framework for React, Angular, and Vue.

100 confidence

Material Web

Material Design Web Components

94 confidence

ngx-formly

📝 JSON powered / Dynamic forms for Angular

88 confidence

Open-source PDF generation library built with TypeScript and React. Features a WYSIWYG template designer, PDF viewer, and powerful generation capabilities. Create custom PDFs effortlessly in both browser and Node.js environments.

100 confidence

q5.js

Beginner friendly graphics powered by WebGPU, optimized for interactive art!

100 confidence

Raaghu React

Raaghu Design System – React is an open-source design system for modern Web and Power Apps applications. Built for the web and extendable to Microsoft’s Power Apps Component Framework (PCF), it offers reusable components

100 confidence

React Hook Form

📋 React Hooks for form state management and validation (Web + React Native)

100 confidence

React Jsonschema Form

A React component for building Web forms from JSON Schema.

95 confidence

React Native Elements

Open-source cross-platform React Native UI toolkit.

100 confidence

remote-store

Write file storage code once. Run it against local files, S3, SFTP, or Azure.

100 confidence

Runmat

Open-source runtime for math with CPU and GPU execution, CLI install, and browser access.

100 confidence

Skeleton

Skeleton is an adaptive design system powered by Tailwind CSS.

100 confidence

Slate

A completely customizable framework for building rich text editors. (Currently in beta.)

100 confidence

sveltekit-superforms

Making SvelteKit forms a pleasure to use!

100 confidence

tenancy

Automatic multi-tenancy for Laravel. No code changes needed.

90 confidence

Textual

The lean application framework for Python. Build sophisticated user interfaces with a simple Python API. Run your apps in the terminal and a web browser.

100 confidence