Open-source alternatives to KeepChatGPT

Reddit Enhancement Suite is a browser extension that injects JavaScript and CSS directly into the Reddit web interface to customize its layout, styling, and behavior. It operates entirely on the client side, storing user preferences locally and manipulating the page's DOM to rearrange elements, apply visual overrides, and observe mutations so that modifications persist even as new content loads dynamically. The extension provides keyboard-driven navigation for browsing posts and comments without a mouse, along with user-defined filtering that can hide or highlight comments and posts based on

BewlyBewly is a browser extension that customizes the Bilibili homepage, modifying its layout and appearance to deliver a personalized browsing experience without altering the core functionality of the site. It functions as a frontend customization utility, injecting custom CSS and scripts directly into the page context to override default styles and dynamically reapply changes as content loads. The extension is built as a Manifest V3 Chrome extension, using a content script injection system and a DOM mutation observer to ensure customizations persist even as the page updates. It includes a u

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

SpotX is a desktop client patcher designed to modify the Spotify application. It functions as an ad-blocking modifier and UI customizer that removes advertisements and promotional content from the music player. The project includes tools to disable automatic updates, ensuring that custom patches and visual themes remain active. It also provides a telemetry blocking patch to prevent the application from sending usage data and analytics to the service provider. The tool enables interface customization to hide specific sections, such as podcasts and audiobooks, from the homepage. These modifica

This project is a browser extension that transforms the standard GitHub activity chart into a three-dimensional isometric pixel art display. It functions as an isometric data visualization tool that represents contribution volume through varying heights of pixel blocks. The tool enables users to toggle activity graph displays between standard two-dimensional views and isometric perspectives. It modifies the appearance of GitHub profile pages by extracting contribution metrics and rendering them as 3D visual assets. The implementation covers client-side data extraction, DOM manipulation, and

Gemini Voyager is a browser-based toolkit designed to enhance the interface and workflow of large language model web applications. It serves as a conversation manager, an output renderer, and a prompt library manager, allowing users to customize the layout and functionality of AI chat interfaces. The project distinguishes itself through advanced content handling, such as removing image watermarks by reversing alpha blending to restore original pixels. It also provides specialized rendering for LaTeX mathematical formulas and Mermaid diagrams, alongside tools to fix broken Markdown formatting

GitHub-Dark is a browser extension theme and collection of user style sheets designed to provide a comprehensive dark mode aesthetic for the GitHub interface. It functions by injecting custom style rules directly into the browser to override default website colors, fonts, and layout properties, aiming to improve visual comfort and readability during extended use. The project distinguishes itself through its focus on deep integration and visual consistency. It includes specialized support for syntax highlighting across various programming languages and notebook environments, ensuring that code

SwitchyOmega is a browser proxy manager and extension that controls network traffic routing and manages proxy configurations through a graphical interface. It functions as a proxy routing orchestrator and a PAC script generator, converting user-defined rules into JavaScript auto-config scripts for automated network routing. The project enables users to organize network configurations into distinct profiles, allowing for the switching of proxying logic based on different environments. It automates the selection of proxy servers by matching requested URLs against predefined patterns to avoid ma

uBlacklist is a browser extension that filters search engine results by hiding specific domains from view. It functions as a client-side content filter that modifies the search engine interface to remove unwanted website elements based on custom blacklists. The tool manages both individual custom domain blocklisting and remote rule subscriptions. Users can import curated lists of unwanted domains from external HTTP sources or publish their own subscription lists for others to use. The system supports regular expression matching to identify domains and uses browser-based synchronization to ma

Immersive Translate is a browser-based translation tool that integrates third-party translation engines and large language models to provide automated, real-time text conversion directly within the web interface. It functions as a browser extension that intercepts and modifies web content, injecting translated text nodes into the document object model to maintain original page layouts and styling. The project distinguishes itself through its granular control over the translation process, allowing users to define site-specific rules, manage custom terminology glossaries, and customize translat

Halloy is an IRCv3 chat client designed for real-time communication across multiple servers and networks. It implements modern protocol standards, including support for message tags, read markers, rich user metadata, and WebSocket connections. The project distinguishes itself through integrated anonymity and deep interface customization. It features native Tor and proxy routing to hide the user's connection origin and provides a themed environment with configurable window pane layouts, keyboard aliases, and custom color schemes. The client covers a broad range of capabilities, including chan

This project is an ad-blocking browser extension that filters web requests and page content to remove advertisements and tracking scripts from websites. It functions as a web content filter, a privacy protection tool, and an element hiding utility. The extension distinguishes itself through a combination of a rule-set evaluation engine and a manual element hiding utility, allowing for the removal of visual clutter and the customization of website layouts. It also provides security through malicious site blocking and adult content restriction. The broader capability surface includes web track

This project is a comprehensive repository of curated domain blocklists designed for network-wide DNS filtering. It functions as a DNS sinkhole feed, providing the necessary data to intercept and block unwanted network requests at the resolution layer before they reach their destination. By returning null or loopback addresses for identified domains, it prevents connections to malicious infrastructure, advertising servers, and tracking endpoints across all devices on a network. The repository distinguishes itself through a tiered categorization logic that allows users to select protection lev

This project is a framework for developing multimodal AI agents that function as programmable participants in real-time communication rooms. It enables the construction of agents that can see, hear, and speak by integrating speech-to-text, large language models, and text-to-speech pipelines to facilitate low-latency, natural conversations. The system is distinguished by its advanced orchestration of real-time media and conversational flow, including support for full-duplex speech, preemptive response generation, and sophisticated interruption management. It further differentiates itself throu

CSDNGreener is a set of custom tools and rules designed as a browser extension or Tampermonkey user script to filter promotional content and clean web layouts. It functions as a content filter specifically for the CSDN platform, removing advertisements and floating windows to improve page readability. The project focuses on interface optimization for CSDN, modifying the layout and user interface to improve browsing speed and usability. It achieves this by removing promotional pop-ups and distracting visual elements to create a cleaner reading environment. These capabilities are implemented t

This project is a self-hosted AI frontend and web-based chat interface designed to interact with large language model APIs. It functions as an API-based chat client and dashboard that enables users to send prompts and receive responses from generative AI models. The application serves as a self-hosted AI gateway, providing API key proxying to connect official model keys to a web interface. It includes security and traffic controls, such as interface access restrictions via a shared secret key and request volume limiting to prevent service abuse. The system covers conversation data management

Claudian is a framework that combines AI coding agents, knowledge base integration, and a multi-provider orchestrator for managed interactions with large language models. It functions as a browser extension that connects users to AI services through a sidebar and inline editing interface, providing a system for integrating agents into local directories to perform file operations, bash commands, and workspace searches. The project distinguishes itself with a multi-provider orchestrator that allows switching between different AI backends while maintaining separate conversation states and config

LSPosed is an Android runtime hooking framework and system modification tool. It enables the modification of application and system behavior in memory without altering original installation files, serving as a platform for distributing and managing community-created extension modules. The project provides a comprehensive suite for device and identity spoofing, including the ability to mask hardware identifiers, simulate geographic locations, and conceal root access or hooking frameworks to bypass security and integrity checks. It also functions as an application modder to unlock premium featu

BAML is a prompt engineering framework and LLM client generator that defines AI prompts as type-safe functions. It serves as a structured data extraction tool and workflow orchestrator, transforming unstructured model responses into strongly typed objects using a custom schema language and alignment algorithms. The project distinguishes itself by using a compiler to generate language-specific boilerplate code for API communication and output parsing. It features a dedicated environment for designing complex prompt templates with conditional logic and reusable snippets, and employs genetic alg

Pipecat is a framework and software development kit for building real-time multimodal AI agents and speech-to-speech systems. It utilizes a frame-based data pipeline to route audio, video, and text through a modular sequence of processors, enabling the orchestration of low-latency conversational AI. The project is distinguished by its ability to coordinate complex multimodal services, including speech-to-text, language models, and text-to-speech, within a single pipeline. It features semantic voice activity detection for natural turn-taking, state-machine conversation flows for dialogue manag

This project is a web-based user interface and multi-model API gateway for interacting with various large language model providers and local inference services. It functions as a retrieval-augmented generation chatbot for private document questioning, a manager for model fine-tuning, and an autonomous agent framework. The system distinguishes itself by integrating an autonomous assistant mode that uses web search and external tools to solve complex, multi-step tasks without manual prompting. It also features an API gateway capable of rotating multiple authentication keys to balance usage and

This project serves as an educational resource and guide for prompt engineering, providing a structured methodology for interacting with large language models. It focuses on teaching core strategies to improve the reliability, accuracy, and consistency of model outputs across a variety of natural language processing tasks. The framework emphasizes the use of standardized templates and logical decomposition to manage complex instructions. By implementing techniques such as few-shot context injection, iterative refinement, and delimiter-based segmentation, the project demonstrates how to guide

LiveKit is a comprehensive framework for building and orchestrating real-time, multimodal AI agents that interact with users through voice, video, and text. It provides a centralized, event-driven architecture to manage the entire lifecycle of automated participants, from initialization and session state management to graceful shutdown. By utilizing a selective forwarding unit, the platform efficiently routes media streams between participants and agents, ensuring low-latency communication and secure, token-based authentication for all connections. The platform distinguishes itself through it

Owncast is a self-hosted live streaming server that provides full control over broadcast infrastructure and audience data. It functions as an RTMP video streaming server, accepting incoming video feeds and distributing them to viewers through HLS-based segmented streaming. The platform includes a built-in, stateful web-based chat interface that enables real-time viewer engagement during broadcasts. The project distinguishes itself through deep integration with the decentralized Fediverse, allowing servers to automatically broadcast stream status updates and notify followers across distributed

DataHub is a metadata management platform designed to unify technical, operational, and business context across diverse data ecosystems. By utilizing a graph-based metadata model and an event-driven ingestion architecture, it creates a centralized source of truth that maps complex data relationships, lineage, and ownership. This foundational framework enables organizations to maintain a synchronized view of their data landscape, supporting both human-led discovery and automated data operations. The platform distinguishes itself through its focus on grounding artificial intelligence and autono

Quarkus is a Kubernetes-native Java framework designed for building high-performance, memory-efficient applications. It utilizes ahead-of-time native compilation to transform Java code into standalone, optimized binaries that eliminate the need for a virtual machine, enabling rapid startup and reduced memory consumption. By performing code augmentation during the build phase, it shifts heavy processing tasks away from runtime, ensuring that applications are optimized for cloud-native environments. The framework distinguishes itself through a unified approach to reactive and imperative program

bilibili-helper-o is a browser extension designed to modify the Bilibili web interface and enhance media playback and download capabilities. It functions as a playback enhancer and web interface modifier that injects custom scripts into the platform to customize the video player and layout. The project provides tools to remove regional and account-based viewing restrictions on Bilibili content. It also includes a video downloader extension capable of extracting and saving video streams from the platform to local storage for offline archiving. These capabilities are implemented through networ