Front-End JavaScript Reference

The State of JS Libraries
in 2025

80+ libraries researched across 5 categories. All data is approximately mid-2025. Verify live stats at npmjs.com before making decisions.

By the Numbers

📦

80+

Libraries Covered

🗂️

Compilers Over Runtimes

React Compiler, Svelte 5 Runes, Vue Vapor, Million.js — compile-time optimization eliminates manual useMemo/useCallback. The framework does the work, not the developer.

Signals Everywhere

Angular Signals, Solid Signals, Svelte Runes, Vue Reactivity — fine-grained reactive primitives now dominate every major framework as an alternative to VDOM diffing.

Zero-Runtime CSS Wins

Runtime CSS-in-JS (Emotion, styled-components) is incompatible with React Server Components. Tailwind v4, vanilla-extract, Panda CSS, StyleX all generate static CSS at build time.

The Rust Toolchain is Complete

Turbopack, Rolldown, Rspack, Parcel core, Biome, Oxc — the entire build pipeline has been rewritten in Rust/Go. JS tools persist through ecosystem lock-in only.

Vite is the Platform

Vite v6 Environment API makes it the connective tissue that frameworks build on — not just a dev server. Rolldown will give it a fully Rust-native pipeline end-to-end.

Server/Client Blur

RSC, Server Actions, Astro Actions, TanStack Server Functions, Qwik resumability — the server/client boundary is managed by frameworks, not manually by developers.

The shadcn/ui Effect

Copy-paste over npm install went mainstream. AI coding tools (Cursor, v0.dev, Copilot) accelerate this — they generate components that the team owns and can modify freely.

Temporal API is Inevitable

Every date library author points to it as the successor to Date. Native V8/SpiderMonkey implementations were in active progress. Polyfill is production-ready today.

GSAP Went Free

The biggest animation story of 2024 — ScrollTrigger, SplitText, MorphSVG all became free for commercial use. GSAP 4.0 in beta. npm downloads surged significantly.

TypeScript Type Safety as Moat

TanStack Router/Form, tRPC, Conform — the new generation competes on how deeply types flow from database to UI without codegen. Zod at 30M downloads/week tells the story.

UI / Component Frameworks

React

v19.1

Meta's UI library. v19 brings the React Compiler (auto-memoization), Actions for async mutations, and Server Actions stable.

★ 230K ~27M/wk Active

Vue

v3.5

v3.5 "Tengen Toppa" adds reactive props destructure, lazy hydration strategies, useTemplateRef(), 56% memory reduction.

★ 47K ~4.5M/wk Active

Svelte

Complete Runes rewrite. $state(), $derived(), $effect(), $props() replace implicit reactivity. Runes work in .svelte.ts files.

★ 80K ~1.3M/wk Active

Angular

v19

Signals stable, signal-based component APIs (input(), output()), new @if/@for control flow, deferrable views (@defer), Vite-powered dev server.

★ 96K ~3.8M/wk Active

Solid.js

v1.9

JSX with fine-grained DOM reactivity — no virtual DOM, components run once. Near-perfect benchmark scores. SolidStart 1.0 meta-framework stable.

★ 32K ~250K/wk Active

Lit

v3.2

Builds on native Web Components. ~5KB, framework-agnostic. v3 targets modern browsers, adds @lit/context, @lit/task, TC39 standard decorators.

★ 18K ~1.7M/wk Active

htmx

v2.0

Extends HTML with hx-get, hx-post, hx-swap. Server sends HTML fragments. Zero build step. Perfect for Django, Rails, Laravel backends.

★ 40K ~450K/wk Active

Alpine.js

v3.14

Declarative reactivity via HTML attributes. ~15KB, no build step. x-data, x-bind, x-on, x-teleport. Natural Laravel/Livewire pairing.

★ 28K ~375K/wk Active

Qwik

v1.9

Resumability instead of hydration. Serializes app state into HTML, resumes on interaction. Near-instant TTI regardless of app size. QwikCity for routing/SSR.

★ 21K ~125K/wk Active

React 19 — Key Changes

🤖 React Compiler

Auto-memoizes components and values at build time
useMemo, useCallback, memo() largely no longer needed
Babel/Vite plugin rewrites your code at compile time
Opt-in per file or globally

⚡ Actions API

useActionState — manage async mutation state
useFormStatus — pending/error/data from parent form
useOptimistic — optimistic UI without libraries
Server Actions stable — call server functions from client components

🪝 New Hooks & APIs

use(promise) — read a Promise inside render with Suspense
ref as a plain prop — no more forwardRef wrapper
Native <title>, <meta>, <link> hoisting — no react-helmet
preload(), preinit() resource hint APIs

🌊 Svelte 5 Runes

$state() — explicit reactive state
$derived() — computed values
$effect() — side effects
$props() / $bindable() — replaces export let
Runes work in .svelte.js — reactive logic outside components
{#snippet} / {@render} replaces slots

Meta-Frameworks

Framework	Version	Stars	Downloads/wk	Stack	Best For
Next.js	15.x	~127K	~8.5M	React	RSC, SSR/SSG, e-commerce, Vercel
React Router v7	7.1.x	~53K	~15M	React	Remix merger — library + framework modes
Nuxt 3	3.12.x	~55K	~1.7M	Vue	Vue SSR/SSG, full-stack Vue
Astro	5.x	~46K	~900K	Any	Content sites, islands architecture
SvelteKit	2.x	~19K	~650K	Svelte	Full-stack Svelte, flexible deploy
TanStack Start	1.x	~6K	~100K	React	100% type-safe full-stack React
Qwik (QwikCity)	1.9.x	~21K	~125K	Qwik	Resumability, instant TTI, e-commerce

Meta-Framework Highlights

⚡ Next.js 15

Turbopack dev stable — ~40–60% faster than Webpack
fetch() uncached by default (reversed v14 behavior)
after() — run code after response sent
connection() — explicit dynamic rendering opt-in
Full React 19 support

🌌 Astro 5

Content Layer API — loader-based, replaces Content Collections
Server Islands — static pages with server-rendered slots
Astro DB — first-party LibSQL/Turso database
Astro Actions — type-safe server functions with Zod
astro:env — typed environment variables

🔀 React Router v7

Remix v2 merged directly into React Router
Library mode (SPA) + Framework mode (SSR) in one package
Auto-generated TypeScript types for route data
SPA mode — client-only with file-based routing
Pre-rendering (SSG) via prerender config

Emerging Frameworks

Waku

0.21.x

Minimal RSC framework by the creator of Jotai/Zustand. Vite-based, learning-focused RSC primitive exposure.

★ 5KReact RSC

Analog.js

1.x

Angular's answer to Next.js — file-based routing, SSR/SSG, Vite-based, MDX support. Fills Angular's meta-framework gap.

★ 3KAngular

Million.js

3.x

Block-based VDOM drop-in for React. Compiler plugin rewrites components for 70% faster renders in benchmarks.

★ 16KReact Optimizer

Hono + HonoX

4.x

Ultra-fast edge-first web framework. HonoX adds file-based routing + JSX SSR. Cloudflare Workers / Bun native.

★ 20KEdge

ℹ️

The shadcn/ui EffectCopy-paste over npm install went mainstream. Libraries now compete on code quality and composability — developers own the code and modify it freely. AI tools like v0.dev and Cursor accelerate this model.

React — Styled Libraries

shadcn/ui

CLI v2.x

Copy-paste components built on Radix UI + Tailwind. You own the code. Registry system for community components.

★ 75K Copy-paste (no npm) Active

Material UI

v6.x

Google Material Design 3. v6 introduced Pigment CSS (zero-runtime) to replace Emotion. MUI X for advanced data grid, charts.

★ 93K ~5M/wk Active

Ant Design

v5.x

Enterprise-grade 80+ components. Design tokens with CSS variables. Strong in data-heavy admin UIs. Dominant in Asian enterprise market.

★ 92K ~1.8M/wk Active

Mantine

v7.x

100+ components + 50+ hooks. Dropped Emotion in v7 for CSS modules. Built-in form handling, notifications. Excellent DX.

★ 27K ~700K/wk Active

Chakra UI

v3.x

Rebuilt on Ark UI (state machine headless layer) + Panda CSS. Snippet system like shadcn/ui. v3 was a near-complete rewrite.

★ 38K ~800K/wk Active

PrimeReact

v10.x

90+ components including complex DataTable, TreeTable. Multiple themes + Theme Designer. PrimeTek ecosystem (Vue, Angular versions available).

★ 6.5K ~400K/wk Active

HeroUI

v2.x

Rebranded from NextUI (early 2025). Tailwind + React Aria for accessibility. Framer Motion animations built-in. Polished aesthetic for SaaS.

★ 22K ~350K/wk Active

React — Headless / Primitives

Radix UI

v1–2.x

The invisible backbone of shadcn/ui and dozens of other libraries. WAI-ARIA compliant. 20M+ combined downloads/week — understated influence.

★ 15K ~20M+/wk total Active

Headless UI

v2.x

By the Tailwind Labs team. Unstyled accessible components — Dialog, Combobox, Listbox, Menu, Popover, Tabs. Natural Tailwind CSS pairing.

★ 26K ~2M/wk Active

React Aria (Adobe)

v1.x

Gold standard for accessibility. Built-in i18n for 100+ locales, virtualization, WCAG 2.2 compliant. Powers Adobe's own products.

★ 12.5K ~2.5M/wk Active

TanStack Table

v8.x

Headless, framework-agnostic table. Sorting, filtering, grouping, pagination, virtualization. React, Vue, Solid, Svelte, Angular adapters.

★ 26K ~4.5M/wk Active

Ark UI

v3.x

State machine-based headless components (Zag.js). Powers Chakra UI v3. React, Vue, Solid adapters. 45+ components including Calendar, Color Picker.

★ 4K ~250K/wk Active

Vue Component Libraries

Library	Version	Stars	Weekly DLs	Notes
Vuetify	v3.x	~40K	~800K	Material Design, most complete Vue UI lib
PrimeVue	v4.x	~10K	~550K	Unstyled mode = competitive headless option
Element Plus	v2.x	~24K	~550K	Dominant in Chinese enterprise Vue apps
Quasar	v2.x	~26K	~300K	Cross-platform: web + mobile + Electron

Framework-Agnostic & CSS Kits

DaisyUI

v4.x

Tailwind plugin adding semantic component classes. 50+ components, 30+ built-in themes. Zero JS — pure CSS. Works with any framework.

★ 35K ~1.8M/wk Active

Flowbite

v2.x

Tailwind components with React/Vue/Svelte/Angular variants. Figma design kit. Flowbite Blocks: 400+ page sections. Pro tier available.

★ 8K ~350K/wk Active

🔥 Trending — Animation-Heavy Components

✨ Aceternity UI

Framer Motion + Tailwind + shadcn — copy-paste
Viral on social — hero sections, cards, backgrounds
Best for: marketing landing pages
Not utility — pure "wow factor" components

🪄 Magic UI

Animation-heavy shadcn registry extension
Animated counters, marquees, gradients, particles
Built on Framer Motion + Tailwind
Best for: SaaS product landing pages

📋 Origin UI

shadcn/ui extension focused on form components
Fills gaps in shadcn's form coverage
Radix UI + Tailwind CSS
Fast growing: 5K+ stars by mid-2025

⚠️

Runtime CSS-in-JS is in declineEmotion and styled-components are incompatible with React Server Components (RSC) — they require context and runtime injection. Both are in maintenance mode. For new projects, use Tailwind v4, vanilla-extract, or Panda CSS.

Styling Libraries

Tailwind CSS

v4.0

Complete rewrite using Oxide (Rust) engine. CSS-first config via @theme block. Zero config files. Lightning CSS bundled. Vite plugin first-class.

★ 84K ~11M/wk Active

vanilla-extract

~1.16

Zero-runtime CSS-in-TypeScript. Write styles in .css.ts files — extracted at build time. Full type safety, scoped class names. Sprinkles for atomic utilities.

★ 10K ~1.3M/wk Active

UnoCSS

~0.63

Atomic CSS engine with preset system. Attributify mode, pure CSS icons. Tailwind v4 compat preset added in 2025. Popular in Vue/Nuxt ecosystem.

★ 16K ~700K/wk Active

Panda CSS

~0.47

Build-time CSS with design tokens. Type-safe css(), cva(), styled() APIs compile to zero-runtime atomic CSS. Works with any framework.

★ 4.5K ~175K/wk Active

StyleX

~0.9

Meta's zero-runtime atomic CSS-in-JS. Compile-time extraction. Deterministic style merging (later styles always win). Powers facebook.com & instagram.com.

★ 8.5K ~70K/wk Active

Emotion

11.13.x

Runtime CSS-in-JS. High download count is driven by MUI dependency, not organic new adoption. RSC incompatible. In maintenance mode.

★ 17.5K ~11M/wk Maintenance

styled-components

6.1.x

Template literal CSS-in-JS. High downloads from legacy codebases. RSC incompatible due to runtime context injection. No major v7 planned.

★ 40K ~9M/wk Maintenance

Stitches

1.2.8

Last release was 2022. WorkOS team has stated it is not being maintained. Migrate to Panda CSS or vanilla-extract for new projects.

★ 7.8K ~230K/wk ⚠️ Unmaintained

Tailwind v4 — What Changed

🦀 Oxide Engine (Rust)

Complete rewrite using Rust — dramatically faster builds
Automatic content detection — no content array in config
Lightning CSS bundled for transforms and vendor prefixes
@import inlining built in, no separate PostCSS config

🎨 CSS-First Configuration

Design tokens live in @theme { } block in CSS
tailwind.config.js no longer needed for most cases
All tokens exposed as CSS custom properties by default
@tailwindcss/vite plugin ships as first-class integration

Animation Libraries

Motion (Framer)

v11.x

Rebranded from framer-motion to motion. Sub-paths: motion/react, motion/vue, motion/mini. Layout animations, scroll-linked, gestures.

★ 23K ~4.5M/wk Active

GSAP 3

3.12.x

Industry-standard animation engine. All plugins (ScrollTrigger, SplitText, MorphSVG, Flip) went FREE in 2024. GSAP 4.0 in beta with modernized API.

★ 20K ~1.7M/wk 🆓 Now Free

Anime.js

v4.0

Full ESM rewrite. New: scroll animations, Draggable, Timer/Ticker. Scopes for managing animations. v3 → v4 has breaking changes but is far more capable.

★ 50K ~600K/wk Active

Lottie / dotLottie

5.12.x

Renders After Effects animations. dotLottie (new binary format) is ~10x smaller than JSON. WASM-powered renderer in @lottiefiles/dotlottie-web.

★ 30K ~2.8M/wk Active

React Spring

9.7.x

Physics-based spring animations. useSpring, useSprings, useTrail, useTransition. React Native + React Three Fiber support.

★ 28K ~700K/wk Active

AutoAnimate

0.8.x

One-line add/remove/move animations. Attach a single ref to a parent — children animate automatically. ~2KB. React, Vue, Solid, Vanilla.

★ 13K ~175K/wk Active

Theatre.js

0.7.x

Visual keyframe editor (@theatre/studio) for complex orchestrated animations. Integrates with Three.js/R3F. Best for creative/3D web experiences.

★ 11K ~20K/wk Active

Animation Comparison

Library	Version	Stars	Weekly DLs	Best For	Framework
Motion (Framer)	11.x	~23K	~4.5M	React UI animations, layout, gestures	React / Vue
GSAP 3	3.12.x	~20K	~1.7M	Complex timelines, scroll effects (free!)	Any
Anime.js	4.0.x	~50K	~600K	DOM/SVG/CSS animation, v4 scroll+drag	Any
Lottie	5.12.x	~30K	~2.8M	After Effects renders, dotLottie format	Any
React Spring	9.7.x	~28K	~700K	Physics springs, React Native, R3F	React
AutoAnimate	0.8.x	~13K	~175K	Zero-config list/presence animations	Any
Theatre.js	0.7.x	~11K	~20K	Visual keyframe editor, 3D/WebGL	Any

🚫

Recoil is effectively deadMeta has stopped active development. No v1.0 was ever released. Roadmap is stalled. Migrate to Jotai — it has the same atomic mental model but is actively maintained with a smaller footprint.

State Management

Redux Toolkit

2.5.x

Most-downloaded by volume (enterprise/legacy). createSlice, RTK Query, combineSlices for code-splitting, listener middleware. Immer v10 internally.

★ 10.5K ~10M/wk Active

Zustand

5.0.x

Best DX for new React projects. No provider needed. v5: requires React 18+, cleaner ESM/CJS, useShallow moved to separate import, improved slice pattern.

★ 47K ~5.5M/wk Active

Pinia

2.3.x

Official Vue state manager (replaced Vuex). Options + Composition API stores. Pinia 3 (preview) targets Vue Vapor — no virtual DOM, granular reactivity.

★ 13K ~3M/wk Active

Jotai

2.10.x

Atomic model — the active Recoil successor. ~3KB core. useAtomValue / useSetAtom for fine-grained re-renders. Rich utils ecosystem. Concurrent-safe.

★ 19K ~1.7M/wk Active

MobX

6.13.x

Observable-based reactive state. makeAutoObservable is idiomatic in v6. Proxy-based, no decorators required. mobx-react-lite for React. Great for domain models.

★ 27K ~1.7M/wk Active

XState

5.18.x

State machines + actor model. v5 is a major rewrite — actor-centric, setup() API, dramatically better TypeScript. Stately Studio visual editor.

★ 27K ~1.7M/wk Active

Valtio

2.1.x

Proxy-based mutable state — Immer-like ergonomics without Immer. useSnapshot for React. ~3KB. v2 requires React 18+, improved Map/Set/Date handling.

★ 9K ~800K/wk Active

Legend State

3.0.x

Observable + fine-grained reactivity. v3 rebuilt sync/persistence API (synced, syncedCrud). Supabase, Firebase, REST integrations. Best offline-first option.

★ 4K ~200K/wk Active

Nanostores

0.11.x

Framework-agnostic, ~265 bytes/store. atom, map, computed. Astro's official recommendation for cross-framework shared state in island architectures.

★ 4.5K ~325K/wk Active

Recoil

0.7.7

Meta's atomic state library — development has stopped. No v1.0 released. Community has migrated to Jotai. Do not start new projects with Recoil.

★ 19K ~500K/wk ⚠️ Dead

Data Fetching & Async

TanStack Query

v5.65

The standard for async server state. React, Vue, Solid, Svelte, Angular. v5 breaking: callbacks removed from useQuery, 'pending' replaces 'loading', useSuspenseQuery dedicated hook.

★ 43K ~7M/wk Active

SWR

2.3.x

Vercel's data fetching. Stale-While-Revalidate. v2 adds useSWRMutation, useSWRSubscription, preload API, optimistic UI built-in. ~4KB.

★ 30K ~3.5M/wk Active

tRPC

v11.1

End-to-end type safety between server and client — no codegen. v11: RSC server-side caller, @trpc/tanstack-react-query package. Default for Next.js + Prisma stacks.

★ 36K ~1.2M/wk Active

Apollo Client

3.12 / v4-preview

Full-featured GraphQL client. v4 preview: ESM-only, React 19 native, smaller bundle, createQueryPreloader for RSC. watchFragment + useFragment stable.

★ 19K ~3.5M/wk Active

urql

4.3.x

Lightweight, extensible GraphQL client. Exchange-based middleware. React, Vue, Svelte. v4: ESM-first, useSyncExternalStore, normalized cache via @urql/exchange-graphcache.

★ 8.5K ~500K/wk Active

Relay

18.x

Meta's compiler-based GraphQL client. Powers facebook.com. Rust compiler dramatically faster. Colocated fragments, normalized cache. RSC + streaming support.

★ 18.5K ~275K/wk Active

TanStack Query v5 — Breaking Changes

🚨 Removed from useQuery

onSuccess, onError, onSettled callbacks removed
Use useEffect or mutation callbacks instead
status: 'loading' renamed to status: 'pending'
keepPreviousData replaced with placeholderData={(prev) => prev}

✅ New in v5

useSuspenseQuery dedicated hook (replaces suspense option)
Simplified optimistic updates via variables on mutation
queryOptions() / mutationOptions() for reusable typed configs
Infinite queries require initialPageParam and getNextPageParam

🦀

The Rust Toolchain is CompleteTurbopack, Rolldown, Rspack, Parcel core, Biome, Oxc — every significant new build tool is written in Rust or Go. JavaScript tools persist through ecosystem lock-in only. The performance gap is 10–100x.

Build Tools & Bundlers

Vite

v6.2.x

The ecosystem hub. v6 Environment API enables SSR, edge, multi-runtime builds. ESM dev server, Rollup production builds, esbuild pre-bundling. Framework default everywhere.

★ 70K ~21M/wk Active

esbuild

0.23.x

Raw speed benchmark reference. 10–100x faster than Webpack. Used inside Vite for dep pre-bundling. Deliberately limited scope — no HMR, focused on pure build speed.

★ 38K ~78M/wk Active

Webpack 5

5.95.x

Still the most-downloaded bundler — legacy entrenchment. Module Federation (micro-frontends). Persistent filesystem cache. Broadest plugin/loader ecosystem.

★ 65K ~27M/wk Maintenance

Bun

1.2.x

All-in-one: runtime + bundler + package manager + test runner. Native TypeScript/JSX. Binary lockfile. 2–4x faster than Node. Cloudflare Workers support.

★ 75K ~2.5M/wk Active

Rspack

1.x

Webpack drop-in replacement in Rust. Battle-tested at ByteDance scale. Module Federation 2.0. Rsbuild is the higher-level tool on top. 5–10x faster than Webpack.

★ 10.5K ~1.7M/wk Active

Rolldown

0.13.x

Future production bundler inside Vite. Rollup-compatible API. Built on Oxc (Rust parser). 10–20x faster than Rollup. Pre-1.0 but being dogfooded in Vite nightly.

★ 10.5K ~75K/wk Pre-1.0

Parcel 2

2.13.x

Zero-config — point at an HTML file and it works. Parcel Macros for compile-time code execution. Content-hashed persistent cache. Best zero-config bundler.

★ 43K ~1.7M/wk Active

Biome

1.8.x

ESLint + Prettier replacement in one Rust binary. 200+ lint rules. Prettier-compatible formatter. 25–35x faster. JS/TS/JSX/CSS/JSON. Zero dependencies.

★ 16.5K ~3.5M/wk Active

Turbopack

Next.js 15

Rust incremental engine — recomputes only what changed. next dev --turbopack is stable. Up to 10x faster cold starts than Webpack. Next.js-only (not standalone).

★ 26K Via Next.js Active

Utility Libraries

es-toolkit

1.x

Modern Lodash replacement by Toss. es-toolkit/compat for drop-in Lodash migration. 97% smaller bundles per function. Precise TypeScript types. 2–3x faster than Lodash.

★ 7.5K ~2.5M/wk Active

Radash

12.1.x

TypeScript-first Lodash alternative. Key differentiator: async utilities — retry(3, fn), parallel(10, items, fn), series([fn1, fn2]). Readable, auditable source.

★ 4.7K ~600K/wk Active

date-fns

v3.6

Modular, tree-shakeable date utilities — 200+ pure functions. v3 is ESM-only. 80+ locales. date-fns-tz for timezone support. Most-downloaded date lib.

★ 35K ~19M/wk Active

Luxon

3.5.x

Wraps native Intl — no locale data to bundle. Immutable DateTimes. Unique Interval type. In maintenance mode — Temporal API is its successor.

★ 15K ~9M/wk Maintenance

Temporal API

TC39 Stage 3

Native JS — replaces Date entirely. Immutable, timezone-safe. ZonedDateTime, PlainDate, Duration. Polyfill: @js-temporal/polyfill. V8 implementation in progress.

★ 3.5K ~175K/wk (polyfill) Stage 3

Zod

v3.23

The ecosystem standard. Schema-as-source-of-truth. z.infer<typeof schema> gives TypeScript types from runtime schemas. Everywhere: tRPC, RHF, Drizzle, Next.js. v4 in beta: 100x faster.

★ 34K ~30M/wk Active

Valibot

0.35.x

Tree-shakeable — ~600 bytes per schema vs ~12KB for Zod. Functional pipe() API. Critical for edge functions where bundle size matters. Growing fast.

★ 6.5K ~2.5M/wk Active

ArkType

2.0.x

Schemas in TypeScript syntax strings with IDE IntelliSense. JIT-compiled validators. Significantly faster than Zod v3 on benchmarks. Unique but polarizing.

★ 5.5K ~600K/wk Active

Routing & Forms

Library	Version	Stars	Weekly DLs	Key Differentiator
React Router v7	7.1.x	~53K	~15M	Remix merger — library + SSR framework modes
TanStack Router	1.x	~8.5K	~1.7M	100% type-safe — params, search params, loaders all inferred
React Hook Form	7.53.x	~41K	~11M	Uncontrolled inputs, minimal re-renders, resolver ecosystem
TanStack Form	0.x	~4.2K	~300K	Framework-agnostic, field-level type safety
Conform	1.x	~4.2K	~400K	Progressive enhancement — works without JS, Remix/RR7 native

Validation Comparison

🏆 Zod v3

30M weekly downloads — ecosystem standard
z.infer<typeof schema> — TS types from runtime
Integrations everywhere: tRPC, RHF, Drizzle, Astro
v4 in beta: 100x faster parsing, 50% smaller bundle

⚡ Valibot

~600 bytes per schema (vs ~12KB for Zod)
Tree-shakeable — only import what you use
Functional pipe(string(), email(), maxLength(50))
Best for edge functions and bundle-sensitive environments

🎯 ArkType

TypeScript syntax in strings: type({ age: "number > 0" })
IDE IntelliSense inside schema strings — unique
JIT-compiled: fastest raw validation of the three
Tradeoff: stringly-typed API is polarizing

The State of JS Libraries
in 2025

Compilers Over Runtimes

Signals Everywhere

Zero-Runtime CSS Wins

The Rust Toolchain is Complete

Vite is the Platform

Server/Client Blur

The shadcn/ui Effect

Temporal API is Inevitable

GSAP Went Free

TypeScript Type Safety as Moat

UI Frameworks & Meta-Frameworks

🤖 React Compiler

⚡ Actions API

🪝 New Hooks & APIs

🌊 Svelte 5 Runes

⚡ Next.js 15

🌌 Astro 5

🔀 React Router v7

UI Component Libraries

✨ Aceternity UI

🪄 Magic UI

📋 Origin UI

CSS, Styling & Animation

🦀 Oxide Engine (Rust)

🎨 CSS-First Configuration

State Management & Data Fetching

🚨 Removed from useQuery

✅ New in v5

Build Tools & Utilities

🏆 Zod v3

⚡ Valibot

🎯 ArkType

The State of JS Librariesin 2025

Compilers Over Runtimes

Signals Everywhere

Zero-Runtime CSS Wins

The Rust Toolchain is Complete

Vite is the Platform

Server/Client Blur

The shadcn/ui Effect

Temporal API is Inevitable

GSAP Went Free

TypeScript Type Safety as Moat

UI Frameworks & Meta-Frameworks

🤖 React Compiler

⚡ Actions API

🪝 New Hooks & APIs

🌊 Svelte 5 Runes

⚡ Next.js 15

🌌 Astro 5

🔀 React Router v7

UI Component Libraries

✨ Aceternity UI

🪄 Magic UI

📋 Origin UI

CSS, Styling & Animation

🦀 Oxide Engine (Rust)

🎨 CSS-First Configuration

State Management & Data Fetching

🚨 Removed from useQuery

✅ New in v5

Build Tools & Utilities

🏆 Zod v3

⚡ Valibot

🎯 ArkType

The State of JS Libraries
in 2025