The 7 Best Mailchimp Alternatives in 2026

Brevo (formerly Sendinblue) is the most direct answer to the single thing people hate most about Mailchimp: the billing model. Instead of charging by contact count, Brevo charges by emails sent — so a big list of mostly-quiet subscribers doesn't quietly balloon your invoice. On top of that you get SMS, a genuinely usable free CRM, landing pages and automation, all from a European company with EU hosting, which matters if GDPR is on your mind. For most small businesses leaving Mailchimp over price, Brevo is the natural landing spot.

The trade-offs are polish and depth. The interface is functional rather than delightful, the template editor feels a notch behind Mailchimp's, and the automation builder, while capable, can get fiddly on complex flows. And like every tool here, Brevo is still an email-and-messaging platform — it doesn't write your social posts, run your blog or coordinate a multi-channel campaign for you. It's an excellent, fairly-priced ESP; it's not the whole marketing function the way KAIROS aims to be.

Kit (the rebrand of ConvertKit) is unapologetically built for creators rather than corporations, and that focus is its strength. The subscriber model is tag-based instead of list-based, which suits the way creators actually think — one person, many interests — and the built-in tools for selling digital products, paid newsletters and tip jars mean your email list and your storefront live in the same place. If your business is essentially 'an audience plus things I sell them,' Kit fits like a glove and the free tier up to 10,000 subscribers is genuinely generous.

The flip side is that Kit is plain by design. The email templates are deliberately minimal — great for text-forward newsletters, frustrating if you want rich, branded HTML campaigns like an e-commerce brand would. It's also priced per subscriber once you pass the free tier, so it inherits a softer version of the Mailchimp problem. And it's resolutely an email-and-commerce tool for creators; it won't touch your social calendar or ad campaigns. KAIROS, by contrast, treats the newsletter as one channel inside a coordinated push across email, social and blog.

MailerLite is what a lot of people actually wanted Mailchimp to stay: simple, attractive and cheap. The editor is clean without being limiting, the free tier (up to 1,000 subscribers and 12,000 monthly emails) is real, and the paid plans undercut Mailchimp meaningfully at comparable list sizes. It includes automation, landing pages, forms and even digital-product selling, so for a small business that just wants a good newsletter and a few automated flows without an enterprise bill, it's one of the easiest recommendations on this list.

Where it shows its limits is at the top end. The automation logic is friendly but not as deep as ActiveCampaign's, advanced segmentation is lighter than Klaviyo's, and approval to send can take a little patience for new accounts. It's also, again, an email tool — it does email beautifully and stops there. If you're assembling email plus social plus content plus ads, MailerLite is one tidy piece of that puzzle, whereas KAIROS is built to be the whole board.

ActiveCampaign is where you go when automation is the point. Its visual builder handles genuinely complex logic — multi-branch journeys, conditional waits, lead scoring, site and event tracking — with a depth Mailchimp never matched, and the built-in CRM means marketing and sales share the same contact brain. For a growing B2B or service business that wants behaviour-driven email and a real pipeline in one tool, it's a clear step up from Mailchimp's lighter automation.

That power has a cost in both senses. ActiveCampaign has a real learning curve — the flexibility that experts love can overwhelm someone who just wants to send a newsletter — and pricing scales up quickly with contacts and feature tiers, so the friendly $19 entry point is not where most serious users land. And it remains an email-and-CRM automation platform: it orchestrates contact journeys brilliantly, but it doesn't write your social content, design your visuals or run your ads. KAIROS aims at that broader surface, with the newsletter as one coordinated piece rather than the center of gravity.

If you run an online store, Klaviyo is the email tool built for you specifically. It plugs directly into Shopify and friends, pulls in every order and browse event, and turns that data into revenue-driving flows — abandoned cart, post-purchase, win-back — with dollar attribution sitting right on each automation so you can see exactly what email earned. Its predictive analytics and product-level segmentation are well beyond what Mailchimp offers e-commerce sellers, and for a DTC brand that gap shows up directly in the revenue line.

The flip side is that Klaviyo is narrow and not cheap. All that power is aimed at e-commerce; if you're a B2B SaaS, a consultant or a creator, you're paying for store-centric machinery you'll never use, and the per-contact pricing climbs steeply as your list grows. It's also, by design, an email-and-SMS engine — superb at store flows, silent on social, content and ads. KAIROS is the opposite shape: broader and more coordinated across channels, where the newsletter is one move in a wider campaign rather than a store automation.

Constant Contact is the old hand of email marketing, and its enduring appeal is service. For a restaurant owner, a non-profit or a local shop that finds Mailchimp intimidating, Constant Contact offers real human phone support, patient onboarding and a builder that doesn't assume you're a marketer. It also carries handy extras for that audience — event registration, surveys, basic social posting — that make it more of a small-business toolkit than a pure ESP.

The catch is that you pay for that comfort. Constant Contact is one of the pricier options at comparable list sizes, its automation is shallow next to ActiveCampaign or Klaviyo, and the template editor feels dated to anyone who's used a modern builder. Its social and ad add-ons are convenience features, not serious channels. So while it's a kinder on-ramp than Mailchimp for the non-technical, it's a weaker engine — and a long way from the coordinated, multi-channel marketing team KAIROS is built to be.