What AI said about email marketing software in September 2026

Here’s the practical shortlist of email marketing software people actually use in 2026, with “best for” guidance rather than a generic ranked list.

My quick recommendation

If you want the safe default, pick Mailchimp.

If you run ecommerce, start with Klaviyo — or Omnisend if you want something simpler/cheaper.

If you are a B2B company with a sales team, choose HubSpot.

If you care most about automation power, choose ActiveCampaign.

If you are a local business, nonprofit, or event-driven organization, choose Constant Contact.

If you want low-cost, straightforward email, compare Brevo and MailerLite.

Best Email Marketing Software (2026)

There's no single "best" tool—it depends on your business type—but a handful of platforms dominate real-world usage. Here's a breakdown by category:

🏆 Most Widely Used / Best All-Around

Mailchimp – Still the biggest name in the space. Mailchimp remains the most recognised email marketing name globally, with over 11 million users, and its ecosystem of 800+ native integrations—from Shopify to Salesforce—is unmatched. However, its free plan has been significantly scaled back in recent years, automation is now paywalled, and pricing scales steeply as your list grows past 1,500 contacts. It's best if you're already embedded in tools that integrate natively with Mailchimp.

Brevo – A strong all-rounder, especially for growing businesses. It offers up to 100,000 contacts on the free plan — far more than most competitors — and paid plans are priced based on email volume rather than contact tiers, meaning costs scale with how much you actually send, not just list size. It combines core email features, automation, and multichannel tools (SMS, WhatsApp, live chat) in one place.

🛒 Best for Ecommerce

Klaviyo & Omnisend – The go-to picks for online stores. One tester noted: Omnisend is the best email marketing platform for eCommerce businesses tested, with revenue attribution more granular than Klaviyo's, smooth omnichannel workflows, and significantly lower cost.

Drip – Built specifically for online retailers. It's purpose-built for online stores, ties every email to revenue, and runs behavioral automations off real store data instead of generic newsletter blasts.

⚙️ Best for Advanced Automation

ActiveCampaign – Known for its powerful workflow builder. It has more than 1,000 integrations including native integrations with Salesforce, Calendly, Webflow, Zendesk, DocuSign, and most major eCommerce platforms, plus a best-in-class visual automation builder with 135+ triggers, if/else branching, and split-testing entire automation paths.

💼 Best for B2B / CRM-Integrated Teams

• HubSpot & Brevo – for teams needing a CRM built in
• ActiveCampaign, Customer.io, or HubSpot – for B2B/sales-led businesses that need CRM sync and lifecycle triggers

💡 Best Budget-Friendly / Free Options

• Sender – one of the most generous free plans on the market, giving you up to 2,500 subscribers and 15,000 emails per month with automation, segmentation, and a drag-and-drop editor—no credit card required.
• Kit (formerly ConvertKit) – provides the most generous creator free tier around, supporting up to 10,000 subscribers, great for newsletter creators.
• EmailOctopus – offers 2,500 contacts and 10,000 emails/month free, ideal for simple newsletters.
• MailerLite – Still solid, though its free plan now covers just 250 subscribers and 2,500 emails a month after its June 2026 update, so it's no longer the free-tier standout it once was.

🚀 Best for Startups/SaaS

For SaaS/Software, Sequenzy, Customer.io, or Loops are strong picks; for early-stage startups, Sequenzy, Loops, or MailerLite tend to fit best since stage and pricing flexibility matter more than a generic ranking.

Quick Recommendation Summary

| Use

The best email marketing software depends on your use case, but the most consistently recommended and widely used brands are Mailchimp, HubSpot, ActiveCampaign, Brevo, Klaviyo, Constant Contact, and GetResponse. If you want the safest “top brands” shortlist, Mailchimp is the broad all-around pick, HubSpot is strongest as an all-in-one marketing/CRM platform, and ActiveCampaign is repeatedly ranked best for automation.

Here’s a practical top-pick breakdown:

• Mailchimp — best overall for many small and mid-sized businesses; widely recognized, easy to use, and commonly used.
• HubSpot Marketing Hub — best if you want email plus CRM, sales, and broader marketing tools in one platform.
• ActiveCampaign — best for advanced automation and CRM-driven email workflows.
• Brevo — strong all-in-one option for marketing automation and multichannel campaigns, including email and SMS.
• Klaviyo — best for ecommerce brands that want behavior-based segmentation and revenue attribution.
• Constant Contact — a common choice for small businesses and teams that want straightforward email marketing tools.
• GetResponse — often recommended for marketers who want email plus webinars or content monetization tools.
• MailerLite — frequently recommended for budget-conscious users and creators who want simplicity.

If you want the products people actually use most, multiple reviews point to Mailchimp, Brevo, MailerLite, Constant Contact, and ActiveCampaign as the most popular small-business choices.

A simple way to choose:

• Choose Mailchimp if you want the most familiar general-purpose option.
• Choose ActiveCampaign if automation matters most.
• Choose HubSpot if you want email tightly connected to CRM and sales.
• Choose Klaviyo if you run ecommerce.
• Choose Brevo if you want a flexible, budget-friendly all-in-one tool.

If you want, I can also give you a ranked top 5 by best value, best for small business, or best for ecommerce.

There is no single “best” email marketing tool—the right one depends on your budget, experience level, and what you’re selling. But these are the most widely used, trusted platforms right now.

Top Email Marketing Software (Ranked by Use Case)

1. Mailchimp – Best all-around for beginners & small businesses

• Why people use it: Huge brand recognition, free plan up to 500 contacts, drag-and-drop editor, basic automation.
• Best for: Solopreneurs, bloggers, local businesses, ecommerce beginners.
• Downsides: Pricing gets expensive as you grow; automation features are limited on lower tiers.

2. Klaviyo – Best for ecommerce & online stores

• Why people use it: Built for Shopify and WooCommerce. Powerful segmentation, personalized product recommendations, abandoned cart flows, and revenue tracking.
• Best for: Online stores, DTC brands, dropshippers.
• Downsides: No true free plan (only free up to 250 contacts but with daily send limits). Steeper learning curve.

3. MailerLite – Best budget option

• Why people use it: Clean interface, affordable flat-rate pricing, includes automation, landing pages, and a free plan up to 1,000 subscribers.
• Best for: Freelancers, creators, small nonprofits, anyone on a tight budget.
• Downsides: Fewer advanced automation triggers than ActiveCampaign/Klaviyo; design options are simpler.

4. ActiveCampaign – Best for advanced automation & CRM

• Why people use it: Powerful email automation, lead scoring, SMS, and a built-in CRM. Very customizable customer journeys.
• Best for: B2B companies, SaaS, coaches, growing marketing teams.
• Downsides: More expensive; steeper learning curve.

5. Brevo (formerly Sendinblue) – Best for transactional email & SMS

• Why people use it: Combines email, SMS, chat, and transactional email in one platform. Pricing is based on volume, not subscriber count.
• Best for: Businesses that send lots of transactional emails (order confirmations, password resets) and need multi-channel messaging.
• Downsides: Email editor feels dated; automation is not as intuitive.

6. ConvertKit – Best for creators, bloggers, and authors

• Why people use it: Simple visual automations, subscriber tagging, and focus on building relationships through email. Great for lead magnets and newsletters.
• Best for: Podcasters, YouTubers, authors, course creators.
• Downsides: Basic design options; no built-in CRM; can be pricey for large lists.

7. Constant Contact – Best for traditional small businesses

• Why people use it: Super easy to use, great support, reliable deliverability. Offers event management and social media tools.
• Best for: Restaurants, salons, real estate, local service businesses.
• Downsides: More expensive than alternatives; fewer advanced automation features.

8. GetResponse – Best for marketers who want everything in one place

• Why people use it: Email automation, webinars, landing pages, and sales funnels all included.
• Best for: Digital marketers, info products, small agencies.
• Downsides: Interface can feel cluttered.

Quick Comparison Table

Which should you pick?

• Running an online store? → Klaviyo
• Completely new to email marketing? → Mailchimp or MailerLite
• Need advanced automation for B2B? → ActiveCampaign
• On a tight budget? → MailerLite (best free plan)
• Building a personal brand / selling courses? → ConvertKit
• Need email + SMS + transactional messages? → Brevo

👉 Pro tip: Most of these offer free trials or a free tier. Connect your email list and test the editor, automation, and deliverability for yourself before committing.

The top email marketing platforms that people actually use in 2026 are Mailchimp, Klaviyo, Brevo, ActiveCampaign, MailerLite, and HubSpot Marketing Hub. These consistently rank highest in market share analyses, user reviews (G2, Capterra), independent tests, and real-world adoption across websites and platforms like Shopify.

There is no universal “best” tool—it depends on your business size, focus (e.g., general marketing vs. ecommerce), budget, and needs like automation depth or multichannel support. Mailchimp leads overall popularity, while Klaviyo dominates ecommerce. Here are the standout options based on actual usage data and expert/user feedback:

1. Mailchimp (Most Popular Overall)

• Why it’s widely used: Holds the largest market share (~43% in web detection data) and is the most recognizable brand for SMBs and beginners. It offers an intuitive drag-and-drop editor, extensive templates, automations, A/B testing, and hundreds of integrations (Shopify, WordPress, Zapier, etc.).
• Best for: Small businesses, newsletters, and general marketing campaigns.
• Pricing: Free plan (up to ~500 contacts); paid starts around $13/month (Essentials/Standard).
• Strengths: Familiar UX, strong deliverability for most users, AI features.
• Drawbacks: Can get expensive as lists grow; some advanced features tiered higher.

2. Klaviyo (Top for Ecommerce)

• Why it’s widely used: ~18.6% overall market share and dominant on Shopify (~37.5% of email marketing app installs). Deep native integrations with Shopify/WooCommerce enable advanced segmentation, predictive analytics, and revenue attribution.
• Best for: Online stores focused on personalized, data-driven campaigns (email + SMS).
• Pricing: Free tier (limited profiles/sends); paid from ~$20/month.
• Strengths: Excellent for behavioral triggers, cart abandonment, and ROI tracking.
• Drawbacks: Steeper learning curve and higher costs at scale for non-ecommerce users.

3. Brevo (Best Value/Multichannel Option)

• Why it’s widely used: Strong market presence (~4%) and frequently praised in reviews for affordability and features. Supports email, SMS, WhatsApp, and CRM in one platform with pay-per-email pricing (unlimited contacts on many plans).
• Best for: Budget-conscious teams, small-to-mid businesses needing multichannel marketing.
• Pricing: Generous free plan (e.g., 300 emails/day); paid from ~$9/month.
• Strengths: High deliverability in tests, automation included on free tiers, cost-effective for larger lists.
• Drawbacks: Template editor can feel less flexible than leaders.

4. ActiveCampaign (Best for Advanced Automation)

• Why it’s widely used: Frequently tops expert “best overall” lists for its powerful workflow builder, CRM integration, lead scoring, and AI features. Popular among mid-market and agencies.
• Best for: Businesses needing complex, behavior-triggered automations and personalization.
• Pricing: Starts ~$15–19/month (no generous free plan; trials available).
• Strengths: Deepest automation logic, excellent deliverability (~93–97% in tests).
• Drawbacks: Higher price and learning curve.

5. MailerLite (Strong Value/Ease-of-Use Pick)

• Why it’s widely used: Solid market share (~3.9%) and high ratings for clean interface, generous free plans, and reliability. Often recommended for creators and SMBs.
• Best for: Newsletters, simple automations, and users wanting high deliverability without complexity.
• Pricing: Free tier; paid from ~$10/month.
• Strengths: User-friendly, strong performance in deliverability tests.

6. HubSpot Marketing Hub (Best All-in-One/CRM)

• Why it’s widely used: Popular for teams already in the HubSpot ecosystem or wanting unified marketing/sales/service tools. Strong in B2B and larger setups.
• Best for: Companies seeking CRM-integrated email with advanced analytics.
• Pricing: Free limited plan; paid from ~$15/seat/month or higher.
• Strengths: Seamless data sync, AI tools, robust reporting.

Other Notable Mentions

• Constant Contact: Reliable for local businesses, nonprofits, and events (~4.6% share).
• Kit (formerly ConvertKit): Favored by creators and newsletter publishers.
• Omnisend or GetResponse: Solid ecommerce or all-in-one alternatives.

Quick advice for choosing: Start with Mailchimp or Brevo for most general needs due to their popularity and accessibility. Go with Klaviyo if you sell online. Test deliverability and ease of use with your own list (many offer free tiers or trials). Factors like list size, send volume, integrations, and compliance (GDPR/CAN-SPAM) matter—check current pricing and reviews on G2/Capterra as they evolve.

These recommendations reflect real adoption patterns rather than just marketing hype. If you share more details about your business (e.g., list size, industry, or specific features), I can refine this further.

The top email marketing software widely used today includes Mailchimp, Omnisend, Flodesk, Klaviyo, Sender, and Salesforce CRM, each excelling in automation, segmentation, and audience engagement features.

1. Mailchimp – Best for Beginners

Overview: Mailchimp is popular for small businesses and first-time email marketers. It provides prebuilt templates, audience segmentation, and a simple campaign builder, helping users send polished emails without deep technical knowledge The CMO. Key Features: Drag-and-drop email editor, automation workflows, analytics, A/B testing. Pros: Easy audience segmentation, robust reporting, beginner-friendly. Cons: Limited advanced automation and multivariate testing available only in premium plans. Pricing: Free plan available; paid plans start at $13/month The CMO.

2. Omnisend – Best for E-Commerce & Segmentation

Overview: Omnisend is tailored for online retailers, supporting email, SMS, and push notifications from a single platform. It allows advanced segmentation based on real-time shopping behavior The CMO. Pros: Omnichannel marketing, Shopify/WooCommerce integration, automation workflows for cart recovery and product recommendations. Cons: Complex interface for non-e-commerce users; may have a learning curve. Pricing: Free plan for up to 250 subscribers; Standard at $11.20/month The CMO.

3. Flodesk – Design-Driven for Creators and Small Businesses

Overview: Flodesk focuses on beautifully branded emails and user-friendly automation for creators, small businesses, and solopreneurs HostAdvice+1. Pros: Patented layout technology ensures consistent design, AI-generated email designs via Flodesk Studio, built-in subject line A/B testing, unlimited sends on paid plans. Cons: Limited native integrations, email-only platform, English-only support. Pricing: Plans start at $19–$25/month, with unlimited emails on paid tiers HostAdvice+1.

4. Klaviyo – Data-Driven E-Commerce Automation

Overview: Klaviyo excels in behavior-based email automation and customer data insights, ideal for medium to large e-commerce stores HostAdvice+1. Pros: Advanced segmentation, AI-driven predictive analytics, integrations with Shopify, WooCommerce, Magento. Cons: Higher price point, primarily suited for e-commerce rather than general businesses. Pricing: Free plan up to 250 contacts; paid plans start at $45/month The CMO.

5. Sender – Affordable and Feature-Rich for SMBs

Overview: Sender balances usability and advanced automation for small to medium businesses. It includes prebuilt workflows for engagement and cart recovery HostAdvice. Pros: Intuitive for beginners, strong automation even on free plans, real-time analytics. Cons: Limited design templates, mobile app could improve. Pricing: Free for 2,500 subscribers and up to 15,000 emails/month; Starter $8/month HostAdvice.

6. Salesforce CRM – Enterprise Automation Leader

Overview: Salesforce CRM supports complex automated campaigns, multi-channel email, and detailed customer journey tracking, suitable for mid-sized to large enterprises The CMO. Pros: Powerful automation, integration with Salesforce ecosystem, extensive analytics. Cons: Expensive, learning curve due to advanced features. Pricing: Starting at $25/user/month; 30-day trial available The CMO.

Choosing the Right Platform

When selecting an email marketing software, consider:

Purpose and scale: E-commerce vs. general business or creator-focused campaigns. Automation needs: Do you require advanced behavioral workflows? Design flexibility: Is branding and email aesthetics a priority? Budget and scalability: Consider email volume, integration cost, and potential growth. Deliverability and analytics: Platforms with strong reputations ensure better inbox placement and actionable reports.

These six platforms are highly regarded and actively used in 2026, offering options for beginners, small businesses, creators, and enterprise users alike.

The best email marketing software platforms are defined by specific business use cases rather than a single "one-size-fits-all" product. The industry standard tools that professionals actually use to manage their subscriber bases effectively scale from simple newsletter creation to advanced enterprise marketing automation.

Summary Comparison of Top Email Marketing Software

In-Depth Breakdown of Top Industry Tools

Klaviyo: E-commerce Standard: This is the dominant platform for online retailers running on platforms like Shopify or WooCommerce. It synchronizes customer shopping data in real time to fuel ultra-targeted automated segments. Key Features: Built-in predictive analytics, behavioral SMS triggers, and powerful abandoned cart automation sequences. ActiveCampaign: Automation Powerhouse: Ideal for service businesses, B2B companies, and complex lead-nurturing funnels. It features one of the most flexible visual automation builders on the market. Key Features: Multi-channel workflows (email, SMS, site messaging), lead scoring capabilities, and a built-in sales CRM. HubSpot Marketing Hub: All-In-One Enterprise: Best for scaling companies that need their email tool natively connected to a powerhouse CRM infrastructure. It unifies marketing campaigns directly with sales and customer support activities. Key Features: Native multi-step forms builder, smart visual workflows, and AI content editing assistance. MailerLite: User-Friendly Value: Highly recommended by digital marketers for small businesses and independent creators who need simplicity without losing advanced functionality. Key Features: Clean, distraction-free drag-and-drop editor, simple dynamic content blocks, and landing page creation. Brevo (formerly Sendinblue): Flexible Architecture: Perfect for startups and businesses that have large subscriber lists but only send occasional mass messages. You aren't penalized for having a massive contact database. Key Features: Excellent transactional email SMTP relay (password resets, order receipts) side-by-side with your marketing list dashboards. Beehiiv: Media & Newsletter Growth: Specifically designed for publishers, content creators, and businesses whose core product is the email newsletter itself. Key Features: Native subscription paywalls, digital referral programs, and access to a premium newsletter ad network for easy monetization.

To help narrow this down to the single best fit, tell me:

What type of business do you run (e.g., e-commerce shop, SaaS, B2B service, or personal newsletter)? How many subscribers do you currently have? Do you need complex automations based on user behavior, or just simple broadcast blasts?