Free AI Chatbot for WordPress: 5 Best Options

Visitors often leave a WordPress site because they cannot get a quick answer about price, delivery, availability, or services. A free AI chatbot for WordPress can answer common questions, collect contact details, and keep working after hours without requiring you to write code. The best choice depends on what “free” includes: Brevn and Chatbase suit website-trained answers, Tidio combines AI with live chat, Botpress offers deeper workflow control, and AI Engine gives technical WordPress users a free plugin that connects to their own AI provider.

What is an AI chatbot for WordPress?

An AI chatbot for WordPress is a chat box that understands natural questions and writes answers using a language model and the business information you give it.

Visitors ask natural questions. The chatbot searches approved pages or documents, writes an answer, and can offer human follow-up.

Rule-based chatbots follow buttons and paths written in advance. AI chatbots understand more phrasing and use existing content instead of hundreds of scripted replies.

What does “free” really mean?

Free usually means a limited hosted plan, a temporary trial, or free software that still has outside costs.

Free plans

A free plan continues without a subscription but limits messages, storage, agents, features, or branding. Each vendor counts usage differently.

Free trials

A trial temporarily unlocks paid features and may require a card or renew automatically. Read the checkout screen before starting.

Open-source or free plugins

A free plugin may not include AI usage. AI Engine is free, but you pay your chosen model provider and handle more maintenance.

Check whether the bot stops, deletes inactive data, charges for overages, or requests an upgrade. Confirm whether branding and lead capture are included.

What should you look for in a free chatbot?

Choose the simplest tool that can answer from your content, capture the next step, and stay within a limit you understand.

• Easy WordPress installation

  Prefer an official plugin or one asynchronous embed script. You should not need to edit PHP files or rebuild your theme.

• Answers from your content

  Check whether the bot crawls your website, accepts documents, or makes you enter every answer manually. Ask how content is refreshed.

• Useful lead capture

  A business chatbot should collect a name and contact method at the right moment and keep the question or transcript for follow-up.

• Mobile-friendly design

  The launcher must be easy to tap without covering checkout, cookie, call, or navigation buttons on a small screen.

• Clear privacy controls

  Know which company processes chats, where contact details appear, what can be deleted, and whether visitors receive a privacy notice.

Best free AI chatbot for WordPress: 5 options

These options range from fast no-code tools to a configurable WordPress plugin. Limits were checked on official pages on October 9, 2026.

1. Brevn: best for fast website training and lead capture

Brevn is best for freelancers, agencies, and small businesses that want an “AI employee” to answer from an existing website and collect leads.

Paste your website URL, let Brevn crawl the public pages, and it builds an AI agent that answers from that content. Add its asynchronous embed script through a code plugin or custom-code area. No coding or manual question training is required.

• Fast setup: URL in, crawl, customize, and paste one script.
• Grounded answers: Replies use content from your website instead of general internet knowledge.
• Small-business fit: One agent can act as an after-hours front desk for a local business; higher plans support multiple agents for agencies.
• Lead capture: The Free plan can collect contact details, send email alerts, and keep conversation history.

Free plan limits: $0 with no card, 1 agent, and 50 AI replies per month. It includes a customizable widget, lead capture, email alerts, and conversation history. The widget displays “Powered by Brevn,” and the free tier does not include automatic re-crawls, analytics, lead export, or custom footer branding.

Downside: Brevn learns from public website pages, not private PDFs. It works best when your WordPress content already contains accurate services, policies, prices, and FAQs.

2. Tidio: best for combining AI with live chat

Tidio is best for WooCommerce stores and small support teams that want AI answers, live human chat, and automation in one established platform.

Lyro uses support content for answers, while Tidio's live chat lets a person continue the conversation. Its official WordPress plugin makes installation straightforward.

Free plan limits: Every account starts with 50 Lyro AI conversations, plus a 7-day paid-feature trial without a credit card. Confirm the allowance refresh terms before relying on it for a busy store.

Downside: Tidio combines Lyro, human chat, and Flows with separate limits, so it takes longer to understand than a single-purpose chatbot.

3. Chatbase: best for multiple knowledge sources

Chatbase is best for site owners who want a chatbot trained on website pages, files, text, or question-and-answer pairs.

Chatbase crawls pages or a sitemap and can gather leads through a form or conversation. Its official WordPress plugin only needs the Agent ID from your dashboard.

Free plan limits: 1 AI agent and 50 message credits per month. The free tier has limited knowledge storage, and free agents are deleted after 14 days of inactivity. Automatic weekly source re-sync is reserved for Standard and Pro, so free users must manually sync changed website content.

Downside: Fifty credits can disappear quickly because model choice and response complexity affect usage. Check the meter after realistic tests.

4. Botpress: best for custom workflows

Botpress is best for agencies or advanced users who want to design actions, workflows, knowledge searches, and lead collection in detail.

Its knowledge base accepts websites, PDFs, HTML, text, Word documents, and Markdown. Information-capture cards collect leads. The WordPress setup uses WPCode to insert Botpress Webchat site-wide.

Free plan limits: 100 conversations per month with AI usage included. Botpress defines a conversation as an exchange with at least two messages in a billing month. The free tier is hard-capped and does not support paid conversation or storage add-ons.

Downside: Building and testing Botpress workflows has a steeper learning curve than using a website-first service.

5. AI Engine: best for direct WordPress control

AI Engine by Meow Apps is best for hands-on WordPress owners who want the chatbot managed inside wp-admin and are comfortable creating an AI provider account.

The free plugin connects directly to OpenAI, Anthropic, Google, Mistral, and other providers. Install it from WordPress.org, add your provider key under Meow Apps > AI Engine, and configure the chatbot.

Free plan limits: The plugin is free and does not add a usage cap or markup, but AI calls are not free. You pay the chosen provider directly. Set provider billing limits and test costs before exposing the chatbot to public traffic.

Downside: AI Engine is not a turnkey lead inbox. Lead handling, safeguards, model costs, and maintenance need more owner involvement.

How do the free WordPress chatbots compare?

Brevn is the quickest lead-focused option, Tidio is strongest for live chat, Chatbase supports varied knowledge, Botpress offers workflow depth, and AI Engine gives WordPress users the most direct control.

If you want the quickest route from WordPress pages to useful answers and captured leads, start with Brevn’s Free plan. You get 1 agent and 50 AI replies each month without adding a card.

How do you add an AI chatbot to WordPress in 5 steps?

Create the chatbot outside or inside WordPress, give it reliable content, install its widget, and test the live result before promoting it.

1. 1

   Create the chatbot

   Choose the tool that matches your goal. Use a simple website-first product for questions and leads, or a workflow builder when you need custom actions.

2. 2

   Train it on current content

   Crawl the WordPress site or upload approved documents. Include services, product details, delivery, returns, hours, locations, and FAQs. Remove outdated claims first.

3. 3

   Get the plugin or embed code

   Install the vendor's official plugin when available. Otherwise copy the asynchronous script and use a reputable code-insertion plugin instead of editing theme files directly.

4. 4

   Publish it site-wide

   Add the Agent ID or script, clear WordPress and CDN caches, and visit the public site in a private browser window. Confirm the widget appears on desktop and mobile.

5. 5

   Test real questions

   Ask ten questions copied from emails, calls, and WooCommerce enquiries. Check accuracy, uncertainty, links, lead delivery, mobile layout, and the path to a person.

For script placement on common WordPress setups, follow our step-by-step chatbot embed guide. If the site receives traffic but few enquiries, use the broader website inquiry checklist before blaming the chatbot.

Which chatbot mistakes should you avoid?

Avoid untested answers, dead ends, poor mobile placement, and unnecessary page weight.

• Launching without testing. Ask about prices, delivery, locations, edge cases, and missing information. The bot should admit uncertainty rather than improvise.
• Offering no human follow-up. Let visitors leave details, open live chat, call, email, or reach the contact page.
• Hiding content on mobile. Test near sticky menus, cookie notices, add-to-cart controls, and call buttons. The launcher must not block the next action.
• Slowing down WordPress. Use one asynchronous widget, remove duplicate chat plugins, and compare Google PageSpeed Insights before and after.

Frequently asked questions

Is there a free AI chatbot for WordPress?

Yes. Brevn, Tidio, Chatbase, and Botpress have limited free hosted options, while AI Engine is a free plugin that requires your own paid or metered AI provider. Compare what each product counts before choosing.

Will a chatbot slow down my WordPress site?

A well-built asynchronous widget should have a modest effect because it loads separately from the main page. Test Core Web Vitals before and after installation, and remove duplicate widgets or heavy marketing scripts if performance drops.

Does an AI chatbot work with WooCommerce?

Yes, but capabilities vary. A content-trained chatbot can answer published product, shipping, and return questions; deeper tasks such as checking orders or modifying carts require a WooCommerce integration and should be verified with the vendor.

Do I need an AI chatbot plugin for WordPress?

No. Hosted chatbots can be installed with a short script through a code-insertion plugin, theme custom-code area, or tag manager. An official plugin is convenient, but the embed approach is often just as simple and avoids storing AI logic in WordPress.

Can a free chatbot capture leads?

Some can. Brevn includes lead capture and email alerts on its Free plan, Chatbase provides a lead action, and Botpress can be configured to collect information. Always submit a test lead and confirm where the details and transcript arrive.

Is visitor data safe in an AI chatbot?

Safety depends on the vendor, configuration, and information visitors submit. Read the privacy policy, disclose relevant processing, collect only necessary fields, restrict dashboard access, and avoid inviting visitors to share passwords, payment cards, or sensitive health details.

Conclusion: which free AI chatbot for WordPress is best?

The best free AI chatbot for WordPress is the one that matches your actual job. Choose Brevn for fast website-based answers and leads, Tidio for AI plus live support, Chatbase for varied sources, Botpress for workflows, or AI Engine for direct WordPress control.

Test one site with real visitor questions. Keep the tool only if it is accurate, mobile-friendly, reliable, and affordable to upgrade.

Key takeaways

• Free plans usually limit AI replies, conversations, storage, features, or branding.
• Brevn provides 1 agent and 50 AI replies per month with lead capture on its Free plan.
• Tidio is useful for live support; Chatbase supports multiple source types; Botpress offers deeper workflows.
• AI Engine is a free WordPress plugin, but AI provider usage still costs money.
• Test answers, human follow-up, mobile layout, lead delivery, privacy, and speed before launch.

Related guides: custom ChatGPT for your data, embed a chat widget, and increase website enquiries. Sources: WordPress.org and WooCommerce documentation.