Best Flutter Chatbot Packages in 2025: Complete Comparison Guide

Looking for the best Flutter chatbot package? Compare the top options including flutter_bot, dash_chat, flutter_chat_ui, and more to find the perfect fit for your app.

Why Use a Chatbot Package for Flutter?

Building a chatbot UI from scratch is time-consuming. A good package gives you:

• Pre-built message bubbles - Text, images, files, typing indicators
• Customizable themes - Match your app's design
• Scroll handling - Smooth infinite scroll for message history
• Input handling - Text field, send button, attachments
• Accessibility - Screen reader support out of the box

Let's compare the top options.

Top Flutter Chatbot Packages Compared

1. flutter_bot (Widget-Chat SDK)

Best for: Production apps needing AI-powered responses

dependencies:
  flutter_bot: ^0.0.3

Pros:

• Complete AI chatbot solution (UI + backend)
• Train on your own data (URLs, docs, PDFs)
• Multi-platform: iOS, Android, Web, Desktop
• Real-time responses with streaming
• Analytics dashboard included
• 5-minute integration

Cons:

• Requires Widget-Chat account
• Monthly pricing for high volume

Example:

import 'package:flutter_bot/flutter_bot.dart';

ChatWidget(
  projectId: 'your-project-id',
  primaryColor: Colors.blue,
  title: 'Support Chat',
)

2. dash_chat_2

Best for: Custom chat UIs with full control

dependencies:
  dash_chat_2: ^0.0.21

Pros:

• Highly customizable message bubbles
• Support for quick replies
• Message reactions
• Typing indicator
• Active maintenance

Cons:

• UI only - no AI backend
• Requires building your own message handling

Example:

DashChat(
  currentUser: user,
  onSend: (ChatMessage m) => sendMessage(m),
  messages: messages,
)

3. flutter_chat_ui

Best for: Clean, WhatsApp-style interfaces

dependencies:
  flutter_chat_ui: ^1.6.12

Pros:

• Beautiful default design
• Image and file messages
• Link previews
• Emoji support
• Null safety

Cons:

• Less customization than dash_chat
• No built-in AI integration

Example:

Chat(
  messages: messages,
  onSendPressed: handleSend,
  user: user,
)

4. flutter_dialogflow

Best for: Google Dialogflow integration

dependencies:
  flutter_dialogflow: ^0.1.2

Pros:

• Direct Dialogflow CX/ES integration
• Intent detection
• Entity extraction
• Multi-language support

Cons:

• Requires Dialogflow setup
• No UI included
• Google Cloud pricing

5. chat_gpt_sdk

Best for: Direct OpenAI API access

dependencies:
  chat_gpt_sdk: ^3.0.0

Pros:

• GPT-4, GPT-3.5 support
• Streaming responses
• Function calling
• Image generation (DALL-E)

Cons:

• API key management required
• No UI included
• OpenAI pricing per token

Feature Comparison Table

Feature	flutter_bot	dash_chat_2	flutter_chat_ui	dialogflow	chat_gpt_sdk
Chat UI	✅	✅	✅	❌	❌
AI Responses	✅	❌	❌	✅	✅
Custom Training	✅	❌	❌	✅	❌
Streaming	✅	❌	❌	❌	✅
Analytics	✅	❌	❌	✅	❌
Free Tier	✅	✅	✅	✅	❌
Multi-platform	✅	✅	✅	✅	✅

Which Package Should You Choose?

Choose flutter_bot if:

• You want a complete AI chatbot solution
• You need to train on your own documentation
• You want analytics and conversation history
• You prefer minimal setup time

Choose dash_chat_2 if:

• You need full UI customization
• You're building your own backend
• You want message reactions and quick replies

Choose flutter_chat_ui if:

• You want a clean, modern design
• WhatsApp-style UI fits your app
• You're building a peer-to-peer chat

Choose flutter_dialogflow if:

• You're already using Google Cloud
• You need complex conversation flows
• Intent detection is important

Choose chat_gpt_sdk if:

• You want raw GPT-4 access
• You're building a custom AI experience
• You need image generation

Integration Example: Complete AI Chatbot

Here's how to add a full AI chatbot to your Flutter app in 5 minutes with flutter_bot:

import 'package:flutter/material.dart';
import 'package:flutter_bot/flutter_bot.dart';

class SupportScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Support')),
      body: ChatWidget(
        projectId: 'YOUR_PROJECT_ID',
        primaryColor: Theme.of(context).primaryColor,
        title: 'How can we help?',
        placeholder: 'Ask anything...',
        showFAB: false, // Embed directly, no floating button
      ),
    );
  }
}

That's it - AI responses, conversation history, and analytics included.

Performance Considerations

When choosing a package, consider:

1. Bundle size - Some packages add significant weight
2. Lazy loading - Does it support pagination?
3. Memory usage - Important for long conversations
4. Platform support - Web, desktop, mobile?

Package	Bundle Size	Web Support	Desktop Support
flutter_bot	~150KB	✅	✅
dash_chat_2	~80KB	✅	✅
flutter_chat_ui	~120KB	✅	✅

Get Started with Widget-Chat

Ready to add an AI chatbot to your Flutter app? Widget-Chat offers:

• Free tier - 100 messages/month
• 5-minute setup - No AI expertise needed
• Train on your data - URLs, docs, PDFs
• Multi-platform - One codebase, all platforms

Start Free →

Summary

The best Flutter chatbot package depends on your needs:

• Complete solution: flutter_bot (Widget-Chat)
• Custom UI: dash_chat_2
• Clean design: flutter_chat_ui
• Google ecosystem: flutter_dialogflow
• Raw GPT access: chat_gpt_sdk

For most production apps, a complete solution like Widget-Chat saves weeks of development time while providing AI-powered responses trained on your specific content.