ChatGPT alternatives

The most-starred open source alternative to ChatGPT is Open WebUI. Other notable options: NextChat, LobeHub, GPT4All, AnythingLLM. All of them are free to download and most can run on your own server.

Open WebUI157.9k

open-webui/open-webui

Self-hosted chat interface for Ollama and OpenAI compatible models.

Alternative to: ChatGPT

LicenseOpen source

CategoryAI ToolsSelf-hosted

LanguageSvelte

Last updatetoday

PlatformsWebDocker

NextChat88.9k

ChatGPTNextWeb/NextChat

Lightweight, cross-platform chat client that works with many AI models such as GPT, Claude and Gemini.

Alternative to: ChatGPT

LicenseOpen sourceMIT

CategoryAI ToolsSelf-hosted

LanguageTypeScript

Last update16 days ago

PlatformsWindowsMacLinuxWebDocker

LobeHub84k

lobehub/lobehub

Modern chat and agent platform for organizing multiple AI agents.

Alternative to: ChatGPT

LicenseOpen source

CategoryAI ToolsSelf-hosted

LanguageTypeScript

Last updatetoday

PlatformsWebDocker

GPT4All77.3k

nomic-ai/gpt4all

Desktop app that runs language models locally on your own computer.

Alternative to: ChatGPT

LicenseOpen sourceMIT

CategoryAI Tools

LanguageC++

Last update1 years ago

PlatformsWindowsMacLinux

AnythingLLM68k

Mintplex-Labs/anything-llm

Privacy focused all in one AI app for chatting with your documents.

Alternative to: ChatGPT

LicenseOpen sourceMIT

CategoryAI ToolsSelf-hosted

LanguageJavaScript

Last updatetoday

PlatformsWindowsMacLinuxWebDocker

PrivateGPT57.6k

zylon-ai/private-gpt

AI server for chatting privately with your documents using local models.

Alternative to: ChatGPT

LicenseOpen sourceApache-2.0

CategoryAI ToolsSelf-hosted

LanguagePython

Last update2 days ago

PlatformsWebDocker

Cherry Studio53.3k

CherryHQ/cherry-studio

Desktop AI workspace that brings many models, agents and productivity tools into one app.

Alternative to: ChatGPT

LicenseOpen sourceAGPL-3.0

CategoryAI Tools

LanguageTypeScript

Last updatetoday

PlatformsWindowsMacLinux

textgen47.7k

oobabooga/textgen

Desktop and web app for running local language models with text, vision and tool-calling support.

Alternative to: ChatGPT

LicenseOpen sourceAGPL-3.0

CategoryAI ToolsSelf-hosted

LanguagePython

Last update3 months ago

PlatformsWindowsMacLinuxWeb

LibreChat46.8k

LibreChat-AI/LibreChat

Self hosted ChatGPT style interface supporting many providers.

Alternative to: ChatGPT

LicenseOpen sourceMIT

CategoryAI ToolsSelf-hosted

LanguageTypeScript

Last updatetoday

PlatformsWebDocker

Jan45.5k

janhq/jan

Open source ChatGPT alternative that runs fully offline on your computer.

Alternative to: ChatGPT

LicenseOpen source

CategoryAI Tools

LanguageRust

Last updatetoday

PlatformsWindowsMacLinux

#235

Chatbox42.3k

Desktop client for Windows, macOS and Linux that works with many AI models.

AI ToolsWindowsMacLinux

#295

Khoj38k

Self hostable AI second brain that answers from the web and your documents.

AI ToolsSelf-hostedWebDocker

#447

FastGPT30k

Knowledge-base platform built on LLMs, with visual workflow orchestration and RAG for building document-grounded Q&A apps.

AI ToolsSelf-hostedWebDocker

#545

llamafile26.6k

Packages an LLM and its runtime into one executable file that runs locally on most operating systems without installation.

AI ToolsCommand line

#564

Kotaemon25.9k

Open source RAG-based tool for chatting with your documents.

AI ToolsSelf-hostedWebDocker

#703

LocalGPT22.2k

Lets you chat with your documents locally, with no data leaving your device.

AI ToolsCommand line

#753

Vercel Chatbot21k

Full-featured, hackable AI chatbot template built with Next.js and the Vercel AI SDK for building your own chat apps.

AI ToolsSelf-hostedWeb

#908

DSHDesktop17.4k

Desktop app for running the DeepSeek Harness agent framework and its workflows on your own computer.

AI ToolsWindowsMac

#1109

Chuanhu Chat15.2k

GUI for ChatGPT and many LLMs with agents and file-based chat.

AI ToolsSelf-hostedWeb

#1607

HuggingChat11k

Open source chat interface powering HuggingChat, built to connect to many language models

AI ToolsSelf-hostedWebDocker

#1650

ChatGPTBox10.8k

Browser extension that integrates ChatGPT into your browsing.

AI ToolsBrowser extension

#1690

AIChat10.5k

All-in-one LLM CLI with shell assistant, chat REPL, RAG and agent features

AI ToolsCommand line

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