Open-source alternatives to Clipboard.js

Maccy is a lightweight clipboard manager for macOS that captures and stores text and images copied to the system clipboard. It provides a searchable interface for retrieving historical content, allowing users to access previously copied items through a keyboard-driven workflow. The application distinguishes itself by prioritizing privacy and performance through automated filtering and local data management. It employs pattern matching to identify and exclude sensitive information, such as passwords, from being saved. All history is maintained in a local database, with an in-memory index that

Slap is a terminal-based text editor designed to mimic the user experience and interface of a graphical code editor within a command-line environment. It functions as both a text editor and a text-user interface file manager, providing a navigable sidebar for organizing and switching between files and directories. The editor is built for extensibility through a plugin system that allows the loading of external scripts and packages to add new features and core functionality. Users can customize the editor workflow by remapping keyboard shortcuts, adjusting performance parameters, and modifying

CopyQ is a cross-platform clipboard manager that tracks, stores, and organizes clipboard history across multiple formats. It functions as a desktop productivity tool that captures text and image data, allowing users to search, filter, and categorize items into tabs for efficient retrieval. The application maintains a persistent history archive and provides tray-based access for quick interaction with stored content. The software distinguishes itself through an extensive automation engine and command-line integration. Users can execute custom scripts to transform, format, or process clipboard

This project is a React component for visualizing, exploring, and editing JSON data structures through an interactive, tree-based user interface. It renders complex JSON arrays and objects in a responsive browser interface that supports collapsing and expanding nodes. The utility functions as an interactive editor, allowing users to modify, add, or delete keys and values within JSON objects graphically rather than through raw text files. It includes a clipboard manager for copying specific objects or arrays from the visualized tree directly to the system clipboard. The component supports the

30 Seconds of Python is a curated collection of short, reusable Python code snippets designed for quick reference and immediate reuse. It provides an interactive browser that lets you explore snippets organized by tags, search across names and descriptions, and copy code to your clipboard with a single click. The collection covers a broad range of common programming tasks, including list and dictionary operations, string formatting and manipulation, date and time calculations, and color format conversion. It also includes utilities for data transformation, such as converting between case styl

ZeroClipboard is a JavaScript interface and integration library designed to copy text to the system clipboard. It functions as a bridge between JavaScript and a hidden Adobe Flash movie runtime to achieve system-level clipboard access. The project specifically bypasses legacy browser security restrictions that prevent direct clipboard writes. It enables clipboard functionality for older web browsers that lack modern JavaScript clipboard APIs by routing text operations through an invisible Flash object. The library provides the necessary tools to develop web page utilities where visitors can

CSSFX is a curated collection of pre-made visual CSS effects for buttons, inputs, and other common UI elements. The library is entirely CSS-only, meaning the effects themselves require no JavaScript runtime, and each style can be copied to the system clipboard with a single click using the modern Clipboard API. The project is built as a single-page application with a component-based architecture, yet it delivers its entire interface without external JavaScript frameworks. All effect previews and code snippets are pre-rendered into static HTML files at build time, so each page request requires

Input Leap is a software KVM switch and multi-machine input controller that allows a single keyboard and mouse to control several physical workstations over a local network. It functions as a network input emulator, sending keyboard and mouse signals to remote operating systems to manage a multi-machine workspace as if it were a single system with multiple monitors. The project also serves as a cross-platform clipboard synchronizer, enabling the sharing of copied text and data between different operating systems so that content can be pasted across all connected machines.

vim-anywhere is a global text editor wrapper and system utility that integrates the Vim editor into any application. It functions as a CLI text buffer manager that captures active application content or clipboard text and routes it through Vim for modification. The tool enables cross-application text workflows by piping content into a temporary Vim buffer and automatically applying changes back to the original application upon saving. It facilitates the modification of clipboard content and external text editing without requiring native editor support in the host application. The system mana

This project is a comprehensive reference guide and directory of web browser capabilities. It serves as a technical map for accessing native operating system functions, hardware interfaces, and standard web APIs to bridge the gap between web applications and desktop or mobile environments. The resource provides detailed guidance on implementing Progressive Web App features, including offline caching, push notifications, and native installation prompts. It also catalogs methods for interacting with hardware peripherals via USB, Bluetooth, and NFC, as well as reading raw data from device sensor

QMUI_iOS is an iOS development framework that extends standard UIKit components and provides a unified theme configuration system for faster app development. It functions as a collection of ready-made tools for device information, dynamic type, keyboard management, and status bar handling, while also offering a configuration system that adjusts an app's entire visual style—colors, navigation bars, inputs, and lists—from a single table. The framework differentiates itself by reading the device model locally to apply compatibility measures without uploading device information, and by providing

usehooks-ts is a comprehensive collection of reusable TypeScript-based hooks designed for managing state, DOM events, and browser API interactions within React applications. It provides a typed library of functions to handle common frontend patterns and side effects. The project distinguishes itself by offering specialized hooks for browser integration, including tools for interacting with the system clipboard, managing local and session storage persistence, and loading external scripts. It also includes utilities for responsive UI development, such as tracking media queries, window dimension

Tapable is a JavaScript plugin architecture framework and event-driven hook library. It serves as a high-performance callback engine and asynchronous workflow coordinator for building extensible systems. The library differentiates itself by compiling plugin logic into cached functions to minimize dispatch overhead. It provides a variety of execution patterns, including serial, parallel, and waterfall flows, as well as looping sequences and short-circuit execution. The framework covers the definition of custom event hooks, the management of plugin execution ordering, and the interception of h

lf is a terminal-based file manager and TUI file explorer that provides keyboard-driven navigation for browsing and organizing files and directories. It operates as a shell-integrated tool that synchronizes the current working directory with the calling shell and supports vi-style keybindings for filesystem operations. The project distinguishes itself through its ability to render images directly in the terminal via the SIXEL graphics protocol and its shell-driven execution model, which allows users to extend functionality using external shell scripts and commands. It also implements a server

Stimulus-components is a collection of reusable frontend controllers and modular interface components designed to add interactive behaviors to server-rendered templates. It provides a lightweight library of DOM manipulation modules that integrate cleanly with existing HTML markup without heavy JavaScript frameworks or complex compilation steps. The library covers a broad range of domain-specific frontend capabilities, including dynamic form automation, system-level clipboard operations, and data visualization integrations. Form management utilities support automatic submission on input change

Grid.js is a framework-agnostic JavaScript library for rendering interactive data grids. It allows for the display of structured information in tabular formats across different frontend environments, supporting data population from static arrays or JSON imports. The library features a plugin system for extending user interface components and logic, as well as a custom data pipeline for transforming information before it is displayed. It includes built-in support for multilingual localization to translate interface elements and messages. The project covers core data visualization capabilities

Taskwarrior is a command-line task manager that lets you create, modify, filter, and complete to-do items directly from the terminal. It stores all tasks in a single plain-text file for portability and manual editing, and includes a custom expression language for selecting tasks by status, priority, tags, and date ranges. The tool distinguishes itself through several integrated capabilities. It computes a numeric urgency score for each task based on weighted factors like age, tags, and due date to determine ordering. A recurrence template engine generates new task instances from a template af

TShock is a server management tool and plugin framework for dedicated Terraria servers. It functions as an administrative suite and anti-cheat tool designed to control player permissions, monitor game integrity, and extend server functionality. The project provides a framework for creating custom plugins that modify the game world and implement new commands. It enables internal state modification through bytecode injection, packet interception, and memory manipulation to bypass engine restrictions and alter live game environments. Administrative capabilities include a hierarchical role-based

NeoForge is a development framework and programming interface designed for modifying the Minecraft Java Edition game engine. It provides a standardized environment that allows developers to inject custom logic, extend core gameplay mechanics, and introduce new content into the game. The platform distinguishes itself by utilizing a system of hooks and registry patterns that manage how modifications interact with the game engine. It maintains stability across different versions by separating client and server execution environments and automating the discovery and loading of mod packages. The

react-toastify is a React toast notification library used to display temporary, animated alert messages. It functions as an animated notification framework and queue manager that coordinates the entry and exit transitions of on-screen alerts. The library features an imperative dispatch system that triggers notifications without requiring manual state management. It provides a customizable alert UI component that supports custom content, dark mode themes, and right-to-left layouts. The framework covers notification lifecycle management and behavior configuration, including the ability to limi

This is an Android alert dialog library providing a collection of stylized pop-up components for application feedback. It provides customizable UI components for displaying themed notification windows, including integrated headers, buttons, and specialized alerts for success, error, and warning states. The library features a configurable progress indicator that renders circular loading animations with adjustable speeds and colors to show background activity. These pop-ups support real-time updates to text, icons, and interaction listeners without recreating the window. The system handles dia

Polaris React is a production-ready component library that implements Shopify's Polaris design system for building consistent merchant-facing admin interfaces. It provides a comprehensive set of reusable React components, including accessible form inputs, data display elements, layout and navigation structures, and visual feedback indicators, all styled through a semantic color token system applied via CSS custom properties for dynamic light and dark mode support. The library distinguishes itself with an icon-first visual language featuring over 400 commerce-specific SVG icons delivered as fi

CopyTranslator is a clipboard-based translation tool and multi-engine translation client that monitors the system clipboard to provide automatic language conversion. It functions as an assistant that integrates large language models, cloud translation APIs, and digital dictionaries to produce context-aware translations and side-by-side reading views. The application includes a specialized PDF text cleaner to remove formatting artifacts and line breaks from copied content. It also features an optical character recognition extractor to convert images or screen captures into editable text for im

ContentTools is a JavaScript framework and suite of tools for building visual WYSIWYG editors. It provides a DOM manipulation library for parsing and transforming HTML strings into structured editable regions, alongside a visual document orchestrator that manages element behaviors and state transitions. The framework includes a specialized browser selection manager to ensure consistent caret positioning and text range highlighting across different web browsers. It also features an HTML content validator used to sanitize output and convert third-party media links into valid embed formats. The

Toastr is a JavaScript toast notification library and client-side alert manager used to display non-blocking alert messages and system notifications in web browsers. It serves as a frontend notification UI for rendering timed messages that provide real-time visual feedback within web applications. The library includes a notification system that supports right-to-left layout mirroring for internationalized applications. It also features a mechanism to prevent duplicate notifications by matching new content against active alerts to avoid redundant stacking. The system manages notification life

Toasty is a JavaScript toast notification library and frontend feedback widget. It provides a reusable UI notification component for displaying temporary, styled alert messages and status notifications within web applications. The library focuses on application status signaling and custom notification UI, allowing for the creation of personalized alert messages with unique icons and formatted text. It implements non-intrusive notification overlays to provide visual feedback without interrupting user workflow. The system manages notifications through a state-based queue and a centralized noti

EcoPaste is a local clipboard manager and history database designed to store and retrieve text, images, and files copied to the system clipboard. It functions as a privacy-focused content archive that keeps all clipboard history and user settings on the local machine to ensure full user control. The project focuses on a content organization workflow, allowing users to categorize clipped snippets and attach descriptive notes to saved items. This enables the retrieval of specific entries and the management of frequent information more efficiently. The system provides capabilities for local dat