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tiny-typed-env

Typed env. Fail at boot.

Load and validate environment variables with built-in schemas—or Zod, Valibot, and ArkType—across Node, Bun, Deno, and Workers.

Getting StartedSchema helpers
import { createEnv, s } from "tiny-typed-env/node";

export const env = createEnv({
  DATABASE_URL: s.url(),
  PORT: s.port({ default: 3000 }),
  TIMEOUT: s.duration({ default: "30s" }),
});

// env.TIMEOUT → 30000

01

Typed & minimal

Built-in s helpers—no Zod required—with full TypeScript inference, nested groups, duration, and bytes.

02

Cross-runtime

Use loadEnv anywhere, or createEnv on Node and Bun with automatic .env loading.

03

Fail-fast + CLI

Invalid env stops the process at boot (secrets redacted). Use npx tiny-typed-env check in CI.