SDK Bundle Size

Ultra-light tracker. Almost zero bundle impact.

Incredibly lightweight. The script tag approach is even lighter at <1KB.

Tiny React Router alternative. ~2KB gzipped. Hooks-based API. Perfect for small SPAs that don't need nested routes or data loaders.

Tiny analytics snippet. @vercel/speed-insights adds another ~2KB.

Email API client. Ultra-light — just fetch wrappers for sending transactional and marketing emails. Server-only.

Server-only SDK — doesn't affect client bundle at all.

Atomic state for React. Comparable to Zustand in size. Each atom tree-shakes independently — only pay for state you use.

Ultra-light API key verification client. Mostly fetch wrappers. Works in edge runtimes. Negligible bundle impact.

Tiny fetch wrapper with retries, hooks, and JSON shortcuts. Great axios replacement for browsers.

Minimal state management. No context providers, no boilerplate. One of the best size-to-capability ratios in React state.

Ultra-light auth library. No UI components, no bloat. Just sessions.

Tiny event ingestion client for Tinybird. Designed for browser usage with batching. Minimal client bundle impact.

Status page widget for React. Tiny embed component. Full monitoring runs server-side with zero client impact.

Event ingestion SDK with batching. Designed for browser usage. Minimal footprint for real-time analytics tracking.

Ultra-light web framework. Runs everywhere — Workers, Deno, Bun, Node. Middleware is modular.

Modular Zod alternative. Per-schema tree-shaking means you only bundle the validators you actually use. Best-in-class size for validation.

Tiny HTTP-based MySQL driver. Works in edge runtimes and Cloudflare Workers — no TCP required. One of the lightest database drivers available.

Link management SDK. Thin REST client for creating/managing short links. Server-only in practice.

No dedicated SDK — use graphql-request or any GraphQL client. Minimal overhead.

Minimal driver — Postgres wire protocol over WebSocket. Very efficient.

Serverless rate limiting library. Tiny footprint, edge-compatible. Pairs with @upstash/redis for zero-infra rate limiting.

Per-primitive packages. Import only what you use. Dialog shown here — full component suite is ~50 separate packages.

Lightweight log ingestion client. Server-side only in practice — no client bundle impact. REST-based so works in any runtime including edge.

Multiplayer infrastructure SDK. Client connection library is tiny. Server part runs on Cloudflare Workers — no bundle impact.

Minimal API client — mostly fetch wrappers. Server-only, zero client bundle impact.

Tiny REST-based Redis client. Works in edge runtimes and serverless where TCP connections aren't available. Far lighter than ioredis.

E-signature embed component. Loads signing UI in an iframe. Host page cost is minimal — just the loader component.

Lightweight BaaS client. Includes auth, CRUD, realtime subscriptions. One of the smallest full BaaS SDKs available.

Monetization SDK for OSS. Server-only for webhook handling. Checkout embeds load via iframe — minimal host page impact.

Security middleware for Next.js. Runs in server middleware — zero client bundle cost. Rate limiting, bot detection, email validation.

OpenAI-compatible SDK. Lean client. Server-only. Fastest inference means streaming overhead is barely noticeable.

Core client is lean. @trpc/react-query adds ~15KB. Type inference happens at build time — zero runtime overhead for types.

Lean form library. Uncontrolled inputs minimize re-renders. ~30KB lighter than Formik with comparable features.

OAuth 2.0 provider library with 50+ providers. Tree-shaking is essential — each provider is a separate import. Only ships the providers you use.

OpenAI-compatible client. Lightweight — mostly fetch wrappers with streaming support. Server-only in practice.

Light search client. Can be imported client-side without worry.

Lightweight embed component. Scheduling UI is loaded in an iframe — host page impact is minimal.

Secrets management SDK. Server-only — fetches secrets at startup. Minimal overhead once cached. No client bundle impact.

Small upload client. React components (@uploadthing/react) add ~20KB but are optional.

Lean email client. Modern rewrite is much lighter than the legacy mailgun-js package.

Lighter than Zod but weaker TypeScript inference. Consider valibot for best size-to-type-safety ratio.

Server-side notification SDK. Moderate size. @novu/notification-center (React) adds ~85KB for in-app notifications UI.

Official SDK with streaming, function calling, and JSON mode. Moderate size for an AI client. Server-only.

Excellent size for what it does. DevTools are separate — no production impact.

Lightweight auth framework. Plugin system keeps core small — only pay for what you use.

Light mail-only package. The full @sendgrid/client is heavier but rarely needed.

Billing API client. Auto-generated from OpenAPI. Server-only — handles metering, invoicing, subscriptions.

Thin loader — loads full Stripe.js (~80KB) async from CDN. Initial bundle impact is small.

Slightly heavier than Meilisearch but still reasonable for a search client.

Popular validation. Consider valibot (~6KB) for bundle-sensitive apps.

Popular but heavy for what it does. Native fetch + a tiny wrapper (ky at ~3KB) is lighter.

Standard for React routing. v7 merges Remix patterns. Tree-shakes better than v6. Reasonable size for what it provides.

Headless table primitives — you bring the markup. Reasonable size for a fully featured grid engine. AG Grid is 5x larger.

Light CMS client. GROQ queries are string-based — no heavy query builder bundled.

LLM observability SDK. Server-only tracing. Wraps OpenAI/Anthropic calls with minimal overhead. Batches telemetry data.

Lightweight ORM. Much smaller than Prisma client (~400KB). Great tree-shaking.

Lighter rebrand of Framer Motion. ~60% smaller than the full framer-motion package. Same API, better tree-shaking.

Enterprise auth SDK. Server-only. Moderate size covering SSO, Directory Sync, and User Management. Clean TypeScript types.

Type-safe routing with file-based or code-based config. Larger than React Router but inference is unmatched — every param is typed end-to-end.

Notification infrastructure client. Reasonable size. The React feed components (@knocklabs/react) add ~80KB more — only import on routes that need them.

Reasonable BaaS client. Slightly smaller than Supabase. Individual services tree-shake well.

Vercel's AI SDK with streaming primitives. Lean core with provider-specific subpath imports. Works on edge and Node.

Server-side SDK for room management and token generation. Moderate size. Protobuf definitions add some weight. No client bundle impact.

Lightweight LibSQL driver with embedded replica support. Works in edge runtimes and serverless.

Reasonable size for full BaaS client. Tree-shaking works — import only what you need.

Moderate CMS client. Includes rich-text resolvers which add weight. Use REST directly for lighter option.

Excellent tree-shaking — import only used functions. Typical usage adds 3-8KB gzipped.

Gemini SDK. Reasonably sized. Server-side preferred but works in browser too. Lighter than OpenAI SDK.

Moderate weight for auth. SessionProvider adds ~10KB to client bundle.

Speech-to-text SDK. Moderate size. WebSocket streaming adds weight but tree-shakes if unused.

Passkey auth web components. Includes login/registration UI. Moderate size for a full auth frontend. Custom elements hydrate on demand.

Full bundle is wasteful. Use lodash-es for tree-shaking or individual lodash/method imports.

Meta's editor framework. Core is lean; plugins add weight per feature. Comparable to Tiptap in real-world bundle.

Full auth client with pre-built React components. Similar weight to Clerk but open-source. Server components reduce client-side impact.

Moderate size for analytics. Autocapture adds weight — disable if unused to save ~10KB.

Server-only SDK. Clean TypeScript, no unnecessary browser polyfills.

Server-only background job SDK. Moderate size with good tree-shaking. No client bundle impact.

Rich-text editor core. Each extension adds 2-15KB. Most apps ship 150-300KB total with common extensions.

Background job SDK for long-running tasks. Server-only — no client bundle impact. v3 architecture runs in separate worker processes.

Local-first sync engine. Client-side SQL with Postgres replication. Moderate size for a full sync runtime. Includes SQLite WASM adapter.

Server-only SDK for durable functions. Type-safe event schemas add some weight but tree-shake well.

Realtime collaboration client. Moderate size for what it does. @liveblocks/react adds ~40KB more. Only import on routes that need collab features.

Server-only durable function SDK. Type-safe event schemas add overhead but tree-shake well. Zero client bundle impact — all logic runs server-side.

Server-only. Moderate size for a vector DB client.

Server-only vector DB client. Moderate size. Auto-generated from OpenAPI — covers every endpoint but most apps use 3-4 methods.

Server-only in practice. Streaming helpers add weight but tree-shake well.

Full reactive BaaS client. Heavier than Supabase but includes realtime sync engine. Tree-shakes well.

Heavy animation library — but tree-shakes well in v11. The new motion package (~30KB) is the lighter rebrand if size matters.

Session replay + error tracking + logging. Heavier than Sentry alone but replaces multiple tools. Record worker runs in a Web Worker.

Heavier than Clerk but less UI bundled. Server-side auth handling keeps client lighter.

Functional programming runtime. Heavy but tree-shakes well — most apps use a fraction. Server-side only in practice.

Feature-rich Redis client but heavy. For serverless, @upstash/redis at ~20KB is far lighter.

Heavy RUM SDK. Consider server-side APM only if bundle size matters.

Moderate charting lib. Register only needed chart types and scales to tree-shake ~40% off.

Significant bundle cost. Use @sentry/browser with selective integrations to cut by ~50%.

Full bundle is huge. Import individual modules (d3-scale, d3-shape) — each is 2-15KB gzipped.

WebRTC components are inherently heavy. Core livekit-client is ~200KB alone. Lazy-load for video-call features.

Heavy for auth — includes UI components. @clerk/backend is lighter at ~15KB gzipped.

Per-service packages are huge individually. Tree-shaking helps but middleware stack adds baseline cost. Server-only.

Server-only Node SDK — never import client-side. Large but it's your backend, not the browser bundle.

Very heavy driver. Server-only but bloats serverless bundles. Consider Mongoose alternatives or direct Atlas Data API.

Full component library — includes 100+ components. Tree-shaking reduces real-world impact significantly. RTL support included.

Very heavy — generated client. Server-only but affects serverless cold starts.

Massive SDK — auto-generated from OpenAPI spec covering every HubSpot API. Server-only, use REST for lighter alternative.

Massive server SDK — covers every Twilio API. Server-only but crushes serverless cold starts.

Massive 3D engine. Tree-shaking helps but core is still ~100KB gzipped. Lazy-load if possible.

Extremely heavy APM agent. Server-only but significantly increases cold start times in serverless.

Massive full SDK. Modular imports (firebase/auth, firebase/firestore) reduce to ~80-150KB gzipped per service.