GoReplay is an open-source tool for capturing and replaying live HTTP traffic into a test environment in order to continuously test your system with real data. It can be used to increase confidence in code deployments, configuration changes and infrastructure changes.

Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software.

VPS 融合怪服务器测评项目 更推荐使用无环境依赖的Go版本 VPS Fusion Monster Server Test Script – More recommended to use the Go version with no environment dependencies: https://github.com/oneclickvirt/ecs

Docker images and test runners that replicate the live AWS Lambda environment

The AWS exploitation framework, designed for testing the security of Amazon Web Services environments.

sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your website’s speed using real browsers in various environments.

Pafish is a testing tool that uses different techniques to detect virtual machines and malware analysis environments in the same way that malware families do

Automation for Kubernetes development and testing. Spin up production-like environments for development, testing, and CI on demand. Use the same configuration and workflows at every step of the process. Speed up your builds and test runs via shared result caching

⚔️Windows11 Penetration Suite Toolkit 🔰 The First Windows Penetration Testing Environment on Mac M Chips

MailSniper is a penetration testing tool for searching through email in a Microsoft Exchange environment for specific terms (passwords, insider intel, network architecture information, etc.). It can be used as a non-administrative user to search their own email, or by an administrator to search the mailboxes of every user in a domain.

An open-source visual programming environment for battle-testing prompts to LLMs.

NVIDIA Isaac Sim™ is an open-source application on NVIDIA Omniverse for developing, simulating, and testing AI-driven robots in realistic virtual environments.

Testcontainers is a Python library that providing a friendly API to run Docker container. It is designed to create runtime environment to use during your automatic tests.

A collection of scripts to set up MongoDB test environments and parse and visualize MongoDB log files.

VPS Fusion Monster Server Test GO Version Aiming to be the most comprehensive server testing project, implemented in Go with zero environment dependencies. VPS融合怪服务器测评项目 GO版本 尽量成为最全能的服务器测评项目，使用 Go 实现，无需任何环境依赖。

javascript koans is an interactive learning environment that uses failing tests to introduce students to aspects of JavaScript in a logical sequence.

A secure sandbox environment for malware developers and red teamers to test payloads against detection mechanisms before deployment. Integrates with LLM agents via MCP for enhanced analysis capabilities.

Docker/Qemu Based Linux Kernel Learning, Development and Testing Environment; New Linux ELF Video Course from this project author: https://www.cctalk.com/m/group/88089283

RedSnarf is a pen-testing / red-teaming tool for Windows environments

Damn Vulnerable iOS App (DVIA) is an iOS application that is damn vulnerable. Its main goal is to provide a platform to mobile security enthusiasts/professionals or students to test their iOS penetration testing skills in a legal environment. This project is developed and maintained by @prateekg147. The vulnerabilities and solutions covered in this app are tested up to iOS 11. The current version is writen in Swift and has the following vulnerabilities.

Vagrant VirtualBox environment for conducting an internal network penetration test

Loads environment variables from .env.[development|test|production][.local] files for Node.js® projects.

Checklists for Testing Security environment

A sample lab test environment to help in preparation of CKA certification.

Open Robotics Automation Virtual Environment: An environment for testing, developing, and deploying robotics motion planning algorithms.

The Confluent Platform Helm charts enable you to deploy Confluent Platform services on Kubernetes for development, test, and proof of concept environments.

E2E test framework for tests with complex environment requirements.

NodeBootstrap - generates skeleton project for Node/Express.js with pre-configured best-practices. Kick-start your Node project development with tons of boilerplate taken care of, such as: clustering, Docker-support, database migrations, automated testing, error-handling, modularity, advanced logging, templated views, environments etc.

(NOT MAINTAINED) Build And Testing Environments as Code Tool

Cloud Container Attack Tool (CCAT) is a tool for testing security of container environments.