Best AI Chatbot Builders: Create Custom Chatbots Without Code (2025)
Best AI Chatbot Builders in 2025
Custom AI chatbots can handle customer support, qualify leads, and answer questions 24/7. Modern no-code builders make it easy to create one trained on your data. Here are the best options.
Top AI Chatbot Builders
1. Chatbase — Easiest Setup
Price: Free (20 messages/mo) / $19-399/mo
Upload your website URL, PDF, or documents and get a trained chatbot in minutes. Embeds on any website. Uses GPT-4 under the hood.
2. Intercom Fin — Best for Customer Support
Price: $0.99/resolution
Enterprise-grade AI chatbot that resolves 50%+ of support tickets automatically. Trains on your help center, knowledge base, and past conversations.
3. Botpress — Most Customizable (Free)
Price: Free (generous) / Pay-as-you-go
Open-source chatbot builder with visual flow editor. Connect to any LLM. Most flexible option for custom workflows.
4. CustomGPT — Best for Documents
Price: $44-299/mo
Train on PDFs, websites, and knowledge bases. Best for internal company chatbots that answer questions about your documentation.
5. Tidio — Best for Small Business
Price: Free / $29-59/mo
Combines AI chatbot with live chat and email. Good for e-commerce and small business websites.
Comparison
| Tool | Best For | Free Tier | Starting Price |
|---|---|---|---|
| Chatbase | Quick setup | 20 msg/mo | $19/mo |
| Intercom Fin | Enterprise support | No | $0.99/resolution |
| Botpress | Custom workflows | Generous | Pay-as-you-go |
| CustomGPT | Document chatbots | No | $44/mo |
| Tidio | Small business | Yes | $29/mo |
For building web apps (not just chatbots), see: AI website builders. For AI coding: AI coding assistants.
Find the Perfect AI Tool for Your Needs
Compare pricing, features, and reviews of 50+ AI tools
Browse All AI Tools →Get Weekly AI Tool Updates
Join 1,000+ professionals. Free AI tools cheatsheet included.