Open Source JavaScript Software - Page 55
Sort By:
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.
-
$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.
-
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.
-
1
Baystation12
Baystation's flavor of Space Station 13
Baystation12 is a distinct gameplay-focused SS13 codebase emphasizing deep role-playing, lore cohesion, and immersive narrative set aboard the SEV Torch, with a dedicated developer and player community. For our purposes, the difference between these two licenses is that the AGPL requires you to make your source code available if you are hosting a game that uses Baystation source code in any way. The GPL instead allows you to (usually) remain closed source. Distinct lore tied to the Expeditionary Corps and futuristic frontier life. Requires specific BYOND build versions (e.g., 516.x) for server compatibility. -
2
Beatra
Advanced Discord v14.22 Music Bot with YouTube, Spotify, SoundCloud
MusicBot, also branded as Beatra, is an advanced Discord music bot built for Discord v14.22. It supports playback from YouTube, Spotify, SoundCloud, and direct audio links such as MP3, WAV, or OGG files. The bot includes dynamic “Now Playing” embeds with cover art, platform badges, queue countdowns, and localized metadata. Its queue system supports preloading, shuffle controls, playlist handling, loop modes, and genre-aware autoplay. The project also includes resilient playback features such as retry logic, voice connection monitoring, idle auto-disconnect, and graceful shutdown behavior. It is designed for server owners who want a full-featured music bot with slash commands, controls, localization, lyrics, caching, and source extensibility. -
3
BetterOneTab
A better OneTab for Chrome
Storing and grouping tabs are very useful. Onetab could help you to store the tabs you opened to free up your resources and remove clutter. But Onetab still lacks some features such as the simple list and just storing selected tabs. Since One tab it's not open source and because they update very rarely I decided to make a "Better" Onetab extension. If you used OneTab in the past, you can use Better Onetab like before. Expect to store all tabs from a window, you can also just store the tabs you selected. Better Onetab still provides the ability to store all tabs, store left or right tabs, and any others. And you can also use it from the context menu. Samely, you can also use "pin list" to keep a list that will not be removed, set the title of a list or drag to change the order of tabs. Even you can set the color of a list in the new version. You can change the "Behavior when icon is clicked" in the options page and enable or disable "simple popup list". -
4
Betwixt
Web debugging proxy based on Chrome DevTools network panel
Betwixt will help you analyze web traffic outside the browser using familiar Chrome DevTools interface. Download the latest release for your operating system, build your own bundle or run Betwixt from the source code. In order to capture traffic, you'll have to direct it to the proxy created by Betwixt in the background. -
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.
-
5
Blob.js
An HTML5 Blob implementation
Blob.js is a JavaScript compatibility layer that implements the web platform Blob interface in browsers that lack reliable native support. It allows applications to assemble binary or textual data from strings, arrays, typed arrays, and ArrayBuffer-based values. The library detects available browser capabilities and can fall back to vendor-specific BlobBuilder implementations when necessary. Its broader implementation also supplies compatible File, FileReader, and object URL behavior for older environments. Blob instances can expose size and media type information, create slices, and be read as text or array buffers. It is most useful for legacy web applications that generate files, process binary content, or work with client-side downloads. -
6
Bludit
Simple, Fast, Secure, Flat-File CMS
Bludit the Simple, Fast, and Flexible CMS. With Bludit, you can build your own website or blog in just seconds. It’s completely free, open-source, and easy to use. Bludit stores content in JSON format, eliminating the need for database installation or configuration. All you need is a web server with PHP support. As a Flat-File CMS, Bludit offers unparalleled flexibility and speed. Plus, with support for both Markdown and HTML code, creating and managing content has never been easier. -
7
Bootstrap 5 UI KIT
Bootstrap 5 & Material Design 2.0 UI KIT
Trusted by 2 000 000+ developers & designers. Used by companies & institutions. Super simple, 1 minute installation. Detailed docs & practical examples. Lots of tutorials. Plain JavaScript (but works also with jQuery). Huge and active community. MIT license, free for personal & commercial use. Simplicity and ease of use are key features of MDB 5 UI Kit. You need only one minute to install and run it. A slideshow component for cycling through elements, images or slides of text, like a carousel. Use MDB custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more. Indicate the loading state of a component or page with MDB spinners, built entirely with HTML, CSS, and no JavaScript. A card is a flexible and extensible content container. It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options. -
8
Bootstrap Colorpicker
Bootstrap Colorpicker is a modular color picker plugin for Bootstrap
Bootstrap Colorpicker is a modular color picker plugin for Bootstrap 4. The Bootstrap JS dependency is optional and it is mainly needed for the popover support. No Bootstrap CSS is required for the plugin to work. To use the plugin without Bootstrap, the popover option should be set to false or null and, depending on your implementation, you will usually need to set inline to true and a container selector option. Note that the plugin may work without Bootstrap if your code is not using any of the mentioned Bootstrap dependencies. Note that the dist files are only distributed via the NPM and Yarn installations. The initial color can be specified in 3 ways, input value, data-color attribute and programmatically with the color constructor option. Whenever the format option is 'auto', the first parsed color format will be detected and used as default, but when the option equals null (default), the format is recalculated every time. -
9
Bootstrap-Iconpicker
A simple icon picker
A simple iconpicker for Bootstrap 3.x and 4.x. Please note that this project is for Bootstrap 3.x and 4.x, including Glyphicons in Bootstrap 3.x. Other icon fonts that support: Elusive Icons, Font Awesome, Ionicons, Map Icons, Material Design Icons, Octicons, Typicons, Weather Icons, and Flag Icons. The CDN is updated after the release is made public, which means that there is a delay between the publishing of a release and its availability on the CDN. Within the download you'll find the following directories and files, logically grouping common assets and providing both compiled and minified variations. -
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.
-
10
Bootstrap-checkbox
A checkbox component based on Bootstrap framework
A checkbox component based on the Bootstrap framework. -
11
BottomSheetPickers
Third-party date and time pickers for Android
BottomSheetPickers is an Android UI library that provides alternative date and time picker components designed to replace the default system pickers with a more modern bottom sheet interface. It supports Android API level 14 and above, making it compatible with a wide range of devices, including older versions of Android. The library includes multiple picker styles such as number pad time pickers and grid-based pickers, offering different interaction models depending on the use case. These pickers are implemented as dialog fragments, allowing them to integrate smoothly into existing Android applications while maintaining lifecycle awareness. The library is built on top of Android support libraries and can be customized through various configuration options such as themes, callbacks, and builder patterns. Developers can easily handle user input through listener interfaces, enabling flexible integration with application logic. -
12
Bower
A package manager for the web
Bower offers generic, unopinionated front-end package management. It manages all the packages you need for a website, making sure they are all up-to-date and in the specific versions that you need. Bower can manage components that contain HTML, CSS, JavaScript, fonts or even image files. There’s no concatenating, minifying code or anything else - it just installs the right versions of the packages you need and their dependencies. How you use your packages will then be entirely up to you. Bower runs over Git and is package-agnostic, which means that a packaged component can be made up of any type of asset, and use any type of transport. -
13
BroadcastChannel
BroadcastChannel to send data between different browser-tabs or nodejs
BroadcastChannel is a JavaScript library for sending messages between different browser tabs, Node.js processes, and Deno Deploy instances. It provides a consistent communication layer for environments that need cross-context coordination without relying on a server. The library works completely client-side and offline in supported browser use cases. It is tested across old browsers, modern browsers, Web Workers, iframes, and Node.js. It also includes leader election over channels, which helps multiple contexts decide which one should perform a shared task. It is useful for multi-tab synchronization, offline-first applications, shared state coordination, and browser apps that need to avoid duplicated background work. -
14
Browserbase Skills
Claude Agent SDK with a web browsing tool
Browserbase Skills is a collection of reusable automation “skills” designed to enable AI agents to interact with web environments programmatically. It provides structured workflows that abstract browser actions such as navigation, form filling, and data extraction into composable building blocks. The system is intended to simplify the development of browser-based agents by offering prebuilt capabilities that can be orchestrated together. It integrates with headless browser infrastructure, allowing scalable automation across multiple sessions. The design emphasizes reliability and repeatability, reducing the complexity of handling dynamic web interfaces. It is particularly useful for building AI agents that perform tasks like scraping, testing, or workflow automation. Overall, it turns browser interaction into a modular and programmable skill system. -
15
Browserpass
Legacy Browserpass repo
Browserpass is a Chrome & Firefox extension for zx2c4's pass, a UNIX based password manager. It retrieves your decrypted passwords for the current domain and allows you to auto-fill login forms, as well as copy it to clipboard. If you have multiple logins for the current site, the extension shows you a list of usernames to choose from. Browserpass is a browser extension for zx2c4's pass, a UNIX based password store manager. It allows you to auto-fill or copy to clipboard credentials for the current domain, protecting you from phishing attacks. In order to use Browserpass you must also install a companion native messaging host, which provides an interface to your password store. It uses a native binary written in Golang to do the interfacing with your password store. Secure communication between the binary and the browser extension is handled through native messaging. -
16
Buttons 2.0
A CSS button library built using Sass and Compass
Buttons is a highly customizable production ready mobile web and desktop css button library. Buttons is a free open source project created using Sass. View the showcase demo to see the buttons in action. The showcase provides a full list of examples along with code snippets to speed up development. If you're using Bower you can run bower install Buttons. Buttons styles are now independent (ex. button-flat, button-3d, etc.). You can apply these styles and they will automatically pick up the color attached to the button (ex. button-primary button-3d). Button colors are now completely independent (ex. button-primary). We no longer have classes like button-flat-primary, so to achieve this you now simply add button-flat button-primary. To edit Buttons simply change values within the _options.scss file. After you make your edits recompile your sass file and your changes will get processed. -
17
Bytesize Icons
Tiny style-controlled SVG iconset (101 icons, 12kb)
Each icon is hand-coded along a 32x32 grid, and uses SVG stroke allowing for maximum style flexibility; meaning you can adjust the weight, color, size, and if you want the edges to be round or square. Either drop each icon inline directly in your page as-needed, or loaded them up via external .svg file and the use tag. You can then easily change the weight of the icon by changing stroke-width attribute. You can also change the shape of the line caps and the line joins with stroke-linecap and stroke-linejoin. This will change the style of the icons by making them rounded or squared off. All these stroke properties are also available to use in CSS. Since there is a 2px margin between the paths and viewBox, I recommend not having a stroke-width larger than 4px (or 12.5%). 4px might seems small but it's relative to the 32x32 grid. -
18
CCapture.js
A library to capture canvas-based animations at a fixed framerate
CCapture.js is a JavaScript library designed to capture high-quality recordings of HTML5 canvas animations at a fixed and consistent frame rate. Unlike traditional screen recording tools, it decouples rendering speed from capture speed, allowing developers to generate smooth video outputs even when frames take longer to compute. It works by overriding time-related browser functions such as requestAnimationFrame and Date.now to simulate a stable time progression, ensuring every frame is captured accurately. This approach enables the creation of high-resolution videos, slow-motion sequences, or complex visualizations without dropped frames. The library supports multiple export formats including WebM, GIF, PNG sequences, and JPEG archives, making it flexible for different workflows. It integrates easily into browser-based creative coding environments like Three.js and p5.js, making it especially valuable for artists and developers producing generative visuals. -
19
CF-Workers-docker.io
Docker Warehouse Image Proxy Tool
CF-Workers-docker.io is a project by cmliu that sets up a proxy for Docker Hub (and potentially other container image registries) using Cloudflare Workers, effectively acting as a middle-man mirror to improve image pull reliability and speed in regions where direct access is degraded. The idea is to intercept registry requests, reroute or mirror them through a worker endpoint, and therefore bypass regional limitations or firewall blocks affecting official Docker registries. Users can deploy their own copy of this proxy, point their Docker daemon’s registry-mirrors configuration to it, and benefit from an accelerated and more accessible image pull experience. The project’s README warns about possible policy risks—since Cloudflare’s terms forbid use of Workers for VPN or similar proxy services, so users deploy at their own risk. It also includes instructions for setting up both Docker daemon and containerd/podman equivalents by customizing configuration files. -
20
CNN Explainer
Learning Convolutional Neural Networks with Interactive Visualization
In machine learning, a classifier assigns a class label to a data point. For example, an image classifier produces a class label (e.g, bird, plane) for what objects exist within an image. A convolutional neural network, or CNN for short, is a type of classifier, which excels at solving this problem! A CNN is a neural network: an algorithm used to recognize patterns in data. Neural Networks in general are composed of a collection of neurons that are organized in layers, each with their own learnable weights and biases. Let’s break down a CNN into its basic building blocks. A tensor can be thought of as an n-dimensional matrix. In the CNN above, tensors will be 3-dimensional with the exception of the output layer. A neuron can be thought of as a function that takes in multiple inputs and yields a single output. The outputs of neurons are represented above as the red → blue activation maps. -
21
COINMON
The cryptocurrency price tool on CLI
Cryptocurrency price ticker CLI. Check cryptocurrencies' prices, and changes on your console. Best CLI tool for those who are both crypto investors and engineers. All data comes from coincap APIs. As coinmarketcap API is only free with API keys, we moved to use coincap API and disabled some features. It's simple to run coinmon on your local computer. You can pass parameters just like coinmon binary. -
22
This repository provides a set of hands-on CSS exercises that accompany the HTML and CSS modules in The Odin Project curriculum. The tasks are designed to be completed at specific points in the course, reinforcing each concept right after it is introduced. Learners are encouraged to use documentation and external resources freely, reflecting real-world workflows rather than rote memorization. Each exercise focuses on practical styling problems, from selectors and specificity to layout techniques like flexbox, grid, and responsive design. The structure supports incremental learning, allowing you to test your understanding, compare against expected outcomes, and iterate until styles match the intended result. While solutions exist, the guidance emphasizes problem solving with docs, search, and experimentation before peeking, cultivating independent debugging skills and confidence with CSS.
-
23
CSS Grid Generator
Generate basic CSS Grid code to make dynamic layouts
CSS Grid Generator is a visual tool built to help web designers and developers quickly create CSS Grid layout code without writing the grid definitions manually. You select the number of columns, rows, and units (e.g., fr, px, %), then visually drag and place items, resize them and position them within the grid to prototype layouts by hand. Once the layout is arranged, the tool generates the corresponding HTML and CSS you can copy into your project—thus bridging the gap between design and code. The interface supports drag-and-drop of “divs” into grid cells, and you can experiment with grid gaps, spans and layout refinements in real time. Because it removes the barrier of hand-writing complex grid-template or grid-area definitions, it’s particularly useful for designers who are less comfortable with CSS or want rapid prototyping of grid layouts. -
24
CSS Inspiration
Curated collection of interesting, creative, or inspiring CSS effects
CSS-Inspiration is a living gallery of modern CSS effects and components that highlights what’s possible with pure CSS and minimal markup. The collection ranges from micro-interactions and loaders to 3D transforms, complex backgrounds, hover states, and text effects, each presented as a small, self-contained demo. Source code is front and center, encouraging developers to study, copy, and tweak snippets for their own projects. Many examples lean on contemporary features—custom properties, filters, blend modes, gradients, and keyframes—serving as both inspiration and a practical cookbook. Because each demo focuses on a single idea, it’s an effective way to learn new techniques without wading through a full framework. The project thrives on experimentation and community interest, making it a frequent reference for designers, front-end engineers, and educators who want visually striking yet lightweight solutions. -
25
Cabal Desktop
Desktop client for Cabal
Cabal Desktop is a peer-to-peer, encrypted chat and file-sharing desktop application built on top of the Cabal protocol, designed for communities that value privacy, resilience, and decentralization. Unlike traditional messaging platforms, Cabal works offline-first and uses a distributed append-only log (similar to Secure Scuttlebutt) for data replication. All messages and content are shared directly between peers over local or internet connections without any central servers. It's ideal for activist groups, local networks, or anyone seeking a censorship-resistant communication tool with strong privacy guarantees.