Browse free open source JavaScript Command Line Tools and projects below. Use the toggles on the left to filter open source JavaScript Command Line Tools by OS, license, language, programming language, and project status.
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Command-line tool to customize the official Spotify client. Supports Windows, MacOS, and Linux. Change the colors whole UI. Inject CSS for advanced customization. Inject Extensions (Javascript script) to extend functionalities, manipulate UI, and control the player. Inject Custom apps. Remove bloated components to improve performance.
Quickly fire up a personal Ethereum blockchain which you can use to run tests, execute commands, and inspect state while controlling how the chain operates. Quickly see the current status of all accounts, including their addresses, private keys, transactions and balances. See the log output of Ganache’s internal blockchain, including responses and other vital debugging information. Configure advanced mining with a single click, setting block times to best suit your development needs. Examine all blocks and transactions to gain insight about what’s happening under the hood. Byzantium comes standard, giving you the latest Ethereum features needed for modern app development. Each platform has an associated npm run configuration to help you build on each platform more easily. Because each platform has different (but similar) build processes, they require different configurations.
Newman is a command-line collection runner for Postman
Newman is Postman’s open-source command-line runner for collections, enabling the execution and testing of Postman Collections directly via CLI or Node.js scripts. It shines in CI/CD integration by offering flexible reporting, scripting, and automation capabilities. The easiest way to install Newman is using NPM. If you have Node.js installed, it is most likely that you have NPM installed as well. Newman can be easily used within your JavaScript projects as a Node.js module. The entire set of Newman CLI functionality is available for programmatic use as well. Reporters provide information about the current collection run in a format that is easy to both disseminate and assimilate.
Use Claude Code, Cursor CLI or Codex on mobile and web with CloudCLI
ClaudeCodeUI, also known as CloudCLI, is an open-source web and mobile interface that enables developers to control Claude Code and similar AI coding tools through a graphical environment. The project provides a browser-based dashboard that allows users to manage coding sessions, projects, and prompts remotely from virtually any device. It is designed to bridge the gap between terminal-first AI coding workflows and more accessible visual interfaces, improving usability without sacrificing power. The interface supports integration with tools such as Cursor CLI and Codex, enabling flexible multi-model workflows. Built with a mobile-friendly design, it allows developers to monitor and interact with AI coding agents on the go. Overall, ClaudeCodeUI focuses on productivity, remote control, and improved developer ergonomics for AI-assisted programming.
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Customize and package your Electron app with OS-specific bundles
Electron Packager is a command line tool and Node.js library that bundles Electron-based application source code with a renamed Electron executable and supporting files into folders ready for distribution. For creating distributables like installers and Linux packages, consider using either Electron Forge (which uses Electron Packager internally), or one of the related Electron tools, which utilizes Electron Packager-created folders as a basis. Note that packaged Electron applications can be relatively large. A zipped, minimal Electron application is approximately the same size as the zipped prebuilt binary for a given target platform, target arch, and Electron version (files named electron-v${version}-${platform}-${arch}.zip). Building an Electron app for the Windows target platform requires editing the Electron.exe file. Currently, Electron Packager uses node-rcedit to accomplish this.
A tool to install, manage and use Progressive Web Apps (PWAs)
A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox. Progressive Web Apps (PWAs) are web apps that use web APIs and features along with a progressive enhancement strategy to bring a native app-like user experience to cross-platform web applications. Although Firefox supports many of Progressive Web App APIs, it does not support functionality to install them as a standalone system app with an app-like experience. This project creates a custom-modified Firefox runtime to allow websites to be installed as standalone apps and provides a console tool and browser extension to install, manage and use them. Command-line tool to install, manage and run Progressive Web Apps in Firefox. Extension to set up native programs, and install, manage and run PWAs and their profiles directly from the main Firefox browser. Isolated Firefox installation and profile(s) that stores the PWAs.
Playwright CLI is the official command-line interface for Playwright, a powerful cross-browser automation and end-to-end testing framework that lets developers write and run tests reliably across Chromium, WebKit, and Firefox. The CLI provides an easy entry point for creating new test projects, running test suites, generating test traces, and debugging issues directly from the terminal. Developers can scaffold test files, record browser interactions as code, and run tests in headless or headed modes without needing a complex setup, dramatically reducing the barrier to writing robust UI tests. Playwright-CLI includes utilities for running tests in parallel across multiple devices, capturing screenshots and videos on failures, and outputting detailed reports that help diagnose flaky behavior or regressions. It also integrates with CI/CD pipelines, making it simple to automate testing as part of build and deployment workflows.
Your autonomous engineering team in a CLI. Point Zeroshot at an issue
zeroshot CLI is an autonomous engineering agent orchestration CLI that lets developers point it at a software task or issue and have it plan, implement, validate, and iterate on code changes without direct manual intervention. It orchestrates a multi-agent workflow where separate roles such as planner, implementer, and independent validators collaborate in isolated environments, looping until the code meets acceptance criteria or produces reproducible failures. The tool supports multiple underlying AI providers like Claude Code, Codex, OpenCode, and Gemini, as well as integration with issue backends like GitHub, GitLab, Jira, and Azure DevOps, enabling flexible input sources and automation in diverse environments. Zeroshot manages isolation via git worktrees or Docker containers, which helps ensure that each agent’s work is reproducible and shielded from unwanted interference, and it persists crash-safe state so tasks can resume if interrupted.
Simulates Gemini CLI, Antigravity, Qwen Code, and Kiro client
AIClient-2-API is a developer-focused tool that acts as a compatibility layer, simulating multiple AI client interfaces and translating them into standardized API requests compatible with OpenAI-style endpoints. It enables developers to connect various AI tools and clients, such as Gemini CLI, Qwen Code, or other proprietary interfaces, into a unified backend without needing to rewrite integrations. The system is designed to support high-throughput usage, handling large volumes of requests while maintaining compatibility across different AI ecosystems. It also provides access to alternative models, including built-in support for certain Claude-based functionalities, expanding flexibility for developers working with multiple providers. By abstracting away client-specific differences, it simplifies AI application development and reduces integration overhead.
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Codex Taskboard is a local-first issue board for organizing development work performed with Codex and related agent workflows. It runs in a browser and can also be embedded directly into Codex through a dedicated launcher or injection script. Projects and issues are stored locally in SQLite and can be managed through both a React interface and the taskctl command-line tool. A bundled Codex Skill teaches agents to inspect issues, change workflow states, verify work, and wait for user acceptance before marking tasks complete. The same local HTTP API powers both the graphical interface and CLI. Native desktop packaging bundles the service, interface, Skill, CLI wrapper, and injection tooling for easier operation. It supports local, LAN, and optional cloud-connected workflows while keeping local path handling on the device.
Meow is a CLI helper library for Node.js that simplifies the creation of command-line applications by parsing arguments and providing a user-friendly interface.
Trash CLI is a cross-platform command-line utility for moving files and folders to the operating system trash instead of permanently deleting them. It is designed as a safer alternative to using rm for everyday cleanup tasks. The command accepts individual paths as well as glob patterns, including exclusions for files that should be preserved. An optional dotfile setting allows glob patterns to include hidden files. Verbose mode prints the items that were moved, making scripted cleanup easier to inspect. It works on macOS, Linux, and Windows and can be installed globally through npm. Users can even alias rm to trash for a more reversible default deletion workflow.
Angular Webpack Starter is a starter kit or seed repository for building micro-frontends (MFE) or modular web applications, particularly using Angular, Webpack, and TypeScript (though it may support broader JavaScript setups). It aims to give developers a pre-configured project structure with best practices around file organization, build tooling (Webpack), hot module replacement (HMR), testing (Karma, Protractor), TypeScript configuration, linting, and environment setup. The idea is to accelerate the time to bootstrap a rich front-end web app with scalable structure, rather than starting from scratch. Because it is opinionated, it helps enforce architectural consistency in projects, especially when building complex frontend systems or multiple micro-frontends. Developers can clone this seed, adjust as needed, and focus on features rather than build plumbing.
Framework entry point bringing together all the sub-modules of Aurelia
Aurelia is a modern, front-end JavaScript framework for building browser, mobile, and desktop applications. It focuses on aligning closely with web platform specifications, using convention over configuration, and having minimal framework intrusion. Basically, we want you to just write your code without the framework getting in your way. This library is part of the Aurelia platform. It contains the aurelia-framework library, which brings together all the required core aurelia libraries into a ready-to-go application-building platform. Aurelia applications are built by composing a series of simple components. By convention, components are made up of a vanilla JavaScript or Typescript class, with a corresponding HTML template. Aurelia's standards-based, unobtrusive style makes it the only framework that empowers you to build components using vanilla JavaScript or TypeScript. If you know modern JS and HTML, there's little more to learn to build even the most complex apps.
The Aurelia 1 command line tool. Use the CLI to create projects
This library is part of the Aurelia platform and contains its CLI implementation. To keep up to date on Aurelia, please visit and subscribe to the official blog and our email list. We also invite you to follow us on twitter. If you have questions look around our Discourse forums, chat in our community on Gitter or use stack overflow. Documentation can be found in our developer hub. App skeleton is no longer in this repo, it has been moved to a dedicated repo aurelia/v1. Any contribution to the app skeleton should go into aurelia/v1. The au new command now simplifies wraps npx makes aurelia/v1. Users can directly use that makes command to create a new project.
CLI tool to process files and output the code blocks
CLI tool to process files and output the code blocks along with explanation, using various configuration options like API key, base URL, model name, and temperature.
An express generator for Yeoman, based on the express command line
An express-generator for Yeoman, based on the express command line tool. Make sure you have yo installed: npm install -g yo. Install the generator globally: npm install -g generator-express. Run: yo express and select Basic. Add --coffee if you require CoffeeScript. Run: grunt or gulp to run the local server at localhost:3000, the grunt/gulp tasks include live reloading for views, css in public/css and restarting the server for changes to app.js or js in routes/. Contributors are welcome, please fork and send pull requests! If you have any ideas on how to make this project better then please submit an issue.
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A reference implementation of GraphQL for JavaScript
The JavaScript reference implementation for GraphQL, a query language for APIs created by Facebook. GraphQL.js is a general-purpose library and can be used both in a Node server and in the browser. As an example, the GraphiQL tool is built with GraphQL.js! Building a project using GraphQL.js with webpack or rollup should just work and only include the portions of the library you use. This works because GraphQL.js is distributed with both CommonJS (require()) and ESModule (import) files. Ensure that any custom build configurations look for .mjs files! For practical applications, you'll probably want to run GraphQL queries from an API server, rather than executing GraphQL with a command line tool. GraphQL.js provides two important capabilities: building a type schema and serving queries against that type schema.
Practical patterns, starters & CLI tools for loop engineering with AI
Loop Engineering is a practical reference repository for designing loop-based workflows with AI coding agents. It focuses on replacing repeated manual prompting with systems that prompt, verify, schedule, and hand off work over time. The project is aimed at developers using tools such as Grok, Claude Code, Codex, Cursor, and other coding agents. It explains core building blocks such as scheduling, worktrees, skills, plugins, connectors, sub-agents, and persistent memory or state. The repository includes production loop patterns, quickstarts, starters, checklists, safety notes, and real-world stories. It also provides CLI tools such as loop-audit, loop-init, and loop-cost to scaffold, evaluate, and estimate agent loop workflows.
Command-line interface for building NativeScript apps
The NativeScript CLI lets you create, build, and deploy NativeScript-based apps on iOS and Android devices. NativeScript is a cross-platform JavaScript framework that lets you develop native iOS and Android apps from a single code base. The framework provides JavaScript access to the native APIs, user interface, and rendering engines of iOS and Android. By using JavaScript or TypeScript, you can create one project that builds into an iOS or Android app with completely native user experience. The NativeScript CLI is the command-line interface for interacting with NativeScript. It incorporates several important services.
Node Task List: Interactive cli to list and run package.json scripts
ntl (npm Task List) is an interactive CLI tool that helps developers run npm scripts quickly and efficiently. It provides a user-friendly interface to list and select scripts from the package.json file, making it easier to manage project commands without memorizing them.
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