Open-source alternatives to OverlayScrollbars

Buildbot is a Python-based continuous integration framework and distributed build orchestrator. It functions as a build automation engine that coordinates the retrieval of source code, the execution of build steps, and the reporting of results through a central controller and a network of remote worker agents. The system is distinguished by a plugin-based extensibility architecture and a master-worker distribution model. It allows for dynamic build modification at runtime and supports a pluggable database backend for persisting system state and historical build data. The project covers a bro

This project is a .NET Core content management system and multi-site management platform designed to organize and publish structured digital content across independent websites from a centralized interface. It functions as both a headless CMS and a static site generator, rendering dynamic templates into HTML files to increase loading speed and scalability. The system integrates retrieval-augmented generation to transform website documents and content into searchable AI knowledge bases. It includes a visual AI workflow orchestrator to define the logic between user queries and large language mo

Piwigo is a modular, open-source photo gallery and media management platform built as a PHP web application. It provides a self-hosted environment for organizing, managing, and displaying digital image collections through a web browser. The system is distinguished by its plugin-based architecture, which allows the core functionality to be extended with third-party themes and functional extensions. It leverages artificial intelligence for automatic image content recognition and tagging to automate the categorization of large libraries. The platform covers a wide range of capabilities includin

Rivet is a visual LLM workflow designer and AI agent orchestration engine. It serves as a development environment for building retrieval augmented generation pipelines and a TypeScript library for embedding visual AI graphs and prompt logic into JavaScript applications. The system differentiates itself through a node-based editor that maps data flow between language models, vector databases, and external APIs. It provides specialized tools for prompt engineering, including interfaces for iterative prompt refinement and A/B testing to improve model response quality. The platform covers a broa

Pico is a lightweight PHP content manager and Markdown website generator that functions as a flat-file CMS. It transforms Markdown files into a structured website by using the server file system for URL routing and avoids the use of a relational database for storing content and metadata. The system is distinguished by its support for multilingual website deployment and a static site cache that saves rendered pages as HTML to reduce server load. It employs a Git-based content workflow to synchronize and deploy updates across different environments. The platform covers a broad range of capabil

Custom scrollbars vanilla javascript library with native scroll, done simple, lightweight, easy to use and cross-browser.

React custom scrollbars is a user interface component built for React applications that replaces native browser scrollbars with custom-styled tracks and thumbs. It maintains consistent visual appearance across different platforms and browsers while generating matching markup on both server and client environments to support server-side rendering without layout shift. The library provides comprehensive styling options by overriding default track, thumb, and view elements with custom components, CSS classes, or inline styles. It handles layout adjustments by resizing container dimensions dynami

iCheck is a custom form input library that replaces native checkboxes and radio buttons with customizable visual wrappers. It ensures a uniform visual experience across different browsers by masking native form elements and rendering custom HTML structures. The project provides a common interface that functions across both jQuery and Zepto. It includes a dynamic styler that detects and applies custom styles to form elements added to a page after the initial load. The library incorporates an accessibility layer that injects ARIA attributes and keyboard event listeners to ensure custom inputs

Foundation Sites is a responsive front-end framework providing a collection of CSS and JavaScript tools to build websites that automatically adapt to different screen sizes and devices. It functions as a responsive design library and cross-browser UI toolkit, offering a grid layout system and pre-styled interface components to ensure consistent rendering across modern web browsers. The framework enables rapid front-end UI prototyping and the integration of interactive components through a scripting interface that manages the lifecycle of UI plugins. It supports custom CSS framework management

This project is a CSS framework and styling layer that applies Bootstrap visual styles to jQuery UI components. It functions as a cross-library bridge to unify the visual identity of these two libraries, ensuring jQuery UI widgets match a consistent Bootstrap-based design system. The framework resolves visual and functional conflicts between the libraries through selector-based style injection and theme mapping. It uses a layered integration approach to attach standardized CSS classes to elements rendered by the widget library, preventing style collisions. The project covers a wide range of

iscroll is a JavaScript smooth scrolling library and web interaction framework. It provides a 2D web panning controller and a CSS transform zoom engine to manage inertial scrolling, panning, and zooming for web elements across different devices. The project enables the implementation of custom scrollbar interfaces and navigation maps that track the current viewport position. It supports the creation of interactive web carousels with element snapping, web parallax effects, and content scaling via pinch-to-zoom or mouse-wheel inputs. The library covers a broad range of interaction capabilities

RuneLite is an open-source game client for OldSchool RuneScape. It serves as a community-driven alternative to the official software, functioning as a modified client that allows for deep customization and feature extension. The project provides a programmable game plugin system that enables the development and injection of custom tools directly into the running game environment. This framework allows for the creation of interface enhancements and the integration of custom logic to modify client behavior. The system also includes a game cache data manager for reading and manipulating local a

EmDash is an open-source content management system built on Astro that combines a visual admin panel with a plugin-driven architecture and server-side rendering. It provides a complete content management system with structured content modeling, a rich text editor using Portable Text format, and a TypeScript API for type-safe content queries. The system supports authentication through passkeys, OAuth 2.1, and external providers, with role-based access control and fine-grained permission scopes. What distinguishes EmDash is its plugin development framework, which supports both native plugins ru

This project is a collection of management interfaces and platforms for network-connected hardware. It functions as a firmware extension platform, a network storage operating system manager, and a network routing administrator. The system enables the installation of open-source plugins and third-party add-ons to expand device capabilities. It provides a management interface for network attached storage, allowing for remote file management and peer-to-peer media streaming. Broad capabilities cover network routing configuration through policy-based routing and dynamic DNS, as well as firmware

This project is a jQuery plugin that replaces native browser scrollbars with themed, customizable versions supporting both vertical and horizontal axes. It provides a navigation layer designed to ensure unified scrolling behavior across mouse, keyboard, and touch-enabled devices. The plugin allows for the modification of scrollbar rails and draggers using CSS and pre-set themes to maintain cross-browser UI consistency. It enables control over the physical feel of navigation through adjustable momentum, snapping, and mouse-wheel acceleration. The system includes capabilities for programmatic

Material Web is a framework-agnostic library of reusable user interface components built on native browser standards. It provides a collection of interactive elements that follow official design system specifications, enabling the creation of consistent and accessible interfaces across diverse web applications. The library utilizes custom elements and shadow DOM to ensure style encapsulation and component logic isolation. By leveraging native browser APIs, it maintains design integrity and functional consistency across all major web browsers and varying screen sizes. The project supports ent

Material UI is a comprehensive component-based library designed to accelerate the construction of professional, accessible web interfaces. It provides a centralized design system framework that manages visual tokens, typography, and color palettes to ensure consistent branding and layout constraints across complex application architectures. By encapsulating behavioral and accessibility logic within modular primitives, the library enables developers to build inclusive user experiences that adhere to rigorous design standards. The project distinguishes itself through a zero-runtime styling engi

vue-bits is a Vue component library and animated UI kit providing a collection of pre-built interface elements and text effects. It functions as a source-code distribution system for adding motion and interactivity to web pages. The project includes a command line installer that enables the targeted extraction of specific component source code directly into a local project directory. This CLI-driven approach allows for the integration of UI elements without relying on traditional package installation. The library covers animated UI development and frontend component management, using prop-dr

Masonry is a JavaScript library for arranging elements of varying heights into a grid without vertical gaps. It serves as a DOM element positioner and dynamic layout manager that calculates and applies absolute coordinates to HTML elements based on available vertical space. The system functions as a responsive grid engine using percentage-based widths to maintain consistent structures across different screen sizes. It includes capabilities to recalculate grid positions after images load or browser windows resize to prevent element overlap. The library covers grid management and positioning,

Hamburgers is a CSS component library providing a collection of animated navigation icons. These components use CSS transitions to toggle between collapsed and active states, serving as reusable style definitions for interactive user interface elements. The library features customizable UI icons where colors and dimensions are controlled via CSS configuration variables. This allows for the modification of icon appearance and style during the build process. The project covers the implementation of animated menu navigation and responsive web interface design through the use of frontend visual

Bubble-Card is a customizable UI framework and custom card for Home Assistant dashboards. It provides a system for building interactive smart home interfaces using JavaScript templates and CSS variables to create state-aware components. The project is distinguished by its use of JavaScript dashboard templating to dynamically update icons, colors, and text in real-time based on entity states. It includes a modular CSS style manager for creating and sharing reusable style modules and functional logic to maintain visual consistency across multiple cards. The framework covers smart home device c

Mythic is a red teaming framework and command and control server designed for managing post-exploitation activities. It provides a centralized system for issuing tasks and receiving telemetry from agents deployed across diverse target platforms and operating systems. The platform features a collaborative operator interface that allows multiple security researchers to coordinate operations and track target activity within a shared environment. It supports the deployment and updating of diverse agent payloads through a multi-platform payload manager. The framework utilizes a plugin-based archi

EasyBangumi is an anime streaming management application for Android that aggregates content from multiple external sources into a single interface. It enables users to search for titles, manage a personal library of favorite series, and stream video content from various third-party providers. The application features a plugin-based extension system that allows for the integration of external media providers via repository links or dedicated installation files. This architecture enables the addition of new content sources and capabilities without modifying the core binary. The platform inclu

Countly is a self-hosted product analytics and engagement platform that tracks user behavior across mobile, web, and desktop applications. It collects and analyzes device properties, user actions, and session lifecycle data to understand engagement patterns, while also providing crash reporting, push notification delivery, and A/B testing capabilities. The platform is designed for privacy-first deployment, with built-in consent management and the ability to run entirely on private infrastructure. The platform distinguishes itself through its comprehensive feature set that combines analytics w

html-to-markdown is a tool that transforms HTML content and websites into Markdown text. It functions as an HTML to Markdown converter and a command line processor for converting files or standard input streams into Markdown documents. The project is an extensible conversion engine that allows for custom element rendering and the registration of plugins to modify the transformation process. It includes a content filter that uses CSS selectors to include or exclude specific HTML elements during conversion. The system covers broad capability areas including link resolution for relative URLs, r

LapisCV is a PDF document generator and resume builder designed to convert structured Markdown text into professional curriculum vitae. It functions as a rendering pipeline that transforms simple markup and variables into print-ready documents using a headless browser engine or LaTeX templates. The project provides a collection of professional themes and visual styles to customize the typography and branding of academic and professional resumes. It utilizes variable-based style injection to allow for the adjustment of fonts, colors, and margins based on content volume and user preferences. T

go-flutter is a runtime and embedding library that enables Flutter applications to run natively on Windows, macOS, and Linux using Go and GLFW. It implements the Flutter Embedding API to render Flutter UIs on desktop platforms, providing a cross-platform desktop runtime that bridges Go and Dart code through standard Flutter method and event channels. The project includes a plugin framework that supports bidirectional communication between Go and Dart, allowing Go code to invoke Dart handlers and expose Go methods for Dart to call, with optional synchronous replies. It also provides event stre