Open Source JavaScript Software - Page 38
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JavaScript Software
Browse free open source JavaScript Software and projects below. Use the toggles on the left to filter open source JavaScript Software by OS, license, language, programming language, and project status.
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Build Agents and Models on One PlatformGemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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Build Securely on AWS with Proven FrameworksMoving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
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baoyu-design
Run Claude Design locally as an Agent Skill
baoyu-design is an Agent Skill that lets local coding agents produce polished visual design artifacts. It packages Claude Design-style methodology for environments such as Cursor, Claude Code, Codex, Claude Desktop, and other file-capable agents. The skill can generate UI mockups, prototypes, wireframes, landing pages, dashboards, mobile app screens, and slide decks as self-contained HTML. It keeps outputs inside the local project, so artifacts can be versioned, edited, previewed, and refined without uploading work to a separate design website. The repository includes core design instructions, harness-specific references, built-in skills, starter components, and local preview guidance. It is useful for developers and designers who want agent-assisted product design inside their own editor workflow. -
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bfxr
Flash + AIR sound effects generator. Based on Sfxr.
The bfxr project by increpare is a sound-effects generator tool originally built using Flash + AIR, based on the earlier Sfxr project. Its purpose is to enable users, especially game developers and sound designers, to quickly generate retro, 8-bit/“chiptune” style sound effects (“bleeps”, “booms”, “zaps”, etc.) without deep knowledge of audio signal processing. It offers an interactive GUI through which you can tweak many parameters (oscillators, envelopes, filters, etc.) to sculpt custom sound effects; you can preview in real time, export, and iterate. The project includes libraries, HTML templates, and both ActionScript and JavaScript code. It has been well-received (over a thousand stars), but as of 2025, it has been superseded by a newer version called bfxr2, which is a JavaScript reworking of the original. -
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bors-ng
A merge bot for GitHub Pull Requests
bors-ng is a GitHub merge bot that enforces an “evergreen” main branch by queueing approved pull requests, testing them together on a staging branch, and only advancing main with the exact, passing commit set. Instead of maintainers repeatedly rebasing and merging one PR at a time, bors-ng batches r+-ed PRs, triggers your existing CI (e.g., GitHub Actions), and merges automatically when the batch is green. If a batch fails, it bisects the batch into smaller runs to isolate the culprit, landing the good PRs and kicking only the failing one(s) back for fixes. The bot is implemented as a GitHub App and works alongside—rather than replacing—your CI by reporting commit statuses/checks and acting on PR comments like bors r+ or bors try. It provides a dashboard to watch queue progress, uses separate staging/trying branches for merge/test cycles, and supports both public GitHub and GitHub Enterprise endpoints. -
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cabal-cli
Terminal client for Cabal, the p2p chat platform
cabal-cli is a terminal-based client for Cabal, a peer-to-peer chat platform that operates without centralized servers. It allows users to create and join decentralized chat channels, ensuring privacy and resilience against censorship. The CLI interface provides a lightweight and efficient means of communication, particularly suited for developers and tech-savvy users. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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cache-pug-templates
Cache Pug templates for Lad/Koa/Express/Connect with Redis
Cache Pug templates for Lad/Koa/Express/Connect. -
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clsx
A tiny utility for constructing `className` strings conditionally
clsx is a tiny JavaScript utility (roughly a few hundred bytes) for constructing className strings conditionally, commonly used in React and other component frameworks. It is intended as a faster and smaller drop-in replacement for the popular classnames package, but with a minimalistic API and implementation. The function accepts any number of arguments in a variety of forms: strings, numbers, arrays, and objects where truthy values indicate which classes to include. It then returns a deduplicated, space-separated class string that can be applied directly to HTML or JSX className attributes. The library is distributed in multiple formats (ESM, CommonJS, and UMD) so it works well in bundlers, Node environments, and direct tags. Because it has zero dependencies and a stable API, it is widely used in both small projects and large production codebases where bundle size is a concern. -
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cookie
HTTP server cookie parsing and serialization
Basic HTTP cookie parser and serializer for HTTP servers. This is a Node.js module available through the npm registry. Installation is done using the npm install command. Parse an HTTP Cookie header string and return an object of all cookie name-value pairs. The str argument is the string representing a Cookie header value and options is an optional object containing additional parsing options. Specifies a function that will be used to decode a cookie's value. Since the value of a cookie has a limited character set (and must be a simple string), this function can be used to decode a previously-encoded cookie value into a JavaScript string or other object. The default function is the global decodeURIComponent, which will decode any URL-encoded sequences into their byte representations. -
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create-ts-lib
Create-ts-lib: A Starter Kit and a CLI to create your TypeScript
TypeScript Webpack Starter is a boilerplate setup for building modern JavaScript applications with TypeScript and Webpack. It provides a structured foundation for scalable frontend and backend projects. -
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eslint-plugin-jsx-a11y
Static AST checker for a11y rules on JSX elements
Static AST checker for accessibility rules on JSX elements. This plugin does a static evaluation of the JSX to spot accessibility issues in React apps. Because it only catches errors in static code, use it in combination with axe-core/react to test the accessibility of the rendered DOM. Consider these tools just as one step of a larger a11y testing process and always test your apps with assistive technology. If you installed ESLint globally (using the -g flag in npm, or the global prefix in yarn) then you must also install eslint-plugin-jsx-a11y globally. To enable your custom components to be checked as DOM elements, you can set global settings in your configuration file by mapping each custom component name to a DOM element type. Enforce all elements that require alternative text have meaningful information to relay back to the end user. -
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git-cz
Semantic Git commits
git-cz is a command-line tool designed to guide developers in writing structured, conventional commits. Rather than manually typing commit messages, this tool prompts you to select commit types, scopes, and write descriptions according to a defined format. It integrates with the popular commitizen ecosystem so that when you run npx git-cz or similar, you are prompted through a workflow instead of free-form message. The project emphasises consistency and readability in commit history, helping teams enforce semantic or conventional commit message formats. It supports custom configuration (for example via a changelog.config.js file) so you can adapt the prompts or types to your project’s conventions. Because it is open source (licensed under Unlicense) it can be freely integrated within CI pipelines or commit hooks to standardise message formats. -
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graceful
Gracefully exit HTTP servers (Express/Koa/Fastify/etc), databases
Gracefully exit HTTP servers (Express/Koa/Fastify/etc), databases (Mongo/Mongoose), Redis clients, Bree job schedulers, and custom handlers. See the Express, Koa, Fastify, or Other code snippet examples and Instance Options. You can pass Instance Options to customize your graceful handler (e.g. if you have more than one server, or wish to close both a Redis connection and a server at the same time). -
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grd
A CSS grid framework using Flexbox. Only 321 bytes (Gzipped)
A CSS grid framework using Flexbox. Simple and provides just 2 base classes Grid and Cell and some modifiers. Light-weight, only 321 bytes (Gzipped). Flexible, easy-to-use Flexbox features. Flexible Box Layout Module and calc() as CSS unit values used in Grd are available on modern browsers (Chrome, Firefox, Safari, Opera, Edge, and IE11). If you want to use Grd with Sass, you can choose grd-sass as Sass port. -
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handbrake-js
Video encoding / transcoding / converting for node.js
handbrake-js is a Node.js wrapper around the HandBrake CLI tool, designed to bring powerful video transcoding capabilities into JavaScript applications. It provides a programmatic interface for converting video files from nearly any format into modern codecs using HandBrake’s encoding engine. The library allows developers to build automation workflows for media processing without directly interacting with command-line tools. It supports multiple output formats such as MP4 and MKV and includes compatibility across major operating systems. handbrake-js relies on an installed HandBrakeCLI binary and exposes its functionality through asynchronous JavaScript APIs. It is commonly used in backend services and automation pipelines that require reliable video conversion. Overall, it serves as a bridge between HandBrake’s capabilities and Node.js environments. -
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hiproxy
hiproxy is a lightweight proxy tool for Front-End developers
hiproxy is a lightweight web proxy tool based on Node.js. The primary purpose of hiproxy is to solve the problem of host management and reverse proxy needs of developers. For example, if you are working as a team and each of the developers in the team need a different proxy setting, you will no longer need to modify your hosts file or use a web server like Nginx as a reverse proxy. hiproxy extends the syntax of hosts file to support port numbers. Besides, hiproxy also supports configuration through a syntax similar to the Nginx configuration file. To develop your web projects in a local development environment, you’ll have to run a back-end server (such as a Node.js express application, or a Java SpringBoot application). As a front-end developer, you might not be familiar with the back-end technology stack, simply setting up the development environment can consume a lot of your time. -
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ipfs-car
Convert files to content-addressable archives and back
Convert files to content-addressable archives and back. ipfs-car is a library and CLI tool to pack & unpack files from Content Addressable aRchives (CAR) file. A thin wrapper over @ipld/car and unix-fs. Content-addressable archives store data as blocks (a sequence of bytes) each prefixed with the Content ID (CID) derived from the hash of the data; typically in a file with a .car extension. Use ipfs-car to pack your files into a .car; a portable, verifiable, IPFS-compatible archive. -
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ipfs-deploy
Zero-Config CLI to Deploy Static Websites to IPFS
Upload static websites to IPFS pinning services and optionally update the DNS. The goal of ipfs-deploy is to make it as easy as possible to deploy a static website to IPFS. -
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jqGrid
jQuery grid plugin
jqGrid is an Ajax-enabled JavaScript control that provides solutions for representing and manipulating tabular data on the web. Since the grid is a client-side solution, loading data dynamically through Ajax callbacks, it can be integrated with any server-side technology, including PHP, ASP, Java Servlets, JSP, ColdFusion, and Perl. Improve the maxGridHeigh method. Add a third parameter to indicate the minimum height at which the method run. jqGrid uses a jQuery JavaScript Library and is written as a plug-in for that package. JqGrid was developed by Tony Tomov at Trirand Inc., a software development firm based in Sofia. Trirand specializes in the development of web components and embraces free and open standards like jQuery, ThemeRoller, & jQuery UI. Tony got the idea for jqGrid when he needed an easy way to represent database information in a project. The first requirement was speed and the second, was independence from server-side technology and the database backend. -
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kubo-rpc-client
A client library for the Kubo RPC API
A client library for the Kubo RPC API. Loading this module through a script tag will make it's exports available as KuboRpcClient in the global namespace. This client is still a work in progress and in active development. Please refer to ipfs-http-client for now and only use this package if you are aware of the implications. -
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lint-staged
Run linters on git staged files
Run linters against staged git files and don't let anything slip into your code base! Linting makes more sense when run before committing your code. By doing so you can ensure no errors go into the repository and enforce code style. But running a lint process on a whole project is slow, and linting results can be irrelevant. Ultimately you only want to lint files that will be committed. This project contains a script that will run arbitrary shell tasks with a list of staged files as an argument, filtered by a specified glob pattern. Linter commands work on a subset of all staged files, defined by a glob pattern. lint-staged uses micromatch for matching files. The concept of lint-staged is to run configured linter tasks (or other tasks) on files that are staged in git. lint-staged will always pass a list of all staged files to the task, and ignoring any files should be configured in the task itself. -
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microStudio
Free, open source game engine online
microStudio is a free, open source game engine online. It is also a platform to learn and practice programming. microStudio can be used for free. You can also install your own copy, to work locally or on your own server for your team or classroom. microStudio is available online, this is the simpler and the preferred way, you will have access to all the online collaboration features, online publishing, and more export features. You don't even need to create an account, you can start working as a guest. microStudio includes all you need to write code, create sprites and maps for your 2D game. All from your web browser. Your project is stored in the cloud, and accessible from anywhere. Write your game code in microScript, a simple language inspired by Lua. The documentation is always there to help. Create cool demos in just a few lines of code. microScript shines by its simplicity and interactivity. But you can also code in JavaScript, Python, or Lua if you prefer. -
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mustache.js
Minimal templating with {{mustaches}} in JavaScript
Logic-less templates. mustache.js is a zero-dependency implementation of the mustache template system in JavaScript. Mustache is a logic-less template syntax. It can be used for HTML, config files, source code - anything. It works by expanding tags in a template using values provided in a hash or object. We call it "logic-less" because there are no if statements, else clauses, or for loops. Instead there are only tags. Some tags are replaced with a value, some nothing, and others a series of values. Tags are indicated by the double mustaches. {{person}} is a tag, as is {{#person}}. In both examples, we'd refer to person as the key or tag key. All variables are HTML escaped by default. If you want to return unescaped HTML, use the triple mustache: {{{name}}}. You can also use & to unescape a variable: {{& name}}. This may be useful when changing delimiters (see "Set Delimiter" below). -
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ndm
npm desktop manager
Add, remove, and update global and local packages with ease. Edit projects in place, snapshots, and projects history comfort. Launch npm commands and scripts, doesn't matter if you're on breakfast. Useful package information and live npm registry status. -
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newpipeextractor
Library for extracting streaming site data without official APIs
NewPipeExtractor is an open source Java library designed to extract data from streaming platforms by analyzing their web interfaces instead of relying on official APIs. It serves as the core extraction component used by the NewPipe Android application, but it is built as a standalone library that can also be integrated into other software projects. NewPipeExtractor provides a unified framework for retrieving information such as video streams, playlists, channels, and search results from supported streaming services. It handles many low-level tasks involved in web data extraction, including parsing responses, managing platform-specific logic, and handling errors, allowing developers to focus on implementing application features rather than scraping mechanics. Each supported service is implemented through its own extractor components that conform to a common interface, enabling consistent access to data across different platforms. -
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next-update
Tests if module's dependencies can be updated to latest version
Next-Update is a command-line tool that helps developers test the latest versions of their npm dependencies to identify updates that work without breaking their projects. -
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nippleJS
A virtual joystick for touch capable interfaces
A virtual joystick for touch-capable interfaces. Import it the way you want into your project. Your joystick's container has to have its CSS position property set, either absolute, relative, static. You can configure your joystick in different ways. The dom element in which all your joysticks will be injected. You can listen events both on the manager and all the joysticks. But some of them are specific to its instance. When listening on the manager, you can also target a joystick in particular by prefixing the event with its identifier.
