koanf
A lightweight, extensible configuration management library for Go with support for multiple sources and formats.
What is koanf?
Koanf is a configuration management library for Go applications that reads settings from various sources like files, environment variables, command line flags, and remote services such as S3 and Vault. It supports multiple formats including JSON, YAML, TOML, and HCL, and is designed as a cleaner, more modular alternative to viper.
Go developers building applications that require flexible configuration management from multiple sources, especially those seeking a lightweight and extensible alternative to viper.
Developers choose Koanf for its clean abstractions, minimal dependencies, and extensibility through a provider-parser interface, avoiding the tight coupling and bloat found in some alternatives. It offers live reloading, flexible merging strategies, and case-sensitive key handling without imposing arbitrary ordering conventions.
Overview
Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.
Use Cases
Best For
- Go applications needing configuration from multiple sources like files, environment variables, and command-line flags
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