63 packages · one CLI · real docs

The Lacspace
Developer Platform

63 zero-dependency, isomorphic TypeScript packages — the standard library your backend and frontend keep re-inventing — plus a CLI that scaffolds a finished Next.js app, and the docs to build with all of it.

Explore 63 packages →Read the handbook

63packages

0runtime deps

ESM+CJSdual output

8templates

100%TypeScript

Freelicence

Everything developer, in one place

The platform

Documentation, packages, the handbook, scaffolding and live apps — the surfaces you need to go from install to production.

npm Packages

All 63 zero-dependency packages — grouped by kit, with versions and one-line docs.

Browse packages

Documentation

Per-package guides, the concepts, and a downloadable PDF handbook.

Read the docs

Developer Handbook

Install, use, upgrade, scaffold and ship — the end-to-end guide to the ecosystem.

Open handbook

Scaffold an App

create-lacspace-app writes a finished Next.js app in ~0.15s — 8 templates, SEO wired.

Scaffold now

Deployed Apps

Eight finished templates, live and clickable — see exactly what one command produces.

Open templates

Integrations

Drop the packages into Next.js, Node, edge runtimes, React — isomorphic by design.

See integrations

Compare Packages

How @lacspace stacks up against the usual dependencies — zod, dinero, jsonwebtoken and more.

Compare

Live Playground

Run packages in your browser — slugify, money, case, humanize, color and id, live.

Open playground

The ecosystem

A standard library for the modern web

Ten kits, sixty-three packages, zero runtime dependencies. Import only what you use — every package is isomorphic and tree-shakeable.

Security Kit

Auth, crypto, and hardening — all over Web Crypto, never hand-rolled.

@lacspace/cryptoAES-256-GCM, PBKDF2, HMAC over Web Crypto
@lacspace/passwordPBKDF2 hashing with a portable PHC string
@lacspace/jwtHS256/384/512 with strict expiry/issuer checks
@lacspace/webauthnPasskeys / FaceID / fingerprint ceremonies
@lacspace/otpTOTP & HOTP, Google Authenticator compatible

SEO Kit

Configure once with defineSite() → metadata, JSON-LD, sitemap, robots, feeds.

@lacspace/seoTyped metadata + schema.org JSON-LD builders
@lacspace/sitemapsitemap.xml, indexes, Next.js sitemaps
@lacspace/robotsrobots.txt with AI-crawler block presets
@lacspace/ogDynamic Open Graph share-card images
@lacspace/rssRSS 2.0, Atom & JSON Feed from one source

React Kit

SSR-safe hooks, state, data fetching and theming — zero-dependency, tiny.

@lacspace/hooks28 essential SSR-safe hooks
@lacspace/storeGlobal state in ~1KB, no provider
@lacspace/queryData fetching with a shared cache (SWR-lite)
@lacspace/themeSSR-safe dark / light / system theme
@lacspace/hotkeysCombos, sequences and scopes

App Kit

The pieces every app repeats — validation, forms, money, IDs, dates.

@lacspace/validateTyped schema validator with zod ergonomics
@lacspace/formFormData → typed, validated data + honeypot
@lacspace/moneyInteger minor units — no floating-point bugs
@lacspace/idUUID v4 / v7, Nano-ID-style, short codes
@lacspace/markdownSafe Markdown → HTML with GFM

Backend Kit

Server plumbing without the servers — signed URLs, PDFs, webhooks.

@lacspace/signed-urlHMAC-signed, expiring URLs & magic links
@lacspace/pdfReal PDFs — invoices, receipts — zero deps
@lacspace/webhooksSign, deliver & verify webhooks both ways
@lacspace/idempotencyExactly-once with an idempotency key
@lacspace/envTyped, validated environment variables

Mail Kit

Send and validate email from a Node backend — no third-party SDK.

@lacspace/mailerZero-dependency SMTP client over net/tls
@lacspace/email-templatesResponsive, dark-mode-aware HTML emails
@lacspace/email-validateSyntax + disposable / role detection
@lacspace/email-verifyMX lookup + best-effort deliverability

StockKit

Everything a trading app needs — indicators, market math, a paper engine.

@lacspace/indicatorsStreaming RSI, MACD, EMA, Bollinger, ATR…
@lacspace/marketP&L, returns, CAGR, XIRR, tick rounding
@lacspace/market-clockHoliday-aware NSE/BSE trading clock
@lacspace/paper-tradeHeadless paper-trading engine

Core & Data

The SDK, the HTTP client, analytics, and spreadsheet I/O.

@lacspace/sdkHigh-level TypeScript SDK for Lacspace
@lacspace/apiIsomorphic, zero-dependency HTTP client
@lacspace/authLogin, register, token, refresh flows
@lacspace/analytics-liteCookieless, privacy-first web analytics
@lacspace/xlsxWrite real .xlsx with zero dependencies

See all 63 packages →

From zero to shipped

One command. A finished app.

create-lacspace-app scaffolds a real Next.js 15 + React 19 + Tailwind v4 app — every page filled, SEO and security headers wired, a 26-component UI kit included — in about 0.15 seconds. Then it's a normal app you own.

--template saasSEO wiredOG imagessecurity headerssitemap + robots⌘K palette

terminal

# install a package
npm i @lacspace/validate @lacspace/money

# or scaffold a whole app
npm create lacspace-app@latest my-app -- --template saas
cd my-app && npm run dev

Start building

Batteries included, dependencies excluded

Everything here is free under the Lacspace Free Licence. Pick a package, read a guide, or scaffold an app — you're one command from shipping.

Browse the packages →See live templates ↗

The Lacspace Developer Platform