DHTMLX Chatbot

DHTMLX Chatbot

DHTMLX Chatbot is a lightweight, MIT-licensed JavaScript AI chatbot UI widget for building customizable support-agent interfaces that integrate with any large language model (LLM). It provides configurable chat patterns, markdown support, multiple display modes, and demos/documentation for quick integration.

DHTMLX Chatbot is chatbots & assistants software teams evaluate for business operations. Use this page to review pricing, integration signals, and the best alternatives before you commit.

Free API
One of 175 tools in Chatbots & Assistants
Added 1 year ago
Data reviewed Jul 15, 2026

Profile facts come from the vendor source. AiMatch labels unknown pricing or API details instead of estimating them.

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Quick Overview

Best for: Business Operations

What it does

Chatbots & Assistants software for decision-makers comparing workflow fit and alternatives.

Best fit

Business Operations

Pricing snapshot

Free from Free

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DHTMLX Chatbot is a lightweight JavaScript UI widget designed to create customizable AI chat applications and support-agent interfaces. Created by the DHTMLX team and distributed under the MIT license, it targets developers and companies who want a client-side chat UI that connects to any backend LLM.

The widget emphasizes configurability and small footprint (65kb), offering multiple display patterns, markdown support, a typewriter effect, responsive design, and a sidebar for managing multiple chat agents. DHTMLX provides documentation, API references, online examples, and forum support to accelerate integration.

JavaScript chatbot widget for AI support agents with customizable UI and LLM integration.

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Key Features

Multiple message display modes

Four modes for displaying messages: blocks, bubbles, cards, and flow.

Typewriter effect

Configurable typewriter animation for messages to simulate typing.

Markdown support

Support for rendering markdown within messages.

Textarea input

Textarea for composing messages with configurable behavior.

Chat history and agents

Sidebar displaying a list of chats with different agents and persistent chat history viewing.

Backend-agnostic LLM integration

Backend interface for integrating the UI with any LLM system (examples for ChatGPT, Claude 3, Gemini provided).

Lightweight

Small footprint (~65kb) for fast loading and minimal overhead.

MIT license

Distributed under the MIT license for maximum flexibility in use and distribution.

Responsive and mobile-friendly

Designed to work across desktop and mobile devices.

Read-only mode

Option to present the chat UI in a read-only state when needed.

Documentation and samples

API references, step-by-step guides, and online examples to demonstrate integration and usage patterns.

Pricing

Free Tier Available

Available under the MIT license — free to use and include in any project.

MIT License

Free
  • Full widget source under MIT license
  • Documentation and online samples

Use Cases

Customer support agent interfaces

Embed the widget to build AI-powered support agent UIs that connect to chosen LLM backends for automated or agent-assisted responses.

Multi-agent and contextual chat apps

Create apps with multiple chat agents and persistent chat histories, using the sidebar to switch contexts or agents.

Developer prototypes and production UIs

Rapidly prototype chat interactions with samples and demos, then integrate into production web apps using the provided API references.

Integration with third-party LLMs

Use the backend hooks to connect the UI to ChatGPT, Claude 3, Gemini, or other LLM services.

Integrations

ChatGPT / OpenAI

Examples and compatibility to connect the widget backend to ChatGPT models.

Claude 3

Ready-made integration examples for Claude 3 as an LLM backend.

Gemini

Examples showing how to connect Gemini as the LLM backend.

Frontend frameworks (React, Vue, Angular)

DHTMLX libraries and components are built for easy integration with React, Vue, Angular, etc., enabling inclusion of the Chatbot UI in these frameworks.

Benefits

Open-source MIT license allows free use and modification in any project.
Small bundle size (~65kb) helps reduce load times and resource usage.
Backend-agnostic design makes it compatible with any LLM provider.
Highly configurable UI (display modes, typewriter, markdown) for tailored user experiences.
Comes with documentation, examples, and forum support to speed integration.
Responsive design works across desktop and mobile environments.

Limitations

UI-only widget: a backend integration is required to connect to an LLM or to provide AI responses.
Download distribution via form/email (package is provided after requesting it), rather than an immediate public NPM package on the product page.

Frequently Asked Questions

No verified FAQs are available.

Getting Started

  1. 1 Download the Chatbot package by filling the download form on the product page to receive the package via email.
  2. 2 Read the Chatbot documentation and API references on the DHTMLX site to initialize and configure the widget.
  3. 3 Explore online samples and demos to see examples (popups, single/multiple agents) and integrate the backend to connect your chosen LLM.

Support

Documentation

API references and step-by-step guides available on the DHTMLX site to initialize and configure the Chatbot.

Samples / Demos

Online examples and demos demonstrating the widget structure, popups, and multi-agent scenarios.

Forum

DHTMLX forum for technical assistance with initialization and configuration; monitored by the support team.

Contact form

Contact and 'Send a Question' forms on the DHTMLX site for license, purchase, or product inquiries.

API

Available: Yes
Documentation:

API references and step-by-step guides for initialization, configuration, and backend integration available in the Chatbot documentation on the DHTMLX website.

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