Open Source JavaScript Software - Page 53
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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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$300 Free Credits for Your Google Cloud ProjectsLaunch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
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Quill
Your powerful rich text editor
Quill is a powerful, free and open source WYSIWYG editor made for the modern web. Equipped with modern architecture and an expressive API, it’s highly compatible, extensible and customizable to fit any need. With granular access to editor content, changes and events, and consistent solid performance with JSON as both input and output, developers will find working with Quill a wonderful experience. Quill works with all modern browsers on desktops, tablets and phones, and delivers a consistent behavior and HTML across all platforms. It’s being used in numerous projects already, from small to large Fortune 500 ones. See how well Quill can fit into your own project! -
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React Native for Web
React Native Components and APIs for the Web
React Native for Web is an accessible implementation of React Native's Components and APIs that is interoperable with React DOM. Accessible HTML. Support different devices and input modes, render semantic tags. High-quality interactions. Support gestures and multiple input modes (touch, mouse, keyboard). Reliable styles. Rely on scoped styles and automatic vendor-prefixing. Support RTL layouts. Responsive containers. Respond to element resize events. Incremental adoption. Interoperates with existing React DOM components. Bundle only what you use. React Native for Web is used in production web apps by Twitter, Flipkart, Uber, Major League Soccer, and many others. It also powers web support in multi-platform React projects such as Expo, React Native Elements, React Native Paper, and React Native Base. -
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Requestly
A Powerful API Mocking and Testing Tool
Most Popular developer tool for frontend developers & QAs to debug web and mobile applications. Redirect URL (Switch Environments), Modify Headers, Mock APIs, Modify Response, Insert Scripts & Report Bugs with debugging sessions. Bring the power of Charles Proxy, Fiddler & Postman together with beautiful, modern UI & collaboration features. Available as a browser extension on all major browsers & desktop apps on all platforms. Requestly is an Open-Source platform for front-end developers with essential tooling & integrations that helps them write, test & debug their code 10x faster. Requestly reduces dependency on backend devs and environments for development & testing needs. Using Requestly, devs can create mock, test, validate & override API responses, modify request & response headers, set up redirects (Map local, Map remote), and use Requestly sessions for faster debugging. -
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Rivet
Visual AI IDE for building agents with prompt chains and graphs
Rivet is an open source visual AI programming environment designed to help developers build complex AI agents using a node-based interface and prompt chaining workflows. It provides a desktop application that allows users to visually construct and debug AI logic as interconnected graphs, making it easier to manage sophisticated interactions between language models and external tools. Rivet also includes a TypeScript library that enables these visual graphs to be executed and integrated directly into applications, bridging the gap between prototyping and production use. Rivet supports multiple large language model providers and integrates with services such as embeddings and transcription systems, allowing developers to create richer AI-powered features. Its architecture emphasizes composability, where different components like prompts, APIs, and data processing steps can be combined into reusable pipelines. -
Custom VMs From 1 to 96 vCPUs With 99.95% UptimeLive migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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Roll Call
Free and reliable audio calls for everyone w/ browser p2p
roll-call is a lightweight, browser-based video conferencing tool built entirely with WebRTC and peer-to-peer technologies. It requires no backend server or user authentication, making it ideal for impromptu meetings, remote collaboration, or privacy-conscious communication. Users simply share a unique room URL, and connections are established directly between participants. With minimal setup and no data retention, roll-call emphasizes simplicity, accessibility, and decentralization. -
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Share.js
Share with one click to Weibo, QQ Space, QQ Friends, WeChat, Tencent
share.js is a lightweight social sharing library for adding one-click share buttons to web pages. It supports platforms such as Weibo, Qzone, QQ, WeChat, Tencent Weibo, Douban, Facebook, Twitter, LinkedIn, Google+, and Diandian. The project provides a front-end sharing solution based on social share URLs rather than a heavy backend service. It can be used with or without jQuery, making it flexible for older web projects and simple static pages. The maintainer notes that the project is no longer actively modernized, but its approach remains useful because social sharing often comes down to constructing platform-specific links. It is best suited as a compact reference or legacy-ready sharing component. -
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Simple Icons
SVG icons for popular brands
Over 2400 Free SVG icons for popular brands. Icons can be downloaded as SVGs directly from our website - simply click the download button of the icon you want, and the download will start automatically. Icons can be served from a CDN such as JSDelivr or Unpkg. Simply use the simple-icons npm package and specify a version in the URL. All icons are imported from a single file, where [ICON SLUG] is replaced by a capitalized slug. We highly recommend using a bundler that can tree shake such as webpack to remove the unused icon code. The icons are also available through our Packagist package. -
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SingleFileZ
Web Extension for Firefox/MS Edge and CLI tool
SingleFileZ is a fork of SingleFile that allows you to save a webpage as a self-extracting HTML file. This HTML file is also a valid ZIP file that contains the resources (images, fonts, stylesheets, and frames) of the saved page. This ZIP file can be unzipped on the filesystem in order, for example, to view the page in a browser that would not support pages saved with SingleFileZ. To open saved pages from the filesystem in a Chromium-based browser, SingleFileZ must be installed and the option "Allow access to file URLs" must be enabled in the details page of the extension. Otherwise, the browser must be started with the switch. To open saved pages from the filesystem in Safari, the option "Disable Local File Restrictions" must be selected in the "Develop" menu. SingleFileZ is available on Firefox, Chrome and Microsoft Edge. You can save web pages to HTML from the command line interface. -
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Size Limit
Calculate the real cost to run your JS app or lib
Size Limit is a JavaScript performance budget tool that measures the real cost of your JavaScript bundle and prevents regressions by enforcing limits in CI. It calculates not just raw bundle size, but also download and execution time under configurable network conditions, giving a more realistic sense of what users experience. The tool is modular: it offers a CLI and multiple plugins (file, webpack, time) plus presets tailored to different use cases, from big single-page apps to small npm libraries. When integrated with GitHub Actions, CircleCI, or other CI systems, it runs on every commit or pull request, failing the pipeline if a change exceeds the configured budget. It can also annotate pull requests with comments that highlight how the bundle changed, making performance regressions visible to reviewers early. With the --why flag, size-limit can analyze what contributes most to bundle size and show a dependency breakdown (using Statoscope). -
Enterprise-grade ITSM, for every businessFreshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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SmallCode
AI coding agent optimized for small LLMs. 87% benchmark
SmallCode is a terminal-native AI coding agent optimized for local models running on consumer hardware. It is designed to extract useful coding performance from smaller LLMs, especially models in the 7B to 20B range. The project focuses on making local coding assistance practical without requiring massive cloud-hosted models for every task. Its workflow is built around terminal usage, which makes it suitable for developers who prefer command-line control and local project context. smallcode emphasizes efficient agent behavior, careful tool use, and benchmark-driven improvements for constrained models. Its main value is giving developers a compact coding-agent environment that treats small local models as first-class tools. -
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Smoothie Charts
Smooth JavaScript charts for realtime streaming data
Smoothie Charts is a small JavaScript charting library built for real-time streaming data. It focuses on smooth live updates instead of charts that visibly jump every time new data arrives. Developers can create a TimeSeries object, attach it to a SmoothieChart, and stream the chart into an HTML canvas element. Data points can be appended continuously, making it useful for dashboards, monitoring tools, server metrics, sensors, and other live feeds. The project includes examples, documentation, an interactive builder, and installation options through npm, Yarn, Bower, or direct JavaScript usage. Overall, it is a lightweight option for adding fluid, browser-based streaming charts. -
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SoundCleod
SoundCloud for macOS and Windows
SoundCleod is a desktop application that brings SoundCloud to macOS and Windows without using a web browser. Compared to using SoundCloud.com in a web browser like Chrome or Firefox you will get extras when using SoundCleod. Dark mode, desktop notifications. Control playback using media keys on the keyboard. True full screen without browser buttons. Control playback from the Notification Center using the Now Playing widget on macOS. Control playback from the macOS application menu. Stop playback when your computer goes to sleep. Close or hide all windows without interrupting playback. SoundCleod is an open source project built by Márton Salomváry released under MIT license. -
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Speed-Test
Test your internet connection speed and ping using speedtest.net
Speed-Test is a command-line tool that allows users to measure their internet connection speed directly from the terminal, providing a quick and convenient way to assess download and upload speeds. -
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State Transition Plugin for Phaser
State transition plugin for Phaser.js
Phaser State Transition is a plugin that facilitates smooth transitions between game states in Phaser. It allows developers to define custom animations and easing functions when switching scenes, enhancing the visual flow of games. -
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Swing
A swipeable cards interface
Swing is a JavaScript library designed to create realistic swipeable card interfaces similar to those popularized by dating applications. It provides physics-based animations that simulate natural movement when users drag and release cards, enhancing user interaction and engagement. The library allows developers to build interfaces where elements can be swiped left, right, or in other directions, triggering specific actions. It is highly customizable, enabling control over thresholds, directions, and animation behavior. Swing is lightweight and framework-agnostic, making it easy to integrate into different web projects without heavy dependencies. It is commonly used for building interactive UI components such as recommendation systems or decision-based interfaces. Overall, swing offers a simple yet powerful way to implement gesture-driven interactions in web applications. -
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TW Elements
Huge collection of Tailwind MIT licensed (free) components
TW Elements is a large collection of UI components, templates, and plugins built specifically for Tailwind CSS, designed to extend its functionality with interactive and pre-designed elements. It provides hundreds of ready-to-use components, including forms, buttons, navigation elements, and layout blocks, enabling developers to build complete interfaces quickly. Unlike basic Tailwind utilities, TW Elements adds interactivity through JavaScript-powered components such as modals, dropdowns, and carousels, making it more feature-rich. The library includes a design system called Material Minimal, which combines elements of Material Design with a more refined and modern aesthetic. It supports easy theming and customization using Tailwind’s configuration system, allowing developers to adapt styles to their branding needs. TW Elements can be integrated into various frameworks and environments, including React, Vue, and standard HTML projects, with simple installation methods via npm or CDN. -
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Tabulator
Interactive tables and data grids for JavaScript
Tabulator allows you to create interactive tables in seconds from any HTML Table, Javascript Array or JSON formatted data. Simply include the library and the css in your project and you're away! Tabulator has an enormous number of features to help customize your table experience to your needs. With new features released every month, there is bound to be something to get your interactive table juices flowing. Tabulator is built to work with all the major front-end JavaScript frameworks including React, Angular and Vue. Header filters and programmatic filters can be set independently allowing you to use a header filter to further restrict the rows shown in an already filtered data set. If an input element is used as the filter element, the table will be filtered in real-time as the user types in the input element. To prevent excessive redrawing of the table Tabulator will wait 300 milliseconds after the user has finished typing before triggering the filter. -
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Taiko
A node.js library for testing modern web applications
Taiko is an open-source Node.js library designed to automate modern web browsers and simplify the process of end-to-end testing for web applications. It provides a concise JavaScript API that allows developers to control browsers programmatically and create automated test scripts that simulate real user interactions with websites. The tool was developed by the team behind the Gauge testing framework and focuses on reliability and readability in browser automation workflows. Taiko works with Chromium-based browsers such as Chrome, Microsoft Edge, and Opera, and can also interact with Firefox, enabling developers to test modern web interfaces across multiple environments. The library includes intelligent element selection capabilities that automatically locate elements on the page, reducing the need for fragile CSS selectors or XPath expressions. -
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The Stream Detector
A Firefox addon for keeping track of manifests
The Stream Detector is a browser extension and utility designed to detect and identify media streams embedded within web pages, particularly those using streaming protocols such as HLS or DASH. It scans network requests and extracts stream URLs, allowing users to access underlying media sources that may not be directly visible. The tool is useful for developers, researchers, and media enthusiasts who need to analyze streaming behavior or capture media sources. It supports integration with external tools such as FFmpeg or download managers for further processing. The system provides a user interface that lists detected streams and allows interaction with them. It is lightweight and operates in real time as users browse web content. Overall, it simplifies the discovery and extraction of streaming media sources from web applications. -
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Toolkit for YNAB
A general purpose YNAB enhancing browser extension for Chrome
Toolkit for YNAB is a browser extension that enhances your experience with the YNAB Web Application. YNAB have released an exciting new web version. Lots of power users of the older versions are asking for options that are easily implemented in a browser extension. Rather than ask the YNAB team to implement these features, let's just do it ourselves! The Toolkit is available for Chrome and Firefox. The extension is built using Browser (Web) Extension APIs which means support for Edge should be imminent as well. Since the extension is built with Web Extensions and that is not supported by Safari, the extension itself is not supported on Safari. When/if Safari decides to support Web Extensions we will do what we can to provide support for their browser. We've decided that it's better to use the latest and greatest than to wait for browsers to support all the nice newer syntax landing in Javascript. -
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Topcoat
CSS for clean and fast web apps
Performance is our #1 goal. Every component we design is benchmarked for performance. You can see our results. We have the building blocks to get you up and running fast. Our growing set of components were born from CSS. We love our theme, but we don’t want to hit your brand over the head with it. Just add colors and voila! We believe CSS is ready for primetime. We are basing our architecture on BEM make your apps faster, less contextual and easier to manage. The first open source font family contribution from Adobe, Source Sans Pro. It is served on Adobe Edge Web Fonts and Adobe Typekit. We created over 100 icons to go with Topcoat. You can use them as SVG, PNG or semantic icon font. And yes, they are also open source. -
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Tree Style Tab
Tree Style Tab, Show tabs like a tree.
This extension to Firefox provides the ability to work with tabs as "trees". New tabs opened from the current tab are automatically organized as "children" of the current tab. Such "branches" are easily folded (collapsed) by clicking on the arrow shown in the "parent" tab, so you no longer need to suffer from too many visible tabs. If you want, you can restructure the tree via drag and drop. Such a tree of tabs will behave like a visual browsing history for you. For example, if you see a list of search results for a topic, each search result link will open in new child tab. New tabs opened from these "child" tabs will appear as descendants of their originating tabs. You'll easily dig and dig deeply, without losing your browsing trail - if you want to go back to the original search result, you just have to switch to the "root" tab. Moreover, each tree will reflect a group of tabs on a similar topic. -
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Trystero
Serverless WebRTC matchmaking for painless P2P
Serverless WebRTC matchmaking for painless P2P: make any site multiplayer in a few lines. Trystero manages a clandestine courier network that lets your application's users talk directly with one another, encrypted and without a server middleman. To establish a direct peer-to-peer connection with WebRTC, a signalling channel is needed to exchange peer information (SDP). Typically this involves running your own matchmaking server but Trystero abstracts this away for you and offers multiple "serverless" strategies for connecting peers (currently BitTorrent, Firebase, and IPFS). -
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Twitter-Post-Fetcher
Fetch your twitter posts without using the new Twitter 1.1 API
Allows you to get your tweets displayed on your website using JavaScript, without using new Twitter 1.1 API. Recently I was quite frustrated to find out that the old API on Twitter was depreciated and the overhead in setting up a system to perform OAUTH just to get my already publicly available tweets was too damn high. Even worse I couldn't find any simple solutions for JavaScript. All code examples were server-side. So after much thinking, I invented the following solution. It makes use of the over-bloated widgets Twitter gives us to put on our sites, cuts out all the nonsense (and nonsemantic markup), and returns to you your raw tweet text so you can do with it as you please and style it how you want on your own website - like it should be. Instructions on how to get it working with your tweets are in the code comments, just do what it says! Enjoy! -
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Typora Plugin
Typora plugin. Feature enhancement tool
A plugin framework for the Typora markdown editor that allows users to extend its functionality by adding custom features and enhancements.