Best Mailchimp Alternatives in 2026: Klaviyo

TL;DR

Mailchimp cut its free-plan limits to 250 contacts and 500 monthly sends in 2026 and raised prices again in April for legacy pre-2019 accounts, driving small businesses to compare alternatives. Klaviyo's Email plan starts near $20/month at 500 profiles and scales to roughly $400/month at 25,000, but keeps the same feature set across every paid tier and caps any single price increase at 25%. Brevo prices by emails sent rather than contacts stored — Starter runs about $9/month for 5,000 emails, Standard about $18-69/month depending on volume — making it cheaper for large, infrequently-emailed lists, though there's a steep jump to its $499/month Professional tier with no plan in between.

ActiveCampaign publishes four annual tiers from $15/month (Starter) to $145/month (Enterprise) for 1,000 contacts, and as of November 2025 bills new signups for all stored contacts including unsubscribed and bounced ones. Klaviyo holds the highest G2 rating of the four at 4.6 (1,300+ reviews). The article's guidance is to stay on Mailchimp only if you have a very small list (under 500 contacts) that rarely emails and just wants a well-known, easy-to-use builder.

Best Mailchimp Alternatives in 2026: Klaviyo, Brevo, and ActiveCampaign Compared

Mailchimp remains one of the most recognized names in email marketing, but 2026 has been a rocky year for its pricing. After reducing free-plan limits to 250 contacts and 500 monthly sends and then raising prices again in April 2026 for legacy accounts still on pre-2019 plans, a growing number of small businesses are shopping around. This guide compares Mailchimp against three genuine competitors — Klaviyo, Brevo, and ActiveCampaign — on features, pricing, and who each is actually built for, with every claim traced to a live source.

Product Overview

Direct answer: Mailchimp is Intuit-owned all-purpose email marketing software with a drag-and-drop builder, basic CRM, and add-on landing pages. It bills primarily by contact count regardless of send volume, and its free tier now caps out at 250 contacts and 500 sends per month — a steep cut from its historical 2,000-contact free plan.

Klaviyo is an ecommerce-first platform built around deep Shopify, WooCommerce, and Magento integrations, unified customer profiles, and predictive analytics. Since February 2025 it has priced by "active profiles" rather than total list size, and — unusually for the category — its feature set is identical across every paid tier; you're only ever paying for volume, not for unlocking features.

Brevo (formerly Sendinblue) is a France-based all-in-one platform that stands out for pricing by emails sent rather than contacts stored, making it attractive for businesses with large, low-frequency lists. It also bundles transactional email, SMS, and WhatsApp messaging into one account rather than requiring a separate product the way Mailchimp does with Mandrill for transactional mail.

ActiveCampaign leans hardest into marketing automation and CRM, with branching workflows, predictive sending, and native sales-pipeline tools starting on its Plus tier. It's the most automation-heavy of the three alternatives here, and consistently pulls the highest customer-satisfaction marks of the group on G2.

Quick Answer

If you have a very small list (under 500 contacts) that rarely emails → stick with Mailchimp, because the article's own guidance says it still suits a well-known, easy-to-use builder at that scale.
If you have a large list you email infrequently → Brevo, because it prices by emails sent rather than contacts stored, unlike Mailchimp, Klaviyo, or ActiveCampaign.
If you want the same feature set no matter which tier you pay for → Klaviyo, because its feature set is identical across every paid tier, so you're only ever paying for profile volume.
If automation and CRM depth matter most and you don't need a free plan → ActiveCampaign, because it leans hardest into marketing automation and CRM with native sales-pipeline tools from its Plus tier.
If you're on a legacy pre-2019 Mailchimp plan → reconsider, because Mailchimp raised prices again for those accounts in April 2026.

Feature Comparison Matrix

Feature	Mailchimp	Klaviyo	Brevo	ActiveCampaign
Free plan	250 contacts, 500 sends/mo	250 active profiles, 500 sends/mo	Unlimited contacts, ~300 emails/day	None (14-day trial only)
Pricing basis	Contacts stored	Active profiles	Emails sent	Contacts + tier
Built-in CRM/sales pipeline	Basic only	No (ecommerce profiles)	Add-on (Sales Essentials/Advanced)	Native, from Plus tier up
SMS/WhatsApp in core plans	Add-on	SMS credits included	Metered separately	Add-on
Transactional email	Requires separate Mandrill product	Included	Included on paid plans	Add-on
Advanced automation branching	Standard tier and up (200 journey points)	All paid tiers (feature-parity)	Standard tier and up	All tiers, deepens with Pro
Landing pages	Standard tier and up	Not a core feature	Standard tier and up	Plus tier and up
G2 rating (reviews)	4.4 (18,000+)	4.6 (1,300+)	4.5 (2,700+)	4.4 (14,600+)

Sources for the matrix figures are cited individually below in Pricing and Sources.

Pricing Comparison

Direct answer: Klaviyo's free plan covers 250 active profiles and 500 email sends/month; its paid Email plan is reported to start near $20/month at 500 profiles, scaling to roughly $100 at 5,000 and $400 at 25,000. Every paid tier — from entry-level to enterprise — includes the same feature set, so you're purchasing send volume, not unlocking capability. Klaviyo caps any single price increase at 25% and moves accounts over 250,000 profiles to custom enterprise billing.

Brevo prices by monthly email volume instead of list size. Reported figures put the Starter plan around $9/month for 5,000 emails, Standard around $18/month at low volumes (about $69/month at 20,000 emails), and a large jump to a Professional tier near $499/month — with no tier in between for businesses that outgrow Standard but don't need full Professional. Removing the Brevo logo from the Starter plan requires a separate add-on.

ActiveCampaign publishes four annual-billing tiers: Starter at $15/month, Plus at $49/month, Professional at $79/month, and Enterprise at $145/month, each priced for 1,000 contacts and scaling upward with list size. Annual billing saves roughly 20%, and as of November 2025 new signups are billed for all stored contacts — including unsubscribed and bounced ones — a change that doesn't apply to pre-existing accounts.

Who Should Choose What

Stick with Mailchimp if you're a very small list (under 500 contacts) that rarely emails and wants a well-known, easy-to-use builder — but budget for cost increases as your list grows, since pricing pain is the single most common G2 complaint about the platform.
Choose Klaviyo if you run an ecommerce store, especially on Shopify, and want predictive analytics and identical features at every tier. Be aware the active-profiles billing model introduced in 2025 has drawn sharp criticism on Trustpilot even as G2/Capterra ratings stay high.
Choose Brevo if your list is large but you email infrequently, or you want transactional email, SMS, and marketing email in one bill without paying per-contact. Watch for the steep Standard-to-Professional price jump if you outgrow the mid-tier.
Choose ActiveCampaign if marketing automation and a built-in CRM/sales pipeline matter more than raw email-sending simplicity — it holds strong satisfaction scores across G2's 2026 award lists, but dual scaling by both tier and contact count means costs can climb quickly at scale.