dotenv-extended

A module for loading .env files and optionally loading defaults and a schema for validating all values are present.

nested-env-schema

Validate & extract your env variables using nested JSON schema, Ajv and dotenvx

zennv

Parses environment variables using a Zod schema for type and runtime validation

env-schema-checker

A zero-config, type-safe, schema-driven .env validator with automatic error reporting, autocomplete, and runtime checks