ENV Viewer & Formatter
View, validate, sort, and format dotenv files in your browser with duplicate-key checks, sensitive value masking, copy, and download support.
Use this free ENV file viewer and formatter to inspect, sort, and validate dotenv configuration files in your browser. Paste dotenv content or open a local file, then sort keys, detect duplicate variable names, and toggle sensitive value masking to safely screenshot or share the view. No content is uploaded. Intended for local development workflows where inspecting environment variable files helps catch typos, missing keys, or duplicate declarations before container startup or test runs.