Best Free AI Chatbots for Websites: What Free Plans Really Include

A free AI chatbot can be a useful prototype, but a free plan is only useful if it supports the website, knowledge sources, and visitor volume you need. This guide compares PrimeWebKit, Chatbase, Tidio, Botpress, HubSpot, and Crisp as starting points to investigate. It does not rank them by default. The public plan and pricing details for Chatbase, Tidio, and Botpress below were checked on 2026-10-25; remaining unverified details are marked {{VERIFY}}. PrimeWebKit is our product.

For the complete guide, read How to Add an AI Chatbot to Your Website (5-Minute Guide).

PrimeWebKit's Free plan is listed at $0 and includes one chatbot and website embedding. Its possible advantage is a direct way to try a business-content chatbot on a site; the limitation to check is whether your required volume, lead-capture workflow, and team features fit the free tier or require an upgrade. {{VERIFY}} Confirm the live limits and terms on the PrimeWebKit pricing page. PrimeWebKit is our product.

Chatbase's pricing page lists a seven-day trial but no free plan. Its lowest listed Hobby plan is $40 monthly or $32 per month billed yearly, with 700 message credits per month; this is a paid entry point, not a free chatbot tier. Check the official page for current credit and add-on terms before comparing it with free offers.

Tidio's pricing page shows a $0 Free option, including a one-time allowance of 50 Lyro AI conversations; Starter and Growth add monthly billable-conversation quotas. This can support a limited trial, but the one-time AI allowance is not a recurring monthly quota. {{VERIFY}} Confirm which channels and integrations the free option supports.

Botpress publishes a free plan with 100 conversations per month, one seat, and three AI agents. AI usage is included in the listed plans, but additional conversation packs are paid and the free allowance should not be treated as unlimited production capacity. Verify deployment and usage behavior against your intended workload.

HubSpot is a candidate if your business already uses its customer tools and wants to explore chatbot workflows there. An advantage to verify is whether it fits the existing customer-record process; a limitation to verify is which features, automation, and usage are included in the plan you have. {{VERIFY}} Use the current official pricing and knowledge base to confirm exact availability.

Crisp may be relevant when you want to evaluate website chat and support tools together. A possible strength is a shared conversation workflow if the current plan supports the way your team works; a possible trade-off is that AI capabilities or limits may differ from a chatbot-first tool. {{VERIFY}} Verify plan-level details on Crisp's current official pricing and help pages.

Before you choose, test a question that the chatbot can answer, one it cannot answer, and a request for a person. Record how many conversations or messages are included, what happens at the limit, whether the widget carries vendor branding, and whether the free plan permits the use you intend. Try the upgrade path too: the cheapest initial option may become expensive when a must-have feature is gated. PrimeWebKit is our product; the goal is a fair shortlist, not an automatic win.

Want the full picture? Read our guide on how to add an ai chatbot to your website (5-minute guide).