Free ai · conversational in the Top 11
5 providers in the Top 11 The 11 Best Chatbot Software Platforms offer a free tier; the most credible is HubSpot Service Hub.
Why this answer
Filtered to entries with a published free tier (not just a free trial). When the pricing page is ambiguous we err conservative — paid-only by default.
Showing all 5 matches. Top 11 publishes whatever the data supports — we don’t pad lists. See the full ranked The 11 Best Chatbot Software Platforms.
#1HubSpot Service Hub(rank #4 in The 11 Best Chatbot Software Platforms)
Free tierThe best choice for SMBs already using the HubSpot CRM platform.
Full HubSpot Service Hub review · Compare: HubSpot Service Hub vs Tidio · Alternatives
#2Tidio(rank #6 in The 11 Best Chatbot Software Platforms)
Free tierThe best value platform for small businesses needing a simple, effective chatbot.
#3Freshchat (Freshworks)(rank #7 in The 11 Best Chatbot Software Platforms)
Free tierA solid, well-priced chatbot for support and sales, especially for Freshworks users.
#4Botpress(rank #10 in The 11 Best Chatbot Software Platforms)
Free tierA flexible, developer-focused platform for building highly custom chatbots.
#5Rasa(rank #11 in The 11 Best Chatbot Software Platforms)
Free tierThe leading open-source framework for teams who want to build and host their own AI assistant.
Methodology: /methodology · No paid placement ever · Verified .