Klaviyo vs. Mailchimp: I Tested Both Email Platforms for 2026

Choosing between Klaviyo and Mailchimp usually starts with a practical question: how complex is your email marketing getting?

Some teams just need to build newsletters, import contacts, and launch campaigns without much setup. Others need cleaner customer data, more precise segments, automated flows, and messaging that stretches beyond email.

That is where the decision gets harder, and I can see why. Mailchimp keeps the campaign workflow simple and approachable. Klaviyo gives marketers more control over audience logic, e-commerce data, and multi-channel lifecycle messaging, but it takes more time to set up well. That sounds simple on paper, but the real test is what happens when campaigns get more demanding, and the setup has to keep up.

So I tested both email marketing tools across setup, contact imports, segmentation, templates, and campaign building to see where each adds friction, where each gives me more control, and which is better suited to the way a team actually scales.

If you are an e-commerce marketer, growth lead, or founder trying to choose between Klaviyo and Mailchimp, this breakdown will help you decide based on the kind of campaigns, segmentation, and automation your team actually needs.

Klaviyo vs. Mailchimp: At a glance

Here's the head-to-head comparison between Klaviyo and Mailchimp:

Note: These details are based on the capabilities as of May 2026 and are subject to change with new rollouts.

Klaviyo vs. Mailchimp: What’s different and what’s not?

Both tools let me import contacts, build segments, pick templates, and create email campaigns without code. The split shows up when the work gets more specific. Mailchimp keeps the job lighter. Klaviyo gives me more control, but it asks for more setup and more attention.

Here are some differences I came across while exploring the two software:

Klaviyo vs. Mailchimp: Key differences

In my experience, Mailchimp simplifies the campaign creation process by keeping everything visible and easy to access, from templates to audience segmentation and scheduling. However, Klaviyo takes a more structured approach, giving you more control over targeting, channels, and campaign settings before you even start designing the email.

• Contact import process: Mailchimp walked me through more steps: choose method, upload, organize, tag, match, subscribe, complete, and confirm. The flow was clear, but I had to do more by hand. When my file had a Consent column, I had to create a new field before I could keep moving. Klaviyo still needed mapping, but it felt closer to one clean pass. I mapped the file, picked channel consent, and moved on.
• Segment builder: Mailchimp can absolutely segment a list. I built one based on California contacts. But the segment flow felt like a tool for filtering an audience. Klaviyo gave me more segment paths right away. I could start from list status, marketing permission, location, properties, behavior, or predictive filters. That matters if the newsletter is not going to the full list every time.
• Pricing: From what I saw, both platforms use usage-based pricing, but they scale differently. Mailchimp follows a tiered-feature model, where you select a plan (Essentials, Standard, or Premium) based on the specific tools you need. Within those tiers, prices increase as your contact count grows. Critically, Mailchimp counts total contacts (including unsubscribed) and does not de-duplicate across different audiences; the same person on two lists counts twice.
  
  Klaviyo uses a flat-feature, channel-based model. Instead of choosing between software "tiers," you pay based on the number of active profiles and the channels you choose (Email, SMS, or both). This offers more predictability for advanced users because all marketing features, like predictive analytics and multi-step flows, are included on all paid plans. Klaviyo treats one person as a single profile even if they belong to multiple lists.
  
  For mobile messaging, Klaviyo uses a shared credit system across SMS, MMS, and WhatsApp, while Mailchimp sells SMS as a separate add-on and limits availability by country.
• Channels: When it comes to native messaging channels, Klaviyo supports email, SMS, RCS, WhatsApp, and mobile push — all managed within a single platform. Mailchimp’s is narrower: it focuses on email plus SMS marketing, and SMS is only available as an add-on for customers on Essentials or higher in supported countries. Mailchimp also notes that MMS is limited to U.S. and Canadian programs. For buyers who care about SMS, RCS, or WhatsApp marketing, that’s a meaningful gap.
• Integrations with other platforms: In Mailchimp, the integrations page with 330+ integrations felt more curated and discovery-led. I could see featured apps like QuickBooks, Shopify, Typeform, and Vimeo right on the screen, along with categories and “recommended for you” sections. It was clearly designed to help me quickly pick and connect tools with "recommended for you" sections that make it easy.
  
  Klaviyo's 300+ integrations are more filter-driven, organized around use cases like e-commerce platforms, marketing tools, and data integrations — less guided, but more structured around how data flows into segmentation and campaigns.
• Shopify integration: That difference shows up most clearly with Shopify. Both platforms connect with it, but Klaviyo goes deeper. It syncs customer profiles and order data, enables onsite tracking and sign-up forms, supports Shopify Markets for localized language, currency, and pricing, and syncs data back to Shopify. Mailchimp focuses more on syncing customer and order data and automating store events such as product views, cart activity, and checkout actions.
• Automation depth: From what I've seen, both platforms support automation, but Klaviyo seems more focused on cross-channel, behavior-based journeys. Mailchimp supports multi-trigger flows with conditional splits, webhooks, email, SMS, and up to 200 steps on higher plans, while Klaviyo puts more emphasis on flows across email, SMS, and push with splits based on customer behavior, profile data, and predictive analytics.

Klaviyo vs. Mailchimp: Key similarities

No matter the differences, the two platforms also share a good number of similarities, such as:

• Seamless import: I did not need a developer or an API call to get started. In both tools, I could upload a spreadsheet, map fields, and build from there.
• Newsletter workflow: In both tools, I could get far enough to judge the real work: audience segmentation, template choice, content build, preview, and campaign settings.
• Drag-and-drop editors: Mailchimp’s builder felt easier to use. Klaviyo’s builder gave me more control in a marketer's style. But neither one forced me into code for a normal newsletter.
• Free plan access: Both Klaviyo and Mailchimp gave me a free way to explore the platform before paying. I could get into the product, work through important setup steps, and evaluate core features without committing upfront, which made it easier to compare them side by side.

Klaviyo vs. Mailchimp: How they actually performed in my tests

This is where the differences become clearer. Each task exposed a different strength or limitation. Being free tools, both are free to use and can be easily evaluated. And that’s exactly what I did. Here is how each of them performed in my tests.

1. Profile setup

To start, I went through the onboarding process for both tools to see how quickly I could get inside the platform and how much setup each one required.

Mailchimp keeps things simple from the beginning. It asks for the basics like your email, business name, and address, then moves you forward quickly. What stood out to me was how it tries to guide you without slowing you down. During setup, it asked what marketing channels matter most to my business. Based on that, it tailors the dashboard once you are in.

It also gives you the option to import contacts, with an estimate of the contact list size, right there. But you can skip it and do it later, which I liked. Nothing felt forced. Another useful touch was the option to add your website URL. Mailchimp can automatically pull in details like your logo, colors, and brand assets. If you don’t have a website, you can skip that too.

Then it nudges you to connect tools like Shopify, Wix, Canva, and Meta Leads. One interesting detail I noticed is that Klaviyo itself appears as a migration option. So, Mailchimp is clearly built to help you move data during setup itself.

Within a few steps, I was inside the platform and ready to start working.

Klaviyo starts in a similar way but goes deeper. It asks for your name, company, and website first. One thing I noticed right away was that a phone number is required here. In Mailchimp, it was optional.

Then it walks you through more detailed questions about your business. You are asked about your industry, your main goals, and what platform you run your business on. It includes options like Shopify, WooCommerce, Wix, BigCommerce, and even custom setups. It also asks how many contacts you have, with clear ranges from zero to over a million. That part felt structured.

What made Klaviyo different was how it brings everything into one flow. It doesn’t just stop at basics. It also asks how you plan to use the platform. Email, SMS, WhatsApp, push notifications. You choose upfront. There’s also an option to book a walkthrough or live consultation during setup. I didn’t see that in Mailchimp.

Another thing I noticed was that branding is part of the onboarding itself. Instead of leaving it for later, Klaviyo tries to set things up properly from the start.

That said, this also made the process feel longer. Not complicated, but heavier.

Both platforms have their own take on profile setup. While Mailchimp kept the process simple and straightforward, Klaviyo made it more nuanced by delving into the details.

Verdict: Split; Mailchimp wins on speed, while Klaviyo sets a stronger foundation upfront.

2. Import contact lists

Next, I tested how easy it was to import contacts into both platforms. This mattered because contact setup is one of the first workflows new users encounter, and it quickly shapes how approachable the platform feels.

Mailchimp made a stronger first impression here. The add contacts option was visible from the home screen, so I did not have to search through the platform to begin. The import flow also offered several options, including app connections, copy-paste from a spreadsheet, CSV or TXT upload, and mobile contact import.

I liked how guided the CSV upload process felt. Mailchimp showed help resources inside the workflow, including step-specific guidance, file formatting support, and a sample CSV template. The process moved quickly without leaving me to guess what came next.

The main drawback was field mapping. Mailchimp handled obvious fields well, but CSVs with more columns still required manual fixes. That added a little friction to an otherwise simple workflow. I did like the final review step, which summarized the audience, tags, contact count, and whether existing contacts would be updated. Mailchimp also flagged invalid email domains before import, which helped keep the list clean.

Klaviyo was less intuitive at the start. I did not find a clear add contacts option right away, and the import path took more navigation. I had to go through Audience, then Lists and Segments, before reaching the create/import flow.

Once I found it, Klaviyo’s process felt more structured than Mailchimp’s. It built the workflow around lists and segments from the start, which made sense for a platform focused on customer data and audience behavior. I also liked that Klaviyo gave options for users who do not have contacts yet, such as building a signup form or subscriber page.

It also gives you the option to create your own CSV template. You can choose predefined identifiers and objects before importing, which makes the upload cleaner. I saw support resources on the right-hand side throughout the process, so help was available there as well.

Klaviyo stood out most in field mapping and consent setup. It handled column matching more cleanly than Mailchimp and gave me more control over profile properties. It also asked for messaging consent and subscribed channels, including email, text, transactional messages, and WhatsApp. That made the import process feel more detailed and better aligned with audience management.

Overall, both platforms handled contact import well. Mailchimp was easier to start with and felt more beginner-friendly. Klaviyo took longer to find, but once inside the workflow, it offered stronger mapping, consent, and list-building controls.

Verdict: Split; Mailchimp is fast, but Klaviyo provides depth in the process.

3. Creating lists and segments

After importing contacts, I moved on to segmentation. This is where email tools start to feel either basic or powerful, depending on how much control they give you.

Mailchimp keeps segmentation easy to find and easy to use. There’s a dedicated option to create segments, and you don’t have to start from scratch every time.

It comes with pre-built segments out of the box. I saw options like new subscribers, engaged subscribers, repeat customers, lapsed customers, and more. There are around nine of these, and they cover most common use cases. If you want something quick, these are helpful.

When I created my own segment, the builder worked with filters. You can segment based on tags, contact details, email activity, or SMS activity.

For example, I could filter by location using conditions like “address is,” “address is not,” “contains,” or “starts with.” So if I set “address contains California,” it pulled all contacts with that value in their address. You can stack multiple filters to narrow things down further.

The options felt flexible. Even though most filters are based on contact data or activity, the way they’re structured makes it easy to combine them and build useful segments without much effort.

Klaviyo also gives you a clear space for segmentation, but it frames things a bit differently. Lists and segments sit in the same section, and from there, you choose what you want to create.

It also has a segment library where you can start based on goals or use cases. For example, I saw options like engaged in the last 30 days, active profiles, subscribers, or unsubscribed users. That helped speed things up.

Once I started building a segment, the difference became clear.

Klaviyo goes beyond basic filters. It lets you segment based on things like:

• Properties about a contact
• What someone has done or not done
• Predictive analytics
• Whether someone can receive marketing
• Region-specific conditions like GDPR (for EU users)

This added a layer that I did not see in Mailchimp. It’s not limited to static data like location or tags. You can build segments around behavior and future likelihood as well.

Another thing I noticed was that segmentation isn’t limited to email. It also includes channels like SMS and push notifications, which makes sense given how Klaviyo positions itself.

That said, the structure felt slightly more rigid at first. The options are deep, but you need a bit more time to understand how they fit together.

Mailchimp does a good job with flexibility. It’s easy to build segments quickly, and the pre-built options save time.

Klaviyo goes further. It adds depth with behavioral data, predictive signals, and more detailed conditions. If you want to create segments that go beyond basic targeting, Klaviyo gives you more to work with.

Verdict: Klaviyo

4. Template library

For this test, I had two motives. First, to explore the template library, and second, to see what templates are available in the free version.

Mailchimp makes templates hard to miss. You can access them right from the homepage, which I liked. While there are 378 templates available in the library, only 7 basic layouts can be used under the free plan.

Mailchimp also gives you different ways to start:

• Basic layouts
• Fully designed templates
• Code your own template

The “code your own” option stood out. You can paste HTML, upload a ZIP file, or import from a hosted URL. There’s even an option to create HTML emails directly inside the editor. But sending those emails requires a paid plan.

What I liked was how the templates are organized. You can filter them based on:

• Purpose like newsletters, announcements, events, and product sales
• Style like minimal, bold, playful, or professional
• Industries like e-commerce, education, finance, health, and more

This made it easy to narrow things down quickly. Even though the free options are limited, the browsing experience itself felt well thought out.

Compared to Mailchimp, it takes an extra click or two to access the templates in Klaviyo. But that didn’t slow me down. However, once I got there, the difference showed up.

Klaviyo has a smaller library in terms of total numbers, but a large portion of it is available for free. I came across a wide range of templates that I could use without upgrading, which made a big difference.

The filtering options were also more detailed. I could sort templates based on:

• Use cases like sales, reminders, confirmations, outreach
• Platform-specific needs like Shopify
• Layout types like one-column or multi-column
• Partner-created templates

What stood out most was the seasonal filter. I could directly pick templates for events like Black Friday, Christmas, Valentine’s Day, or events like back-to-school campaigns. That saved time because I didn’t have to adapt a generic template for a seasonal campaign.

This is where Klaviyo’s style comes into play again. It provides more depth, plenty of options, and more structure.

Mailchimp has a larger library and makes templates easy to access. But the free plan feels restricted.

Klaviyo offers fewer templates overall, but more of them are usable without upgrading. The filters, especially for seasons and campaigns, made it easier for me to find something relevant without having to start from scratch.

Verdict: Klaviyo

5. Email campaign building

This was where the difference between Mailchimp and Klaviyo became clearest. Mailchimp felt stronger for building the actual email, while Klaviyo offered more control around campaign setup.

Mailchimp keeps campaign building simple. I could choose to build from scratch, use a template, or add HTML code. Once inside the builder, the layout was easy to follow, with the email preview and editing options close together.

The editor felt rich without being overwhelming. Mailchimp offered a wide range of drag-and-drop blocks, including buttons, images, video, social icons, products, recommendations, surveys, headers, footers, and code. It also gave me several layout options, from simple one-column emails to more flexible multi-column structures.

What stood out most was the level of design control. I could adjust background colors, text styles, button shape, link colors, spacing, image alignment, logo placement, and mobile-specific settings in some areas. The builder also included optimization tips while I worked, which made the experience feel helpful without slowing me down.

Mailchimp’s main strength was speed and creative ease. It felt like the better option for building a polished email quickly, especially from scratch.

Klaviyo takes a more layered approach. Before I reached the email editor, it asked for campaign details such as campaign name, type, channel, tags, audience, and exclusions. I could also choose between email, SMS, WhatsApp, and push notifications, which made the setup feel broader than a standard email campaign flow.

I liked that Klaviyo gave more control before the email was built. Features like smart sending, list or segment exclusions, and customizable UTM tracking made the campaign setup feel more advanced. It treated the campaign less like a standalone email and more like part of a larger customer messaging strategy.

The email editor itself covered the basics well. Klaviyo offered drag-and-drop blocks for text, images, buttons, dividers, social links, tables, and video, along with prebuilt headers and footers. It also included styling controls for padding, background, borders, and mobile optimization. I could also build the email using the template library, a blank template, a text-only editor, or an HTML editor.

Klaviyo also offers a brand voice feature tied to subject lines, though that becomes more useful once your account has enough history.

That said, the editor felt lighter than Mailchimp’s, especially on the free plan. I could still build a solid email, but I did not feel the same level of creative flexibility or design depth. Klaviyo’s strengths were more visible in campaign logic, audience control, A/B testing, tracking, and channel setup.

Mailchimp was better for actually designing the email. The editor felt richer, easier to use, and more complete, especially if I wanted to build the campaign from scratch. Klaviyo was better for campaign setup depth. It gave me more control over channels, exclusions, tracking, and campaign logic before the email even went out.

Verdict: Split; if the goal is to build an email fast and shape the design easily, I’d pick Mailchimp. If the goal is to set up a more structured campaign with tighter controls, Klaviyo makes more sense.

6. Free plan

This test was less about feature count and more about what I could still do without paying.

Mailchimp felt broader on free. It gave me more tools to explore, but some core email functions quickly hit limits, especially scheduling, branding, and deeper targeting.

Klaviyo felt narrower but more focused. The free tier kept the main email-and-SMS workflow intact, along with reporting and basic segmentation, so it felt more useful for testing the core use case.

Verdict: Split; Mailchimp gives a broader starter kit, but Klaviyo gives a stronger core kit if your main use case is targeted email and SMS.

7. Pricing

I looked at the pricing of Mailchimp and Klaviyo, and while both offer free entry points, their pricing structures reflect very different use cases and audiences.

The key difference is simple: Mailchimp uses plan tiers, and your price scales with your contact tier. Klaviyo is more modular. You pay for the core marketing plan, then add analytics, reviews, or service products separately, with pricing tied to active profiles, orders, tickets, or conversations.

Note: The pricing has been taken from Mailchimp’s website.

Mailchimp is easier to understand because the plans follow a familiar tier structure. The trade-off is that more advanced targeting, reporting, and automation features are pushed into the higher plans.

Klaviyo doesn’t follow fixed tiers the same way. It splits pricing into Email, Email plus Mobile, and additional data and service layers.

Note: The pricing has been taken from Klaviyo’s website.

Klaviyo gives you more flexibility because you can build around email first and add products as needed. The trade-off is that pricing is less predictable, since costs rise with active profiles and can increase quickly if your list is not well-maintained.

Verdict: Split; Mailchimp is a better fit if you want predictable pricing and a simple setup. Klaviyo is a better fit if you already know your requirements and want more control over how you pay and what you use.

Klaviyo vs. Mailchimp: My evaluation scorecard

Here’s a table summarizing all my tests with the winner and the reason.