Batfish is a network configuration analysis tool that can find bugs and guarantee the correctness of (planned or current) network configurations. It enables network engineers to rapidly and safely evolve their network, without fear of outages or security breaches.

Quick and reliable way to convert NGINX configurations into JSON and back.

A configuration editing tool and API

A simple configuration parser for Python

Essential light-weight portable C++ 11 library dealing with images/files/systems for researches and demos

go implementation of lightbend's HOCON configuration library https://github.com/lightbend/config

DirectFire Firewall Converter - Network Security Firewall Configuration / Syntax Conversion and Migration Tool - supports Cisco ASA, Fortinet FortiGate, Juniper SRX (JunOS) and WatchGuard (with wider support in development). Like FortiConverter, SmartMove, Expedition etc. Previously OpenFireVert.

Python library for loading settings and config data from files and environment variables

Golang configuration parser. This package allow to work with flags, environment variables, external sources (json configuration file e.g.).

Just a configuration information source for rust

Configuration File Library for LabVIEW

A *very* simple and *lightweight* configuration loader and parser for Python.

A barebones configuration file made for low-dependency rust applications.

Providing support for configuration files while parsing command-line arguments

Java numerical classes for astronomy and beyond

High level Python development library

A simple configuration file parser in C

Python library to dynamically parse and edit configuration files with support for subsections.

.NET key value configuration parser

taking a configuration block, and then building fields based on that block

High level C++ development library

A simple, lightweight utility to validate and parse values from the Java Properties file.

C library for parsing command line option and configuration files.

Class Project - Implementation of a configuration parser using ADA83.

resolve configurations from abstract hierarchies and templates

a block-style configuration with Pure Perl values that fires events when values are altered

XML configuration parser for WatchGuard firewalls

A c library for parsing an ini-style configuration file.

MGE System Utilities Library.