envconfig
A Go library for parsing configuration from environment variables into arbitrary structs with flexible naming and defaults.
What is envconfig?
envconfig is a Go library that parses environment variables into structured Go configuration objects. It automatically maps environment variable names to struct fields, supporting complex types, default values, and custom naming conventions to simplify configuration management in Go applications.
Go developers building applications that follow the 12-factor app methodology or need a clean, type-safe way to manage configuration from environment variables.
Developers choose envconfig for its simplicity, reliability, and production-ready stability—it handles complex nesting and custom types with minimal boilerplate, and has been battle-tested in production for years.
Overview
Small library to read your configuration from environment variables
Use Cases
Best For
- Parsing environment variables into nested Go structs automatically
- Setting default configuration values for optional environment variables
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