DHTMLX Chatbot

Customizable JavaScript UI widget for integrating AI support agents with any large language model (LLM) into web applications.

Verified API available Free tier ~3k monthly visits
Quick facts
What is it Customizable JavaScript UI widget for integrating AI support agents with any large language model (LLM) into web applications.
Pricing Freemium
Free tier Yes
Platform Web Application
API Yes
Best for building customer support chat interfaces, creating AI assistant web applications
Domain registered 2007

Data updated Aug. 1, 2026

What does DHTMLX Chatbot do?

DHTMLX Chatbot is a lightweight JavaScript widget designed specifically for developers who need to build AI-powered chat interfaces. It provides the front-end UI components for creating chat applications that can connect to any backend LLM system like ChatGPT, Claude 3, or Gemini. The widget handles all the visual elements of a chat interface - message display, input fields, chat history, and agent selection - while you handle the AI integration on the backend.

What sets this apart is its flexibility and developer-friendly approach. It offers four different message display modes (blocks, bubbles, cards, and flow), includes a typewriter effect for realistic conversation flow, supports Markdown formatting, and provides a sidebar for managing multiple chat agents. At just 65kb, it's lightweight and comes with responsive design that works on mobile devices. Being MIT-licensed means you can use it freely in any project without licensing fees.

This is primarily for developers building customer support systems, internal help desks, or any web application that needs AI chat functionality. It's particularly valuable for enterprises creating custom support solutions, SaaS companies adding chat features to their products, or individual developers who want a ready-made chat UI without reinventing the wheel. The widget works with any LLM backend, giving you complete control over which AI model powers your conversations.

#ai chatbot#customer support#frontend-tool#javascript-widget#llm integration#mit license#ui component#web development

Key features

What makes it stand out
01
Four message display modes: blocks, bubbles, cards, and flow
02
Typewriter effect for realistic conversation pacing
03
Markdown support for formatted responses
04
Multiple chat agents management via sidebar
05
Lightweight (65kb) and mobile-responsive design

Who is DHTMLX Chatbot for?

Who benefits most from this tool
building customer support chat interfaces
creating AI assistant web applications
adding chat functionality to existing web apps

Pricing

Free tier available — start without a credit card

Open-source Standard Edition

Free
  • Community forum Support
  • Unlimited Projects
  • Unlimited Developers
  • Standard Edition
  • Community forum support
  • No official technical support

Individual

Custom
  • 1 Projects
  • 1 Developers
  • 72h Response time
  • 1 year Support period
  • 10 Support requests
  • 1 project
  • 1 developer
  • No SaaS usage
  • Standard support (1 year, 10 support requests, 72h response)
  • PRO edition
  • Perpetual distribution rights

Commercial

Custom
  • 1 Projects
  • 5 Developers
  • 48h Response time
  • 1 year Support period
  • 30 Support requests
  • 1 project
  • 5 developers
  • SaaS usage upon request for a fee
  • Premium support (1 year, 30 support requests, 48h response)
  • PRO edition
  • Perpetual distribution rights

Enterprise

Custom
  • 5 Projects
  • 20 Developers
  • 48h Response time
  • 1 year Support period
  • 50 Support requests
  • 5 projects
  • 20 developers
  • SaaS usage allowed
  • Noncompressed code included
  • Premium support (1 year, 50 support requests, 48h response)
  • PRO edition
  • Perpetual distribution rights

Ultimate

Custom
  • Unlimited Projects
  • Unlimited Developers
  • 24h Response time
  • 1 year Support period
  • Unlimited Support requests
  • Unlimited projects
  • Unlimited developers
  • SaaS usage allowed
  • Source code included
  • Ultimate support (1 year, unlimited support requests, 24h response)
  • Priority queue for bug fixing
  • PRO edition
  • Perpetual distribution rights

Trust & presence

Domain Domain registered 2007

Gallery

Click any image to enlarge

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