Open Source JavaScript Software - Page 12
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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 Free Credits to Build on Google CloudPut your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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Cut Data Warehouse Costs by 54%BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
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Tower Building Game
HTML5 Canvas Tower Building Game
Tower Building Game is a small game project — likely implementing a classic “tower defense” or “tower-based” game — designed to showcase game-development fundamentals such as rendering, game logic, user interaction, and possibly simple physics or animations. As an open-source repository, tower_game aims not only to deliver a playable game, but also to serve as a learning resource or template: developers can inspect its code, understand how game loops, input handling, asset management, and state updates are organized. This makes it useful for programmers who are curious about games but don’t want to start from scratch. Because simple games often involve fewer dependencies and easier build processes than full-scale games, tower_game can be a good starting point for hobbyist developers, students learning programming or graphics, or for integration as a mini-game inside larger projects. Additionally, its open-source nature lets contributors fork and improve it. -
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Tutanota
Open source email service with a strong focus on security and privacy
Tutanota is an open source email client focused on security and privacy. It is built with end-to-end encryption and 2FA, so you can be assured of utmost email security. Tutanota is always encrypted, so whether you’re using their secure webmail client, mobile apps or desktop clients, you can be sure to communicate securely. -
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Undiscord
Delete all messages in a Discord server
Undiscord is a browser-based script and tool designed to mass-delete messages from Discord accounts, providing users with a way to clean up their message history in bulk. It operates by interacting with Discord’s web interface and APIs, automating the deletion process that would otherwise require manual removal of each message. The tool is typically executed through the browser console, making it accessible without requiring installation of standalone software. It allows users to filter messages based on criteria such as date, channel, or content, enabling more targeted cleanup operations. undiscord also includes rate limiting and delay mechanisms to reduce the risk of triggering platform restrictions during large deletion tasks. It is commonly used for privacy management, account cleanup, or removing outdated content. -
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jsPDF
HTML5 client solution for generating PDFs
The leading HTML5 client solution for generating PDFs. Perfect for event tickets, reports, certificates, you name it! PDFs are ubiquitous across the web, with virtually every enterprise relying on them to share documents. We created jsPDF to solve a major problem with how pdf files were being generated. We decided to make it open-source to allow a community of developers to expand on it. -
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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waterline
ORM for Node.js with support for mysql, mongo, postgres, mssql
It provides a uniform API for accessing stuff from different kinds of databases, protocols, and 3rd party APIs. That means you write the same code to get and store things like users, whether they live in Redis, mySQL, LDAP, MongoDB, or Postgres. Waterline strives to inherit the best parts of ORMs like ActiveRecord, Hibernate, and Mongoose, but with a fresh perspective and emphasis on modularity, testability, and consistency across adapters. Sails comes installed with a powerful ORM/ODM called Waterline, a datastore-agnostic tool that dramatically simplifies interaction with one or more databases. It provides an abstraction layer on top of the underlying database, allowing you to easily query and manipulate your data without writing vendor-specific integration code. Waterline query syntax floats above all that, focusing on business logic like creating new records, fetching/searching existing records, updating records, or destroying records. -
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FrontAccounting (FA) is a professional web-based Accounting system for the entire ERP chain written in PHP, using MySQL. FA is multilingual and multicurrency. For further information and more downloads, visit our website, http://frontaccounting.com.
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BPB-Worker-Panel
A GUI Panel providing Worker subscriptions for VLESS
BPB-Worker-Panel is a web interface for monitoring and managing distributed workers and task queues. It provides real-time statistics on job statuses, worker performance, queue lengths, and logs. Designed for systems using task handlers like Celery, Sidekiq, or custom job runners, the panel helps administrators visualize worker load, inspect tasks, and manually retry or delete them as needed. -
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Betterfox
Firefox user.js for optimal privacy and security
Betterfox is an opinionated configuration profile for Mozilla Firefox designed to improve everyday web browsing by making the browser faster, more private, and more secure without relying on external add-ons or third-party code. Rather than being a separate browser, it consists of a curated set of preference tweaks (user.js settings) that users apply to their Firefox profile to optimize performance and harden privacy settings. The project focuses on a minimal-impact, maximum-effect approach, removing unnecessary background services, reducing fingerprinting, and tightening security defaults while trying to keep sites usable. Betterfox recommends pairing these settings with essential extensions like ad blockers and DNS-level protections to achieve a well-rounded browsing experience. Because the preferences are text-based and version controlled, users can review and customize them to meet their own balance of privacy and convenience. -
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Google Assistant Unofficial Desktop
A cross-platform unofficial Google Assistant Client for Desktop
Google Assistant Unofficial Desktop Client is a cross-platform desktop client for Google Assistant based on Google Assistant SDK. The "Google Assistant Unofficial Desktop Client" is under development. So, if you find any bugs or have any suggestion, feel free to post an issue or a pull request. The design is inspired by Google Assistant in Chrome OS and comes in both Light Mode (beta) and Dark Mode. You can build the assistant on your machine if you prefer. If you don't want to build the project for yourself, you can download the Assistant Setup/Installer for the respective platform from here (releases). You can download it from other official sources as well. If you are on Windows 11, chances are you have winget pre-installed. If you are on older version of Windows (Windows 10) and don't have it installed, check out Install Winget documentation section to learn how to install it. -
Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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Kokoro
An inference library for Kokoro-82M
Kokoro is an open-weight text-to-speech model and inference library built around the lightweight Kokoro-82M model. It is designed to generate high-quality speech from text while staying fast, compact, and cost-efficient compared with larger TTS systems. The project is useful for developers who want deployable speech synthesis without depending on a closed platform. It can be installed as a Python package and used in applications, scripts, experiments, or production workflows. Kokoro’s Apache-licensed weights make it flexible for personal, research, and commercial use cases. Its main value is delivering practical, accessible voice generation with a small model footprint and a simple developer workflow. -
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Orange ORM
The ultimate ORM for Node and Typescript
Orange ORM is a lightweight, reflection-free ORM for Go that emphasizes performance and direct control. It provides a SQL-like fluent API and struct tagging system to map Go structs to database tables. Orange ORM supports PostgreSQL, MySQL, and SQLite, making it suitable for fast, embedded, or minimal-dependency applications. -
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Phoenix Code Editor
Phoenix is a modern open-source Code Editor for the web
Phoenix is a modern open-source and free software code editor for the web, built for the browser. -
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Plugins
Curated collection of Codex plugin examples
OpenAI Plugins is a curated collection of Codex plugin examples. It is designed to show developers how plugins can be structured, packaged, and extended for Codex-based workflows. Each plugin follows a consistent layout with a manifest and optional supporting surfaces such as skills, commands, hooks, assets, agents, and MCP configuration. The repository is useful for developers who want practical references instead of abstract plugin documentation alone. It demonstrates how different plugin components can work together to add specialized behavior to an AI coding environment. Its main value is helping builders understand how to create reusable Codex extensions with clear organization and predictable project conventions. -
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Prettier
Opinionated Code Formatter
Prettier is an open source, opinionated code formatter that basically takes all the original styling of your code and enforces a consistent code style through parsing and reprinting following its own rules. It takes the maximum line length into account, wrapping code if needed. Prettier makes writing code in one consistent style automatic, painless and so much easier. No need to spend so much time, effort and mental energy discussing styles or formatting your code. Simply press save and your code is formatted. Prettier supports several languages including JavaScript, TypeScript, JSON, CSS, HTML and more. It also integrates with most editors (Atom, Visual Studio, Vim, Espresso and more). -
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Screenity
The most powerful screen recorder & annotation tool for Chrome
Screenity is a feature-packed screen and camera recorder for Chrome. Annotate your screen to give feedback, emphasize your clicks, edit your recording, and much more. Make unlimited recordings of your tab, desktop, any application, and camera. Annotate by drawing anywhere on the screen, adding text, and creating arrows. Highlight your clicks, focus on your mouse, or hide it from the recording. Individual microphone and computer audio controls, push to talk, and more. Custom countdowns, show controls only on hover, and many other customization options. Export as mp4, gif, and webm, or save the video directly to Google Drive. Make sure the language you want to translate Screenity into is supported by the Chrome Store. Before submitting the pull request, it would be helpful if you tried running the extension in the new language, to make sure everything looks right. -
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Uptime Kuma
A fancy self-hosted monitoring tool
Uptime Kuma is an easy-to-use self-hosted monitoring tool. It is a temporary live demo, all data will be deleted after 10 minutes. Use the one that is closer to you, but I suggest that you should install and try it out for the best demo experience. Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / Ping / DNS Record / Push / Steam Game Server / Docker Containers. Notifications via Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP), and 90+ notification services, click here for the full list. -
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civitai
Open platform for sharing and discovering Stable Diffusion models
Civitai is an open source project that provides the codebase for a platform designed to share and manage generative AI models used for image generation. It focuses primarily on models compatible with Stable Diffusion and related technologies, allowing creators to upload, organize, and distribute custom AI models and related resources. These resources can include textual inversions, hypernetworks, aesthetic gradients, and variational autoencoders that modify or extend the capabilities of diffusion-based image generation systems. Civitai encourages collaboration by allowing users to publish their models, explore models created by others, and learn from the techniques used in the community. It also supports user accounts, model browsing, and interaction features that help creators showcase their work and receive feedback from other users. Developers can deploy the project to run their own instance of the platform and integrate with its available API to retrieve models. -
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ego (lite)
The fastest browser for AI agents to run web automation
Ego Lite is a macOS browser designed for people and external AI agents to work in parallel. Each agent receives an isolated Space, allowing several browser tasks to run simultaneously without taking over the user's active tabs. Optional Chrome data migration carries over logins, cookies, extensions, and bookmarks so agents can use authenticated sessions with less setup. The ego-browser skill connects tools such as Codex, Claude Code, Cursor, and custom agent CLIs to the browser. Agents interact through JavaScript tools for navigation, snapshots, form entry, clicks, waiting, and captures. Browser data remains on the device, and users can observe, stop, or take control of an agent's Space. Windows and Linux versions are listed as future work rather than currently supported releases. -
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h265web.js
A HEVC/H.265 Web Player
h265web.js is a WebAssembly-powered video decoding library designed to enable playback and processing of H.265/HEVC video streams directly in web browsers without relying on native browser codec support. It provides a low-level decoding API that allows developers to build custom video players capable of handling raw H.265 streams, which are typically not widely supported natively in browsers. The project includes components for parsing H.265 bitstreams into NAL units and decoding them into raw YUV frames that can then be rendered onto a canvas or processed further. Its architecture separates parsing, decoding, and rendering, giving developers fine-grained control over how video data is handled and displayed. The system is designed to work with streaming data, allowing incremental feeding of video chunks and real-time decoding, which is useful for surveillance, streaming platforms, and custom media pipelines. -
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FET_EDIT_PRINT_MOROCCO
Advanced editor and printer for FET timetables.
تطبيق ويب متقدم لعرض وتعديل وطباعة جداول الحصص التي تم إنشاؤها بواسطة برنامج FET، مع ميزات محسنة ومخصصة لنسخ FET بالنمط الرسمي و النظام المغربي (صباح-مساء). ====== An advanced web application for viewing, editing, and printing timetables created by the FET program, with enhanced features customized for official FET versions and the Moroccan system (morning-afternoon). Available in three languages: French, Arabic, and English. Version V1.4.2— August 2026 ✨ What's new re-importing a file edited in FET under the same name now shows the changes — the application asks whether to restore the saved work or start from the file; and each automatic backup can be deleted one by one from the Data tab. -
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Just-API
Test REST, GraphQL APIs
Just-API is a declarative, specification-based test framework for REST, GraphQL APIs. Users can test APIs without writing code, but they can also tap into code when they want to. It reads API test specifications from YAML files and runs them in serial/parallel mode. Test reports can be generated in several formats including HTML and JSON. In simple terms, users build a test suite by providing a set of request and response validation specification in a YAML file. Each suite can have one or more specs. Just-API builds the request, sends it to the server and validates the response as per the specification. Runs test suites in parallel/serial mode. Supports all widely used HTTP methods. Supports x-www-form-urlencoded requests, Multipart requests, File uploads. Built-in Response Validation Constructs(Headers, Cookies, Status code, JSON body, JSON schema) Custom Response validator functions. Supports running custom inline or module javascript sync/async functions. -
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LaVague
Framework for building AI agents that automate complex web tasks
LaVague is an open source framework designed to help developers build AI-powered web agents capable of automating tasks across websites and web applications. It implements the concept of a Large Action Model framework, allowing agents to interpret a user-provided objective and translate it into a sequence of actions performed in a browser. These agents can navigate web pages, retrieve information, fill out forms, and execute multi-step workflows automatically. LaVague is centered around a World Model that analyzes the current webpage state and determines the next set of instructions, combined with an Action Engine that converts those instructions into executable automation code. It can use browser automation tools such as Selenium or Playwright to interact with websites programmatically. Developers can integrate various language models and configure the agent’s reasoning and execution behavior to suit different automation scenarios. -
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Pencil
The Pencil Project's unique mission is to build a free tool
Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in popular desktop platforms. The latest stable version of Pencil is 3.1.0 which contains stability fixes and many new features. More details can befound in the releaste notes. Pencil provides various built-in shapes collection for drawing different types of user interface ranging from desktop to mobile platforms. Starting from 2.0.2, Pencil is shipped with Android and iOS UI stencils pre-installed. This makes it even easier to start protyping apps with a simple installation. Starting from 2.0.2 Pencil has even more shape collections included by default. The list of built-in collections now includes general-purpose shapes, flowchart elements, desktop/web UI shapes, Android and iOS GUI shapes. -
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SingleFile
Web Extension for saving a copy of complete web page in a single file
Web Extension for Firefox/Chrome/MS Edge and CLI tool to save a faithful copy of an entire web page in a single HTML file. SingleFile is a Web Extension (and a CLI tool) compatible with Chrome, Firefox (Desktop and Mobile), Microsoft Edge, Vivaldi, Brave, Waterfox, Yandex Browser, and Opera. It helps you to save a complete web page into a single HTML file. Wait until the page is fully loaded. Click on the SingleFile button in the extension toolbar to save the page. You can click again on the button to cancel the action when processing a page. Open the context menu by right-clicking the SingleFile button in the extension toolbar or on the webpage. It allows you to save the current tab, the selected content, the selected frame. With auto-save active, pages are automatically saved every time after being loaded (or before being unloaded if not). Right-click on the SingleFile button and select "Manage extension" (Firefox) / "Options" (Chrome) to open the options page. -
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TailAdmin
Free and Open-source Tailwind CSS Dashboard Admin Template
TailAdmin is a free and open source admin dashboard template built with Tailwind CSS, designed to help developers quickly create data-driven web applications and backend interfaces. It provides a complete starting point for dashboards, including prebuilt pages, layouts, and UI components that are commonly required in admin panels and control systems. The template is built using a combination of HTML, Tailwind CSS, Alpine.js, and modern build tools, making it lightweight while still offering interactive functionality. TailAdmin includes essential features such as charts, tables, authentication forms, and navigation components, enabling developers to assemble full dashboards without starting from scratch. It also supports multiple frameworks, including React, Next.js, Vue, Angular, and Laravel, making it highly adaptable to different development stacks. With responsive design and dark mode support built in, it ensures usability across devices and environments.