OpenChat: Free AI Chat Sidebar for Claude, GPT, Gemini & More

Free AI chat in your side panel: Claude, GPT, Gemini, DeepSeek & more. Ask about any page, PDF or YouTube video. One account.

OpenChat: Free AI Chat Sidebar for Claude, GPT, Gemini & More ✅ Every leading AI model in one Chrome side panel. Chat with Claude, GPT, Gemini, DeepSeek, Grok and more from any tab, with one OpenChat account. ✅ Chat with the web page you are reading. ✅ Chat with PDFs. ✅ Compare answers from up to four models side by side. Ask about a YouTube video or a piece of selected text, without switching tabs. 🔥 Free AI, forever. Chat with Claude, GPT, Gemini, Llama and more than ten models at no cost, no card needed. Pro adds every model, image, video and music generation, web search, PDF chat and side-by-side model comparison. 🔥 ✅ WHY OPENCHAT ✔️ All the top AI models in one place: switch between Claude, GPT, Gemini, DeepSeek and Grok mid-conversation ✔️ An AI sidebar on every website: open the panel on any tab and keep chatting while you browse ✔️ Chat with any webpage: one click sends the article you are reading to the chat ✔️ Chat with PDF: attach a document and ask questions, the text is extracted locally in your browser ✔️ Summarize YouTube videos: a "Summarize video" button on every video page ✔️ Writing assistant in Gmail, LinkedIn and X: draft a reply where you already work ✔️ Select any text for instant actions: Explain, Summarize, Improve, Translate ✔️ Compare models: one prompt, 2 to 4 answers side by side ✔️ Web search with cited sources ✔️ Image, video and audio generation models in the same picker ✔️ Full chat history, synced with the OpenChat web app 1️⃣ AI CHAT IN YOUR SIDE PANEL Open OpenChat next to any page with the toolbar icon or the keyboard shortcut (Alt+Shift+O, Cmd+Shift+O on Mac). Pick a model, ask anything, keep browsing. The panel stays open as you move between tabs. 2️⃣ CHAT WITH THE PAGE YOU ARE READING A long article, a doc, a product page, a research paper? Click "Chat with this page" and ask for a summary, the key points, a translation or a plain-English explanation. Page content is sent to the chat only when you ask (Chat with this page, Summarize my open tabs, the site buttons). 3️⃣ CHAT WITH PDF Attach a PDF and ask questions about it. Text extraction runs locally in your browser before anything reaches the chat. 4️⃣ SUMMARIZE YOUTUBE VIDEOS A "Summarize video" button appears on YouTube. Get the key points without watching the whole thing. 5️⃣ WRITE FASTER IN GMAIL, LINKEDIN AND X A Reply button appears on email threads, LinkedIn posts and tweets. OpenChat drafts a reply that matches the context. You edit and send. 6️⃣ SELECT TEXT, GET ANSWERS Highlight text on any site and a small toolbar appears: Explain, Summarize, Improve, Translate. 7️⃣ COMPARE AI MODELS Not sure which model is best for the job? Run our models and read the answers side by side. 8️⃣ WEB SEARCH Turn on web search to get current answers with cited sources. 🆕 NEW IN 1.4.0 Ask about pages you visited, summarize your open tabs in one click, block distracting sites with Focus mode, and get a notification when a reply finishes while the panel is closed. 💡 COMMON USE CASES ✅ Summarize long articles, blog posts and documentation ✅ Explain selected text in simple terms ✅ Translate text while reading a webpage ✅ Draft replies to emails, LinkedIn posts and tweets ✅ Improve the wording of anything you select ✅ Ask questions about the page you are on ✅ Ask questions about a PDF ✅ Get the key points of a YouTube video ✅ Compare how different models answer the same prompt ✅ Research with current, cited web results ✅ Get help with code snippets and technical docs ✅ Generate images from a text prompt 🧭 HOW IT WORKS Install from the Chrome Web Store. Open the panel from the toolbar icon or the keyboard shortcut. Sign in with your OpenChat account. Browse as usual, and open the panel whenever you want help. Select text, click "Chat with this page", or use the Reply and Summarize buttons on supported sites. 🔒 PRIVACY No ads, no trackers, no cookies. WE NEVER SELL YOUR DATA. With your consent, the extension records some browsing, shopping and AI-assistant activity, as described in our privacy policy. Privacy policy: https://openchat.ongage.com/privacy 🔑 HOW SIGN-IN WORKS The extension uses your OpenChat account. Signing in opens openchat.ongage.com, which securely connects your session to the extension. No password is ever typed into the extension itself. 🚀 GET STARTED 1. Click "Add to Chrome" and pin OpenChat to your toolbar. 2. Open the side panel on any page and start chatting, no account needed to try it. 3. Sign in to keep your history and your free plan across devices. 🆓 WHAT "FREE" MEANS OpenChat is free forever. The free plan includes chat with more than ten models, among them Claude, GPT, Gemini, Llama and DeepSeek, with a fair-use limit and no card. Pro adds every model in the picker, image, video and music generation, web search, PDF chat and model comparison. Pro is purchased on the website, not inside the extension. OpenChat is one account for every model: no API keys to create, paste or manage. ⭐ WHY CHOOSE OPENCHAT It is not just a separate chat window. OpenChat adds help where you already work: selected text, the page you are reading, your inbox, your feed, the video you are watching. It is for people who want one browser assistant for every model instead of three tabs, a page summarizer, a writing helper and a PDF reader in one panel. 🌐 COMPATIBILITY Google Chrome 134 or newer on Windows, Mac, Linux and ChromeOS. Works with any Google account or email sign-in. 📩 SUPPORT Questions, bugs or feature requests: support@ongage.com ⚠️ DISCLAIMER OpenChat is an independent product by Ongage Ltd. It is not affiliated with, endorsed by or sponsored by OpenAI, Anthropic, Google, DeepSeek or xAI. Model names are trademarks of their respective owners and describe which models you can chat with through your OpenChat account.