Open-source alternatives to Gone

Load configuration in cascade from multiple backends into a struct

📝 Go configuration manage(load,get,set,export). support JSON, YAML, TOML, Properties, INI, HCL, ENV and Flags. Multi file load, data override merge, parse ENV var. Go应用配置加载管理，支持多种格式，多文件加载，远程文件加载，支持数据合并，解析环境变量名

Hjson for Go

koanf is a configuration management library for Go designed to load, merge, and unmarshal application settings from multiple sources into structured objects. It functions as a multi-source config loader that aggregates data from environment variables, files, and remote providers into a single unified map. The system utilizes a pluggable architecture for parsing and data abstraction, allowing it to transform bytes from formats such as JSON, YAML, and TOML into nested maps. It supports dynamic configuration watching to monitor external sources and trigger automatic reloads when settings change.

Library providing routines to merge and validate JSON, YAML and/or TOML files

Harvest configuration, watch and notify subscriber

Viper is a configuration management library designed to centralize application settings from diverse sources into a unified, type-safe registry. It aggregates data from local files, environment variables, command-line flags, and remote key-value stores, providing a single source of truth for application state. By utilizing a hierarchical key-value registry, the system resolves configuration values based on a prioritized stack of providers, ranging from default values to runtime overrides. The library distinguishes itself through its pluggable provider abstraction and dynamic update capabiliti

envconfig is a Go configuration decoder and environment variable mapper that deserializes environment variables into structured Go data types. It provides tools for validating mandatory fields and ensuring application configuration adheres to the external configuration patterns of twelve-factor app compliance. The library features a help generator that creates formatted usage text based on struct definitions to describe expected environment variables. It also includes a validation tool capable of detecting unused environment variables that match a specific prefix but do not correspond to any

godotenv is a Go library designed to load, parse, and serialize environment configuration files. It provides tools to extract configuration data from files into maps and inject those key-value pairs directly into the system environment of a Go application process. The project includes a configuration file serializer for exporting environment variable maps back into formatted files and a parser for extracting data without modifying the system environment. It supports injecting variables from strings or files into the process environment using priority-based overloading and overwriting. The li

Go helpers to manage environment variables

Package ini provides INI file read and write functionality in Go

Simple, useful and opinionated config loader.

A tiny debug logging tool. Ideal for CLI tools and command applications. Inspired by https://github.com/visionmedia/debug

go-spew is a deep inspection library and debugging utility for Go. It functions as a data structure pretty printer that renders complex, nested types into human-readable strings with indentation and type information. The library provides specialized capabilities for visualizing internal program states, including the ability to dump data structures with pointer addresses and map keys. It includes a configuration system to adjust printing behavior, such as limiting recursion depth and setting indentation. The tool uses reflection-based type inspection and recursive tree traversal to handle nes

An golang log lib, supports tracking and level, wrap by standard log lib

Minimalistic logging library for Go.

Logging, distilled

Seelog is a native Go logging library that provides flexible asynchronous dispatching, filtering, and formatting.

The configuration provider for consuming data in Azure App Configuration from Go applications.

Parse configuration values into given struct from environment, files, json, bytes, or other input convertible to bytes

:memo: Logging with multiple output targets.

A Go package that read or set data from map, slice or json

High-performance configuration management framework for Go applications with zero-allocation performance, universal format support (JSON, YAML, TOML, HCL, INI, Properties), and an ultra-fast CLI powered by Orpheus.

Tamper-evident audit log for Go: an append-only, hash-chained, optionally Ed25519-signed log/slog handler, with offline logx verify. Built on the standard library, zero third-party dependencies. Also a full slog toolkit (colored output, JSON, rotation, fan-out, CLI).