Build custom AI chatbots and conversational agents without code.
Free AI chatbot for Instagram, WhatsApp, and Facebook Messenger.
ManyChat is the most popular chatbot platform for social media marketing. The free plan includes unlimited flows, broadcasts, sequences, and A/B testing for up to 1,000 contacts. Perfect for e-commerce stores and creators who want to automate Instagram DMs, WhatsApp replies, and Facebook Messenger conversations. No coding needed.
Completely free, open-source AI chatbot framework for developers.
Rasa is the leading open-source framework for building AI chatbots and voice assistants. Unlike cloud-based tools, Rasa runs entirely on your own servers giving you full data privacy, unlimited customization, and no vendor lock-in. Requires technical setup (2-5 hours) and hosting on AWS, DigitalOcean, or your own infrastructure. Completely free forever with no usage limits.
AI chatbot for customer support.
Tidio combines live chat with an AI chatbot called Lyro that answers up to 70% of customer questions automatically. Free plan: 50 Lyro AI conversations/month.
Train AI chatbots on your documents and website content.
Chatbase lets you create AI chatbots trained on your own data, documents, and website content. Simply upload files or connect your website, and the AI learns to answer questions accurately. Free tier: 50 message credits per month, 1 chatbot agent, and 400 KB of training content. Ideal for FAQ bots and customer support automation.
Design voice assistants and web chatbots with a visual builder.
Voiceflow is a visual design and prototyping platform for conversational AI. Build voice assistants for Alexa and Google Assistant, plus web chatbots, all in one place. The free plan includes unlimited prototypes and design work - perfect for testing ideas before deployment. Paid plans required for live deployment and runtime.
Free AI chatbot with 1,000 monthly conversations for customer support.
Kompose by Kommunicate offers a generous free tier for building AI chatbots that handle customer support and helpdesk queries. Includes 1,000 conversations per month, knowledge base integration, and 1 chatbot agent. Great for deflecting support tickets and automating FAQ responses on your website.
Google AI chatbot platform with 10,000 free queries per day.
Dialogflow is Google official AI chatbot development platform powered by BERT and Gemini models. Build complex, context-aware conversational agents for websites, mobile apps, and smart devices. The free tier includes 180 requests per minute and 10,000 text queries per day. Ideal for developers and enterprises needing advanced NLP with 90%+ intent detection accuracy.
Open-source AI chatbot builder.
Botpress is a developer-friendly open-source platform for building AI chatbots with GPT integration, visual flows, and 100+ integrations. Free self-host or free cloud tier.
No-code chatbot builder for websites.
Landbot lets you build conversational chatbots and landing pages visually — no code needed. Free plan includes 100 chats/month with WhatsApp and web embed.
Chatbot Builders tools powered by artificial intelligence are transforming the way individuals and teams work. Our directory lists only tools that offer a genuine free tier, free trial, or open-source licence — so you can start immediately with no credit card.
Every tool in this list has been manually reviewed to confirm the free tier is real and accessible. We update this list monthly to reflect pricing changes, new launches, and tool shutdowns.