Key takeaways:
- AI Engine is the most-installed WordPress chatbot plugin (100,000+ installs, 4.9 stars)—best if you’re comfortable bringing your own model API key.
- Tidio is the best all-rounder: a hosted AI agent (Lyro) that resolves up to 67% of support conversations on its own, with native WooCommerce support.
- WPBot is the best genuinely free pick with real RAG and no per-conversation billing, from $39/year.
- HubSpot (200,000+ installs) wins if you want a free CRM that happens to include a chatbot builder.
- The one thing that decides a 2026 purchase: the bot should train on your own content and let you choose the AI model behind it.
- Every number here is pulled straight from the wordpress.org repository—real install counts and review volumes, not figures copied from a year-old table.
The best WordPress chatbot plugin in 2026 is the one that trains on your own content instead of running a script you wrote by hand. On that test, AI Engine leads the category on adoption with 100,000+ active installs, Tidio is the strongest all-rounder at 80,000+ installs, and WPBot is the best genuinely free option.
Every figure below comes straight from the wordpress.org plugin repository. Active install counts are the number most roundups skip, and they tell you more about a plugin’s real health than a polished marketing page ever will.
AI is now the main reason people add a chatbot at all, and the adoption numbers back that up. So this list drops the live chat plugins with no real AI, along with the dead tools that stopped shipping updates in 2021 but still fill other roundups.
Use live chat to support your customers in real-time
Comparison: 8 WordPress chatbot plugins at a glance
Every plugin ranked below comes with the wordpress.org repo data no other listicle publishes. Active installs and review volume are the fastest way to judge a plugin’s real health, and every tool here is one people actively install and maintain in 2026, not one of the abandoned names that still fill other roundups.
| Plugin | Best for | Active installs | Rating (reviews) | Free tier | Starting paid price |
|---|---|---|---|---|---|
| AI Engine | Power users, developers | 100,000+ | 4.9 (851) | Yes (no RAG) | $79/yr |
| HubSpot | Free CRM + chat | 200,000+ | 4.3 (207) | Yes (CRM) | $20/seat/mo |
| Tidio | Hosted AI agent (Lyro) | 80,000+ | 4.7 (396) | Yes (50 convos/mo) | $24.17/mo |
| Chatway | Live chat + helpdesk | 30,000+ | 5.0 (744) | Yes (forever) | $24/mo |
| WPBot | Cheap RAG, no per-chat fees | 5,000+ | 4.7 (122) | Yes (Lite) | $39/yr |
| Jotform AI | No-code AI agents | 5,000+ | 5.0 (1) | Yes (100 convos/mo) | $34/mo |
| MxChat | Self-hosted RAG, lifetime price | 2,000+ | 5.0 (29) | Yes (bring your key) | $69.97 once |
| Robofy | No-code Gemini bot | 100+ (repo) | 5.0 (2) | Yes (4,500 credits) | $19/mo |
How we tested
We shortlisted plugins by active installs and update frequency on the wordpress.org repository, then installed the free tier of each on a clean WordPress 7.0 site running a default block theme. For each one we checked four things: how long setup took, whether the free tier does anything useful, whether training on our own content worked, and how much the widget slowed the page down.
The 8 best WordPress chatbot plugins in 2026
1. AI Engine—the most powerful, if you’re comfortable with API keys
AI Engine is the most-installed chatbot plugin in the WordPress repository, with 100,000+ active installs and a 4.9 rating across 851 reviews. It’s the pick for anyone who wants a real AI framework rather than a hosted widget, and it’s among the most actively maintained plugins in the category.
Instead of billing per conversation, AI Engine connects to whichever model you want (OpenAI, Claude, Gemini, Mistral, Perplexity, or anything on OpenRouter) using your own API key. You pay the model provider directly, which works out cheap at low volume and stays flexible as prices shift.
- Free tier reality: The free plugin runs a working chatbot, but the parts that matter most in 2026 (embeddings, knowledge bases, AI forms) are Pro-only. So “free” here means a basic bot, not a bot trained on your site.
- Pricing: AI Engine Pro is $79/year, plus whatever your chosen model’s API costs.
- WooCommerce: Supported through Pro’s advanced tools, though it’s aimed at developers, not a turnkey store widget.
- Honest limitation: You need to be comfortable pasting in an API key and thinking about token costs. If that sentence made you nervous, look at Tidio or Chatway instead.
2. HubSpot—the free CRM that happens to include a chatbot
The HubSpot plugin has 200,000+ active installs, the largest base on this list, with a 4.3 rating from 207 reviews. It earns its place because the free tier is a genuine CRM with a live chat and chatbot builder attached, not a 14-day trial.
If you already want a CRM, contact forms, and email marketing in one place, adding the chatbot costs nothing extra. That bundling is the whole appeal.
- Free tier reality: Free for up to two users and includes the chatbot builder, live chat, and forms. The bot is rule-based out of the box; the newer AI features sit on paid tiers.
- Pricing: Marketing Hub Starter lists at $20 per seat per month, and drops on annual billing. The chatbot itself stays free.
- WooCommerce: Connects through a separate integration, not this plugin directly.
- Honest limitation: This is a marketing-and-sales suite first. If all you need is a support bot trained on your docs, it’s heavier than the job.
3. Tidio—the hosted AI agent that resolves tickets on its own
Tidio has 80,000+ active installs and a 4.7 rating from 396 reviews, and it’s the easiest way to put a real AI agent on a WordPress site without touching an API key. Its Lyro AI trains on your knowledge base and resolves up to 67% of support conversations autonomously, with a guaranteed 50% resolution rate on the Premium plan.
- Free tier reality: Genuinely free, with 50 billable conversations a month and 50 one-off Lyro AI conversations to try the agent. It’s enough to see whether Lyro answers your questions correctly before you pay.
- Pricing: Paid plans start at $24.17/mo; the Lyro AI add-on starts at $32.50/mo.
- WooCommerce: Native: Lyro can read cart and order data to answer “where’s my order?” and recommend products in chat.
- Honest limitation: The free Lyro conversations don’t refresh monthly, so high-traffic stores will move to a paid Lyro plan fast. See our Lyro review for the unfiltered version.
For the wider picture on where hosted agents are heading, our guides to AI customer service chatbots and agentic customer service software go deeper than this WordPress-specific piece can.
4. Chatway—the highest-rated live chat with a pay-as-you-go bot
Chatway holds a perfect 5.0 rating across 744 reviews, the strongest review profile here, with 30,000+ active installs. It’s a polished live chat and helpdesk tool first, with an AI chatbot you can switch on when you want it.
The pricing model is unusual and, for a lot of sites, smart. You don’t pay a flat AI fee. You pay $0.50 per conversation the bot actually resolves, with the first 10 free. Low-volume sites barely pay anything.
- Free tier reality: Free forever, with one seat and 30 days of chat history. Unlimited conversations and full widget customization are included even on free.
- Pricing: The Solo plan is $24/mo billed annually, or $29/mo month-to-month. AI resolutions are $0.50 each on top.
- WooCommerce: Deep integration: cart contents, order history, and store info surface right in the chat.
- Honest limitation: The AI trains on your content, but Chatway doesn’t publicly name the underlying model, so you can’t pick your LLM the way you can with AI Engine or WPBot.
Boost customer satisfaction with a professional AI agent
5. WPBot—the cheapest real RAG chatbot, no per-conversation billing
WPBot by QuantumCloud is free, has 5,000+ active installs, a 4.7 rating from 122 reviews, and it’s one of the most actively maintained tools here. It’s also the #2 organic result on some of these searches, so Google already trusts it.
What makes it stand out at the price is real retrieval-augmented generation. WPBot builds a vector knowledge base from your pages, PDFs, CSVs, and JSON, then answers from it using OpenAI, Gemini, Grok, or anything through OpenRouter, including Claude.
- Free tier reality: A free “Lite” version runs a working bot. RAG and multi-LLM support come in the paid tiers.
- Pricing: Starter is $39/year, or $149 once for a lifetime license. WooCommerce support needs the $99/year Professional tier.
- WooCommerce: Yes, on Professional and up.
- Honest limitation: The install base is small next to AI Engine’s, and the settings screen is dense. Power for your money, less polish.
6. Jotform AI Chatbot—no-code agents that auto-train on your site
Jotform’s chatbot plugin has 5,000+ active installs and is actively maintained, though its review count is still tiny (a single 5-star rating so far). It’s worth watching because the free tier is generous and the setup is genuinely no-code.
Point it at your site and it crawls your content to train the agent, then connects into Jotform’s forms and payments if you use them.
- Free tier reality: Free plan includes 5 agents, 100 conversations a month, and a 1-million-character knowledge base—more than enough to test properly.
- Pricing: Paid plans start at around $34/mo (Bronze), though the free tier is generous enough that most small sites won’t hit its limits soon.
- WooCommerce: Offers product Q&A, order tracking, and cart-abandonment features through Jotform’s own integration.
- Honest limitation: Thin review history means less community track record. And it pulls you toward the wider Jotform suite, which you may not want.
7. MxChat—self-hosted RAG with a one-time price
MxChat is the pick if recurring fees annoy you. It has 2,000+ active installs and a perfect 5.0 rating from 29 reviews, and it was built specifically for WordPress rather than ported from a SaaS product. The Pro license is a one-time $69.97, with no monthly or per-conversation charges.
Its RAG is strong for the price. It trains on your posts, pages, WooCommerce products, PDFs, and even YouTube videos, and it works with OpenAI, Claude, Gemini, Grok, DeepSeek, and 100+ models via OpenRouter.
- Free tier reality: The free “Basic” version on wordpress.org runs the AI chatbot; you bring your own model API key.
- Pricing: Pro is $69.97 once. Agency tiers go up from there. You still pay your LLM provider for usage.
- WooCommerce: Full integration: the bot learns your product catalog, prices, SKUs, and categories.
- Honest limitation: Smaller install base, and the bring-your-own-key model means the true cost depends on your API usage, not the license.
8. Robofy—a no-code Gemini bot managed from the cloud
Robofy is a Google Gemini-powered chatbot that crawls your site and answers from it, aimed squarely at people who never want to see an API key. Be straight about the repo numbers, though: the WordPress plugin itself shows only 100+ installs and 2 ratings, because Robofy is really a hosted SaaS with its own dashboard. Most of its footprint lives off wordpress.org.
- Free tier reality: Free plan gives you 4,500 one-time credits, 2 agents, and 5 crawled pages, with “Powered by Robofy” branding on the widget.
- Pricing: The Starter plan is $19/mo billed annually.
- WooCommerce: Yes—product browsing, catalog search, add-to-cart, and order-status lookups.
- Honest limitation: The plugin is a thin connector to Robofy’s cloud, so you’re really buying into their platform, not a self-contained WordPress tool. Judge it on the SaaS, not the repo rating.
Best free WordPress chatbot plugins
The best genuinely free WordPress chatbot plugins in 2026 are HubSpot (free CRM with a chatbot builder for two users), Chatway (free forever, one seat, unlimited chats), and AI Engine or WPBot if you’re happy bringing your own model API key. The catch is that “free” means very different things across these tools, and most listicles never explain the difference.
Genuinely free vs free trial
A genuinely free plan runs forever with real limits. A free trial runs for a couple of weeks and then stops. On this list, HubSpot, Chatway, Tidio, AI Engine, WPBot, MxChat, and Jotform all have genuinely free tiers. None of the paid-only “free trial” tools made the cut, because a trial isn’t a free plugin.
What each free tier really includes:
- HubSpot—free for two users, chatbot builder and live chat included, no time limit. The AI features cost extra.
- Chatway—free forever, one seat, 30-day chat history, unlimited conversations. AI resolutions are $0.50 each after the first 10.
- Tidio—50 billable conversations a month plus 50 one-off Lyro AI conversations. The Lyro trial conversations don’t refresh, so treat them as a test drive.
- AI Engine / WPBot / MxChat—free plugins that run a bot, but the AI itself uses your own model API key, so “free” means the plugin, not the model tokens.
What to look for in a WordPress chatbot plugin in 2026
The features that decide a WordPress chatbot purchase in 2026 aren’t the ones the old listicles list. Templates and canned reports matter far less than whether the AI can train on your own content and which model powers it. This checklist predicts whether you’ll still be happy in six months.
- Trains on your own content (RAG). This is the biggest shift. The best plugins crawl your pages, docs, and products and answer from them. AI Engine, WPBot, MxChat, Robofy, and Tidio’s Lyro all do this; a bot that can’t is a 2022 bot. If you want the mechanics, here’s how to train an AI chatbot on your own data.
- Which LLM you get, and whether you can choose. AI Engine, WPBot, and MxChat let you pick OpenAI, Claude, Gemini, or open models. Hosted tools like Tidio and Chatway manage the model for you, which is simpler but less flexible.
- WooCommerce support. If you sell, this is non-negotiable—see the use cases below.
- Page-speed impact. Chat widgets load JavaScript on every page. Check your Core Web Vitals before and after; a heavy widget quietly costs you rankings.
- Self-hosted vs SaaS, and one-time vs subscription. MxChat’s one-time license and WPBot’s lifetime option suit people who hate recurring bills. Tidio, Chatway, and Robofy are hosted subscriptions that trade control for convenience.
- GDPR and data residency. If you serve EU visitors, check where conversations are stored and whether the vendor signs a data processing agreement.
How to add a chatbot to your WordPress site
Adding a chatbot to WordPress takes about five minutes and no code. Install the plugin, connect your account, train or configure the bot, and test it before you go live.
- In your WordPress dashboard, go to Plugins → Add New, search for the plugin, and click Install then Activate.
- Open the plugin’s settings and connect or create your account (or paste your model API key for tools like AI Engine and WPBot).
- Train the bot on your content—point it at your site URL, or upload your docs and product data.
- Send a few test questions, check the answers, then enable the widget on your live site.
If you use Tidio, you can also set it up straight from your Tidio account and connect WordPress in a couple of clicks. Still deciding whether you need one? Start with what a chatbot is and how it works.
Which WordPress chatbot plugin should you choose?
The right plugin depends on the size of your operation and how much you want to manage yourself. The quick version, by business type:
- Solo site or freelancer: Start free with Chatway or HubSpot, or run WPBot if you want RAG on a tiny budget. All three cost nothing to launch.
- Growing SMB: Tidio is the easiest path to a real AI agent that resolves tickets on its own, with WooCommerce support built in. MxChat is the value pick if you’d rather pay once than subscribe.
- Developer or agency: AI Engine gives you the most control, multi-LLM support, and a 100,000-install track record. Pair it with your own API keys and you can build almost anything.
- WooCommerce store: Tidio, Chatway, or Robofy, since all three read live store data and can recover carts. For non-WordPress stores, our ecommerce chatbot roundup covers Shopify and the rest.
FAQs
Yes. HubSpot, Chatway, Tidio, AI Engine, WPBot, MxChat, and Jotform all have genuinely free tiers, not just trials. HubSpot’s free plan includes a chatbot builder for two users with no time limit, and Chatway is free forever for one seat with unlimited conversations.
For most sites, Chatway is the best free WordPress chatbot because it’s free forever, rates 5.0 across 744 reviews, and includes unlimited conversations on one seat. If you want AI that trains on your own content for free, WPBot’s Lite version is the better pick, as long as you’re comfortable adding a model API key.
No. WordPress core doesn’t include a chatbot, so you add one through a plugin. That’s why the repository has hundreds of chatbot plugins, from simple button widgets to full RAG-based AI agents like AI Engine and WPBot.
Yes. AI Engine, WPBot, and MxChat all let you connect OpenAI’s ChatGPT models and Anthropic’s Claude, usually through your own API key or OpenRouter. This lets you pick the model that fits your budget and answer quality, rather than being locked to one provider.
They can. Chat widgets load JavaScript on every page, which can affect your Core Web Vitals. Test your page speed before and after installing, and favor lightweight or hosted widgets if speed is tight. A well-built widget loads asynchronously and has minimal impact.
Yes. Tidio has a native WooCommerce integration, so its Lyro AI can read cart contents and order data to answer questions like “where’s my order?” and recommend products directly in the chat. It’s one of the reasons WooCommerce stores pick it.
AI Engine is the most-installed and highest-rated chatbot plugin in the WordPress repository (100,000+ installs, 4.9 stars), which makes it the strongest all-round pick for people comfortable with API keys. For a hosted AI agent with no setup friction, Tidio is the easier choice, and WPBot is the best value for RAG on a small budget.
