Open-source alternatives to UserScripts

SnowNLP is a Python library for Chinese natural language processing. It provides tools for text segmentation, sentiment analysis, document classification, and phonetic transliteration. The library includes capabilities for training and saving custom machine learning models for tokenization and sentiment analysis using raw training datasets. It covers a range of linguistic processing areas, including parts of speech tagging, sentence splitting, and text similarity measurement. The toolkit also provides utilities for extracting key information through text summarization and calculating word im

ddgs is a metasearch engine and web content extractor that provides a toolkit for programmatically retrieving search results from DuckDuckGo. It functions as a search API server and a Model Context Protocol server to integrate web search capabilities directly into large language model environments. The project distinguishes itself by aggregating text, image, news, and video results from multiple providers into a single interface. It includes a utility for fetching URLs and converting HTML content into markdown, plain text, or structured data. The system covers a broad range of search capabil

This project is a CJK input method framework and configuration set designed for the Rime input engine. It provides a comprehensive system of schemas and dictionary packs to optimize Chinese character entry through pinyin and double-pinyin workflows. The framework is distinguished by its use of Lua-powered extensions that add dynamic utilities, such as inline mathematical calculators, automated timestamps, and text formatting, directly to the input interface. It also features refined word libraries and language models specifically tuned to improve prediction accuracy and first-choice hit rates

Ripme is a batch media downloader and web media scraper designed for extracting images and videos from image-hosting platforms and social media sites. It functions as an image gallery downloader and a network client capable of retrieving full albums and paginated content. The project includes a custom media ripper framework that allows for the definition of new extraction rules to support websites lacking native support. It features a proxy-enabled network layer for routing requests through HTTP or SOCKS servers and supports session-based content retrieval using authentication cookies and cus

Min is a minimalist, privacy-focused web browser designed to limit data collection and remove interface clutter. It serves as an ad-blocking tool that prevents tracking scripts and advertisements from loading to improve page speed and protect user identity. The browser differentiates itself through organized tab management, where related tabs are grouped into named tasks to separate work streams. It features a tag-based bookmark manager that replaces traditional hierarchical folders with custom labels and provides a simplified reader view to strip away non-essential page elements for focused

Firefox is a cross-platform web browser engine designed to render web content, execute JavaScript, and manage secure browsing sessions. It utilizes a multi-process isolation architecture that distributes browser tasks across independent operating system processes to ensure stability and prevent site-specific failures from impacting the entire application. The engine incorporates a sandboxed execution environment to restrict web content and untrusted scripts to isolated memory compartments, enforcing security policies that prevent unauthorized access to system resources. The project distinguis

React is a JavaScript library for building user interfaces based on a component-driven architecture and unidirectional data flow.

Crawlee-python is a web crawling framework for building scalable scrapers using Python. It serves as a comprehensive tool for web scraping automation, providing a system to extract structured data from websites using both lightweight HTTP requests and headless browser automation. The framework is distinguished by its anti-bot evasion capabilities, which include browser fingerprint impersonation and tiered proxy rotation to bypass detection systems and solve challenges such as Cloudflare. It also incorporates artificial intelligence for autonomous website navigation and schema-based data extra

Infinite Scroll is a JavaScript library that automatically loads and appends the next page of content when a user scrolls near the bottom of a container, or optionally when they click a button. It provides scroll-based pagination that fetches and inserts subsequent pages of content, with URL-driven content loading that determines next page URLs from selectors, templates, or custom functions. The library integrates with browser history, updating the URL and history state as new pages load while preserving scroll position so each page state is bookmarkable and refreshable. It is compatible with

Tridactyl is a Vim-like Firefox extension that provides a comprehensive keyboard-driven interface for browsing, tab management, and page interaction. It replaces traditional mouse-based navigation with Vim-style keybindings, an ex-mode command line, and a hint overlay system for selecting and interacting with page elements. The extension is built around a core infrastructure that includes a modal command parser, a keybinding configuration system, and a content-script command bridge for executing commands in page context. The extension distinguishes itself through its deep integration with Fir

JMComic-Crawler-Python is a high-performance asynchronous web scraper and API client designed to programmatically retrieve images and metadata from a comic hosting service. It functions as a media archiving tool for batch downloading albums and chapters, automating the process of saving content to a local filesystem. The project is distinguished by its ability to reverse server-side pixel obfuscation, using a decryption tool to reconstruct sliced and shuffled images. To maintain stable connectivity, it utilizes a network bypass utility featuring dynamic domain rotation and proxy routing to ci

This project is a framework-agnostic library for building accessible, search-as-you-type interfaces. It provides a headless logic layer that decouples search state management and result filtering from the visual presentation, allowing developers to maintain full control over the underlying HTML structure and styling. The library distinguishes itself through a highly modular architecture that supports multi-source data aggregation, enabling the combination of results from static arrays, remote APIs, and external indices into a single interface. It features a flexible rendering engine that inte

Zed is a terminal-based code editor built in Rust that provides a full-featured editing experience with familiar keybindings, mouse support, and multiple cursors. It runs entirely in the terminal while offering capabilities typically found in graphical editors, including split panes, a command palette, and integrated language server protocol support for real-time diagnostics, completions, go-to-definition, and code actions across multiple languages. The editor distinguishes itself through a plugin system that runs sandboxed TypeScript plugins in a QuickJS runtime, with an asynchronous bridge

Streamdown is a streaming markdown renderer for React that transforms incoming markdown text into sanitized HTML in real time, handling incomplete blocks as they arrive. It parses GitHub-Flavored Markdown syntax including tables, task lists, and footnotes, and renders LaTeX math expressions using KaTeX, Mermaid diagrams as interactive SVGs, and code blocks with Shiki-based syntax highlighting supporting over 200 languages with dual light and dark themes. The renderer includes an XSS-safe HTML sanitizer that strips dangerous tags and validates URLs to prevent injection attacks. What distinguis

TagSpaces is an offline-first file tagging and organization platform that lets you manage local files with portable metadata stored directly in filenames or sidecar JSON files, eliminating the need for a central database. It functions as a full-text file search engine, a Kanban board file organizer, a local AI file assistant, an S3-compatible cloud file manager, and a web clipper and bookmark manager, all within a single application. The project distinguishes itself through a local-first architecture where all file operations, indexing, and AI processing run entirely on the device, with cloud

Vditor is a browser-based Markdown editor and rendering engine that supports multiple editing interfaces, including a visual rich-text experience, instant rendering, and a traditional side-by-side split-view preview. It serves as an authoring tool for technical documentation and a component for web-based editor integration. The project is distinguished by its support for complex technical content, utilizing specialized rendering for mathematical formulas, flowcharts, sequence diagrams, and mind maps. It also functions as a collaborative document review tool, enabling users to attach anchored

Crawlee is a web scraping framework designed for building scalable, reliable, and distributed data extraction pipelines. It provides a unified interface for managing headless browser automation and lightweight HTTP requests, allowing developers to handle complex web navigation, dynamic content rendering, and large-scale data collection within a single, modular architecture. The project distinguishes itself through its resource-aware concurrency controller, which dynamically scales task execution based on real-time CPU and memory usage to prevent host machine exhaustion. It also features a rob

Violentmonkey is a userscript manager extension and JavaScript injection framework. It allows users to install and manage custom scripts and CSS to modify the behavior and appearance of websites based on metadata-driven trigger conditions. The project functions as a cloud-synced script manager, backing up and synchronizing scripts across different devices using external cloud storage services. It also serves as a cross-origin request bridge, providing a communication layer that enables scripts to bypass the same-origin policy to fetch data. The tool covers a broad range of browser automation

Chinese-Vicuna is a Chinese large language model and instruction-following AI based on the LLaMA architecture. It is specifically designed for natural language understanding and generation in the Chinese language, utilizing an instruction-tuned model to follow complex user prompts across conversations. The project provides a LoRA fine-tuning framework and quantization systems to enable model adaptation and inference on consumer hardware. It implements quantized inference to reduce memory usage on both CPUs and GPUs, supported by a low-level C++ implementation to minimize system resource requi

douyuEx is a Tampermonkey userscript and web interface enhancer designed to modify the functionality and appearance of a specific live streaming platform. It acts as a comprehensive automation tool and browser extension that provides a suite of utilities for managing live stream interactions, enhancing video playback, and analyzing streaming data. The project distinguishes itself through deep automation of platform-specific tasks, such as automated account check-ins, treasure box and gift packet claiming, and keyword-based chat responses. It also provides advanced interaction tools, including

svg.js is a JavaScript library and toolkit for programmatically creating, modifying, and querying Scalable Vector Graphics in the browser. It functions as a programmable interface and DOM wrapper that allows developers to manipulate vector elements through a standardized API rather than writing raw XML. The library includes a dedicated animation framework for creating fluid motion and visual transitions. This is supported by tools for path morphing and the use of timelines and easing functions to animate vector graphics. The toolkit covers a broad range of capabilities, including geometric t

Sprint is a lightweight DOM manipulation and event handling library. It provides a minimal set of utilities for selecting, modifying, and traversing elements within the browser document object model. The library utilizes a selector engine to isolate specific document nodes using CSS-like patterns and positional indices. It encapsulates raw DOM elements within a wrapper object to provide a consistent API for updating element attributes, styles, and content. The toolset covers browser event management for attaching and detaching interaction handlers, as well as document tree navigation to loca

dolby_beta is an audio content unblocker and music source proxy tool designed to route restricted audio streams through proxy servers. It functions as a music stream redirector that replaces original media URLs with proxy addresses to enable the playback of unavailable tracks. The project is implemented as an Xposed module, allowing it to modify application behavior at the system level during runtime. It uses the Xposed framework to hook into the Android operating system and modify music application behavior without altering the original app binary. The utility handles audio source intercept

LAC is a Chinese lexical analysis engine and toolkit designed for joint word segmentation, part-of-speech tagging, and named entity recognition. It functions as a high-performance system that identifies word boundaries and grammatical categories using trained machine learning models. The project features a lightweight, compiled native runtime that enables on-device natural language processing and embedding into mobile applications. It includes model compression and conversion to optimize for resource-constrained environments and supports multi-threaded parallel execution to increase throughpu

OpenCC is a library and command-line tool for converting text between Simplified Chinese, Traditional Chinese, and Japanese Kanji. It operates at both the individual character and multi-character phrase levels, and applies region-specific vocabulary choices for Mainland China, Taiwan, and Hong Kong during conversion. The conversion engine resolves ambiguous character mappings using semantic and contextual rules, normalizes variant character forms for consistent orthography, and sequences multiple dictionary files into a configurable pipeline. It supports embedding custom conversion rules dire

Cash is a lightweight DOM manipulation library and HTML element wrapper designed as an alternative to jQuery for selecting and modifying elements in modern browsers. It functions as a modular DOM framework and JavaScript utility library, providing a system to wrap DOM nodes into actionable collections for batch processing. The project is built with a modular design that supports tree-shaking, allowing build tools to exclude unused methods to minimize the final bundle size. It provides mechanisms for extending the core functionality and collection prototypes to implement reusable plugins and c

This project is a markdown web clipper and local-first web archiver. It functions as a browser extension that extracts web page content and highlights, saving them as structured markdown files for personal knowledge management and long-term preservation. The utility acts as a template-based content extractor, transforming raw website data into formatted notes. It uses custom variables and processing filters to organize how captured information is structured before it is sent to a local directory.