Open Source Chatgpt
The best 50 Open Source Chatgpt AI tools - Free & Paid
Explore 50 AI for Open Source Chatgpt
ChatGPT is an AI chatbot based on large language models family created by OpenAI for general purpose chat that allows users to ask any question or prompt to AI, making it a useful tool for many writing processes.
Freemium
- $20/mo
OpenAssistantGPT is an open‑source SaaS that lets you build no‑code AI chatbots for websites. It auto‑crawls a URL, supports GPT‑4/3.5, handles file attachments, SAML/SSO, API calls, and web search, with GitHub source and Vercel SDK.
Freemium
- $18/mo
OpenAI’s ChatGPT Images, powered by GPT Image 1.5, elevates creative workflows by offering rapid, precise image generation and editing directly within ChatGPT. It’s a versatile tool for visual content creation and design.
Freemium
SecureGPT is a free platform for security testing OpenAI ChatGPT plugins.
Free
OpenGPT lets users build ChatGPT‑based applications instantly using a library of ready‑made AI tools for productivity, copywriting, coding, entertainment, and education. The platform offers prompt‑to‑code conversion, regex creation, and tools that refine prompts and transform requests into actionabl
Free
GPTGO blends Google search with ChatGPT, presenting results and AI‑generated summaries in 100+ languages. Users get concise answers beside each result, can copy or download, and access the tool on desktop, mobile, or tablet without registering.
Free
FineChat.ai offers free access to GPT-4 technology for generating high-quality content. Its extended context length and multimodal capabilities enhance interactions through text, images, and documents, while its API supports integration into various applications.
Free
ChatGPT Notepad is a browser‑based plain‑text editor that lets users create, edit, and manage multiple notes without registration. It offers undo, redo, cut/copy/paste, find‑replace, spell check, real‑time word count, AI‑content cleanup, and .txt export, compatible with major browsers.
Free
Chatpad AI is a local GPT‑4 compatible chat interface that runs on the user’s machine. It stores all conversations locally, supports import/export, and lets developers and privacy‑focused users manage prompts securely.
Free
DeepSeek-V3 is an advanced AI model offering leading performance in open source LLM, enhanced speed, and global language support. It sets new benchmarks for inference speed among open-source models.
Nofiltergpt is an AI chat tool that offers anonymous and unfiltered conversations. It ensures data security through local cloud storage and AES encryption, supports multiple languages, and provides a RESTful API for seamless integration.
Free trial
The ChatGPT Prompt Generator from webutility.io is an online tool that streamlines prompt creation for engaging and insightful conversations with ChatGPT, allowing users to define their desired action, focus, subject, and context.
Free
ChatGPT for YouTube is a Chrome extension that produces concise text summaries of YouTube videos, enabling quick understanding of key points. It operates without requiring a ChatGPT or OpenAI account and integrates directly into the YouTube interface.
Free
Free GPT‑3.5 API access in French, no sign‑up needed. Accepts text or voice via mic, delivers instant replies, and lets you download session transcripts. Ideal for students, researchers, and casual users seeking quick language assistance.
Freemium
FreedomGPT unifies access to 400+ AI models, showing side‑by‑side answers for voting and auto‑selection via leaderboard. It keeps privacy safe, runs on Windows/macOS, and is open‑source for community contribution and collaboration.
Free
ChatGPT is an AI-powered chat app that uses advanced NLP technology to provide fast answers and automate tasks.
Freemium
ChatGPT Work (GPT-5.6) consolidates context from files, apps, and 1,400+ plugins to generate documents, spreadsheets, presentations, dashboards, and prototypes, automate workflows, schedule tasks, and publish interactive reports for cross-team collaboration.
Freemium
GPT AI Chat enables unlimited AI-powered conversations, utilizing advanced ChatGPT technology. Its user-friendly interface supports dynamic interactions, facilitating exploration of language models and fostering insightful discussions on a wide range of topics without limits.
Free
GPTunneL aggregates ChatGPT, Claude, Gemini, MidJourney, Suno and other models into a single interface for Russian-language text, image, audio and video generation. It offers assistants, prompt libraries, APIs, usage tracking and creative tools.
Freemium
TerminalGPT is a command-line tool that utilizes an AI-powered conversational model for chatting and allows users to adjust temperature and engine to change output.
Free
Gemini is an AI assistant and chatbot provided by google based on Gemini LLM family. It provides access to Google's advanced AI systems with many features and integrations to help you with daily workflows and tasks."
Freemium
- $20
GPTAnywhere is a desktop client that lets users chat offline with GPT‑3.5‑turbo and GPT‑4, maintain conversation history, query local files (txt, pdf, docx, ppt, csv, json) via LangChain, and use split view, markdown, shortcuts, auto‑save, and terminal commands for multitasking.
Subscription
ChatGPT for Outlook embeds OpenAI’s ChatGPT into Microsoft Outlook, enabling custom prompts on emails to generate summaries, highlights or revisions, and allowing users to replace content or flag messages. Administrators can deploy it across Office 365 with tailored prompts for teams.
Paid
Duck.ai offers anonymous access to popular AI models. It ensures privacy by keeping conversations untracked and outside AI training data, with seamless model switching.
Free
Grok is a conversational AI and multimodal chatbot developed by xAI, Grok is designed to enhance user interaction by providing answers to a wide range of questions, including those that might be considered "spicy" or controversial, which other AI systems typically avoid
Freemium
MobileGPT is an AI tool that provides document services through WhatsApp with advanced AI capabilities.
Free trial
Chat100.ai offers a single web interface that integrates GPT‑5.2, GPT‑5.1, GPT‑4o, Grok‑4.1, Grok‑4, Grok‑3, Gemini 3 Pro, and Gemini 3 Flash, enabling instant model switching, side‑by‑side comparison, and streamlined workflows for writing, coding, design, and research.
Free trial
Qwen Chat AI assistant that provides access to Qwen LLM models and can be used by content creators, developers, and researchers, offering web and image searches, artifact management, and more to enhance productivity.
The CodeGPT IntelliJ IDE Plugin is an AI-driven coding tool that offers text completion, chat functionality, custom prompts and code actions, reviewing past conversations, restoring previous sessions, and privacy settings.
ChatGPT2Help is a Chrome extension embedding ChatGPT for instant AI assistance: rapid content drafting, copy editing, multi‑language translation, page summarization, and specialized tasks like real‑estate listings, legal risk flagging, customer‑service FAQ responses, personalized education plans, an
Subscription
MyGPT lets users build custom ChatGPT‑style bots inside Telegram, choosing from GPT‑4o, GPT‑3.5‑turbo, or Claude 3‑5‑sonnet. It adds DALL·E 3 image generation, Whisper transcription, GPT‑4 Vision image understanding, and text‑to‑speech, with quick setup and open‑source scripts.
Paid
- $19.99
Organize ChatGPT is a Chrome extension that lets users create color‑coded folders to group and pin ChatGPT conversations, add multiple chats at once, and use search and filter tools to quickly find discussions, streamlining large‑volume chat management.
Free
ChatShitGPT is a GPT‑based chatbot offering interchangeable personalities—from sarcastic pirate to motivational coach—allowing users to switch tones for casual entertainment or quick encouragement. It delivers instant, varied responses tailored to mood or task.
Free
editGPT is a Chrome extension that turns ChatGPT into a writing assistant. It provides real‑time grammar, style, and rewriting support in 80+ languages, preserves formatting, tracks changes, and manages revisions.
Free
- $10/mo
BotGPT is a data‑driven chatbot that embeds in minutes, pulling content from PDFs or website crawls to create a virtual assistant. It integrates with messaging platforms, offers 24/7 support, and preserves privacy by storing no personal data.
Freemium
- $2.99/mo
AiGPT_Free provides unlimited access to diverse tools for generating text, images, reports, and more, improving AI interaction and democratizing its usage for creative possibilities without hefty fees.
Free
Free ChatGPT Omni offers a web interface to GPT‑4 Omni, supporting text, audio, and image inputs with multimodal responses. It provides real‑time voice interaction, low latency, and multilingual generation, aiding developers and learners.
Freemium
- $9.9/mo
Get the ChatGPT on Google Extension now and discover a world of knowledge and fun with ChatGPT by your side. Start exploring.
Free
The official ChatGPT app for iOS provides instant answers, tailored advice, and creative ideas using OpenAI's latest advancements.
Free
Interact privately with documents using the power of GPT and LLMs for 100% private and offline communication without data leaks.
Free
Chippy is a Chrome extension that embeds ChatGPT directly into the browser, letting users ask questions, summarize pages, research topics, translate text, and draft emails instantly while staying on the current tab.
Free