Open Source JavaScript Software - Page 33
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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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$300 in Free Credit Towards Top Cloud ServicesStart your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.
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AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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HumanLayer
Open source IDE for orchestrating AI coding agents in large codebases
HumanLayer is an open source development environment designed to help developers orchestrate and manage AI coding agents working within complex software projects. It provides a framework and tooling that allow AI agents to research, plan, and implement changes in large codebases while maintaining structured workflows. It focuses on enabling AI-assisted development through coordinated agent workflows rather than isolated code generation tasks. HumanLayer integrates with modern AI models and coding assistants to automate tasks such as code research, planning, and implementation while maintaining a structured development process. HumanLayer introduces advanced context management techniques that help AI agents understand large repositories and operate effectively across multiple tasks. It also supports collaborative workflows where developers and AI agents can work together with human oversight and control. -
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Hydejack
A boutique Jekyll theme for hackers, nerds, and academics
Hydejack's cover page on a variety of screens. Hydejack is a boutique Jekyll theme for hackers, nerds, and academics, with a focus on personal sites that are meant to impress. It includes a blog that is suitable for both prose and technical documentation, a portfolio to showcase your projects, and a resume template that looks amazing on the web and in print. Ever since the introduction of Dark Mode, link styles have been a bit of an issue. Specifically, finding an accent color that worked on both light and dark backgrounds was the problem. With Hydejack 9, the link style has been revamped so that legibility is no longer tied to the choice of accent color, giving you much more freedom in creating a unique design flavor for your site. -
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HyperExpress
High performance Node.js webserver with a simple-to-use API
HyperExpress aims to be a simple yet performant HTTP & Websocket Server. Combined with the power of uWebsockets.js, a Node.js binding of uSockets written in C++, HyperExpress allows developers to unlock higher throughput for their web applications with their existing hardware. This can allow many web applications to become much more performant on optimized data serving endpoints without having to scale hardware. High-performance Node.js webserver with a simple-to-use API powered by uWebsockets.js under the hood. -
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IGdm Messenger
Desktop application for Instagram DMs
Multi-platform Desktop application for Instagram DMs, built with electron Build Status! To setup this project locally for development purposes please follow the following steps. Ensure you Node.js installed. Clone this repo by running the command - git clone. Navigate to the directory where the repo is cloned to. (e.g cd igdm). Run npm install to install all the dependencies. Start the application locally by running npm start. -
Fully Managed MySQL, PostgreSQL, and SQL ServerCloud SQL handles your database ops end to end, so you can focus on your app.
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IPFS Web UI
A frontend for an IPFS node
A web interface to IPFS, shipped with Kubo, and ipfs-desktop. Check on your node stats, explore the IPLD powered merkle forest, see peers around the world and manage your files, without needing to touch the CLI. When working on the code, run an ipfs daemon, the local dev server, the unit tests, and the storybook component viewer and see the results of your changes as you save files. If you need to run IPFS in a Docker container, you can still have Web UI available by exposing both the Gateway and Web UI ports. The end-to-end tests (E2E) test the full app in a headless Chromium browser. They spawn real IPFS node for HTTP API and a static HTTP server to serve the app. The purpose of those tests is not being comprehensible, but act as a quick regression and integration suite. -
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Immutable.js
Immutable collections for JavaScript
Immutable.js offers a collection of Persistent Immutable data structures for JavaScript. Immutable data is unchangeable once created, which makes application development so much simpler. There’s no defensive copying, and you get advanced memoization and change detection techniques with simple logic. Persistent data gives you a mutative API, one that doesn’t update data in-place but always produces new and updated data. The data structures that Immutable.js provides include List, Stack, Map, OrderedMap, Set and more. These structures are highly efficient on modern JavaScript VMs, and minimize the need to cache or copy data. -
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JS JOSE
JavaScript library to encrypt/decrypt data in JSON Web Encryption
JavaScript library to encrypt/decrypt data in JSON Web Encryption. -
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Jasmine
A JavaScript Testing Framework
Jasmine is a behavior-driven JavaScript development framework for running both browser and Node.js tests. It’s been tested to work on most versions of popular browsers including Safari, Chrome, Firefox, and Internet Explorer. Jasmine does not rely on any other JavaScript frameworks, browsers or DOM, making it suitable for websites, Node.js projects, or just about anywhere that JavaScript can run. Jasmine has everything you need out of the box to test your code, yet retains a low overhead and absolutely no external dependencies. This means, of course, that it is fast. It has a clean, obvious syntax that makes writing tests a breeze. -
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JavaScript localStorage
A simple, lightweight JavaScript API for handling browser localStorage
A simple, lightweight JavaScript API for handling browser local storage, it is easy to pick up and use has a reasonable footprint of 2.08kb(gzipped: 0.97kb), and has no dependencies. It should not interfere with any JavaScript libraries or frameworks. -
Application Monitoring That Won't Slow Your App DownFull APM with errors, performance, logs, and uptime monitoring. 99.999% uptime SLA on the platform itself.
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JavaScript30
30 Day Vanilla JS Challenge
JavaScript30 is an open source repository created by Wes Bos that provides a 30-day coding challenge to help developers strengthen their vanilla JavaScript skills. It includes starter files and completed solutions for each daily project, covering a wide range of practical exercises like clocks, video players, geolocation apps, and more. The challenge avoids frameworks and libraries, focusing purely on core JavaScript. Each project introduces hands-on coding tasks that reinforce DOM manipulation, events, APIs, and browser features. The repository also encourages learners to share their own solutions and improvements, fostering a strong community around the challenge. With its incremental structure, it’s a popular resource for building confidence and fluency in JavaScript. -
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Jest Puppeteer
Run your tests using Jest & Puppeteer
Most continuous integration platforms limit the number of threads one can use. If you have more than one test suite running puppeteer chances are that your test will timeout. This is because jest will try to run puppeteer in parallel and the CI platform won't be able to handle all the parallel jobs in time. A fix to this is to run your test serially when in a CI environment. Users have discovered that running test serially in such environments can render up to 50% of performance gains. Writing integration test can be done using Puppeteer API but it can be complicated and hard because API is not designed for testing. Debugging tests can be hard sometimes and it is very useful to be able to pause tests in order to inspect the browser. Jest Puppeteer exposes a method jestPuppeteer.debug() that suspends test execution and gives you the opportunity to see what's going on in the browser. -
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Jitsi Meet
Secure, simple and scalable video conferences application
Go ahead, video chat with the whole team. In fact, invite everyone you know. Jitsi Meet is a fully encrypted, 100% open source video conferencing solution that you can use all day, every day, for free — with no account needed. Head over to meet.jit.si and see the service in action before you decide whether you’d like to run your own instance. For those interested, check out the meet.jit.si terms of service and privacy policy. Yep, it’s free — and it’s technologically advanced, too. In fact, Jitsi Meet sounds better, thanks to HD audio with Opus; is anonymous, no need for an account, ever! It also keeps conversations private with encryption by default (and advanced security settings) and is developer-friendly, modify and customize it to your heart’s content. It’s 100% open source. Trade messages and emojis while you video conference, with integrated chat. -
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Jitsi Meet Electron
Jitsi Meet desktop application powered by electron
Desktop application for Jitsi Meet built with Electron. End-to-End Encryption support (BETA). Works with any Jitsi Meet deployment. Builtin auto-updates. Remote control (currently disabled due to security issues). Always-On-Top window. A warning will show up mentioning the app is unsigned upon first install. This is expected. On macOS Catalina a warning will be displayed on first install. The app won't open unless "open" is pressed. This dialog is only shown once. Note that screen-sharing is currently not supported under Wayland, eg. the permissions prompt may loop endlessly. The json files are for all the strings inside the application and can be translated. New translations require the addition of a line in index.js. -
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Kage
Kage is Graphical User Interface for Metasploit Meterpreter
Kage is Graphical User Interface for Metasploit Meterpreter and Session Handler. Kage (ka-geh) is a tool inspired by AhMyth designed for Metasploit RPC Server to interact with meterpreter sessions and generate payloads. Please follow the instructions to get a copy of Kage running on your local machine without any problems. electron-vue officially recommends the yarn package manager as it handles dependencies much better and can help reduce final build size with yarn clean. For now it only supports windows/meterpreter & android/meterpreter. -
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KaibanJS
JS-native framework for building and managing multi-agent systems
JavaScript-native framework for building multi-agent AI systems. Multi-agent AI systems promise to revolutionize how we build interactive and intelligent applications. However, most AI frameworks cater to Python, leaving JavaScript developers at a disadvantage. KaibanJS fills this void by providing a first-of-its-kind, JavaScript-native framework designed specifically for building and integrating AI Agents. Harness the power of specialization by configuring AI agents to excel in distinct, critical functions within your projects. This approach enhances the effectiveness and efficiency of each task, moving beyond the limitations of generic AI. Just as professionals use specific tools to excel in their tasks, enable your AI agents to utilize tools like search engines, calculators, and more to perform specialized tasks with greater precision and efficiency. -
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Kibana
Your window into the Elastic Stack
Kibana is a analytics and search dashboard for Elasticsearch that allows you to visualize Elasticsearch data and efficiently navigate the Elastic Stack. With Kibana you can visualize and shape your data simply and intuitively, share visualizations for greater collaboration, organize dashboards and visualizations, and so much more. -
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Kity Minder
Baidu brain map
KityMinder is another masterpiece of the f-cube group (formerly the UEditor group) of the Baidu FEX team. As an online brain map editing tool, it has an interactive experience no less than the native brain map tool. At the same time, it gives full play to the advantages of web cloud storage, and can directly synchronize the edited brain map to the cloud. In addition, with the original "cloud disk sharing" function, users can directly generate an online link from the currently edited brain map with one click and share it with other users to achieve seamless communication. KityMinder is implemented based on SVG technology and supports most major browsers. -
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Koalerplate
Simple Koa Boilerplate for APIs
A simple Koa 2 boilerplate for API's using ES6. -
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Kubernetes Goat
Kubernetes Goat is a "Vulnerable by Design" cluster environment
Learn to attack or find security issues, misconfigurations, and real-world hacks within containers, Kubernetes, and cloud-native environments. Enumerate, exploit, and gain access to the workloads right from your browser. Understand how attackers think, work, and exploit security issues, and apply these learnings to detect and defend them. Also, learn best practices, defenses, and tools to mitigate, and detect in the real world. Learn the hacks, defenses, and tools. So that you can think like an attacker, and secure your Kubernetes, cloud, and container workloads right from the design, code, and architecture itself to prevent them. Use Kubernetes Goat to showcase the effectiveness of the tools, product, and solution. Also, educate the customers and share your product or tool knowledge in an interactive hands-on way. -
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Learn Git Branching
An interactive git visualization and tutorial
LearnGitBranching (LGB) is a Git repository visualizer, sandbox, and interactive tutorial platform that teaches Git concepts through visualization and gamified challenges. Instead of only typing commands into the terminal, users see a live commit tree update dynamically as they experiment with branching, merging, rebasing, and more. It features both sandbox mode for free exploration and structured levels to guide learners through Git fundamentals and advanced workflows. Designed entirely client-side in JavaScript, it can run in the browser or be self-hosted, with additional support for creating and sharing custom levels. -
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Ledger Live
Ledger Live (Desktop)
Ledger Live is a new generation wallet desktop application providing a unique interface to maintain multiple cryptocurrencies for your Ledger Nano S / Blue. Manage your device, create accounts, and receive and send crypto assets. Ledger Live is a hybrid desktop application built with Electron, React, Redux, RxJS,.. and highly optimized with a ledger-core C++ library to deal with blockchains (sync, broadcast,..) via ledger-core-node-bindings. It communicates to Ledger hardware wallet devices (Nano X / Nano S / Blue) to verify address and sign transactions with ledgerjs. Some logic is shared with live-common. Ledger Live releases are signed. The automatic update mechanism makes use of the signature to verify that each subsequent update is authentic. Buy crypto directly and securely with our partners through Ledger Live. We support Bitcoin, Ethereum, XRP, and lots more. Safely send and receive 1,800+ coins and tokens directly with your smartphone or computer using Ledger Live. -
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Lemon AI
Full-stack Open-source Self-Evolving General AI Agent
LemonAI is an open-source full-stack framework for building autonomous AI agents capable of performing complex tasks such as research, programming, data analysis, and document processing. The platform is designed to run primarily on local infrastructure, providing a privacy-focused alternative to cloud-dependent agent platforms. It integrates with local large language models through tools such as Ollama, vLLM, and other model runtimes while also allowing optional connections to external cloud models. The system includes a multi-agent architecture that supports planning, action execution, reflection, and memory, allowing the agent to reason through tasks and refine results iteratively. A key component of the framework is a virtual machine sandbox environment that safely executes code generated by the agent without affecting the host system. -
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LibreSign
Nextcloud app to sign PDF documents
Simplify your digital signatures and document management safely and efficiently. Beyond offering agility and security in digital signatures and document management, LibreSign features functionalities that adapt to the specific needs of your organization. Keep your documents secure with end-to-end encryption and multi-factor authentication, ensuring protection throughout the electronic document signing process. Hybrid signatures streamline negotiation processes, offering flexibility in choosing between personal or system-generated digital certificates for signing documents digitally with LibreSign. LibreSign revolutionizes document authenticity verification with QR Code, ensuring security, efficiency, and practicality. Its instantaneous validation, agility, transparency, and compatibility with various platforms make it perfect for sustainable businesses. -
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Lightning Design System for React
Salesforce Lightning Design System for React
Accessible, localization-friendly, presentational React components. The Lightning Design System for React is an implementation of the Lightning Design System with accessible patterns and established best practices. The source code is licensed under BSD 3-Clause. For a no hassle setup and compatibility with Create React App, transpiled ES6 and CommonJS module versions have been included within the NPM package. If using this setup, please re-write the import statement in the documentation site examples. Advanced usage requires that your babel presets are set up correctly. create-react-app and environments that do not transpile code within node_modules are not compatible with the component import below. All the examples on the documentation site use this syntax. You can use the Babel preset, @salesforce/babel-preset-design-system-react, to get started. This preset will keep Babel compatible with Design System React and allow ES6 module benefits such as tree-shaking. -
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Linkify
JavaScript plugin for finding links in plain-text and converting them
Linkify is a JavaScript plugin. Use Linkify to find links in plain text and convert them to HTML tags. It automatically highlights URLs, #hashtags, @mentions and more. Detect URLs and email addresses #hashtag, @mention and #-ticket plugins. React and jQuery support. Multi-language and emoji support. Custom link plugins. Fast, accurate, and small footprint (~20kB minified, ~11kB gzipped) 99% test coverage. Compatible with all modern browsers (Internet Explorer 11 and up). By default Linkify will only detect and highlight web URLs and e-mail addresses. Plugins for @mentions, #hashtags and more may be installed separately.
