A CLI tool for environment variable management
A Babel preset for each environment.
AWS credential provider that sources credentials from known environment variables
Offers getProxyForUrl to get the proxy URL for a URL, respecting the *_PROXY (e.g. HTTP_PROXY) and NO_PROXY environment variables.
Runtime agnostic JS utils
Run scripts that set and use environment variables across platforms
Convert modern CSS into something browsers understand
Next.js dotenv file loading
A global executable to run applications with the ENV variables loaded by dotenv
Loads environment variables from .env file
hydrate environment variables from .env files into process.env
Executes a command using the environment variables in an env file
Uses export conditions to return environment information in a way that works with major bundlers and runtimes.
Get the PATH environment variable key cross-platform
Get paths for storing things like data, config, cache, etc
A Babel preset that targets modern browsers by fixing engine bugs.
Regular expression for matching a shebang line
HANDLE CONFIGURATION ONCE AND FOR ALL
Unified LLM API for Anthropic, OpenAI, Google, and DeepSeek. Streaming, retry/backoff, structured output, token normalization. © Diabolical Labs
 [](https://jsr.io/@t3-oss/env-core) [](https://jsr.io/@t3-oss/env-core) [![Socket Bad
Robust Environment Configuration for Universal Applications.
Verification, sanitization, and type coercion for environment variables in Node.js
Use env() variables in CSS
A Babel preset for each environment.