Is this .env to TypeScript converter free?

Yes, SnipShift's Env to Types converter is completely free with no signup required. Convert unlimited .env files to TypeScript, Zod, t3-env, or Valibot schemas.

How does type inference work?

The converter analyzes each value: numeric values like PORT=3000 become number, boolean-ish values like DEBUG=true become boolean, URL patterns become string with .url() validation, and everything else becomes string.

What is the t3-env output format?

The t3-env format generates a createEnv() config compatible with @t3-oss/env-nextjs. It automatically splits variables into server and client sections based on NEXT_PUBLIC_ prefix detection.

Does it handle NEXT_PUBLIC_ variables?

Yes! When prefix detection is enabled, variables with NEXT_PUBLIC_, VITE_, or REACT_APP_ prefixes are automatically categorized as client variables in the t3-env output format.

Env to TypeScript / Zod Converter

Convert .env files to typed TypeScript interfaces, Zod schemas, t3-env configs, or Valibot schemas instantly in your browser, no server, completely free.

How It Works

Paste Your .env

Paste or type your .env file content into the input editor. Supports comments, quoted values, and multiline strings.

Choose Format

Select your output format: TypeScript interface, Zod schema, t3-env config, or Valibot schema. Adjust optional and comment settings.

Copy & Use

Your typed schema updates instantly. Copy it to your clipboard or download it as a .ts file.

Why Type Your Environment Variables

Runtime Safety

Catch missing or mistyped environment variables at build time instead of discovering them in production.

IDE Autocomplete

Get full IntelliSense and autocomplete for process.env in VS Code, WebStorm, and other TypeScript-aware editors.

Framework Integration

Generate t3-env configs that automatically split NEXT_PUBLIC_ variables into client/server sections.

Validation Schemas

Produce Zod or Valibot schemas that validate and coerce environment variables at app startup.

Supported Output Formats

TypeScript

Zod

t3-env

Valibot

FAQ

Is this converter free to use?

Yes, completely free with no signup, no limits, and no data sent to any server. Everything runs in your browser.

Is my .env data sent to a server?

No. The conversion happens entirely in your browser using JavaScript. Your environment variables and secrets never leave your machine.

How are types inferred from values?

Numeric values like PORT=3000 become number, boolean values like DEBUG=true become boolean, URL patterns become string with .url() validation, and everything else becomes string. Empty values can be marked as optional.

What is the t3-env format?

The t3-env format generates a createEnv() configuration compatible with @t3-oss/env-nextjs. It splits variables into server and client sections based on prefix detection (NEXT_PUBLIC_, VITE_, REACT_APP_).

Which output format should I use?

Use TypeScript interface for simple type declarations, Zod for runtime validation, t3-env for Next.js projects using the T3 stack, or Valibot for a lighter-weight validation alternative to Zod.

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