What "free AI chatbot" actually means in 2026 (and what it doesn't)
"Free" is the most overloaded word in the chatbot market. When a vendor's homepage says "start for free," it can mean any of three completely different things, and the difference matters enormously for whether the tool will still work for you in 90 days.
The first kind is free forever with hard caps. You pay nothing, your account never expires, but you accept hard ceilings: a fixed monthly message quota, vendor branding on the widget, one bot, no integrations, no priority support. Tawk.to, Crisp, ChatRaj's Free plan, and Userlike's Free plan all fall into this category. If you stay under the caps you can run the tool indefinitely without paying.
The second kind is free trial disguised as free. The vendor's marketing positions a tier as "free," but the included quota is a one-time allotment, not a renewing monthly quota, or the AI capability is restricted to a 7 to 30 day evaluation window. Tidio's Lyro AI free tier is the clearest current example: the headline "free" Lyro quota is 50 AI conversations one time, not 50 per month, and once consumed the AI stops responding until you upgrade. Chatbase's free plan technically renews 50 message credits per month but deletes inactive agents after 14 days, which functionally turns it into a trial for anything that does not get continuous traffic.
The third kind is open-source self-hosted. The software's source code is licensed permissively (MIT, Apache 2.0, or AGPL) and you can download, modify, and run it on your own infrastructure without paying the vendor a cent. Botpress v12, Rasa Open Source, and Chatwoot's community edition are the leaders here. The licensing is genuinely free; the real cost is your time, your DevOps maintenance, and your cloud hosting bill.
A buyer who confuses these three kinds of "free" will get burned. Picking Tidio expecting 50 AI conversations every month and discovering it is a one-time bucket is a common failure mode. Picking Botpress without realising you need a Postgres database, a Redis instance, and ongoing patching is a more expensive failure mode. The rest of this guide labels each option by which kind of free it actually is.
The free-tier trap: when "free" really means "trial"
Three patterns to recognise before you commit to any free chatbot tier.
Pattern 1: one-time AI quota dressed up as a free plan. The vendor offers a free account that includes a small AI allotment, calls the account "free forever," and quietly notes that the AI quota does not refill. Tidio Lyro at 50 conversations is the cleanest example. The Tidio account itself is free forever (you can use rules-based chat indefinitely), but the AI piece, which is the part you actually want, ends after 50 conversations and converts you into a paying Lyro customer.
Pattern 2: deletion-after-inactivity on the free tier. The vendor caps free agents at a low message quota AND auto-deletes them if they go quiet for a fixed window. Chatbase deletes free agents after 14 days of inactivity. This is fine if your bot gets continuous traffic; it is brutal if you are building a side project that takes three weeks between testing sessions, because your training data and configuration vanish.
Pattern 3: branding plus feature gating as the conversion lever. The free tier works forever, but every visible surface (widget, email transcripts, hosted knowledge base) carries the vendor's "Powered by" label, and key workflow features (webhook export, CRM integrations, analytics depth, removing branding) are gated to paid tiers. Tawk.to is the most honest example of this pattern: the core product is genuinely free with no message cap, but removing the "Powered by Tawk.to" branding costs $29/month on annual billing. This is fine if you are okay with the branding; it is annoying if you discover after launch that your storefront looks unprofessional with someone else's logo at the bottom of every chat.
None of these patterns are dishonest by themselves. They become traps only when the marketing obscures them. We label each vendor below by which patterns apply.
Evaluation criteria
Six axes that we scored every free tier on, weighted toward what matters for a small site or solo founder.
Renews monthly versus one-time. Does the included quota refresh every month, or is it a single bucket you consume once?
Hard cap on messages or conversations. What is the ceiling, and is it expressed in messages, AI conversations, or live-chat conversations? These are not interchangeable units.
Branding visibility. Is "Powered by Vendor" visible on the widget, the email transcript, the hosted knowledge base? Is removing it possible on the free tier or paywalled?
Training-data cap. For AI chatbots specifically: how much content can you train on (number of pages, KB of text, number of files) on the free tier?
Workflow integrations on free. Webhook export, Zapier, CRM push, Slack notifications, lead capture to email. Which of these work on the free tier, and which require a paid plan?
GDPR DPA available on free. For EU traffic: does the vendor sign a Data Processing Agreement on the free tier, or only on paid plans?
The scorecard at the bottom of this page captures all six axes per vendor so you can re-weight them for your specific situation.
#1 Tawk.to: the truly-free live chat default
Tawk.to is the closest thing to "free forever with real workflow features" in this category. The free plan includes unlimited agents, unlimited chat volume, unlimited sites, email ticketing, a hosted knowledge base, and basic contact management. There is no message cap and no conversation cap.
The catch. Tawk.to is primarily a live chat tool, not an AI chatbot. There is an AI assist feature that uses GPT-style summarisation and reply suggestions, but the core experience is "a human (you or a teammate) answers the chats." Visitor-facing AI deflection is not the headline feature. Branding ("Powered by Tawk.to") is visible on the widget, knowledge base, and email templates by default; removing it costs $29/month on annual billing.
Free-tier kind. Truly free forever with hard caps (the caps are on AI capability and branding, not on volume).
Best for. Solo founders and indie sites that want a real chat channel on their site without paying, are okay with branding, and prefer to answer chats themselves rather than deflect everything via AI.
#2 Crisp: free unlimited conversations with 2 seats
Crisp's free plan is unusual in that it has no conversation limit and no time restriction. You get 2 seats, the website widget, basic team inbox, and the core chat experience. The limitation is on seats (only 2) and on advanced features: Crisp's Hugo AI credits, the AI workflows, and the advanced automation features are paywalled on the Pro tier.
The catch. "Free with AI" is a stretch. The free plan is genuinely useful as a live chat tool but the AI agent (Crisp's Hugo) is a paid add-on. If you specifically need an AI chatbot that answers questions from your knowledge base on the free tier, Crisp is not it; you would pick ChatRaj Free or Chatbase Free instead.
Free-tier kind. Truly free forever (for live chat). AI is gated.
Best for. Small teams of 1 or 2 people who want unlimited chat volume free and are happy to answer messages themselves. Bad fit if AI auto-deflection is the goal.
#3 ChatRaj Free: 100 AI messages per month, 1 bot, branding visible
ChatRaj's Free plan is targeted at solo founders and side projects: 100 AI messages per month, 1 bot, ChatRaj-branded widget. The retrieval is the same hybrid BM25 plus semantic stack as on the paid tiers, so answer quality on the free tier is not nerfed. The 100-message ceiling renews every month.
The catch. 100 messages goes fast on any site with real visitor traffic. A blog post that catches a brief social media moment can blow through 100 messages in a day. The widget shows "Powered by ChatRaj" and there is no option to remove it on the free tier. Lead-capture webhook export is available but limited to CSV download (no live webhook) on Free; the live webhook turns on at $29 Pro. GDPR DPA is paid-tier-only.
Free-tier kind. Truly free forever with hard caps. Honest about the caps (no surprise overage, no auto-deletion).
Best for. Solo founders validating whether a chatbot on their site is worth paying for, technical writers running personal documentation sites, and indie SaaS at pre-launch with light traffic. Once you cross 100 messages per month consistently, the $29 Pro plan covers 10,000 messages and removes the cap pressure.
#4 Userlike Free: live chat with canned responses, no AI
Userlike's Free plan includes the website widget, customisation of colors and welcome messages, multi-language support (chat UI in 26 languages), and a small number of operators. The free experience is keyword-triggered canned responses rather than generative AI: you write a response, attach a keyword, and the bot fires when a visitor uses that keyword.
The catch. The AI-powered chatbot in Userlike's product starts at the Corporate tier (paid). The Free tier and the Team tier explicitly do not include AI. So Userlike Free is "a chat widget plus canned replies," not "a free AI chatbot." We include it on this list because it shows up in "free chatbot" search results, but the AI label only applies to paid tiers.
Free-tier kind. Truly free forever (for live chat with canned responses). No AI on free.
Best for. Small German-speaking or EU-focused businesses (Userlike is EU-hosted with strong GDPR posture by default) that want a free chat widget with simple keyword triggers and do not need generative AI yet.
#5 Tidio with Lyro: a free trial dressed as a free tier
Tidio's free plan covers the live chat product and rules-based automation indefinitely. The Lyro AI agent is the part most people search for when they look for "free AI chatbot," and Lyro's free allotment is 50 AI conversations TOTAL, not 50 per month. Once exhausted, Lyro stops responding and you upgrade to the Lyro add-on (starts at $39/month for 50 monthly conversations) or to the Plus plan at $749/month where Lyro is bundled.
The catch. This is the clearest example of pattern 1 above: a free quota presented as a plan feature that is actually a one-time trial. Tidio's own documentation is explicit that the 50-conversation Lyro quota does not reset. The non-Lyro parts of Tidio Free (live chat, rules-based bots, multi-channel inbox at limited tiers) are genuinely free forever.
Free-tier kind. Free trial disguised as free (for the AI piece). Free forever (for live chat without AI).
Best for. Teams that want to try Lyro to see if AI deflection works on their store before committing to $39/month. Not a long-term free option for AI.
#6 Chatbase Free: 50 message credits per month, 14-day deletion
Chatbase's free plan renews 50 message credits per month, supports 1 AI agent, includes 400 KB of training content, and shows "Powered by Chatbase" branding on every response. The catch is the deletion clause: agents on the free tier are deleted after 14 days of inactivity. This protects Chatbase from hosting abandoned bots forever; for users it means the free tier is hostile to side projects that get sporadic traffic.
The catch. 50 message credits is fewer than 50 conversations, because a credit varies by model (a Claude 4.5 Sonnet reply costs more credits than a Claude 4.5 Haiku reply), so the actual usable volume depends on which model you pick. Webhook export, AI Actions (function calling), and Zapier integrations are paywalled to higher tiers.
Free-tier kind. Truly free forever (in licensing) but functionally a trial due to the 14-day inactivity deletion. Watch the deletion clause.
Best for. Builders who want to ship a quick proof of concept and either upgrade within 14 days or accept that the bot will be deleted. Bad fit for "set it and forget it" personal sites.
#7 The open-source self-hosted category: Botpress v12, Rasa Open Source, Chatwoot
This is the truly different shape of "free." You download the source, run it on your own server, and the vendor's licensing fee is $0 forever.
Botpress v12 is the open-source predecessor of today's Botpress Cloud. The repository is MIT-licensed and still available on GitHub. Botpress has shifted its primary investment to the cloud product, so v12 is in maintenance mode rather than feature development. Teams that want a self-hosted GPT-powered chatbot platform without monthly fees can still run v12 in production, but they are accepting an older codebase.
Rasa Open Source is Apache 2.0 licensed and remains the strongest open-source NLU and dialogue management framework. As of 2026, Rasa Open Source is in maintenance mode and the company's forward investment goes to Hello Rasa and CALM (Conversational AI with Language Models). For greenfield work, Rasa Pro offers a Free Developer License with up to 1,000 conversations per month at no cost. If you want production-grade conversational AI with code-level control over the dialogue policy, Rasa is the technical pick.
Chatwoot is MIT-licensed and runs over 50,000 self-hosted production installations as of 2026. It is a multi-channel inbox (website chat, email, WhatsApp, Telegram, Instagram, Facebook, SMS, Line) rather than a pure AI chatbot, but it has AI assist features and integrates with OpenAI for response suggestions. Self-hosting requires Postgres, Redis, and a Linux server.
The honest cost of self-hosting. The license is free. The hosting bill is not. A small Chatwoot instance on a cloud VM with managed Postgres and Redis typically lands at $20-$50/month in infrastructure alone. Add backup, monitoring, patching, and engineering time for upgrades, and the realistic total cost of ownership for a self-hosted open-source chatbot is $100-$300/month for a small site, and substantially more if you need engineering time to maintain the dialogue model. Self-hosting wins on data sovereignty and customisation depth, not on dollar cost.
Free-tier kind. Free in licensing, paid in time and hosting.
Best for. Technical teams that need full data residency, want to fine-tune behavior at the code level, or have a strict no-SaaS policy. Bad fit for non-technical operators.
Decision tree: which free chatbot is right for you
Three quick paths.
- You want a free chat widget on your site today, AI optional, willing to answer chats yourself. Pick Tawk.to. Truly unlimited, truly free, visible branding is the only meaningful tradeoff.
- You want a free AI chatbot that answers questions automatically and you have light traffic (under 100 messages/month). Pick ChatRaj Free. The 100-message ceiling renews monthly, the retrieval quality matches paid tiers, no auto-deletion.
- You want to try AI deflection briefly and budget is not the constraint. Pick Chatbase Free or Tidio Lyro free quota for the trial, knowing both convert to paid quickly.
- You have engineering time and want full control plus zero monthly fees forever. Self-host Chatwoot or Botpress v12 or Rasa. Accept the $20-$50/month infrastructure floor and the maintenance burden.
The wrong path is picking Tidio Lyro thinking the 50-conversation quota is monthly, or picking Chatbase for a side project that gets sporadic traffic and discovering the agent was deleted three weeks later.
When to graduate to paid
Free tiers are great for validation. Three signals that it is time to pay.
You consistently hit the message cap before month-end. If ChatRaj Free's 100 messages or Chatbase Free's 50 credits run out by mid-month for two months in a row, you have a real chatbot use case and a $29-$40/month upgrade pays for itself in support deflection.
Branding is hurting your conversion rate. On a homepage with traffic that converts to paying customers, "Powered by Tawk.to" or "Powered by ChatRaj" looks unfinished. Brand-conscious operators usually upgrade for the white-label widget within 30 days.
You need workflow integrations. The minute you want captured leads to flow into Klaviyo, HubSpot, or Mailchimp automatically, you need webhook export on the paid tier. Most free tiers gate webhook export behind a paywall; CSV download alone is workable but creates a manual step that does not scale.
If none of those signals are firing for you, stay free. The free tier exists exactly so you can validate without paying, and a vendor that pressures you off the free tier before you have validated is not the vendor you want.