Best AI Chat Apps Tools

Explore 27 AI chat apps tools to find the perfect solution.

Chat Apps

27 tools

HuggingChat - Models

HuggingChat provides access to various AI chat models, enabling users to interact with and utilize state-of-the-art language models for various applications including conversation and task-oriented interactions.

Vercel AI Chatbot

A full-featured, hackable Next.js chatbot framework that uses an AI SDK to generate text, structured objects and integrates with multiple LLM providers.

NextChat

A lightweight and fast AI assistant designed for enterprise use, featuring customizable branding, resource integration, and permission controls.

Hugging Face Chat UI

An open-source codebase that powers customizable chat user interfaces, allowing deployment of chatbot instances integrated with various supported language models.

open-webui/open-webui

A user-friendly AI interface that supports multiple LLM runners (such as Ollama and OpenAI-compatible APIs) and features built-in support for retrieval augmented generation.

ChatGPT Desktop Application

A native desktop application for ChatGPT available on macOS, Windows, and Linux, providing an enhanced chat experience with extended capabilities.

Jan

Open-source offline ChatGPT alternative that runs local models on desktop with extensions and a modern UI.

PocketPal AI

PocketPal AI is a mobile application that brings offline language model-based AI assistance directly to your phone. It allows users to download, load, and interact with various small language models (SLMs) on both iOS and Android devices, with customizable inference settings and performance metrics.

Cherry Studio

Cherry Studio is a cross-platform desktop client that integrates multiple LLM providers (including major cloud services like OpenAI, Gemini, Anthropic, etc., along with local model support) and supports deepseek-r1. It offers pre-configured AI assistants, multi-model simultaneous conversations, document and data processing features, and practical integrations, making it a comprehensive tool for interacting with various AI models.

Chatbox Community Edition

An open-source, user-friendly desktop client for AI models/LLMs such as ChatGPT, Claude, Gemini, Ollama, and more. It offers features like local data storage, enhanced prompting, markdown and code highlighting, keyboard shortcuts, team collaboration, and cross-platform availability (Windows, macOS, Linux, iOS/Android and Web version).

Omnitool

An open source AI desktop environment offering a unified, browser-based interface to interact with multiple leading AI models and services.

XiaoZhi AI Chatbot

An open-source project to build your own AI friend using ESP32, SenseVoice, and LLMs like Qwen and DeepSeek. It integrates voice wake-up, speech recognition, multi-language chat, TTS, OLED/LCD display support, and configurable prompts for a hardware-based conversational AI device.

Hollama

A minimal web-UI for interacting with Ollama and OpenAI servers, featuring multi-server support, markdown rendering, code editor functionalities, and a responsive design for local and self-hosted use.

ChatGPT-On-CS (懒人客服)

An open-source intelligent customer service system based on large language models. It supports multi-channel integration (WeChat, Pinduoduo, Qianniu, Bilibili, Douyin, Weibo, Xiaohongshu, Zhihu, etc.), enabling text, voice, and image communication, auto-replies, and knowledge-base customization for enterprise AI applications.

Lobe Chat

Lobe Chat is an open-source, modern-design AI chat framework that enables one-click free deployment of private ChatGPT, Claude, Gemini, Ollama, DeepSeek, and Qwen based chat applications. It supports multi-AI provider integration, features such as chain of thought, branching conversations, knowledge base management (file upload), multi-modal interactions (including TTS/STT voice conversation and text-to-image generation), plugin systems with function calling, and more, making it a comprehensive solution for building private, customized chat interfaces.

XiaoZhi AI Chatbot

An open-source AI chatbot hardware project built on ESP32 using SenseVoice and Qwen72B. It integrates offline voice wake-up, multi-language speech recognition, configurable TTS and LLM integration to serve as a physical AI chat companion for educational and experimental purposes.

Open Assistant

Open Assistant is an open-source, chat-based assistant developed by LAION-AI. It is designed to understand user tasks, interact with third-party systems, and dynamically retrieve information, democratizing access to powerful large language models.

AI-DEBAT

AI-DEBAT is a Streamlit-based web app that enables users to pit two AI models against each other in a turn-based debate. Users select from models like OpenAI GPT-3.5/4, Anthropic Claude 3, Google Gemini, and Hugging Face models, provide respective API keys, and watch an interactive debate unfold with unused models acting as judges. It also allows downloading the final debate report.

LibreChat

An open-source AI chat application supporting advanced models (like GPT-4.1) and offering features such as agent chains and persistent code environments.

Candy.ai Free

A groundbreaking platform offering customizable virtual AI companions for mature and personalized interactions.

DeepChat

DeepChat is a powerful open-source AI chat platform that provides a unified interface for interacting with multiple large language models. It supports both cloud APIs (like OpenAI, Gemini, Anthropic) and local models (like Ollama), and offers advanced features including search enhancement and tool calling capabilities.

GodMode (smol-ai)

AI chat browser for fast access to the full webapps of ChatGPT, Claude, Perplexity, Bing, and more via a single interface.

yuntian-deng/ChatGPT

A Hugging Face Space providing a ChatGPT-like conversational interface. This tool, duplicated from 'yuntian-deng/ChatGPT4', offers users an interactive chat experience powered by AI, similar to ChatGPT. It appears to be actively running and includes discussion threads that showcase sample interactions (including code and document generation demonstrations).

NativeMind

NativeMind is a fully private, on-device AI assistant browser extension that runs local AI models (built on Ollama) without cloud dependencies. It offers features such as cross-tab contextual memory, local AI-powered search, smart webpage summarization, bilingual translation, writing enhancement, and customizable prompts, all aimed at boosting productivity while ensuring privacy.

Jan

Open-source, 100% offline ChatGPT alternative for running local LLMs with a desktop app UI.

chat-ui by huggingchat

A live chat interface hosted as a Hugging Face Space by the huggingchat team, allowing users to interact with conversational AI models through an intuitive web-based application.

Onyx

Self-hostable AI chat platform with Agents, Web Search, RAG, MCP, Deep Research, and 40+ connectors; also available as a managed cloud.