Open Source ChatGPT Alternatives

This is a full-featured chatbot framework and Next.js web application designed for integrating various large language model providers into a web interface. It serves as a template for building AI chatbots that can generate text and structured data through a unified interface. The project functions as an authenticated AI application, incorporating built-in user identity verification and session management. It includes a suite for AI tool integration, allowing language models to execute tool calls and generate structured objects by connecting to external data and functions. The framework provi

Open WebUI is a self-hosted, web-based platform designed for interacting with local and remote artificial intelligence models. It functions as a unified interface and orchestration suite, enabling users to build, deploy, and manage specialized AI agents equipped with custom instructions, external tool access, and private knowledge bases. The platform distinguishes itself through a modular architecture that supports complex AI workflows. It features a plugin-based framework for custom logic and pipeline-based request processing, allowing developers to filter or transform data streams before th

NextChat is a self-hosted web application that provides a unified interface for interacting with multiple large language models. It functions as a conversational platform where users can manage and switch between diverse AI providers through configurable API backends, maintaining full control over their data and infrastructure. The platform features a persistent session layer designed to handle long-running dialogues by managing message history and context. It distinguishes itself through a structured prompt engineering environment that allows for the development and application of templates

SillyTavern is a comprehensive interface and orchestration platform designed for immersive AI roleplay and interactive chat experiences. It functions as a unified gateway that connects users to a wide array of local and cloud-based large language models, providing a centralized environment to manage complex character personas, narrative context, and model-driven interactions. The platform distinguishes itself through its advanced prompt engineering and automation capabilities. It utilizes a sophisticated macro-based templating engine and vector-database retrieval to dynamically inject lore, c

Danswer is an LLM application framework and RAG engine that provides a self-hosted interface for connecting large language models to private data. It serves as an enterprise AI chat interface and agent orchestrator, enabling the creation of specialized assistants with custom instructions and knowledge bases. The platform differentiates itself through an observability dashboard for tracking query history and token consumption, as well as a white-labeled interface for customized branding. It includes a multi-step research workflow for producing long-form reports and a sandboxed environment for

Chatbox is a cross-platform desktop application that provides a unified interface for interacting with a wide range of artificial intelligence models. It functions as a model-agnostic client, allowing users to connect to various third-party AI providers or execute open-source models directly on their own hardware. By centralizing these diverse services into a single workspace, the application enables users to manage multiple chat sessions, adjust model parameters, and switch between different AI backends with ease. The project distinguishes itself through a local-first architecture that prior

Wenda is an LLM orchestration platform and custom workflow engine designed to manage multiple language model backends through a unified interface. It functions as a self-hosted AI gateway that enables the execution of complex task sequences and automated conversation flows. The system utilizes JavaScript plugins to orchestrate workflows and trigger external API calls. It supports retrieval augmented generation by injecting relevant data from vector stores and offline files into prompts to increase response accuracy. The platform is built for private network deployments, featuring multi-user

GPT4All is a cross-platform runtime environment designed to execute large language models directly on local consumer hardware. By leveraging an optimized C++ inference backend, it enables private, offline AI interactions without requiring an internet connection or external cloud services. The project provides a comprehensive ecosystem for managing the entire model lifecycle, including discovery, downloading, and configuration of local weights. What distinguishes the platform is its integrated retrieval-augmented generation engine, which allows users to index local documents into semantic vect

This project is a self-hosted large language model chat interface and AI model aggregator. It provides a unified web environment for interacting with multiple AI providers and local models, acting as a provider-agnostic API gateway to standardize requests across different endpoints. The platform functions as an agentic AI framework and generative UI workspace, enabling the construction of specialized assistants with custom instructions and subagents. It features a sandboxed code interpreter for secure execution of multiple programming languages and a generative UI system that renders interact

This project is a comprehensive platform for hosting and interacting with large language models directly on local hardware. It provides a web-based graphical interface that allows users to manage model loading, configure generation parameters, and execute text or chat interactions entirely offline. By running models locally, the software ensures complete data privacy and eliminates reliance on external cloud services for generative tasks. Beyond basic inference, the platform functions as a versatile workbench for generative AI development. It includes an integrated pipeline for fine-tuning mo

Dify is an open-source platform for building, orchestrating, and deploying generative AI applications and autonomous agents. It provides a visual development environment that allows users to design complex, multi-step logic chains and conversational flows, which can then be published as APIs, web interfaces, or embedded widgets. The platform acts as a centralized infrastructure layer, managing model connections, prompt templates, and knowledge retrieval to support scalable AI-powered services. What distinguishes the platform is its focus on stateful application design and workflow orchestrati

Chatbot-ui is a self-hosted AI dashboard and LLM chat interface that serves as a centralized hub for interacting with multiple artificial intelligence providers. It functions as a multi-provider AI client and model orchestrator, allowing users to send prompts and receive responses from various large language models through a unified conversational interface. The project enables multi-model AI chat within a single workspace, allowing for the comparison of outputs and capabilities across different backends. It provides a private frontend for AI workspace management, where users can organize cha

This project is a terminal-based command line interface client and agent orchestrator for interacting with multiple large language model providers. It functions as an OpenAI API client and a local API gateway that exposes chat completions and embeddings through an HTTP server. The system distinguishes itself by providing a retrieval-augmented generation tool for indexing local files and URLs into a vector database to provide custom document context. It allows for the creation of specialized AI agents that combine custom system prompts with tool calling and external function execution. The to

Jan is a desktop application that functions as a local artificial intelligence model runtime and an open-standard API server. It enables the execution of large language models directly on local hardware, ensuring that data remains private and accessible offline while providing a unified interface for managing model weights and inference runtimes. The platform distinguishes itself by offering a modular inference backend that allows users to swap execution engines based on hardware compatibility and performance needs. It acts as a cross-platform orchestrator, providing the ability to switch bet

This project is a Bing AI proxy gateway and web-based chat interface. It functions as a Go reverse proxy that routes HTTP traffic to external AI endpoints, allowing users to bypass regional network restrictions and login requirements. The system utilizes SOCKS5 proxy tunneling and environment-variable configuration to circumvent IP-based blocking and regional firewalls. It manages authentication by injecting predefined session cookies into outgoing requests to maintain private AI sessions and unlock personalized features. The application integrates a Vue-based single page application for the

Cherry Studio is a cross-platform desktop application that serves as a centralized workspace for managing and interacting with multiple artificial intelligence models. It functions as a local-first orchestrator, prioritizing user privacy by storing all conversation history and knowledge bases directly on your device. By providing a unified interface for both cloud-based and local AI services, the platform simplifies API key management and allows for consistent model interaction across different operating systems. The application distinguishes itself through a robust retrieval-augmented genera

DeepReasoning is a self-hosted AI gateway and chat interface that provides an LLM inference API. It functions as a bridge that merges reasoning traces from DeepSeek R1 with the generative capabilities of Claude models to facilitate complex problem solving. The system is delivered as a dockerized application, allowing for deployment on private infrastructure. This architecture enables private LLM inference and secure local management of API keys and authentication tokens on user-controlled hardware. The project covers multi-model orchestration by combining chain-of-thought reasoning and gener

Serge is a self-hosted web chat interface for running large language models locally using the llama.cpp inference engine. It loads GGUF-format model files directly on your own machine, removing the need for internet connectivity or external API keys, and streams responses to the browser in real time via WebSocket connections. The project is packaged for containerized deployment using Docker and Docker Compose, with a Traefik reverse proxy that handles HTTP and WebSocket routing along with automatic TLS certificate management. Ready-made Kubernetes manifests are also provided, enabling deploym

Khoj is a self-hosted artificial intelligence platform designed for personal knowledge management and semantic information retrieval. It functions as a private assistant that indexes your local documents, notes, and external workspaces, allowing you to interact with your data through natural language queries and conversational chat. By maintaining a local-first architecture, the system ensures that your information remains under your control while providing context-aware responses grounded in your personal knowledge base. The platform distinguishes itself through a modular, cross-platform int

Flowise is a low-code platform designed for building and deploying complex language model workflows through a visual, node-based interface. It functions as an orchestrator for autonomous multi-agent systems, allowing users to construct conversational pipelines by connecting language models, memory stores, and external tools on a drag-and-drop canvas. The platform distinguishes itself through its support for sophisticated agentic patterns, including supervisor-worker delegation and iterative reasoning strategies. Users can design directed acyclic graphs to manage conditional branching, state p

Chatbox is a desktop client and multi-provider chat interface for interacting with large language model APIs across various service providers and local installations. It functions as a local-first AI conversation manager that stores chat history and user settings directly on the device. The application provides a unified interface to connect multiple AI backends for text generation and image creation. It includes a specialized rendering system for AI responses that supports technical documentation through syntax highlighting, Markdown, and Latex mathematical notation. The platform manages pr