In today’s digital-first world, businesses, marketers, and developers are rapidly turning to AI chatbot builders to improve customer support, automate interactions, and streamline engagement across channels. Whether you’re a small business looking for a no-code platform or an enterprise needing scalable AI support, there’s a tool that fits your needs.
With the rise of conversational AI, chatbot builder platforms have evolved to become smarter, faster, and easier to deploy—some even powered by advanced models like GPT-4.
What Is an AI Chatbot Builder?
An AI chatbot builder is a software platform that allows users to create chatbots powered by artificial intelligence. These bots can engage in natural language conversations with users, automate workflows, and provide real-time support on platforms like websites, Facebook Messenger, WhatsApp, or apps.
They use technologies like Natural Language Processing (NLP) and machine learning to understand queries, make decisions, and respond accordingly.
Benefits of Using an AI Chatbot Builder
- 24/7 Customer Support – Provide instant responses to users without human staff.
- Lead Generation & Sales – Qualify leads, answer FAQs, and guide users through funnels.
- Cost Efficiency – Reduce support team workloads and operational costs.
- Scalability – Handle thousands of conversations simultaneously.
- Omnichannel Presence – Use the same chatbot on websites, WhatsApp, Instagram, and more.
- Easy Integration – Connect with CRMs, payment gateways, or marketing tools.
Top 10 AI Chatbot Builders
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Botpress
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SalesGroupAI
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Rasa
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Landbot
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Watermelon AI
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Odin AI
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Voiceflow
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eesel
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Chatbase
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emergent.sh
Comparison Table
| Tool | Best For | No-Code? | LLM / GPT Support | Platforms Supported | Free Plan |
|---|---|---|---|---|---|
| Botpress | Teams + devs building multi-channel agents | ✅ | ✅ (multiple LLM providers) | WhatsApp, Instagram, Messenger, Slack + more | ✅ ($0 + $5 AI credit) |
| SalesGroupAI | SMB support + live chat + ticketing | ✅ | ✅ | Web chat + live chat + ticketing | “Start for free” |
| Rasa | Pro-code, enterprise-grade control | ❌ | ✅ (LLM + structured flows) | REST/WebSocket + connectors | ✅ (Dev Edition) |
| Landbot | No-code web + WhatsApp experiences | ✅ | ✅ | Web + WhatsApp | ✅ |
| Watermelon AI | Customer service automation (omnichannel) | ✅ | ✅ (mentions GPT-powered agent) | Web widget, WhatsApp, Messenger, Instagram | ✅ (“Start for free”) |
| Odin AI | Internal + customer-facing AI agents | ✅ | ✅ | Publishable web chatbot + integrations | (Pricing starts low; plan shown) |
| Voiceflow | Designing chat + voice AI agents | ✅ | ✅ (all LLM models on paid) | Voice + web/chat deployment | ✅ (Starter free) |
| eesel | Support + internal knowledge assistants | ✅ | ✅ | Site chat bubble + Slack/Teams + helpdesk | Trial (7 days) |
| Chatbase | Fast “train on docs” website chatbot | ✅ | ✅ | Website embed | ✅ ($0 plan) |
| emergent.sh | Building full chatbot apps fast (agentic app builder) | ✅ | ✅ | Build/deploy web & mobile experiences | ✅ (Free credits) |
1. Botpress

Review
Botpress is a developer-focused, open-source chatbot builder designed for creating sophisticated conversational flows with strong control over data, infrastructure, and customization. It supports GPT-based integrations and can be deployed either self-hosted or via cloud options, making it a solid fit for teams that want flexibility beyond a pure SaaS model.
Best For
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Developers
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Enterprises
Key Features
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Open-source and self-hostable deployment
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Built-in NLU engine
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Modular conversation flow builder
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GPT-compatible integrations
Pros
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Highly flexible and powerful for custom builds
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Full data ownership and infrastructure control
Cons
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Requires development expertise and setup effort
Pricing
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Free (self-hosted)
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Paid plans available (cloud)
2. SalesGroupAI

Review
SalesGroupAI blends AI chatbots with live chat, ticketing, and “AI agents” packaged for SMBs—useful if you want support + automation in one place.
Best For
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Small teams wanting chatbot + live chat + ticketing
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Businesses wanting message-based plans
Key Features
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Message-based plans (e.g., 3,000 messages/month tier)
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AI agent counts by plan (e.g., 2 agents on Starter)
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Ticketing support + analytics
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Knowledge base + training links/videos
Pros
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“All-in-one” support stack (chat + tickets + KB)
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Clear scaling by messages and agent count
Cons
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Less ideal for deeply custom, developer-heavy orchestration
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Enterprise automation may require higher tiers
Pricing
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Starter: shown around $40/mo (annual billing option shown)
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Growth / Pro / Enterprise: higher tiers listed
3. Rasa

Review
Rasa is a pro-code conversational AI platform built for teams that want maximum control, reliability, and structured conversation design—especially in enterprise environments.
Best For
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Developers building complex assistants with deterministic logic
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Enterprises needing scale, security, and deep customization
Key Features
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Free Developer Edition available
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“CALM” approach combining LLM flexibility with deterministic logic
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Channel connectors (REST/WebSocket)
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Kubernetes/Helm + testing + observability options
Pros
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Excellent control and production robustness
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Strong fit for regulated and complex workflows
Cons
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Not a beginner-friendly no-code tool
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Enterprise pricing is sales-led
Pricing
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Developer Edition: Free (with conversation limits)
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Enterprise: Contact sales
4. Landbot

Review
Landbot is a no-code builder known for creating polished conversational experiences on websites and WhatsApp, with visual flow-building that suits marketing, lead capture, and customer support journeys.
Best For
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No-code teams building website chatbots
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WhatsApp journeys and opt-in style flows
Key Features
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Web + Messenger + API-focused plans
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WhatsApp automation offering
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AI assistant features mentioned in pricing page
Pros
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Very friendly for non-technical users
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Strong for lead-gen style conversational funnels
Cons
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Can get pricey as chat volume / WhatsApp usage grows
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Advanced customization may still require technical help
Pricing
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Paid plans: Pricing page lists tiered plans (web + WhatsApp)
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Trial: “Start Free Trial” available
5. Watermelon AI

Review
Watermelon AI is built for customer service automation across multiple channels, combining a web widget, inbox/handoff, and AI agent features with tiered chat volume.
Best For
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Support teams needing omnichannel AI automation
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Businesses that want human handoff + inbox
Key Features
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Web chat widget
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Channels: WhatsApp, Messenger, Instagram
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Human handoff + inbox (Premium+)
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API access (Premium+)
Pros
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Clear support-first feature set
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Strong omnichannel coverage
Cons
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Pricing scales quickly with chat volume
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Best value tends to be annual billing tiers
Pricing
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Basic: from €106/mo (annual billing)
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Premium: from €215/mo (annual billing)
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Business: from €430/mo (annual billing)
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Enterprise: from €1650/mo (annual billing)
6. Odin AI

Review
Odin AI is positioned as an AI agent platform that includes publishable chatbots and a large integrations layer—useful if you want agents that connect broadly to tools and knowledge sources.
Best For
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Teams needing multiple AI agents + integrations
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Companies wanting a publishable chatbot quickly
Key Features
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Publishable chatbot
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API access + “200+ integrations” messaging
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Unlimited agents + knowledge bases (as listed)
Pros
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Simple entry pricing shown
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Strong “agent platform” packaging
Cons
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Some advanced needs may require enterprise conversation
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Feature depth depends on your integrations/workflows
Pricing
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Team Plan: shown as $25/month (seat-based selector shown on page)
7. Voiceflow

Review
Voiceflow is a conversational design platform for building both voice and chat experiences, ranging from Alexa and Google Assistant skills to custom GPT-powered agents. It’s especially strong for prototyping and collaboration, with visual, modular flows and tooling for prompt management and integrations.
Best For
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Multimodal chatbot builders (voice + chat)
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Teams designing and prototyping conversational experiences
Key Features
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GPT-4 prompt management and iteration tools
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Voice and chat support (multi-channel workflows)
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API integrations for connecting external tools and data
Pros
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Great collaboration features for teams
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Visual, modular builder that speeds up iteration
Cons
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Can have a learning curve for non-technical users
Pricing
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Free plan available
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Pro plans start at $50/month
8. eesel

Review
eesel focuses on turning your existing knowledge (docs, help centers, tickets) into support and internal assistants—deployable as a site chatbot, inside Slack/Teams, or inside helpdesks.
Best For
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Support teams automating ticket replies + triage
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Companies wanting internal Slack/Teams knowledge bots
Key Features
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Train on sources like docs/help centers and many integrations
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Deploy to: chat bubble, Slack/Teams, helpdesk copilot/agent
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AI actions (e.g., lookups/triage)
Pros
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Strong “knowledge → support automation” workflow
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Multiple deployment destinations (site + internal + helpdesk)
Cons
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Built more for support ops than marketing funnels
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Pricing is premium vs lightweight widget tools
Pricing
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Team: $299/mo
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Business: $799/mo
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Trial: 7 days
9. Chatbase

Review
Chatbase lets you create a GPT-powered chatbot by uploading or linking content like PDFs, URLs, and Notion pages, then embedding it on your site as a support or info assistant. It’s a strong pick for personal or project websites where you want a fast setup and a lightweight, ready-to-use widget.
Best For
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Quick website chatbots
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Personal, portfolio, or small project sites needing an embedded assistant
Key Features
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Upload files or connect links as a knowledge source
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Custom embeddable chat widget
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GPT-4 support
Pros
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Very simple setup and deployment
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Budget-friendly for small use cases
Cons
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Limited design customization options
Pricing
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Free plan available
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Paid plans start at $19/month
10. emergent.sh

Review
emergent.sh is an AI “app builder” that can create production-ready web/mobile apps through conversation—meaning you can build a full chatbot experience (UI + backend + deployment) rather than only a widget.
Best For
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Builders who want a full chatbot app (not just a chatbot tool)
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Rapid prototyping of customer-facing AI experiences
Key Features
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Build web & mobile experiences
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GitHub integration (Standard+)
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Custom AI agents and larger capabilities on higher tiers
Pros
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Great for shipping complete experiences end-to-end
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Free tier is enough to test workflows
Cons
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Not a traditional “chatbot dashboard” tool
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Best results when you’re comfortable iterating like a builder
Pricing
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Free: $0/month (free credits included)
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Standard: $20/month
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Pro: $200/month
How to Choose the Right AI Chatbot Builder
When selecting the best AI chatbot builder, consider:
- Technical Skills: Choose no-code tools like Landbot or ManyChat for ease; go with Botpress or Voiceflow for full control.
- Use Case: Marketing? Customer service? Internal automation? Different tools excel in different areas.
- Integrations: Look for CRM, e-commerce, or API connectivity.
- Channel Support: Do you need support on your website, WhatsApp, Facebook, or all three?
- Pricing & Scalability: Start with a free plan, but review what’s locked behind paywalls.
Conclusion
AI chatbot builders have come a long way—from simple autoresponders to intelligent, GPT-powered assistants that improve customer experience and business efficiency. Whether you’re a solopreneur, startup, or large enterprise, there’s a chatbot builder that fits your technical level and goals.
FAQs
What is the best free AI chatbot builder?
ManyChat, Chatbase, and Tidio offer great free plans for beginners.
Which chatbot builder uses GPT-4?
Voiceflow, Intercom Fin, Chatbase, and Landbot integrate GPT-4.
Do I need coding skills to build a chatbot?
No. Many platforms like Landbot, Chatfuel, and ManyChat are no-code.
Can I build a chatbot for WhatsApp?
Yes. ManyChat, Landbot, and Flow XO support WhatsApp integration.
Which AI chatbot builder is best for websites?
Tidio, Chatbase, and Landbot offer fast, embeddable website chatbot