What is an AI chatbot for websites?
An AI chatbot for websites is a widget embedded on your site that uses large language models to answer visitor questions in real time. Unlike traditional live chat that requires human agents to be online, AI chatbots operate 24/7, drawing answers from your website content, knowledge base, or uploaded documents. Studies show that websites using AI chatbots see a 23% increase in conversion rates, and 62% of visitors prefer interacting with a chatbot over waiting for a human agent. Modern tools like Chatbase and Tidio let you deploy a fully trained chatbot in under an hour with zero coding.
Top use cases for website chatbots
How much does an AI website chatbot cost?
| Tier | Setup Cost | Monthly Cost | Best For |
|---|---|---|---|
| Free | $0 | $0/mo | Personal sites and small blogs with low traffic |
| Starter | $0 | $15-$40/mo | Small business websites with moderate traffic |
| Professional | $0-$500 | $40-$150/mo | Business websites with active lead generation |
| Enterprise | $1,000+ | $150-$500+/mo | High-traffic sites with custom integrations |
Best AI chatbot tools for websites
Chatbase
Pricing: Free plan; paid from $40/mo to $500/mo
Best for: Custom-trained chatbots from website content
Paste your website URL or upload documents, and Chatbase builds a chatbot trained on your content. The free plan offers 50 messages/month. Paid plans start at $40/month for 1,500 credits. Embed on any site with a single code snippet.
Tidio
Pricing: Free plan; Lyro AI from $39/mo
Best for: Small business websites wanting live chat + AI
Combines live chat, chatbot flows, and Lyro AI in one widget. The free plan includes 50 conversations/month. No per-seat billing on core plans -- scales by conversation volume instead.
Botpress
Pricing: Free pay-as-you-go; Plus from $89/mo
Best for: Developers building custom chatbot experiences
An open-source chatbot platform with a visual flow builder. The free plan includes pay-as-you-go AI usage. The Plus plan at $89/month adds team features and priority support. LLM costs are billed at provider rates.
Boei
Pricing: From $14/mo for 2,000 AI messages
Best for: Multi-channel website widgets
A lightweight widget that combines AI chat with 50+ contact channels (WhatsApp, email, phone, social). Starts at $14/month for 2,000 AI messages. Easy to install on any website platform.
Voiceflow
Pricing: Free sandbox; Pro from $60/editor/mo
Best for: Designing conversational AI experiences
A visual builder for creating sophisticated AI chatbot flows. The free sandbox lets you prototype, while the Pro plan at $60/month includes 10,000 credits and 20 agents. Ideal for teams that want granular control over conversation design.
How to get started with a website chatbot
The fastest path is to use a tool like Chatbase or Tidio that can scrape your existing website content and auto-generate responses. Step 1: Sign up and paste your website URL to train the bot. Step 2: Customize the widget appearance to match your brand. Step 3: Set fallback behavior -- what happens when the bot cannot answer (e.g., collect email, create ticket, route to human). Step 4: Embed the code snippet on your site (one line of JavaScript for most platforms). Step 5: Monitor conversations for the first week and refine responses. Most businesses see measurable impact within the first 30 days.
Frequently asked questions
Yes. Chatbase, Tidio, and Botpress all offer free plans. Chatbase's free tier includes 50 messages/month, Tidio offers 50 conversations/month, and Botpress has a free pay-as-you-go model. These are sufficient for low-traffic sites.
Yes. All modern chatbot widgets are fully responsive and work on mobile browsers. Most tools also offer customizable positioning and sizing for mobile screens.
No. Most chatbot widgets load asynchronously, meaning they don't block your page from rendering. The typical script is under 50KB and has negligible impact on page speed scores.
Most tools let you paste your sitemap URL or individual page URLs, and they automatically crawl and index your content. You can also upload PDFs, docs, or paste text. Training typically takes a few minutes.