Offline AI Chat Apps for Mac, Windows, Linux

Kai 9000 is a personal AI assistant for people who want remembered context and tools that can act on their requests. Its responses can include interactive screens such as quizzes, recipe cards and dashboards.

OpenWork is a desktop workspace for knowledge workers who want AI agents to work on their files and connected services. Built on OpenCode, it's a point-and-click alternative to Claude Cowork and Codex.

Vellium is a desktop AI app for writers and people who want conversations with fictional characters. It combines multi-character roleplay with writing projects and lets you choose the model provider.

text-generation-webui, also called TextGen, runs language models on your own hardware for chat, writing and application integrations. You can use it as a desktop app or a self-hosted browser interface.

Kiro Crew is a self-hosted AI development workspace for developers who want agents to keep working between conversations. It runs on your computer or a server you control, but its default kiro-cli backend requires separate Kiro sign-in for model access. The default Kiro connection sends model requests to Kiro's cloud service, powered by Amazon Bedrock.

Locally Uncensored is a desktop AI studio for people who want to chat, create media and work on code on their own PC. It includes mainstream models and variants with fewer refusal restrictions.

Kerlig is a paid AI writing assistant for Mac that helps with emails, Slack replies and Jira tickets in the apps you already use. It combines text editing with document chat and an agent that can read your screen and use your apps.

Vyact is a desktop workspace for people who want a local LLM to help with files, writing and code. It brings conversations and searchable documents together, with optional connections to email services and Chrome.

Open Cowork is a desktop AI agent for Windows and Apple Silicon macOS that uses cloud model APIs to carry out tasks on your computer. It's a Claude Cowork alternative for people who want a graphical interface for document work and app automation. The app is free and open source under MIT, but the agent needs an API key and internet access; model requests go to your chosen provider.

Reins is a chat app for people using self-hosted LLMs through Ollama. It gives you a mobile and desktop interface for comparing models and keeping different instructions for different conversations.

PyGPT is a desktop AI assistant for people who want to chat with models, work with their documents and delegate tasks from one application. It supports local AI through Ollama alongside cloud providers.

MTPLX is a native Mac app, command-line tool and local LLM server for people running chat or coding models on Apple Silicon. It uses a model's own multi-token prediction heads to accelerate generation without a separate draft model.

Mirrai is an AI companion for people who want to revisit unfinished conversations through a persona based on someone's chat history. It simulates their communication style, with a farewell process that gives the experience an optional endpoint.

Voxta is an AI companion for people who want a character they can talk to, assign tasks to or use in interactive stories. You choose its personality, voice and optional avatar.

Sidekick is a native macOS app for people who want AI answers grounded in their documents and research materials. Its built-in llama.cpp engine runs GGUF models such as Qwen3.5 without a separate model runner.

Libre WebUI is a self-hosted AI workspace for individuals and teams who want chat, document research and AI agent tasks on infrastructure they control. You can use local models or connect a remote provider of your choice.

LLM Farm is an app for on-device AI conversations and comparing language models on Apple hardware. It suits people who want offline chat or need to assess which model fits a project.

LM Studio runs downloaded language models for conversations and tasks on your computer. Its Bionic agent helps people create documents, write software and carry out work using local or frontier open models.

py-xiaozhi is a Python AI voice client for people who want to try Xiaozhi conversations on a computer or build voice interaction into hardware projects. It builds on the xiaozhi-esp32 project and lets you use a desktop microphone and speakers without dedicated Xiaozhi hardware.

Zeraix is a local AI desktop for people who want models to work with their files and carry out multi-step tasks. It combines chat, project tools, and agents in one workspace.

Row-Bot is a local AI assistant for people who want to research, create documents and automate work on their own computer. It combines conversations with memory and agents that can continue working on longer tasks.

Miko is an AI companion for people who want to talk with an animated character on their Windows desktop. It pairs a local language model with a customizable 3D avatar and spoken replies.

BoBe is an open-source desktop assistant that offers help based on what you're working on. It runs on Apple Silicon Macs with macOS 15 or later. Optional periodic screen captures give a vision model context about your work, while a floating overlay lets you chat with the assistant and review its suggestions.

Locally AI is a native assistant for people who want to use language and vision models on their own Apple devices. It handles text, images and spoken conversations without sending AI processing to a cloud service.

Cherry Studio is a desktop AI chat app for people who use several model providers and want one place to manage their conversations. It supports local model connections as well as cloud services.

BAH Browser is an MIT-licensed desktop browser for people who want an AI agent to carry out web tasks in their own browser session. It runs on Windows and combines a tabbed Chromium browser with an assistant that reads pages, clicks links and fills forms in response to plain-language requests.

Inno Agent is a personal AI learning agent for ongoing tutoring and study. It keeps learning goals, misconceptions and study materials available across conversations, with records you can inspect and correct.

TensorSharp runs local AI models for .NET developers and people who want chat, media generation and agent tools on their own hardware. You can embed it in a C# application or use its CLI, browser interface or companion app, TensorAgent.

AstrBot is an AI chatbot platform for personal assistants, customer support bots and team automation inside messaging apps. You can host it on your own computer or server and choose a local or cloud model backend.

Prismos AI is a desktop assistant for people working with private documents and technical files. It uses local Ollama models to answer questions and retain knowledge for later conversations.

Soul-of-Waifu is an AI companion app for creating characters and roleplaying with them. A character carries the same personality and memories between conversations, RPG campaigns and a desktop companion.

Llama Desktop runs language models on your computer for private chat and use in other apps. It's for people who want a local ChatGPT alternative and developers connecting coding agents, editors or scripts to their own models.

IntelliBar is an AI assistant for Mac for writing, proofreading and asking questions across local and cloud models. It brings those models into one app so you can compare their answers without moving between separate chat services.

Chatbox is an AI chat app for people who want to use local models and cloud providers in one interface. It supports Ollama for local LLM use, plus GPT, Claude, Gemini, Grok and DeepSeek with your own API keys.