proxy-from-env is a lightweight Node.js package that simplifies retrieving proxy configurations from environment variables. It automatically detects and parses common proxy environment variables like HTTP_PROXY, HTTPS_PROXY, and NO_PROXY, returning a usable proxy URL string or null if no proxy is configured. This eliminates manual environment variable parsing, streamlining proxy setup in applications interacting with external services. Ideal for networking libraries and command-line tools needing proxy awareness.