Open-source alternatives to Addon

uBlock is a browser content blocker and web privacy tool designed to prevent advertisements and tracking scripts from loading. It functions as a network request filter, a DOM element hider, and a script execution controller to manage how web pages load and render. The project distinguishes itself through a combination of network-level request interception and cosmetic filtering. It uses declarative filter lists and pattern-based matching to block trackers and pop-ups, while employing CSS selectors and wildcard entity matching to remove visual components across multiple regional domain variant

Cromite is a privacy-focused browser built as a fork of Chromium that embeds a network-level content blocking engine to intercept advertisements, pop-ups, and tracking scripts before they reach the page. It applies community-maintained public filter lists directly within the browser, eliminating the need for external extensions, and uses a curated patch system applied to the Chromium source tree at build time to add or modify features without maintaining a separate codebase. The browser is hardened against tracking and data leakage through a comprehensive set of privacy and security measures.

Bromite is a privacy-focused fork of the Chromium browser for Android that blocks advertisements and tracking scripts by default, enforces encrypted HTTPS connections, and prevents browser fingerprinting without requiring any extensions or manual configuration. It applies a patch-based build system to layer privacy and security modifications directly onto the upstream Chromium codebase during compilation, integrating a filter list engine for network-level ad blocking and adding noise to browser APIs to mask device identity. The browser distinguishes itself through comprehensive privacy harden

Lists is a curated collection of DNS blocklists, a domain blocklist generator, and a categorized library of domains used for network content filtering. The project provides a command-line pipeline that aggregates upstream sources to build and validate blocklists used to redirect unwanted traffic to null addresses. The project distinguishes itself through a CLI-driven build pipeline that automates the fetching, validation, and daily regeneration of datasets. It organizes domains into discrete functional categories rather than a single monolithic list and exports them in multiple syntaxes, incl

This project provides a collection of patches and modification sets for Android applications. It focuses on enhancing media consumption through the removal of advertisements and sponsored segments, while enabling deep customization of application interfaces and internal behaviors. The project employs system-level modifications, including binary hooking, bytecode manipulation, and dynamic memory patching, to override default application restrictions. These capabilities allow for the restoration of push notifications via signature spoofing, the suppression of screenshot alerts, and the automati

Adblock4limbo is a collection of JavaScript-based scripts and tools designed for web content filtering and advertisement blocking. It functions as a content filter and user script suite that removes pop-ups, banners, and trackers from websites. The project includes a bilingual web translator for side-by-side content translation, an M3U8 video link extractor for retrieving direct stream URLs, and a web content filter specifically designed to remove sponsored links and content farm entries from search engine results. Its capabilities extend to network traffic management, including request filt

Surge is a network traffic routing and configuration system designed to categorize and steer network requests using curated rule sets, domain lists, and IP databases. It provides the data structures and filtering logic necessary to manage how application traffic is directed across proxies, direct connections, or regional gateways. The project distinguishes itself through granular traffic identification and steering. It identifies network requests by matching them against system process names, user-agent strings, and geographic IP ranges to apply specific routing policies. This allows for the

DnsServer is a recursive and authoritative DNS server that provides domain name resolution and zone hosting. It functions as both a recursive resolver, performing iterative lookups across the internet, and an authoritative manager for primary and secondary DNS zones. The system distinguishes itself through high-availability clustering and a programmable HTTP API for automating server configurations and bulk record management. It supports a wide range of encrypted transport protocols, including TLS, HTTPS, and QUIC, and allows for custom functionality via a plugin-based request interception fr

This project provides a set of curated configuration rules and domain lists for the Shadowrocket app. It consists of network traffic routing rules, ad-blocking domain lists, DNS configuration profiles, and proxy bypass lists used to filter and direct network traffic. The rules establish policy-based routing logic to determine whether specific traffic is proxied, connected directly, or rejected. This includes specialized lists for proxy bypass management and the blocking of known advertising and tracking domains at the network level. The project covers a broad range of traffic management capa

Hono is a minimal JavaScript HTTP framework designed for building web servers across multiple runtimes, including Node.js, edge runtimes, and serverless platforms. It functions as a cross-runtime web server and a web standard API wrapper, normalizing various runtime request and response objects into standard Web API signatures. The project serves as an HTTP middleware orchestrator and request handler, utilizing a middleware-based request pipeline and hierarchical route mounting to create modular server structures. It distinguishes itself through a runtime-agnostic event wrapper that ensures c

MicroG-RE is an Android app modifier and compatibility layer designed to patch mobile applications. It functions as a system for removing advertisements, skipping sponsored content, and replacing proprietary service dependencies with open-source alternatives to maintain account authentication and app compatibility. The project provides a MicroG compatibility layer that enables applications to function without closed-source frameworks. It further implements notification restoration by spoofing application signatures, ensuring that push messages are delivered correctly after a binary has been p

ACL4SSR is a rule set generation and conversion system that produces ready-to-use proxy configuration files for multiple client formats, including Clash, Quantumult, Surge, Surfboard, and Trojan. It combines modular rule fragments from a curated library, applies user-defined overrides, and filters traffic by domain category or geo-IP to produce optimized routing configurations. The project distinguishes itself through its format-agnostic conversion pipeline, which transforms proxy rule sets between different client formats using external open-source converters as a middleware layer. It provid

jscamp is a full-stack web development and education project focused on mastering JavaScript, TypeScript, and AI integration. It provides a structured curriculum and interactive exercises covering language fundamentals, frontend engineering, and backend API development. The project distinguishes itself through the implementation of autonomous AI agents capable of complex task automation, such as modifying files, managing servers, and executing API calls. It includes advanced AI development tools for conversational querying, real-time code suggestions, and automated repository analysis to gene

This project is a reference library and collection of practical code samples for building browser extensions using WebExtensions APIs. It provides implementation guides and functional examples for core extension components, including content scripts, background processes, and browser action popups. The repository focuses on demonstrating specific implementation patterns for browser UI customization and web page manipulation. It includes samples for creating sidebars, context menus, and options pages, as well as techniques for injecting scripts and styles to alter DOM elements and page appeara

N-Tab is a browser extension designed to manage browser tab lifecycles by consolidating open web pages into organized, virtual sessions. It functions as a session management tool that allows users to group tabs into custom folders, recover recently closed pages, and reduce system memory usage by offloading active tabs into a centralized interface. The extension distinguishes itself through its support for cross-device synchronization, enabling users to back up and share saved tab configurations across multiple browser instances via remote cloud storage. It also provides a declarative command

EhSyringe is a browser translation extension and tag translation engine designed to replace website tags and content with localized versions. It functions as a dynamic content localizer and custom translation database client that maps original metadata tags to preferred languages to improve content discoverability on gallery websites. The project provides a search enhancement toolkit that enables cross-language content discovery and enhanced site search. This includes translation-aware autocomplete suggestions in search fields, the ability to perform searches via the address bar, and context-

FastForward is a tool designed for link shortener bypass and web browsing optimization. It enables users to navigate directly to a final destination URL by automatically skipping intermediary landing pages and redirect screens. The project implements a privacy protection workflow that prevents web tracking. It blocks analytics and logging services from capturing user information and IP addresses by stopping the redirection process through tracking services. The system utilizes HTTP request interception and header manipulation to force servers to provide destination URLs immediately. It emplo

Rack-attack is a middleware rate limiter and request filter for the Rack interface. It provides a system for throttling HTTP requests and maintaining IP address blocklists to protect applications from malicious traffic and denial-of-service attacks. The project enables application layer DDoS mitigation and API rate limit management by identifying and rejecting requests from banned clients or abusive IP addresses. It allows for the definition of safelists to bypass filters and uses custom logic to determine if a client should be blocked or throttled. The tool covers comprehensive traffic mana

jsproxy is a web traffic proxy designed to route requests through a ServiceWorker to bypass network restrictions while minimizing server-side processing overhead. It focuses on browser API virtualization, rewriting URL-related functions and properties so that proxied pages behave as if they are running on their original domains. The project utilizes a decoupled architecture that separates the static user interface from the data forwarding backend, allowing for deployment across multiple providers. It includes weight-based load balancing to distribute traffic across multiple proxy nodes and im

MQTTnet is a .NET library providing a framework for implementing MQTT clients and brokers. It includes a broker implementation for hosting a central message hub that routes messages between connected clients and a client library for publishing and subscribing to messages. The project supports both TCP and WebSocket transport layers, enabling secure data traffic through transport layer security. It allows for the development of custom middleware to intercept, transform, or validate messages as they pass through a server. Capability areas include distributed message routing, persistent connect

The agent-governance-toolkit is a framework for enforcing security policies, managing zero-trust identities, and sandboxing the execution of autonomous AI agents. It provides a governance layer designed to control the behavior of agents through the use of a security policy engine, cryptographic identity management, and a runtime execution sandbox. The project distinguishes itself through a multi-tier privilege ring system and a cryptographic identity mesh that secures communication between autonomous entities. It implements a decay-based trust scoring mechanism to track entity reliability and

Django Silk is a profiling and inspection toolset for Django applications designed to capture SQL queries, HTTP request data, and execution timing for diagnostics. It functions as a performance profiler and debugging middleware that records runtime execution data to provide a comprehensive overview of application behavior. The system includes a database profiler for identifying slow operations through detailed timing data and an HTTP request inspector for reviewing headers, bodies, and network traffic via a web interface. It allows for the reproduction of specific server requests through gene

Zen Desktop is a cross-platform proxy client and network request filter for Windows, macOS, and Linux. It functions as a system-wide ad blocker and privacy protection tool that intercepts network traffic across all operating system applications to block advertisements, trackers, and malware. The software employs a network request filtering system that modifies HTTP headers and prunes JSON data using custom rules and regular expressions. It specifically removes tracking parameters and sanitizes network headers to prevent activity monitoring. The project provides capabilities for blocklist man

This project is a reference library of architectural blueprints, study materials, and design patterns for building scalable, high-availability distributed systems. It serves as a technical guide for scalability engineering, providing structural solutions for common engineering challenges. The repository focuses on distributed systems design, covering essential patterns for data replication, consensus algorithms, and transaction management. It distinguishes itself by offering detailed blueprints for specialized domains, including real-time data streaming, large-scale data storage, and high-ava

ShareJS is a collaborative document database and synchronization engine designed for real-time shared state management. It provides an operational transform sync engine to enable simultaneous editing of plain-text and JSON data, and a RESTful synchronization API for managing document states via HTTP. The system features an offline-first data sync layer that queues local modifications while disconnected and automatically pushes edits upon reconnection. It also includes a middleware access control layer that intercepts database requests to enforce security policies and perform request rewriting

Headroom is an AI gateway proxy and token optimizer designed to reduce the cost and latency of large language model interactions. It functions as an intermediary that intercepts traffic between clients and providers to apply context compression, request routing, and format translation. The system differentiates itself through a Model Context Protocol server implementation that delivers compression and retrieval tools to compatible AI hosts. It employs a content-aware compression pipeline and tiered importance scoring to trim redundant data from logs and tool outputs while preserving essential

Inertia is a server-driven frontend framework designed to create monolithic single page applications. It acts as a state synchronization protocol and client-side routing bridge, allowing developers to build interactive experiences using modern JavaScript component libraries while keeping routing and controllers on the server. This approach eliminates the need for a separate REST or GraphQL API layer by passing data from server controllers to frontend components as props via JSON payloads. The framework distinguishes itself by utilizing adapter-based integration to link various backend environ