Prerequisites for embedding a chatbot in React
Before you add any chatbot, you need a working React project with Node.js and npm (or yarn/pnpm) set up. A typical app is created with tools like Create React App or Vite, which give you an index.html shell and a root React component. The chatbot UI is usually mounted either:- globally, via a script tag in public/index.html, or
- inside your React component tree (for example in App.tsx or a layout shell), if you’re using a React webchat component.
Common ways to embed a chatbot in a React app
In practice, there are three common patterns:- Hosted chat widget via script Your chatbot platform gives you a <script> snippet. You paste this into your site’s HTML so it injects a floating button or chat window. This is the simplest no-code option.
- React chatbot component/library Some platforms provide a React SDK or component library (for example, a <Webchat /> React component) that you install from npm and render within your React tree.
- Embedded iframe The provider gives you an iframe URL and/or embed code. You wrap it in a React component and control sizing and responsiveness yourself. This is very generic and works with almost any hosted chatbot.
Method 1 — Add a hosted chat widget script
This is the “copy–paste a snippet” approach most non-technical teams start with. Steps- Get the script snippet from your chatbot provider In your provider’s dashboard, look for “Install on website”, “Widget code”, or “Live Chat”. You’ll usually get a <script> tag and maybe a small <div> placeholder.
- Open your React app’s HTML shell For Create React App, open public/index.html. For Vite or other tools, open the main HTML file where the React root is declared.
- Paste the script before the closing </body> This ensures the DOM is loaded first and the widget then injects itself into the page without blocking rendering.
- Restart your dev server and verify the widget Run your dev command (npm start, npm run dev, etc.). Load the app in a browser and confirm the chat bubble appears on every page.
- Optionally restrict it to specific routes If the provider supports programmatic initialization, you can skip index.html and instead insert the script using a top-level React component that only renders on certain routes, or toggles the widget on/off in effect hooks.
Method 2 — Use a React chatbot component library
If you prefer everything to live in React, use a React-native webchat library. Steps- Choose a React-compatible webchat SDK Some providers offer a dedicated React webchat library that you install from npm and use like any other component. For example, Botpress has a Webchat React library that requires React 18+.
- Install the package From your project root, run a command like:
| npm install @botpress/webchat |
- Wrap your app with any required provider Many SDKs expose a context provider (for example, WebchatProvider) that you place high in your component tree to initialize the client and theme.
- Render the chat component where you want it In your layout or page component, add the chat UI:
| import { Webchat } from ‘@botpress/webchat’; function Layout() { return ( <> {/* page content */} <Webchat configuration={/* your bot config */} /> </> ); } “` :contentReference[oaicite:8]{index=8} |
- Pass configuration, user info, and handlers Use props or hooks to pass bot IDs, theme options, and handlers for events like “message sent” or “conversation started”. Some SDKs provide hooks (such as useWebchat) for deeper control of conversation state.
- Style the chat component Use the library’s theming options or your own CSS/utility classes to match your app’s design.
Method 3 — Embed a chatbot with an iframe
Use this method when your provider exposes a hosted chat page or iframe snippet. Steps- Get the iframe embed code or URL Your chatbot provider should offer an “Embed via iframe” option that gives you a <iframe src=”…”> snippet and recommended dimensions.
- Create a reusable ChatbotIframe component For example:
| const ChatbotIframe = () => ( <iframe src=“https://your-chat-provider.com/agent/123” style= width: ‘100%’, height: ‘100%’, border: ‘none’ title=“Support chatbot” /> ); |
- Place the component in your layout or page You can embed it as a full-screen support page or inside a sidebar/drawer.
- Handle responsiveness Use CSS or responsive utilities to ensure the iframe looks good on smaller screens. You can constrain height with a fixed vh value or flexbox container.
- Be aware of refresh behavior Because the chat is in an iframe, refreshing the page usually resets the conversation session. Some providers (including CustomGPT.ai) explicitly note this limitation for iframe embeds.
How to do it with CustomGPT.ai
CustomGPT.ai lets you build an AI agent from your content, then deploy it as a Live Chat widget or iframe embed that works seamlessly in React apps.Option A — Live Chat widget script (floating chat bubble)
- Create and configure your agent In the CustomGPT.ai dashboard, create an agent, add your data sources, and customize its behavior and appearance.
- Make the agent public and open Live Chat On the agent card, open the menu, click Deploy Agent, and click Make Public. Go to the Live Chat section.
- Copy the Live Chat install code In the Live Chat page, copy the HTML script snippet provided under “Add live chat to any website”. This code injects the CustomGPT.ai chat bubble into any site when included in the HTML.
- Paste the script into your React app’s HTML shell In your React project (for example, public/index.html), paste the script just before </body>. When your React app loads, the CustomGPT.ai chat bubble will appear on your pages, including local development builds.
- Optionally use advanced customization For multilingual or dynamic behavior, follow the CustomGPT.ai Live Chat docs to switch agents or languages via script, still using the same basic embed pattern.
Option B — iframe-embedded CustomGPT.ai agent
- Open the agent’s Deploy → Integration tab In the CustomGPT.ai dashboard, open your agent, click Deploy, then go to the Integration tab.
- Copy the iframe code Scroll to the iframe section and click the code icon to copy the generated <iframe> embed code. This points to a hosted CustomGPT.ai chat UI for your agent.
- Wrap the iframe in a React component Create a CustomGptIframe.tsx component and paste the iframe attributes into JSX (for example, using style or class names for height/width). Make sure to set title for accessibility.
- Embed the component anywhere in your app Add <CustomGptIframe /> to a support page, drawer, or modal as needed. It behaves like any other React component.
- Keep session behavior in mind The iframe guide notes that conversation history is not preserved when the page reloads, because the iframe is tied to the page lifecycle. Design navigation accordingly.
Example — Customer support chatbot in a React SPA
Let’s put it together with a realistic scenario. You have a React dashboard for logged-in customers and you want a floating support chatbot that answers questions from your documentation.- Build a CustomGPT.ai agent from your docs In CustomGPT.ai, create an agent and connect your website or documentation URLs so it can answer support questions.
- Customize the agent and enable Live Chat Tweak its tone, suggested prompts, and appearance. Then go to Deploy → Live Chat, make it public, and copy the Live Chat script embed.
- Add the script to public/index.html in your React app Paste the script before </body>. Start your React dev server and confirm that a “Chat” bubble appears in the bottom corner on all routes.
- Test the experience in your actual flows Navigate through the dashboard and ask the bot questions you expect from real users. Adjust agent settings in CustomGPT.ai if answers are off.
- Iterate on design and placement When ready for production, adjust widget settings (position, colors, greetings) from the CustomGPT.ai dashboard instead of changing your React code.
Conclusion
In the end, you’re choosing between fast, bolt-on chat widgets and fully controlled, maintainable integrations inside your product. Customgpt.ai lets you have both: a production-ready AI agent with copy-paste Live Chat or iframe embeds that still plug cleanly into your React architecture and data. Stop juggling half-integrated tools and fragile scripts— embed a CustomGPT.ai chatbot in your React app today and turn every page into an intelligent, support-ready experience.Frequently Asked Questions
How do I embed a chatbot in a React app?
You can embed a chatbot in React in three common ways: add a hosted widget script to your main HTML file for a sitewide chat bubble, render an iframe when you want the chatbot inline on a page, or place a React webchat component inside your component tree when chat needs tighter app integration. Most teams start with the script because it is the quickest setup, then move to a component or iframe when they need more control over layout or behavior.
Which embed method should you use in a React app: script widget, React component, or iframe?
Use a script widget when you want the fastest sitewide launch, an iframe when the chatbot should stay in a fixed section of a page, and a React component when it needs to share routing, layout, or app state. Teams with workflow-heavy use cases often need that deeper integration. Endurance Group reported a 300% efficiency increase and 4-5x outreach volume from AI assistants used for research and outreach, which shows why a more integrated approach can matter when chat is part of the product experience rather than just a floating support bubble.
How do I show a chatbot only on certain routes in a React app?
Render the chatbot from a top-level React component or layout and only initialize it on the routes where you want it to appear. This works well for paths such as help, support, or product pages where users are most likely to need assistance. If you paste a script directly into the main HTML file, the widget will usually load on every page, so route-specific display is easier when the chatbot is mounted from React instead.
Can I embed a chatbot inside a React page instead of using a floating chat bubble?
Yes. If you want the chatbot to appear inside a help center, landing page, or dashboard, use an iframe or other inline embed inside a React component instead of a floating bubble. This gives you fixed placement and lets you control the container’s size and responsiveness in React. GPT Legal’s AI-powered legal platform has already handled 19,000+ queries, which is a useful proof point that hosted knowledge assistants can support real production usage.
Should I build a custom React chat UI or use a hosted chatbot widget?
Build a custom React chat UI when you need full control over styling, layout, and how chat fits into your app. Use a hosted widget when speed and lower frontend maintenance matter more. A hosted widget is not the only option: React components and iframes are common alternatives when you need more control. The Kendall Project said, “We love CustomGPT.ai. It’s a fantastic Chat GPT tool kit that has allowed us to create a ‘lab’ for testing AI models. The results? High accuracy and efficiency leave people asking, ‘How did you do it?’ We’ve tested over 30 models with hundreds of iterations using CustomGPT.ai.” That is a good reminder that the UI shell affects control and effort, while model and retrieval quality still drive the user experience.
What privacy and security checks should I make before adding a chatbot script to React?
Before adding a chatbot to React, check whether it uses tracking, cookies, or personal data and make sure your setup matches local privacy laws such as GDPR in the EU and CCPA/CPRA in California. If security review matters, look for independently audited controls such as SOC 2 Type 2 certification. The provided materials also state GDPR compliance and that customer data is not used for model training, which are useful checks for teams handling sensitive knowledge or support conversations.