How does TypeScript run without a build?

Square auto-installs tsx (runner built on esbuild) and runs your .ts code directly. No dist/ or tsc --build required.

Are .tsx and JSX files accepted?

Yes. All variants accepted: .ts , .tsx , .mts , .cts , .mtsx , .ctsx .

Which Node.js version runs TypeScript?

Latest: Node 26 with tsx. Recommended: Node 24 with tsx. Same tracks as the JavaScript runtime.

Can I use NestJS or tRPC?

Yes. The full TypeScript ecosystem works — NestJS, tRPC, Hono, ElysiaJS, Drizzle, Prisma, and any npm package.

TypeScript with no build step

Square runs your .ts files directly via tsx. Type safety with the agility of scripts.

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Why run on Square Cloud

Everything optimized, production-ready.

Run .ts files directly

No need for dist/, tsc --build, or Docker multi-stage.

tsx auto-installed

Modern TypeScript runner built on esbuild — ready on first boot.

Supports .tsx (JSX) and ESM/CJS

All TypeScript variants accepted with no build ceremony.

Same Node.js optimizations

V8 tuning, auto-install, .env loader — the full npm ecosystem.

Ideal use cases

Where this runtime shines on our platform.

Typed APIs with tRPC and NestJS

End-to-end type safety between client and server with automatic type inference.

Strongly-typed Discord bots

Hosting for discord.js, Sapphire, and Discordeno bots with full autocomplete and validation.

SaaS backends with Prisma and Drizzle

Type-safe ORMs and queries with full schema inference at production scale.

Microservices with Hono or ElysiaJS

Lightweight, typed, ultra-fast APIs on modern runtimes with edge-ready performance.

Automation scripts and CLIs

Type safety with no build ceremony — tsx runs TypeScript code directly in production.

Telegram bots with grammY

Modern, typed, and performant framework for Telegram automations with extensible middleware.

Available versions

Pick the track that best fits your project.

Latest

Cutting-edge features

VERSION=latest

Recommended

Stable for production

VERSION=recommended

Technical specs

Everything you need to configure your app.

Accepted extensions: .ts.tsx.mts.cts.mtsx.ctsx
Dependency file: package.json
RUNTIME= aliases: typescript

Minimal config

Create a squarecloud.app file at your project root:

squarecloud.appTypeScript

MEMORY=512
DISPLAY_NAME=Meu App
VERSION=recommended
MAIN=index.ts

Frequently asked questions about TypeScript Hosting

Build, tsx runtime, and differences from Node.js.

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