AI has completely transformed the way email marketing works. The best tools in 2026 don’t just send or host emails anymore; they help you write them, pick the right audience, choose the optimal send time, and even adjust campaigns in real time based on subscriber behavior. They generate subject lines, personalize messages, and continuously improve performance. If you’re still sending the same email to your entire list, you’re already falling behind.

To help you choose the right platform, we tested dozens of email marketing services against real-world use cases, from solo creators and startups to growing teams running complex automations. We focused on AI capabilities, deliverability, ease of use, and privacy compliance. Our top pick remains Mailchimp for most users, but we will also show you the best alternatives for CRM automation, e-commerce, multichannel campaigns, and small budgets.

Our Top Picks at a Glance

• Best overall: Mailchimp – Clean interface, insightful reports, and a visual journey builder.
• Best for CRM automation: HubSpot – Combines email with powerful CRM workflows and AI Copilot.
• Best for creators and small teams: MailerLite – Budget-friendly, flexible, and easy to use.
• Best for multichannel campaigns: Brevo – Email, SMS, and WhatsApp in one dashboard.
• Best for e-commerce automations: Klaviyo – Built for online stores and revenue-focused flows.

What is the best email marketing software right now?

Right now, Mailchimp is our go-to pick for most people. It’s simple, reliable, and packed with enough features without feeling cluttered. For those who need deeper CRM integration, HubSpot is an excellent alternative, especially if you already use its sales and marketing tools. MailerLite is ideal for automation enthusiasts who want behavior-based flows without paying enterprise prices.

The best email marketing software in 2026

1. Mailchimp – Best email marketing software overall

Pros:

• Clean UI
• Insightful campaign reports
• Good deliverability for large audience segments
• Visual journey builder

Cons:

• No analytics on the free plan
• Cost goes up quickly as contacts grow

Mailchimp remains the benchmark for email marketing software. If you’re new to email marketing and want a powerful platform that’s easy to start with, Mailchimp has to be at the top of your priority list. You can instantly sign up for its free plan and build your first campaign. Step-by-step buttons guide you through importing or creating your contact list, connecting integrations, and importing your brand persona. Within minutes, your first email or SMS campaign is ready to go.

The drag-and-drop editor simplifies the entire setup process, though the free templates are somewhat basic unless you pay. The automation builder lets you trigger emails based on sign-ups, tags, events, or custom criteria. During testing, we tried both prebuilt and custom journeys; while it takes a few minutes to learn the flow, it’s flexible and powerful once you understand it. However, Mailchimp discontinued Classic Automations in mid-2025, so returning users may need to rebuild their workflows and possibly pay for features that were once free.

Mailchimp’s dashboard recommends flows for common goals such as welcoming new contacts, sharing content with Meta leads, or sending birthday discounts. These flow templates save significant time for tasks like recovering abandoned carts or nurturing repeat buyers. On the Free plan, you can preview these flows, but you must upgrade to launch them fully. The visual flow builder is approachable even for automation novices.

Plans start free with 500 contacts and scale with list size. Paid plans include Essentials from $13 per month, Standard from $20 per month, and Premium from $350 per month for 10,000+ contacts. A Pay As You Go plan is also available for occasional senders. Free trials run for 14 days on paid plans, and nonprofits receive a 15% discount.

Mailchimp features: Email and SMS campaign builder, prebuilt automation flows, list segmentation and tagging, signup forms and popups, landing page builder, 250+ integrations, 14-day free trial on paid plans.

2. HubSpot – Best email marketing software with CRM automation

Pros:

• Generous free plan
• In-depth guides
• Built-in AI Copilot

Cons:

• Overwhelming interface

HubSpot is built for marketers who want email to work hand-in-hand with CRM data, sales outreach, and long-term customer journeys. During testing, the biggest advantage was seamless integration: everything is already connected. Creating an email starts with three options: regular, automated, or blog-triggered. From there, you enter a clean editor with clearly laid-out modules.

Once you draft an email and select a contact list, you can move into the automation segment. HubSpot’s visual workflow builder supports branching logic, lead scoring, and goal tracking. A campaign can start from a form submission, email click, or blog visit. HubSpot handles the branching, determining which content goes to which segment, who receives follow-ups, and when to pause. This gives you the feeling of managing a full marketing system rather than just drafting emails.

Reporting tools are better than most platforms. The Analyze and Health tabs offer real-time deliverability benchmarks, and you can build custom dashboards that combine email, sales, and web behavior metrics. This is ideal for tying campaign results directly to business outcomes.

HubSpot’s AI Copilot is built into the editor’s right-hand side. You can use it to summarize contact info, research companies, or rewrite subject lines based on tone. In testing, this saved significant time, especially when adjusting a promo’s tone without sounding robotic.

The free plan allows 2,000 sends per month, which is enough for most small lists. For more complex workflows or to remove HubSpot branding, you must upgrade to the Marketing Hub Pro plan. Paid tiers include Marketing Hub Starter at $9 per month, Marketing Hub Professional at $800 per month (with 2,000 contacts), and Marketing Hub Enterprise at $3,600 per month (with 10,000 contacts). The Professional and Enterprise plans require one-time onboarding fees starting at $3,000 and $7,000 respectively, so it’s a serious investment once you scale.

HubSpot features: Visual journey builder, built-in deliverability health check, AI content assistant (Copilot), custom dashboards and analytics, list suppression rules, 2,000 sends per month on the free plan.

3. MailerLite – Best email marketing software for creators and small teams

Pros:

• Integrates with 140+ tools
• Landing page builder
• Prebuilt automations
• Low-cost A/B testing

Cons:

• Doesn’t work with Gmail accounts directly for sending
• Free plan lacks automation templates

MailerLite can help you run email campaigns, create automations based on subscriber behavior, develop forms, landing pages, and more. It is a truly all-around marketing tool for generating leads and building a community around your product.

The drag-and-drop editor makes campaign creation simple. You can choose from regular, A/B, auto-resend, and even RSS campaigns. The regular campaign flow includes a subject line preview pane, personalization tokens, and sender settings up front, before you even enter the design editor. The editor shows live previews as you tweak blocks, and there are useful content blocks like countdown timers, image galleries, and coupon codes. You can also save any campaign as a custom template for future reuse.

Forms and landing pages use the same visual interface, giving you a consistent experience. You can build pop-ups, embedded forms, or full landing pages, and adjust success messages, trigger timings, and confirmation flows without leaving the builder. This is especially useful for double opt-in flows, letting you see exactly what subscribers will experience.

MailerLite’s automation setup is dynamic. You choose a trigger, such as “subscriber joins a group” or “clicks a link,” and then build a visual flow using delays, emails, and conditions as simple drag-and-drop blocks. In testing, we created a three-email onboarding flow with a condition and a time delay in under 10 minutes. MailerLite may not offer the most advanced AI, but it gives you all the essential tools in a manageable, human way.

On analytics, all paid plans include open rates, click-through rates, unsubscribes, and heatmaps. The free version lacks deep breakdowns and comparative reporting, but it’s enough to understand performance. You can also resend to unopened recipients with one click or schedule automatic resends.

Plans start free with up to 1,000 subscribers and 12,000 monthly emails. Paid plans include Growing Business at $10 per month and Advanced at $20 per month. Automations, dynamic content, and click maps require a paid plan. New users get a 30-day trial of all premium features.

MailerLite features: Drag-and-drop campaign builder, popups and embedded forms, prebuilt and custom automations, landing page builder, subscriber segmentation, smart resend and A/B testing, 30-day premium trial for new users.

4. Brevo – Best email marketing software for multichannel campaigns

Pros:

• Beginner friendly
• Smooth list management
• Real-time previews
• Multichannel campaigns

Cons:

• Limited daily email sends on the free plan
• Custom branding locked behind paid tiers

Brevo handles marketing and transactional emails from one unified dashboard. You can start a campaign by naming your email, choosing recipients, and customizing the subject line. Personalization tokens like first name are immediately available in the subject field, with built-in fallbacks. For branding, you enter a website URL and Brevo automatically pulls your logo, colors, and fonts. It isn’t perfect, but it gets you about 80% of the way there.

The email editor is intuitive. You have full control over blocks, sections, and brand styles. During testing, we dragged in a banner image, wrote a welcome header, and used Brevo’s AI assistant to generate paragraph text. The “shorten” and “friendly tone” features worked exceptionally well. Adjusting padding, centering content, and changing button styles took just a few clicks. Mobile previews update in real time without refreshing the entire editor.

Brevo also allows you to save templates and reuse custom sections such as CTAs and image blocks across different campaigns. Everything syncs via the Templates tab and Content Library, so you never have to rebuild layouts from scratch.

Scheduling options include sending now, scheduling later, or using an AI-driven “best send time” based on engagement. Once live, Brevo displays opens, clicks, bounces, unsubscribes, and heatmaps. It doesn’t go as deep into CRM metrics as HubSpot, but for basic and mid-tier needs, the data is actionable and accessible.

The free plan is capped at 300 emails per day, suitable for testing the platform. Starter plan begins at $9 per month and lifts the daily cap, offering up to 5,000 emails per month, 24/7 support, and basic analytics. Removing Brevo’s logo is an add-on. Workflows, predictive sending, landing pages, and multiuser access require the Business plan, starting at $18 per month, which also includes A/B testing, advanced statistics, and phone support.

Brevo features: 150+ integrations, 50+ free email templates, predictive sending AI, prebuilt content blocks, real-time delivery rates.

5. Klaviyo – Best email marketing software for e-commerce automations

Pros:

• Built for DTC brands
• Email split testing
• Behavioral segmentation
• Helpful AI testing tools

Cons:

• Not beginner-friendly
• Expensive

If you run an e-commerce store, especially on Shopify, Klaviyo is built to handle the retention tactics you need once ads start to plateau. Whether it’s segmentation, automation, or campaign targeting, Klaviyo is already wired for online sales.

During testing, we started with branding and domain authentication, synced a store, and then built core flows. Klaviyo’s automation section (“Flows”) includes prebuilt templates for welcome, abandoned cart, and post-purchase flows. These are focused on revenue recovery. For example, an abandoned checkout flow triggers based on checkout start events and dynamically pulls in product details. Add a follow-up reminder and urgency-based CTA, and you have a high-performing series live in under an hour. You can also layer in browse abandonment, win-back, and review request flows.

Campaigns are highly detailed. You can build an engaged segment based on open and click activity in the last 60 days, select a template, drop in product images, and track ROI per email sent. Klaviyo shows opens, clicks, conversions, and syncs revenue data directly from Shopify or WooCommerce.

Signup forms are equally customizable. You can set up a two-step popup with email and SMS fields, target by device, and delay the trigger for a few seconds after load. In our tests, adding a “No thanks, I’ll pay full price” micro-interaction increased opt-ins. Each form can be styled separately for mobile and desktop.

Klaviyo’s free plan includes 500 emails per month to 250 profiles. The Email plan starts at $20 per month for 500 profiles and unlocks full reporting dashboards, AI content generation, logo removal, and ongoing support. For predictive analytics and multichannel features, the Email + SMS plan starts at $35 per month.

Klaviyo features: Cross-channel flows, automated smart send time, Shopify and WooCommerce integrations, 160+ customizable email templates, dynamic product content, 70+ customizable form templates.

Other email marketing software worth considering

Constant Contact

If you have a small business, Constant Contact is a great alternative option with intuitive UI and a wide range of third-party integrations. It offers solid email campaign management, event marketing tools, and a library of templates suitable for local businesses and nonprofits.

Zoho Campaigns

Zoho offers more than just email marketing; its suite includes social media tools, CRM, a website builder, and more. If you’re looking for an entire business software ecosystem at a competitive price, Zoho Campaigns integrates seamlessly with Zoho CRM and other Zoho apps.

Comparison of the best email marketing software

Mailchimp is the best overall for beginners and small businesses. HubSpot excels when you need deep CRM integration and advanced automation. MailerLite is ideal for creators who want an affordable, user-friendly tool. Brevo stands out for multichannel campaigns across email, SMS, and WhatsApp. Klaviyo is the clear winner for e-commerce businesses that rely on revenue-driven flows.

Here’s a quick comparison of free plans, ease of use, starting prices, and key features:

• Mailchimp: Free plan with 500 contacts; easy; from $13/month; visual builder, Meta lead flows, 250+ integrations.
• HubSpot: Free plan with 2,000 sends; challenging interface; from $9/month; CRM sync, branching workflows, AI Copilot.
• MailerLite: Free plan with 1,000 subscribers; easy; from $10/month; landing pages, automations, smart resend.
• Brevo: Free plan with 300 emails/day; easy; from $9/month; email, SMS, WhatsApp, predictive send time.
• Klaviyo: Free plan with 250 contacts; moderate; from $20/month; e-commerce flows, ROI tracking, Shopify sync.

How to choose the right email marketing software

First, consider how you plan to use email. Are you sending a monthly newsletter to a few hundred people, or are you managing dozens of automated flows across segments and syncing with an online store? That baseline makes a huge difference. Mailchimp might be enough for a solo creator, while Klaviyo is better for multistep automations that require real-time syncing with customer activity.

Next, evaluate how the platform handles contact growth. Many tools look affordable under 500 contacts, but pricing can jump dramatically at 2,000 or 10,000. Always check long-term costs before committing.

Deliverability and list hygiene are also critical. The ideal platform helps you stay off spam lists, clean inactive subscribers, and improve open rates. HubSpot and Brevo offer robust built-in analytics and suppression tools for this purpose.

AI features are another consideration. Most platforms now include some form of AI writer or subject line assistant, but their usefulness varies. We found that Brevo and Klaviyo integrate AI suggestions particularly well without overwhelming the user.

Finally, usability matters. We timed how long it took to go from account signup to sending a first email. Anything over half an hour, requiring multiple help docs, is a bad sign. MailerLite excels in this area, with a simple, clean interface that keeps you moving.

How we tested these platforms

We manually tested each platform by running actual email campaigns. We created custom signup forms, welcome flows, promotional blasts, and deliverability checks. We also built sequences, set up automations, tweaked templates, and analyzed real reporting data. We paid close attention to the time required to launch a full campaign, the clarity of the UI, the availability of guides, and the value of features unlocked through paid plans.

FAQs on email marketing

Is there a free email marketing software?

Yes, Mailchimp, Brevo, MailerLite, and Klaviyo all offer free plans with basic features such as contact limits, monthly email sends, and access to templates or automations. These are great for beginners or small lists, though most come with limitations like daily send caps, branded watermarks, or restricted automation features.

Is email marketing still effective in 2026?

Yes, email marketing remains one of the highest ROI channels in 2026. With AI-powered personalization, smart automation, and tighter privacy compliance, it continues to outperform many paid media strategies, especially for nurturing leads and retaining customers.

How many emails can I send without getting marked as spam?

There’s no fixed number. It depends on sender reputation, engagement rates, and list quality. To avoid spam filters, always use opt-in lists, personalize content, maintain healthy engagement, and authenticate your domain.

Source: ZDNET News